WO2021036240A1

WO2021036240A1 - Material storage container for 3d ink-jet printing and 3d ink-jet printing device

Info

Publication number: WO2021036240A1
Application number: PCT/CN2020/080883
Authority: WO
Inventors: 马达荣
Original assignee: 珠海赛纳三维科技有限公司
Priority date: 2019-08-28
Filing date: 2020-03-24
Publication date: 2021-03-04
Also published as: CN210792089U

Abstract

The present application relates to the technical field of 3D printing devices, and in particular to a material storage container for 3D ink-jet printing and a 3D ink-jet printing device. The material storage container for 3D ink-jet printing comprises a shell, a chamber, a material supply opening, a waste material collection opening and a gas channel, wherein when the material storage container is used for supplying materials, the waste material collection opening is located above the material supply opening; and when the material storage container is used for collecting waste materials, the waste material collection opening is located below the material supply opening. The material storage container provided in the present application comprises the waste material collection opening and the material supply opening, and through the relative positions of the waste material collection opening and the material supply opening, the material storage container can serve as either a material supply container or a waste material collection container, so as to prolong the service life of the material storage container and reduce the usage cost for a user and the amount of pollution created in the environment.

Description

Material storage container for 3D inkjet printing and 3D inkjet printing device

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 28, 2019, the application number is 201921410967.1, the application name is "3D inkjet printing material storage container and 3D inkjet printing device", and its entire content Incorporated in this application by cross-reference.

Technical field

This application relates to the technical field of 3D printing devices, and in particular to a material storage container for 3D inkjet printing and a 3D inkjet printing device.

Background technique

In the existing 3D inkjet printing technology, the 3D inkjet printing device includes at least one material supply container. During the inkjet printing process, the material supply container continuously supplies liquid materials (such as ink) to the inkjet print head, so that the inkjet print head Perform inkjet printing to form a material layer. The material in the material supply container needs to be replaced when it is used up or there is a small amount of residual material. Some of the replaced material supply container is directly discarded as solid waste, and some are recycled by recycling manufacturers. Use it again later.

In addition, because the 3D inkjet printing process usually needs to level the material layer in order to improve the accuracy of forming the material layer, the excess material taken away during the leveling process is used as waste; at the same time, the print head nozzle hole in the 3D inkjet printing process It also needs to be cleaned regularly, and waste is also generated during the cleaning process. Therefore, the 3D inkjet printing device also includes at least one waste collection container.

In the prior art, when the waste collection container is filled with waste materials and is treated as solid waste after secondary treatment, the user needs to replace the waste collection container with a new one. As a result, on the one hand, the cost of using 3D inkjet printers for users is increased, and on the other hand, the residual liquid materials in the material supply container or the solid garbage and waste water generated during the recycling process cause certain pollution to the environment.

Therefore, there is an urgent need for a 3D inkjet printing material storage container and a 3D inkjet printing device to solve the above-mentioned problems.

Application content

The present application provides a material storage container for 3D inkjet printing and a 3D inkjet printing device, so that the material storage container can play the role of material supply and waste collection.

The first aspect of the present application provides a material storage container for 3D inkjet printing, including a housing provided with a cavity located inside the housing and a material supply port communicating with the cavity, respectively , The waste collection port and the gas channel, the cavity is used to contain the liquid material;

The gas channel is used to guide gas into the cavity so that the liquid material is discharged from the material supply port, or the gas channel is used to guide the gas in the cavity to discharge, so that the liquid material is discharged from the cavity. The waste collection port enters the cavity;

When the material storage container is used to supply materials, the waste collection port is located above the material supply port;

When the material storage container is used to collect waste, the waste collection port is located below the material supply port.

In a possible design, a first air hole and a second air hole are respectively provided at both ends of the gas channel;

The first air hole communicates with the outside, the second air hole is arranged inside the cavity and in the vertical direction (Z), and the second air hole is located at the material supply port and the waste collection port between.

In a possible design, the gas channel includes:

The first gas channel is in communication with the first gas hole;

A second gas passage, respectively communicating with the first gas passage and the second gas hole;

Along the horizontal direction (X), the size of the first gas passage is smaller than the size of the second gas passage.

