Automatic liquid supplementing device for SLA type 3D printer

Abstract

The invention belongs to the field of SLA type 3D printers, and particularly relates to an automatic liquid supplementing device for an SLA type 3D printer, the automatic liquid supplementing device comprises a liquid storage device, the liquid storage device comprises a liquid storage cavity and a plurality of liquid supplementing cavities arranged on one side of the liquid storage cavity, and liquid supplementing pipes are inserted in the liquid storage cavity and the liquid supplementing cavities. According to the automatic liquid supplementing device for the SLA type 3D printer, a pressure sensor and a supporting spring are arranged at the bottom of the liquid storage device to form weighing measurement, when the liquid amount in the liquid storage device is lower than a limit value, the liquid storage device is jacked upwards through restoring force of the supporting spring, so that the value of the pressure sensor is decreased, and when the measured value of the pressure sensor is zero, the liquid storage device is automatically replenished. According to the SLA type 3D printer, the liquid storage device is completely separated from the supporting base, the liquid level sensor has the function of supplementing and monitoring the liquid amount in the liquid storage cavity, liquid supplementing is conducted in the liquid storage cavity through the liquid supplementing pipe, meanwhile, the communicating pipe can also supplement liquid in the liquid storage cavity in time, the automatic liquid supplementing timeliness of the SLA type 3D printer is improved, and the using effect is better.

Description

Technical Field

[0001] The invention relates to the field of SLA type 3D printers, in particular to an automatic liquid replenishing device for SLA type 3D printers. Background Art

[0002] 3D printing (3DP) is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer.

[0003] At present, during the refilling process of SLA type 3D printers, monitoring refilling is generally adopted, and the refilling is automatically performed when the ink is consumed to a certain amount. However, during the refilling process, the refilling is prone to be untimely, resulting in poor refilling effect.

[0004] Therefore, in view of the above problems, an automatic liquid replenishing device for an SLA type 3D printer is proposed. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and solve the problem that the current SLA type 3D printer generally adopts monitoring replenishment during the replenishment process, and automatically replenishes the ink when the ink is consumed to a certain amount, but the replenishment is not timely, resulting in poor replenishment effect, the present invention proposes an automatic replenishment device for an SLA type 3D printer.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the automatic liquid replenishing device for an SLA type 3D printer described in the present invention includes a liquid reservoir, the liquid reservoir includes a liquid storage cavity, and a plurality of liquid replenishing cavities are arranged on one side of the liquid storage cavity, the liquid storage cavity and the liquid replenishing cavity are both interspersed with liquid replenishing tubes, the liquid replenishing tubes are connected to the liquid replenishing tank, the liquid storage cavity is provided with a liquid outlet tube, and a connecting tube is arranged between the liquid storage cavity and the liquid replenishing cavity.

[0007] Preferably, the liquid storage cavity and the liquid replenishment cavity are respectively provided with liquid level sensors for monitoring the liquid level height. The independently arranged liquid level sensors can respectively monitor the amount of liquid inside the liquid storage cavity and the liquid replenishment cavity. When the amount of ink in the liquid storage cavity is insufficient, the liquid replenishment cavity can be replenished in time.

[0008] Preferably, a base is provided on the lower side of the liquid reservoir, and a support spring is provided between the base and the liquid reservoir, a support seat is provided on the upper surface of the base between the support springs, and a pressure sensor is provided on the support seat on a side surface close to the liquid reservoir. The support spring can make the liquid reservoir rise when the liquid volume is insufficient, so that the liquid reservoir can be separated from the support seat, which is convenient for the pressure sensor to monitor the weighing of the liquid reservoir.

[0009] Preferably, a limit seat is provided on the side wall of the liquid reservoir, and a slide groove connected to the limit seat is provided on the base. The limit seat and the slide groove limit the up and down movement of the liquid reservoir to ensure the stability of the structure.

[0010] Preferably, the liquid infusion tube is provided with liquid outlets in the liquid storage cavity and the liquid infusion cavity, and the aperture of the liquid outlet of the liquid infusion tube in the liquid storage cavity is at least twice that of the liquid infusion cavity. The liquid infusion tube mainly replenishes the ink inside the liquid infusion tank into the liquid storage cavity, and at the same time, part of the liquid is added into the liquid infusion cavity. The liquid infusion cavity plays a role of replenishing the liquid when the amount of liquid in the liquid storage cavity is insufficient.

[0011] Preferably, the bottom plate of the fluid infusion cavity is inclined toward one side of the fluid storage cavity, and the connection between the fluid infusion tube and the fluid storage cavity is sealed. An infusion pump is installed on the fluid infusion tube, and the infusion pump can quickly circulate the liquid inside the fluid infusion tank through the fluid infusion tube to improve the replenishment efficiency.

