Material shortage alarm device of 3D printing stock bin type feeding system

Abstract

The utility model relates to the technical field of 3D printer equipment, in particular to a material shortage alarm device of a 3D printing stock bin type feeding system, which comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are aligned, and a distance adjusting mechanism is arranged between the first clamping piece and the second clamping piece. An electric telescopic rod is fixed to the top of the first clamping piece through a support and is transversely and horizontally arranged, and the telescopic end of the electric telescopic rod is connected with a mounting frame. According to the utility model, the mobile monitoring operation can be carried out, the phenomena of local over-high and local over-low caused by stirring of the stirrer can be effectively handled, the monitoring accuracy is ensured, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printer equipment, and in particular to a material shortage alarm device for a 3D printing silo-type feeding system. Background Art

[0002] There are three main 3D printing methods: fused deposition modeling, stereolithography, and powder forming. Fused deposition modeling involves depositing melted material layer by layer. During printing, the device accelerates the melting of filamentary raw materials and selectively deposits the material onto a platform through a nozzle to form a solid object. Stereolithography uses photosensitive resin as the consumable material. Under the influence of light of a specific wavelength, the photosensitive resin undergoes a series of physical and chemical changes to form a solid object. Powder forming uses a laser beam to sinter powder, binding it together. After completing one layer, the next layer is laid, ultimately forming the entire object.

[0003] Regardless of the printing method mentioned above, residual material must be monitored. If the residual material is insufficient, printing will be interrupted mid-print, seriously affecting the continuity of the printing process. Currently, most sensors used for monitoring are set in a fixed position. During use, the agitator's stirring caused by local over-high and local under-low can lead to inaccurate distance measurement and false alarms, seriously affecting the monitoring effect.

[0004] To this end, we propose a material shortage alarm device for a 3D printing silo-type feeding system to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a material shortage alarm device for a 3D printing silo type feeding system.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A material shortage alarm device for a 3D printing silo-type feeding system includes a first clamping piece and a second clamping piece, wherein the first clamping piece and the second clamping piece are aligned and a spacing adjustment mechanism is provided between the first clamping piece and the second clamping piece. An electric telescopic rod is fixed to the top of the first clamping piece through a bracket, the electric telescopic rod is arranged horizontally, and the telescopic end of the electric telescopic rod is connected to a mounting frame.

[0008] Preferably, the spacing adjustment mechanism includes a screw and two polished rods, the two polished rods are symmetrically fixed on the sides of the second clamping piece, the screw is located between the two polished rods and is rotatably set on the second clamping piece, the screw and the two polished rods are all arranged horizontally, one end of the screw thread passes through the first clamping piece, and the two polished rods slide through the first clamping piece.

[0009] Preferably, the first clamping piece and the second clamping piece are matched and arranged on the feed bin, the first clamping piece and the second clamping piece are clamped at the edge of the port of the feed bin, and the opposite sides of the first clamping piece and the second clamping piece are provided with an anti-slip rubber layer.

[0010] Preferably, the mounting frame is provided with a side panel at one end close to the electric telescopic rod, and an opening is provided at the other end of the mounting frame. The side panel is provided with a circular hole and a bolt. The telescopic end of the electric telescopic rod is coaxially provided with a threaded hole. The bolt can pass through the circular hole of the side panel and can match the thread of the threaded hole.

[0011] Preferably, a rubber ring is provided on the side of the side plate facing away from the electric telescopic rod, two protrusions are provided on the side of the side plate corresponding to the electric telescopic rod, and a recessed groove that matches the two protrusions is provided at the telescopic end of the electric telescopic rod.

[0012] Preferably, two bar blocks are symmetrically fixed on the left side of the installation frame, and two annular blocks are symmetrically provided on the right side of the installation frame. The two bar blocks are aligned with the two annular blocks respectively, and the bar blocks can be plugged and matched with the inside of the annular blocks. The upper bar block and annular block are both provided with through holes, and the through holes can be threaded into fastening screws.

[0013] Preferably, the four corners of the mounting frame close to the side plate are fixed with snap blocks, which can be snap-fitted to the end of the mounting frame away from the side plate and can be snap-fitted with the two strip blocks and the two annular blocks respectively.

