3D printer feeding detection device fed back through acceleration sensor

Abstract

The 3D printer feeding detection device comprises a first support, a mounting block, a roller and the acceleration sensor, the mounting block is located at the lower end of a feeding port of a 3D printer, the mounting block is arranged on the first support, the roller is arranged on the mounting block, the roller makes contact with the lower end face of a wire, and the acceleration sensor is arranged on the first support. The acceleration sensor is arranged on the roller, and in addition, the resilience force of the spring in the compressed state enables pure rolling to occur between the roller and the wire. By means of the mode, whether the problems of nozzle blockage, insufficient feeding, unmatched wire thickness, wire shortage and the like which affect smooth feeding of wires exist in the wires or not is judged according to data measured by the acceleration sensor, that is, the feeding state of the wires is detected through the acceleration sensor; therefore, printing work can be stopped in time when it is detected that feeding is abnormal, an operator is prompted to replace the wires, and economic losses, resource waste and the like are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a 3D printer feeding detection device through feedback from an acceleration sensor. Background Art

[0002] The 3D printing feed port is one of the key components of a 3D printer based on fused deposition modeling technology. Its main function is to transport filamentary materials (filaments) to the heating tube for melting. During the printing process, the existing feed port may have problems such as wire blockage that affect the smooth feeding of wires. If problems such as wire blockage cannot be detected in time, the entire printed product may be scrapped, which in turn causes greater economic losses and waste of resources. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a 3D printer feeding detection device through acceleration sensor feedback, which can solve the problem of detecting wire blockage and other problems that affect the smooth feeding of wire.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a 3D printer feed detection device through acceleration sensor feedback, comprising: a first bracket, a mounting block, a roller and an acceleration sensor, the mounting block is located at the lower end of the feed port of the 3D printer, the mounting block is arranged on the first bracket, the roller is arranged on the mounting block, the roller is in contact with the lower end surface of the wire, and the acceleration sensor is arranged on the roller.

[0007] Preferably, the 3D printer feed detection device with feedback from the acceleration sensor also includes a second bracket, a spring and a cushion block, the second bracket is arranged above the first bracket, the upper end of the spring is arranged on the second bracket, the lower end of the spring is connected to the upper end surface of the cushion block, the lower end surface of the cushion block is in contact with the roller, and the spring is in a compressed state.

[0008] Preferably, the number of springs is two.

[0009] Preferably, the 3D printer feed detection device with feedback from the acceleration sensor further comprises a support and a connecting rod, wherein the support is arranged on the first bracket, one end of the connecting rod is arranged on the support, and the other end of the connecting rod is fixedly connected to the mounting block.

[0010] Preferably, one end of the connecting rod is rotatably disposed on the support.

[0011] Preferably, the 3D printer feed detection device using acceleration sensor feedback further comprises a nozzle, which is disposed at the front end of the feed port.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a 3D printer feeding detection device through acceleration sensor feedback, which has the following beneficial effects: the utility model sets a roller in contact with the lower end surface of the wire, and the acceleration sensor is set on the roller. The wire drives the roller and the acceleration sensor to rotate, and further judges whether the wire is blocked or has other problems that affect the smooth feeding of the wire according to the data measured by the acceleration sensor. That is, the state of the wire feeding is detected by the acceleration sensor, so that when an abnormality in the feeding is detected, the printing work can be stopped in time and the operator can be prompted to replace the wire, thereby avoiding economic losses, waste of resources, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a 3D printer feed detection device through acceleration sensor feedback.

[0015] The numbers in the figure are: 1 first bracket, 2 mounting block, 3 roller, 4 second bracket, 5 spring, 6 cushion block, 7 support, 8 connecting rod, 9 nozzle, 10 wire. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model provides a 3D printer feed detection device through acceleration sensor feedback, including a first bracket 1, a mounting block 2, a roller 3 and an acceleration sensor. The mounting block 2 is located at the lower end of the feed port of the 3D printer, the mounting block 2 is arranged on the first bracket 1, the roller 3 is arranged on the mounting block 2, the roller 3 is in contact with the lower end surface of the wire 10, and the acceleration sensor is arranged on the roller 3. Among them, the acceleration sensor is a sensor that can measure acceleration. The acceleration sensor of the utility model is a prior art, and its specific structure and principle are not described in detail here.