In a possible design, a baffle is provided in the second gas channel, and the baffle extends from the inner wall of the housing into the cavity;

The baffle is provided with a through hole or a through hole is formed between the baffle and the second gas channel.

In a possible design, ribs extend from the inner wall of the housing, and the ribs divide the cavity into mutually connected compartments;

The material supply port and the waste collection port are respectively located in the same compartment or in different compartments.

In a possible design, at least one liquid level detection component is further included, and the liquid level detection component is used to obtain liquid level information in the cavity.

In a possible design, the material supply port and the waste collection port are respectively located in the same compartment, and the liquid level detection component is one and can move in a direction away from the material supply port.

In a possible design, the material supply port and the waste collection port are respectively located in different compartments, and there are two liquid level detection components;

When the material storage container is used to supply materials, one of the liquid level detection components is located above the waste collection port, and the other liquid level detection component is located between the material supply port and the waste collection port between.

In a possible design, the waste collection port is provided with a sealing member.

In a possible design, the sealing component includes at least one of a sealing plug and a sealing film.

The second aspect of the present application also provides a 3D inkjet printing device, including a first ink tank, a second ink tank, and at least two 3D inkjet printing material storage containers as described above, wherein at least one of the materials A storage container is housed in the first ink tank, and at least one material storage container is housed in the second ink tank;

The material storage container accommodated in the first ink tank is used for supplying materials, and the material storage container accommodated in the second ink tank is used for collecting waste materials.

In a possible design, a sensor is further included, and the sensor is respectively arranged in the first ink tank and the second ink tank, and the sensor is used to detect liquid level information.

In a possible design, a controller is further included, and the sensor is used to feed back the liquid level information to the controller.

The technical solution provided by this application can achieve the following beneficial effects:

The material storage container for 3D inkjet printing provided by this application includes a waste collection port and a material supply port. By using the relative positions of the waste collection port and the material supply port, the material storage container can be used as a material supply container or as a waste material. The collection container prolongs the life cycle of the material storage container and reduces the user's use cost and environmental pollution.

It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the application.

Description of the drawings

FIG. 1 is a schematic structural diagram of a material storage container for 3D inkjet printing according to Embodiment 1 of the application;

Fig. 2 is an enlarged schematic diagram of A in Fig. 1;

3 is a schematic diagram of the structure of a material storage container for 3D inkjet printing provided in the second embodiment of the application;

4 is a schematic structural diagram of a 3D inkjet printing device including the material storage container shown in FIG. 1;

FIG. 5 is a schematic structural diagram of a 3D inkjet printing device including the material storage container shown in FIG. 3.

detailed description

In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

In the description of this application, unless expressly stipulated and limited otherwise, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; unless otherwise stipulated or stated The term "multiple" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral Connection, or electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

In the description of this specification, it should be understood that the terminology such as “upper” and “lower” described in the embodiments of the present application are described from the angle shown in the drawings, and should not be construed as referring to the embodiments of the present application. limited. In addition, in the context, it should also be understood that when it is mentioned that an element is connected "on" or "under" another element, it can not only be directly connected "on" or "under" the other element, but also It is indirectly connected "on" or "under" another element through an intermediate element.

Example one

Fig. 1 is a material storage container for 3D inkjet printing provided in the first embodiment of the application. The material storage container includes a housing 1. The housing 1 is provided with a cavity 10 located inside the housing 1 and communicating with the cavity 10 respectively. The material supply port 20, the waste collection port 30 and the gas channel 40. The cavity 10 is used to contain liquid material (for example, ink); the gas channel 40 is used to guide gas into the cavity 10 so that the liquid material is supplied from the material. The port 20 is discharged, or the gas channel is used to guide the gas in the cavity to discharge, so that the liquid material enters the cavity 10 from the waste collection port 30.

When the material storage container is used to supply materials, the waste collection port 30 is located above the material supply port 20; when the material storage container is used to collect waste, the waste collection port 30 is located below the material supply port 20. The material storage container for 3D inkjet printing provided in this application includes a material supply port 20 and a waste collection port 30. By using the relative positions of the waste collection port 30 and the material supply port 20, the material storage container can be used as a material supply container. It can also be used as a waste collection container, thereby prolonging the use period of the material storage container, reducing the user's use cost and environmental pollution.