[0014] Preferably, an alarm body is fixedly connected to the interior of the installation frame, and an infrared sensor and a rangefinder are installed on the alarm body.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model arranges an electric telescopic rod to telescope and control the movement of the installation frame, and an alarm body for monitoring is installed on the installation, which can effectively avoid false alarms caused by inaccurate distance measurement due to the phenomenon of local over-high and local over-low stirring caused by the agitator, effectively ensures real-time and accurate monitoring of the residual material inside the feed bin, and can promptly remind personnel to replace the residual material without the need for real-time supervision by personnel, ensuring that printing will not be interrupted in the middle, and effectively ensuring the continuity of printing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, it is possible for a person skilled in the art to derive other drawings based on these drawings without inventive effort.

[0018] Figure 1This is an axonometric drawing of the present utility model;

[0019] Figure 2 It is a structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the electric telescopic rod and the mounting frame after being disassembled;

[0021] Figure 4 This is a structural diagram of the two installation frames of the utility model that are connected front and back;

[0022] Figure 5 This is a schematic diagram of the structure of the two installation frames of the utility model being docked on both sides;

[0023] Figure 6 It is the main view of the utility model.

[0024] In the figure: 1. First clamping piece; 2. Second clamping piece; 3. Electric telescopic rod; 4. Mounting frame; 5. Alarm body; 6. Screw; 7. Polished rod; 8. Feed bin; 9. Side panel; 10. Bolt; 11. Rubber ring; 12. Bump; 13. Bar block; 14. Ring block; 15. Snap-in block. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] Reference Figure 1-6A material shortage alarm device for a 3D printing silo-type feeding system includes a first clamping piece 1 and a second clamping piece 2. The first clamping piece 1 and the second clamping piece 2 are aligned and provided with a spacing adjustment mechanism between them. A gap is provided between the first clamping piece 1 and the second clamping piece 2, and the gap can be adjusted by the spacing adjustment mechanism. An electric telescopic rod 3 is fixed to the top of the first clamping piece 1 via a bracket. The electric telescopic rod 3 is arranged horizontally, and the telescopic end of the electric telescopic rod 3 is connected to a mounting frame 4, which enables precise telescopic control. The alarm body 5 is fixed to the interior of the mounting frame 4.

[0028] For the above example, those skilled in the art should know that when implementing the above technical solution, the installation frame 4 is a rectangular frame, and the installation frame 4 provides sufficient installation space for the alarm body 5 of set specifications.

[0029] As a technical optimization solution of the present invention, the spacing adjustment mechanism includes a screw rod 6 and two polished rods 7. The two polished rods 7 are symmetrically fixed on the sides of the second clamping piece 2. The screw rod 6 is located between the two polished rods 7 and is rotatably arranged on the second clamping piece 2. The screw rod 6 and the two polished rods 7 are all arranged horizontally. One end of the screw rod 6 is threaded through the first clamping piece 1, and the two polished rods 7 slide through the first clamping piece 1. The two polished rods 7 serve to stably limit the first clamping piece 1 and the second clamping piece 2, ensuring that the first clamping piece 1 and the second clamping piece 2 can move smoothly toward and away from each other. When the screw rod 6 is rotated, the spacing between the first clamping piece 1 and the second clamping piece 2 can be adjusted.

[0030] For the above example, those skilled in the art should know that when implementing the above technical solution, the screw 6 can be rotated by a rotating block provided on the second clamping piece 2 .

[0031] As a technical optimization solution of the present invention, the first clamping piece 1 and the second clamping piece 2 are matched and arranged on the feeding bin 8. The first clamping piece 1 and the second clamping piece 2 are clamped and arranged at the edge of the port of the feeding bin 8. The opposing sides of the first clamping piece 1 and the second clamping piece 2 are provided with an anti-slip rubber layer. The anti-slip rubber layer can ensure that the first clamping piece 1 and the second clamping piece 2 effectively and stably clamp the edge of the port of the feeding bin 8. The feeding bin 8 is generally cylindrical with a funnel-shaped bottom. The first clamping piece 1 and the second clamping piece 2 can be configured to fit the curvature of the edge of the port of the feeding bin 8.

[0032] For the above example, those skilled in the art should know that when implementing the above technical solution, the feed bin 8 is the main part of the 3D printing bin-type feeding system, and the feed bin 8 is used to store raw materials for 3D printing.

[0033] For the above example, those skilled in the art should know that when implementing the above technical solution, a mixer is provided on the top of the feed bin 8, and the mixer is used to drive the stirring blades set inside it. The mixer and the feed bin 8 are both installed and fixed through the existing support frame, which will not be elaborated here.

