3D printing post-curing treatment cleaning solvent evaporation recovery equipment

Abstract

The utility model provides 3D printing post-curing treatment cleaning solvent evaporation recovery equipment which comprises a shell, a heating sleeve, a waste liquid container, a heating assembly, a condensation pipe and an upper cover, a connecting seat is placed on the shell, the heating sleeve wraps and sleeves the outside of the waste liquid container, and the heating sleeve and the waste liquid container directly form a hot liquid containing cavity. Heat conduction liquid is arranged in the hot liquid containing cavity, and the heating sleeve is placed in the shell. The heat conduction liquid is firstly heated, the bottom and the periphery of the waste liquid container are all provided with the heat conduction liquid, then the bottom and the periphery of the waste liquid container can be evenly heated, even if the bottom of the waste liquid container is formed, the recycling efficiency cannot be affected, waste liquid can be fully and evenly heated, and then the recycling efficiency and quality are improved; the solvent recovery device is simple and reasonable in structural design, convenient and rapid to use and very high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing solvent recovery, in particular to an evaporation recovery device for cleaning solvent after curing treatment of 3D printing. Background Technique

[0002] With the popularization of 3D printing technology, more and more people use the stereolithography 3D printing technology. After stereolithography 3D printing, it is necessary to use solvents to clean the residual resin, such as alcohol, ethyl acetate, isopropanol, water, etc. After several cleanings, the resin is dissolved in the solvent, and the cleaning ability of the solvent is greatly reduced and it cannot be used anymore. There are several current treatment methods. One is to pour it directly, which not only pollutes the environment but also wastes resources. The second is static separation and recovery, which is inefficient and wasteful. The third is electric heating condensation evaporation. For example, the Chinese utility model discloses an evaporation recovery device for the cleaning agent after 3D printing (CN202223149461.4). The applicant found in the experiment that when the electric heating unit heats the bottom of the evaporation container, impurities in the residues will form a bottom during the solvent evaporation process (such as Figure 1 and Figure 2 ), a thick layer of impurities solidifies on the inner bottom of the evaporation container, affecting heat absorption, affecting the evaporation efficiency, and may also cause the equipment to stop (the temperature of the electric heating unit is too high). At this time, it is necessary to clean the impurities, and frequent cleaning of the impurities will also affect the evaporation recovery efficiency. Therefore, the inventor designed a simple and efficient device for treatment and recovery. Content of the Utility Model

[0003] The purpose of the utility model is to provide an evaporation recovery device for cleaning solvent after curing treatment of 3D printing, which can overcome the problem that the bottom formation of impurities affects the recovery efficiency.

[0004] To achieve the above object, the utility model proposes the following technical solution: An evaporation recovery device for cleaning solvent after curing treatment of 3D printing, including a housing (1) and a waste liquid container (4), a connecting seat (2) is placed on the housing (1), and further includes:

[0005] A heating jacket (3), the heating jacket (3) is wrapped around the outside of the waste liquid container (4), the heating jacket (3) and the waste liquid container (4) directly form a hot liquid containing cavity (5), a heat conduction liquid is arranged in the hot liquid containing cavity (5), and the heating jacket (3) is placed inside the housing (1);

[0006] A heating component (6), the heating component (6) is arranged at the bottom of the heating jacket (3), and the heating component (6) is used to heat the heat conduction liquid in the heating jacket (3);

[0007] A condenser tube (8), the condenser tube (8) is communicated with a waste liquid container (4), a heat sink (9) is sleeved on the condenser tube (8), a solvent outlet tube (10) is communicated with the end of the condenser tube (8), and the solvent vapor in the waste liquid container (4) is condensed by the condenser tube (8) and discharged from the solvent outlet tube (10);

[0008] An upper cover (12), the upper cover (12) is arranged on the connecting seat (2), a fan (11) is arranged in the upper cover (12), and the fan (11) is used to cool the condenser tube (8) and the heat sink (9).

[0009] Further, in the present utility model, the heat-conducting liquid has a boiling point higher than that of the waste liquid and is a stable and harmless liquid. Preferably, the heat-conducting liquid is water.

[0010] Further, in the present utility model, the heating sleeve (3) is made of a high heat-conducting material.

[0011] Further, in the present utility model, an air outlet hole (7) is opened on the connecting seat, and the heat-conducting liquid accommodating cavity (5) is communicated with the air outlet hole (7).

[0012] Further, in the present utility model, the condenser tube (8) is spiral.

[0013] Further, in the present utility model, heat dissipation holes (13) are opened on the top and side of the upper cover (12).

[0014] Further, in the present utility model, a sensor assembly (14) is arranged in the waste liquid container (4), and the sensor assembly (14) includes a temperature sensor and a liquid level sensor.