[0018] It can be understood that the wire 10 is fed through the feed port, and the wire 10 synchronously drives the roller 3 and the acceleration sensor to rotate during the feeding. During this process, the acceleration sensor detects the acceleration of the rotation and converts it into an electrical signal; further, the acceleration sensor transmits the electrical signal and feeds it back to the printer main control to determine the wire feeding state, and judges whether the wire has nozzle blockage, insufficient feeding, incompatible wire thickness, wire shortage and other problems that affect the smooth feeding of the wire through the acceleration detected by the acceleration sensor. For example, when the wire is blocked, the acceleration detected by the acceleration sensor is obviously different from the acceleration detected during normal feeding; when the printer main control determines that there is an abnormality in the wire feeding state, it can control the printing device to stop printing at this time, and at the same time, according to the different waveforms of the electrical signal of the acceleration sensor, the error content of the wire feeding can be prompted on the main control panel to prompt the operator to replace the wire.

[0019] Preferably, the utility model may further include a second bracket 4, a spring 5 and a cushion block 6, the second bracket 4 is arranged above the first bracket 1, the upper end of the spring 5 is arranged on the second bracket 4, the lower end of the spring 5 is connected to the upper end surface of the cushion block 6, the lower end surface of the cushion block 6 is in contact with the roller 3, the spring 5 is in a compressed state, and the number of springs 5 ​​may be two. The resilience of the spring 5 in the compressed state causes pure rolling to occur between the roller 3 and the wire 10, thereby improving the detection accuracy of the acceleration sensor.

[0020] Specifically, the utility model may further include a support 7 and a connecting rod 8, wherein the support 7 is arranged on the first bracket 1, one end of the connecting rod 8 is arranged on the support 7, and the other end of the connecting rod 8 is fixedly connected to the mounting block 2. Preferably, one end of the connecting rod 8 is rotatably arranged on the support 7, so that the roller 3 can be easily driven to move up and down, thereby being able to adapt to various thicknesses of wire 10; wherein, when the roller 3 is adjusted to a suitable height by rotating the connecting rod 8, the connecting rod 8 can be kept in a fixed state by a fixing device such as a latch.

[0021] In addition, the utility model further comprises a nozzle 9 , which is arranged at the front end of the feed port. The wire material 10 is transported to the heating tube through the feed port to be melted, and is further ejected through the nozzle 9 .

[0022] The 3D printer feeding detection device of the utility model through acceleration sensor feedback can be specifically applied to 3D printing equipment using plastic filaments such as SLA, PLA, ABS, PETG, and 3D printing equipment using metal filaments such as stainless steel wire 316L metal wire, so as to realize the feeding status detection of various thick and thin filaments.

[0023] Compared with the prior art, the utility model provides a 3D printer feeding detection device through acceleration sensor feedback, which has the following beneficial effects: the utility model sets a roller in contact with the lower end surface of the wire, and the acceleration sensor is set on the roller. The wire drives the roller and the acceleration sensor to rotate. In addition, the resilience of the spring in a compressed state causes pure rolling between the roller and the wire. Further, according to the data measured by the acceleration sensor, it is judged whether the wire is blocked or has other problems that affect the smooth feeding of the wire. That is, the state of the wire feeding is detected by the acceleration sensor, so that when an abnormality in the feeding is detected, the printing work can be stopped in time and the operator can be prompted to replace the wire, thereby avoiding economic losses, waste of resources, etc.

[0024] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3D printer feed detection device using acceleration sensor feedback, characterized in that: include: A first bracket, a mounting block, a roller and an acceleration sensor, wherein the mounting block is located at the lower end of the feed port of the 3D printer, the mounting block is arranged on the first bracket, the roller is arranged on the mounting block, the roller contacts the lower end surface of the wire, and the acceleration sensor is arranged on the roller.

2. The 3D printer feed detection device according to claim 1, characterized in that: It also includes a second bracket, a spring and a cushion block. The second bracket is arranged above the first bracket, the upper end of the spring is arranged on the second bracket, the lower end of the spring is connected to the upper end surface of the cushion block, the lower end surface of the cushion block is in contact with the roller, and the spring is in a compressed state.

3. The 3D printer feed detection device according to claim 2, characterized in that: The number of the springs is two.

4. The 3D printer feed detection device according to claim 1, characterized in that: It also includes a support and a connecting rod, wherein the support is arranged on the first bracket, one end of the connecting rod is arranged on the support, and the other end of the connecting rod is fixedly connected to the mounting block.

5. The 3D printer feed detection device according to claim 4, characterized in that: One end of the connecting rod is rotatably arranged on the support.

6. The 3D printer feed detection device using acceleration sensor feedback according to claim 1, characterized in that: It also includes a nozzle, which is arranged at the front end of the feed port.

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