[0034] As a technical optimization solution of the present invention, the mounting frame 4 has a side panel 9 at one end near the electric telescopic rod 3. The other end of the mounting frame 4 has an opening. The side panel 9 has a circular hole and a bolt 10. The telescopic end of the electric telescopic rod 3 has a coaxial threaded hole. The bolt 10 can pass through the circular hole in the side panel 9 and threadably mate with the threaded hole. The mounting frame 4 and the electric telescopic rod 3 are detachably fixedly connected.

[0035] As a technical optimization of the present invention, a rubber ring 11 is installed on the side of the side panel 9 facing away from the electric telescopic rod 3. Two protrusions 12 are installed on the side of the side panel 9 corresponding to the electric telescopic rod 3. The telescopic end of the electric telescopic rod 3 has recessed grooves that mate with the two protrusions 12. The rubber ring 11 acts as a buffer against the contact alarm body 5. The two protrusions 12 position the side panel 9, and thus the mounting frame 4, ensuring that the bolts 10 are effectively tightened and secured, and that the mounting frame 4 is positioned in a controlled manner.

[0036] As a technical optimization solution of the present invention, two bar blocks 13 are symmetrically fixed to the left side of the mounting frame 4, and two annular blocks 14 are symmetrically provided on the right side of the mounting frame 4. The two bar blocks 13 are aligned with the two annular blocks 14 respectively, and the bar blocks 13 can be plugged into and matched with the insides of the annular blocks 14. The upper bar block 13 and the annular block 14 are both provided with through holes, each of which can be threaded into a fastening screw. In other words, the side of the mounting frame 4 can be docked with another mounting frame 4 by plugging the bar blocks 13 of one mounting frame 4 into the annular blocks 14 of the other mounting frame 4 and threading the fastening screws into the aligned through holes.

[0037] As a technical optimization solution of the present invention, the four corners of the end of the mounting frame 4 near the side panel 9 are fixed with snap-fit ​​blocks 15. The four snap-fit ​​blocks 15 can be snap-fitted to the end of the mounting frame 4 facing away from the side panel 9, and can respectively snap-fit ​​with the two strip blocks 13 and the two annular blocks 14. In other words, the end of the mounting frame 4 can be docked with another mounting frame 4 by matching the four snap-fit ​​blocks 15 at one end of one mounting frame 4 to the end of the other mounting frame 4 and then inserting and snapping them together.

[0038] Multiple installation frames 4 can be provided, so in addition to installing the alarm body 5, other monitoring devices can also be installed. That is, multiple installation frames 4 can also be used to install multiple monitoring devices, such as additional temperature monitoring devices.

[0039] As a technical optimization solution of the present invention, an infrared sensor and a rangefinder are installed on the alarm body 5, that is, the alarm body 5 is a shell, and the infrared sensor and the rangefinder are fixed inside the shell.

[0040] For the above example, those skilled in the art should know that when implementing the above technical solution, the infrared sensor senses the specific position of the residual material through infrared rays, and the rangefinder monitors the distance to the raw material surface according to the reflection intensity of the infrared signal.

[0041] For the above example, those skilled in the art should know that when implementing the above technical solution, a data preset module, a data comparison module and an alarm module are also provided inside the alarm body 5. The data preset module is used to preset the safety distance parameter. The data comparison module is used to compare the real-time distance measured by the rangefinder with the preset safety distance parameter, and feed back the signal that the real-time distance is greater than or equal to the preset safety distance parameter to the alarm module. For example, the data preset module presets the safety distance parameter to 15 cm according to the actual depth of the feed bin 8. When the residual material is less than a certain level, the distance between the residual material surface and the rangefinder is compared with the preset safety distance parameter by the real-time distance measured by the rangefinder and the preset safety distance parameter and fed back to the alarm module, and the alarm module activates the alarm.

[0042] For the above example, those skilled in the art should know that when implementing the above technical solution, the sensor inside the alarm body 5 can feed back the data to the existing console after monitoring the data, so as to achieve the effect of conveying information to the staff, such as conveying alarm information. The signal of the alarm body 5 can be transmitted wirelessly or wired, depending on the equipment used.