[0012] Preferably, the connecting pipe is provided with an electric-controlled valve, which can be opened according to the demand for liquid replenishment, so as to replenish the liquid storage cavity.

[0013] Preferably, a control panel is provided on the outer wall of the liquid reservoir, and the control panel is electrically connected to the liquid level sensor, pressure sensor, infusion pump and electric control valve. The control panel can replenish the liquid in the liquid storage cavity according to the detection of the pressure sensor and the liquid level sensor. The control panel flexibly controls the infusion pump and the electric control valve to ensure timely liquid replenishment.

[0014] The present invention is beneficial in that:

[0015] The present invention forms weighing measurement by arranging a pressure sensor and a supporting spring at the bottom of the liquid reservoir. When the liquid volume inside the liquid reservoir is lower than a limited value, the restoring force of the supporting spring pushes the liquid reservoir upward, thereby causing the pressure sensor value to decrease. When the measured value of the pressure sensor is zero, the liquid reservoir is completely separated from the supporting seat. The liquid level sensor plays a function of supplementary monitoring of the liquid volume inside the liquid storage cavity. The liquid storage cavity is replenished with liquid through the liquid replenishing tube. At the same time, the connecting tube can also replenish the liquid inside the liquid storage cavity in time, thereby improving the timeliness of automatic liquid replenishment of the SLA type 3D printer and achieving better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1It is a schematic diagram of the overall structure of the embodiment;

[0018] Figure 2 A schematic diagram of the control panel connection structure of an embodiment;

[0019] Figure 3 Schematic diagram of the liquid outlet structure of the embodiment.

[0020] In the figure: 1. Liquid reservoir; 2. Liquid storage cavity; 3. Liquid replenishment cavity; 4. Liquid replenishment tube; 5. Liquid replenishment tank; 6. Liquid outlet pipe; 7. Liquid level sensor; 8. Base; 9. Support spring; 10. Support seat; 11. Pressure sensor; 12. Limit seat; 13. Slide; 14. Liquid outlet; 15. Infusion pump; 16. Control panel; 17. Connecting pipe; 18. Electric control valve. DETAILED DESCRIPTION

[0021] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-3 As shown, an automatic liquid replenishing device for an SLA type 3D printer includes a liquid reservoir 1, the liquid reservoir 1 includes a liquid storage cavity 2, and a plurality of liquid replenishing cavities 3 are arranged on one side of the liquid storage cavity 2, liquid replenishing tubes 4 are inserted in both the liquid storage cavity 2 and the liquid replenishing cavity 3, the liquid replenishing tube 4 is connected to the liquid replenishing tank 5, a liquid outlet pipe 6 is arranged on the liquid storage cavity 2, and a connecting pipe 17 is arranged between the liquid storage cavity 2 and the liquid replenishing cavity 3.

[0023] In this embodiment, liquid level sensors 7 for monitoring the liquid level height are respectively arranged in the liquid storage cavity 2 and the liquid replenishment cavity 3. The independently arranged liquid level sensors 7 can respectively monitor the amount of liquid inside the liquid storage cavity 2 and the liquid replenishment cavity 3. When the amount of ink in the liquid storage cavity 2 is insufficient, the liquid replenishment cavity 3 can be replenished in time.

[0024] In this embodiment, a base 8 is provided on the lower side of the liquid reservoir 1, and a support spring 9 is provided between the base 8 and the liquid reservoir 1. A support seat 10 is provided on the upper surface of the base 8 between the support springs 9. A pressure sensor 11 is provided on the side surface of the support seat 10 close to the liquid reservoir 1. The support spring 9 can make the liquid reservoir 1 rise when the liquid amount is insufficient, so that the liquid reservoir 1 is separated from the support seat 10, which is convenient for the pressure sensor 11 to weigh and monitor the liquid reservoir 1.

[0025] In this embodiment, a limit seat 12 is provided on the side wall of the liquid reservoir 1, and a slide groove 13 connected to the limit seat 12 is provided on the base 8. The limit seat 12 and the slide groove 13 limit the up and down movement of the liquid reservoir 1 to ensure structural stability.

[0026] In this embodiment, the liquid infusion tube 4 is provided with liquid outlets 14 in the liquid storage cavity 2 and the liquid infusion cavity 3. The aperture of the liquid outlet 14 of the liquid infusion tube 4 in the liquid storage cavity 2 is at least twice that of the liquid infusion cavity 3. The liquid infusion tube 4 replenishes liquid mainly by adding the ink inside the liquid infusion tank 5 into the liquid storage cavity 2, and at the same time, part of the liquid is added into the liquid infusion cavity 3. The liquid infusion cavity 3 plays a role of replenishing the liquid when the amount of liquid in the liquid storage cavity 2 is insufficient.