[0015] Further, in the present utility model, the heating assembly (6) is an electric heating sheet.

[0016] Further, in the present utility model, a controller is further included, and the electric heating sheet, the fan (11), the temperature sensor and the liquid level sensor are all connected to the controller.

[0017] Advantageous effects, the technical solution of the present application has the following technical effects: In the present utility model, by first heating the heat-conducting liquid, the bottom and the surrounding of the waste liquid container are both provided with the heat-conducting liquid, so that the bottom and the surrounding of the waste liquid container can be heated evenly. Even if the bottom of the waste liquid container is caked, it will not affect the recovery efficiency, and the waste liquid can be fully heated and evenly heated, thereby improving the recovery efficiency and quality. Until the solvent is completely recovered, the impurities can be cleaned up. The structure design is simple and reasonable, the use is convenient and fast, and it has strong practicability.

[0018] It should be understood that all combinations of the foregoing concepts and additional concepts described in more detail below can be regarded as part of the utility model subject matter of the present disclosure as long as such concepts do not conflict with each other.

[0019] The foregoing and other aspects, embodiments, and features of the teachings of the present utility model can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present utility model, such as the features and / or beneficial effects of exemplary embodiments, will be apparent from the following description or learned through the practice of specific embodiments according to the teachings of the present utility model. Brief Description of the Drawings

[0020] The drawings are not intended to be drawn to scale. In the drawings, each identical or approximately identical component shown in each figure may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the present utility model will be described by way of example and with reference to the drawings, wherein:

[0021] Figure 1 Schematic diagram of the prior art.

[0022] Figure 2 Schematic diagram of the prior art.

[0023] Figure 3 Schematic diagram of the structure of the present utility model.

[0024] Figure 4 Exploded schematic diagram of the structure of the present utility model.

[0025] Figure 5 Perspective schematic diagram of the present utility model.

[0026] Figure 6 Partial structure schematic diagram of the present utility model.

[0027] In the figures, the meanings of the respective reference numerals are as follows: 1, housing; 2, connecting seat; 3, heating jacket; 4, waste liquid container; 5, hot liquid receiving cavity; 6, heating assembly; 7, air outlet; 8, condensing tube; 9, heat sink; 10, solvent outlet pipe; 11, fan; 12, upper cover; 13, heat dissipation hole; 14, sensor assembly. Detailed Embodiments

[0028] To better understand the technical content of the present utility model, specific embodiments are hereby given and described in conjunction with the accompanying drawings as follows. In the present disclosure, aspects of the present utility model are described with reference to the drawings, and many illustrative embodiments are shown in the drawings. The embodiments of the present disclosure do not necessarily define all aspects of the present utility model. It should be understood that the various concepts and embodiments introduced above, as well as those concepts and implementation manners described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed by the present utility model are not limited to any implementation manner. In addition, some aspects disclosed by the present utility model can be used alone, or in any suitable combination with other aspects disclosed by the present utility model.

[0029] As Figures 3-6 shown, a cleaning solvent evaporation recovery device for post-curing treatment after 3D printing includes a housing 1, a heating jacket 3, a waste liquid container 4, a heating component 6, a condenser tube 8, and an upper cover 12. A connecting seat 2 is placed on the housing 1. The heating jacket 3 is wrapped around the outside of the waste liquid container 4. The material of the heating jacket 3 is a high thermal conductivity material, such as aluminum or copper, etc. The material of the waste liquid container 4 is a thermal conductivity material or a thin plastic part, such as copper, aluminum, nylon bag. The heating jacket 3 and the waste liquid container 4 directly form a hot liquid containing cavity 5. A heat transfer liquid is provided in the hot liquid containing cavity 5. The heat transfer liquid is a stable and harmless liquid with a boiling point higher than that of the waste liquid. For example, if the waste liquid is ethanol, the heat transfer liquid is water. The boiling point of ethanol under standard atmospheric pressure is 78 degrees, and that of water is 100 degrees. In this embodiment, the heat transfer liquid is water. The heating jacket 3 is placed inside the housing 1.

[0030] The heating component 6 is arranged at the bottom of the heating jacket 3. The heating component 6 is an electric heating sheet, which is used to heat the water in the heating jacket 3. An air outlet hole 7 is provided on the connecting seat. The hot liquid containing cavity 5 is communicated with the air outlet hole 7, and the air outlet hole 7 facilitates smooth communication with the outside during heating.

[0031] The condenser tube 8 is communicated with the top of the waste liquid container 4. A liquid adding cover is provided at the top of the waste liquid container 4. The waste liquid is added into the waste liquid container 4 by opening the liquid adding cover. The condenser tube 8 is spiral-shaped, and the spiral shape is more conducive to improving the condensation efficiency. A heat sink 9 is sleeved on the condenser tube 8, and the heat sink 9 is conducive to improving the condensation efficiency. The end of the condenser tube 8 is communicated with a solvent outlet tube 10, and the solvent is discharged and collected through the solvent outlet tube 10, that is, the solvent vapor in the waste liquid container 4 is condensed by the condenser tube 8 and then discharged from the solvent outlet tube 10.