[0043] In the present invention, the working principle of the device is as follows:

[0044] During use, precise telescopic control is performed through the electric telescopic rod 3, which can drive the installation frame 4 to change and move in different directions, that is, drive the corresponding alarm body 5 to perform measurement operations in different directions, that is, the distance measurement effect of the residual material is achieved through the infrared sensor and the rangefinder. The direction mainly includes the side wall position of the feed bin 8 and the middle position of the distance between the side wall and the center. Through mobile measurement and data feedback and calculation, it can effectively avoid false alarms caused by inaccurate distance measurement due to local over-high and local over-low phenomena caused by stirring of the agitator.

[0045] At the same time, before the device is installed, the side of the installation frame 4 can be connected to another installation frame 4, and the end of the installation frame 4 can also be connected to another installation frame 4, that is, the installation frame 4 can be flexibly set up in multiple quantities and multiple positions. In addition to installing the alarm body 5, other monitoring devices can also be installed. That is, multiple installation frames 4 can also be installed with multiple monitoring devices, such as additional temperature monitoring devices. The overall use is convenient, efficient, and flexible.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A material shortage alarm device for a 3D printing silo-type feeding system, comprising a first clamping piece (1) and a second clamping piece (2), characterized in that: The first clamping piece (1) and the second clamping piece (2) are arranged in alignment, and a spacing adjustment mechanism is provided between the first clamping piece (1) and the second clamping piece (2); an electric telescopic rod (3) is fixed to the top of the first clamping piece (1) through a bracket; the electric telescopic rod (3) is arranged horizontally, and the telescopic end of the electric telescopic rod (3) is connected to a mounting frame (4); An alarm body (5) is fixedly connected inside the installation frame (4), and an infrared sensor and a rangefinder are installed on the alarm body (5).

2. The material shortage alarm device of the 3D printing silo type feeding system according to claim 1, characterized in that: The spacing adjustment mechanism comprises a screw (6) and two polished rods (7), the two polished rods (7) are symmetrically fixedly arranged on the side of the second clamping piece (2), the screw (6) is located between the two polished rods (7) and is rotatably arranged on the second clamping piece (2), the screw (6) and the two polished rods (7) are all arranged horizontally, one end of the screw (6) is threaded through the first clamping piece (1), and the two polished rods (7) slide through the first clamping piece (1).

3. The material shortage alarm device of the 3D printing silo type feeding system according to claim 1, characterized in that: The first clamping piece (1) and the second clamping piece (2) are matched and arranged on the feeding bin (8); the first clamping piece (1) and the second clamping piece (2) are clamped and arranged at the edge of the port of the feeding bin (8); and the opposite sides of the first clamping piece (1) and the second clamping piece (2) are both provided with an anti-slip rubber layer.

4. The material shortage alarm device of the 3D printing silo type feeding system according to claim 1, characterized in that: The mounting frame (4) is provided with a side plate (9) at one end close to the electric telescopic rod (3), and an opening is provided at the other end of the mounting frame (4). The side plate (9) is provided with a circular hole and a bolt (10). The telescopic end of the electric telescopic rod (3) is coaxially provided with a threaded hole. The bolt (10) can pass through the circular hole of the side plate (9) and can be threadably matched with the threaded hole.

5. The material shortage alarm device of the 3D printing silo type feeding system according to claim 4, characterized in that: A rubber ring (11) is provided on the side of the side plate (9) facing away from the electric telescopic rod (3), two protrusions (12) are provided on the side of the side plate (9) corresponding to the electric telescopic rod (3), and a recessed groove that matches the two protrusions (12) is provided at the telescopic end of the electric telescopic rod (3).

6. The material shortage alarm device of the 3D printing silo type feeding system according to claim 5, characterized in that: Two strip blocks (13) are symmetrically fixed on the left side of the installation frame (4), and two annular blocks (14) are symmetrically provided on the right side of the installation frame (4). The two strip blocks (13) are aligned with the two annular blocks (14) respectively. The strip blocks (13) can be plugged and matched with the inside of the annular blocks (14). The strip blocks (13) and the annular blocks (14) located above are both provided with through holes, and the through holes can be threaded into fastening screws.

7. The material shortage alarm device of the 3D printing silo type feeding system according to claim 6, characterized in that: The four corners of the installation frame (4) at one end close to the side plate (9) are all fixed with a clamping block (15). The four clamping blocks (15) can be clamped and fixed with the end of the installation frame (4) away from the side plate (9), and can be clamped and matched with the two strip blocks (13) and the two annular blocks (14) respectively.

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