[0027] In this embodiment, the bottom plate of the fluid infusion cavity 3 is inclined toward the side of the fluid storage cavity 2, and the fluid infusion tube 4 is sealed at the connection between the fluid infusion cavity 3 and the fluid storage cavity 2. An infusion pump 15 is installed on the fluid infusion tube 4. The infusion pump 15 can quickly circulate the liquid inside the fluid infusion tank 5 through the fluid infusion tube 4, thereby improving the replenishment efficiency.

[0028] In this embodiment, an electrically controlled valve 18 is provided on the connecting pipe 17 , and the electrically controlled valve 18 can be opened according to the demand for liquid replenishment, so as to replenish the liquid storage cavity 2 .

[0029] In this embodiment, a control panel 16 is provided on the outer wall of the liquid reservoir 1. The control panel 16 is electrically connected to the liquid level sensor 7, the pressure sensor 11, the infusion pump 15 and the electric control valve 18. The control panel 16 can replenish the liquid in the liquid storage cavity 2 according to the detection of the pressure sensor 7 and the liquid level sensor 11. The control panel 16 flexibly controls the infusion pump 15 and the electric control valve 18 to ensure the timeliness of liquid replenishment.

[0030] In summary, the automatic liquid replenishing device for the SLA type 3D printer forms a weighing measurement by arranging a pressure sensor 11 and a support spring 9 at the bottom of the liquid reservoir 1. When the liquid volume inside the liquid reservoir 1 is lower than the limited value, the restoring force of the support spring 9 pushes the liquid reservoir 1 upward, thereby causing the value of the pressure sensor 11 to decrease. When the measured value of the pressure sensor 11 is zero, the liquid reservoir 1 is completely separated from the support seat 10, and the liquid level sensor 7 plays a supplementary monitoring function for the liquid volume inside the liquid storage cavity 2. The liquid storage cavity 2 is replenished through the liquid replenishing tube 4. At the same time, the connecting tube 17 can also replenish the liquid inside the liquid storage cavity 2 in time, thereby improving the timeliness of the automatic liquid replenishment of the SLA type 3D printer and achieving a better use effect.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An automatic liquid replenishing device for an SLA type 3D printer, comprising a liquid reservoir, characterized in that: The liquid reservoir includes a liquid storage cavity, and a plurality of liquid infusion cavities are arranged on one side of the liquid storage cavity, and liquid infusion tubes are inserted in the liquid storage cavity and the liquid infusion cavity, and the liquid infusion tubes are connected to the liquid infusion tank, and a liquid outlet tube is arranged on the liquid storage cavity, and a connecting tube is arranged between the liquid storage cavity and the liquid infusion cavity.

2. The automatic liquid replenishing device for a SLA type 3D printer according to claim 1, characterized in that: The liquid storage cavity and the liquid replenishment cavity are respectively provided with liquid level sensors for monitoring the liquid level height.

3. The automatic liquid replenishing device for a SLA type 3D printer according to claim 1, characterized in that: A base is arranged at the lower side of the liquid reservoir, and a support spring is arranged between the base and the liquid reservoir. A support seat is arranged between the support springs on the upper surface of the base, and a pressure sensor is arranged on a side surface of the support seat close to the liquid reservoir.

4. The automatic liquid replenishing device for a SLA type 3D printer according to claim 3, characterized in that: A limit seat is arranged on the side wall of the liquid storage container, and a slide groove connected with the limit seat is arranged on the base.

5. The automatic liquid replenishing device for a SLA type 3D printer according to claim 1, characterized in that: The infusion tube is provided with liquid outlets distributed in the liquid storage cavity and the liquid infusion cavity, and the aperture of the liquid outlet of the infusion tube in the liquid storage cavity is at least twice that of the liquid infusion cavity.

6. The automatic liquid replenishing device for a SLA type 3D printer according to claim 1, characterized in that: The bottom plate of the fluid infusion cavity is inclined toward one side of the fluid storage cavity, and the connection between the fluid infusion tube, the fluid infusion cavity and the fluid storage cavity is sealed, and an infusion pump is installed on the fluid infusion tube.

7. The automatic liquid replenishing device for a SLA type 3D printer according to claim 1, characterized in that: The connecting pipe is provided with an electric control valve.

8. An automatic liquid replenishing device for a SLA type 3D printer according to any one of claims 1 to 7, characterized in that: A control panel is arranged on the outer wall of the liquid reservoir, and the control panel is electrically connected to the liquid level sensor, the pressure sensor, the infusion pump and the electric control valve.

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