[0032] The upper cover 12 covers the connecting seat 2. A fan 11 is provided inside the upper cover 12, and the fan 11 is used to cool the condenser tube 8 and the heat sink 9. Heat dissipation holes 13 are provided at the top and side of the upper cover 12. The condenser tube 8 can be cooled through the fan 11 and the heat dissipation holes 13 to improve the condensation efficiency.

[0033] In this embodiment, it includes a controller and a sensor assembly 14. The sensor assembly 14 is arranged in the waste liquid container 4, and the sensor assembly 14 includes a temperature sensor and a liquid level sensor. The electric heating sheet, the fan 11, the temperature sensor and the liquid level sensor are all connected to the controller.

[0034] During use, open the upper cover 12 and the liquid adding cover at the top of the waste liquid container 4, add waste liquid into the waste liquid container 4, cover the liquid adding cover, and the controller starts the electric heating sheet to heat the heating sleeve 3, so that the water in the heating sleeve 3 boils. The boiling water heats the waste liquid container 4 evenly. The temperature sensor and the liquid level sensor can monitor the temperature and the liquid level. The solvent in the waste liquid container 4 is generally alcohol, ethyl acetate or isopropyl alcohol, and will evaporate into the condenser tube 8. The condenser tube 8 can be cooled by the fan 11 and the heat dissipation holes 13 to improve the condensation efficiency. The solvent is discharged and collected through the solvent outlet pipe 10. Even if the bottom of the waste liquid container bottoms out, it will not affect the recovery efficiency. The waste liquid can be fully heated and evenly heated, thereby improving the recovery efficiency and quality. Until the solvent is completely recovered, then clean the impurities. There is no need to clean the heating sleeve, only need to clean the waste liquid container and pour out the waste residue. If a thin plastic part (nylon bag) is used, only need to replace the nylon bag. The structural design is simple and reasonable, the use is convenient and fast, and it has strong practicability.

[0035] The standard parts used in this application document can all be purchased from the market, and can also be customized according to the records of the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by the controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in this field. And this application document is mainly used to protect the mechanical device, so the control method and the circuit connection are not explained in detail in this application document.

[0036] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Those with ordinary knowledge in the technical field to which the present utility model belongs can make various modifications and refinements without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to what is defined by the claims.

Claims

1. A 3D printing post-curing treatment cleaning solvent evaporation recovery device, comprising a housing (1) and a waste liquid container (4), wherein a connecting seat (2) is placed on the housing (1), and the characteristics are: Also includes: A heating sleeve (3), the heating sleeve (3) being wrapped around the outside of the waste liquid container (4), the heating sleeve (3) and the waste liquid container (4) directly forming a hot liquid containing chamber (5), a heat transfer liquid being arranged in the hot liquid containing chamber (5), and the heating sleeve (3) being placed inside the housing (1); A heating component (6), wherein the heating component (6) is arranged at the bottom of the heating sleeve (3), and the heating component (6) is used to heat the heat transfer liquid in the heating sleeve (3); A condenser (8), the condenser (8) being connected to the waste liquid container (4), a heat sink (9) being sleeved on the condenser (8), an end of the condenser (8) being connected to a solvent outlet pipe (10), and the solvent vapor in the waste liquid container (4) being condensed through the condenser (8) and then discharged from the solvent outlet pipe (10); An upper cover (12), wherein the upper cover (12) is arranged on the connecting seat (2), and a fan (11) is arranged inside the upper cover (12), and the fan (11) is used to cool the condenser (8) and the heat sink (9).

2. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: The boiling point of the heat transfer fluid is higher than that of the waste liquid.

3. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: The material of the heating sleeve (3) is a high thermal conductivity material.

4. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: An air outlet hole (7) is provided on the connection seat, and the hot liquid containing cavity (5) is in communication with the air outlet hole (7).

5. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: The condenser (8) is spiral-shaped.

6. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: The top and side surfaces of the upper cover (12) are both provided with heat dissipation holes (13).

7. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 1, characterized in that: A sensor assembly (14) is arranged in the waste liquid container (4), and the sensor assembly (14) comprises a temperature sensor and a liquid level sensor.

8. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 7, characterized in that: The heating component (6) is an electric heating plate.

9. The 3D printing post-curing treatment cleaning solvent evaporation recovery device according to claim 8, characterized in that: It also comprises a controller, and the electric heating plate, the fan (11), the temperature sensor and the liquid level sensor are all connected to the controller.

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