In some embodiments, the two ends of the gas channel 40 are respectively provided with a first gas hole 41 and a second gas hole 42. The first gas hole 41 is in communication with the outside, and the second gas hole 42 is arranged inside the cavity 10 and along the vertical direction. On (Z), the second air hole 42 is located between the material supply port 20 and the waste collection port 30. When the material storage container is used to supply materials, the print head 82 is supplied with liquid material through the material supply port 20 (wherein, the flow direction of the liquid material is shown by the solid arrow of the material storage container in the first ink tank 21 in FIG. 4 and FIG. 5). As shown), as the liquid material in the cavity 10 decreases, the air pressure on the surface of the liquid material in the cavity 10 decreases. The outside air enters the gas channel 40 through the first air hole 41 and then enters the cavity 10 through the second air hole 42. To ensure that the air pressure on the surface of the liquid material is stable to maintain the material storage container to stably supply ink to the print head 82; when the material storage container is used to collect waste, the waste ink generated during the printing process is collected into the cavity 10 through the waste collection port 30 As the internal space of the cavity 10 decreases, the gas pressure inside the cavity 10 increases. The internal gas enters the gas channel 40 through the second air hole 42 and then is discharged into the surrounding environment through the first air hole 41 (wherein, the flow direction of the gas As shown by the hollow arrow of the material storage container in the second ink tank 22 in FIG. 4 and FIG. 5 ), to maintain the stability of the air pressure inside the cavity 10 so that the waste ink can be collected into the cavity 10 smoothly.

The material storage container provided in this application can be used as both a material supply container and a waste collection container, especially when the material supply container no longer supplies ink to the print head 82, it can be used as a waste collection container for secondary use, thereby The use period of the material supply container is prolonged, the user's use cost is reduced, and the pollution to the environment is also reduced. At the same time, the user uses the material supply container as a waste collection container and the installation and operation are simple.

In some embodiments, the material supply port 20 may be located on the bottom of the housing 1 or on the side wall of the housing 1. In some implementations, it is located on the side wall of the housing 1 and close to the bottom, so that it can be lowered. The natural ink dripping phenomenon of the material supply port 20 in the case of abnormal ink supply.

The second air hole 42 is located between the material supply port 20 and the waste collection port 30. In this way, when the material storage container is used as a waste collection container, the inner space of the cavity 10 can be utilized to the maximum, thereby collecting more waste ink.

In some embodiments, the gas passage 40 includes a first gas passage 401 and a second gas passage 402. The first gas passage 401 is in communication with the first gas hole 41, and the second gas passage 402 is respectively connected to the first gas passage 401 and the second gas hole. 42 is connected; along the horizontal direction (X), the size of the first gas passage 401 is smaller than the size of the second gas passage 402. Wherein, the gas channel 40 can be arranged on multiple walls of the housing 1. As shown in FIG. 1, the gas channel 40 is arranged on both side walls and a top wall of the housing 1. When the material storage container is used for supplying materials , The first air hole 41 is arranged above the housing 1, and the second air hole 42 is arranged below the housing 1. In this case, the size of the gas channel 40 along the horizontal direction (X) is designed to be narrow at the top and wide at the bottom, forming a buffer zone in a wide area, which can prevent large changes in the pressure in the cavity 10 when the cavity 10 The liquid material inside flows out from the first air hole 41 along the gas channel 40 or the liquid material enters the first gas channel 401 and is blocked, thereby affecting the normal feeding of the material supply container.

In some embodiments, a baffle 12 is provided in the second gas passage 402, and the baffle 12 extends from the inner wall of the housing 1 into the cavity 10; a through hole 121 is formed between the baffle 12 and the second gas passage 402, This can further prevent the liquid material in the cavity 10 from flowing out of the first air hole 41 along the gas channel 40 or the liquid material from entering the first gas channel 401 when the air pressure in the cavity 10 changes greatly or when the material storage container is placed on its side. Blockage occurs, which affects the normal feeding of the material supply container.

In some embodiments, the inner wall of the housing 1 is extended with ribs 11, which divide the cavity 10 into compartments 101 communicating with each other, and the material supply port 20 and the waste collection port 30 are respectively located in different compartments 101 For example, the cavity 10 of the material storage container shown in FIG. 1 is divided into a plurality of compartments 101 by ribs 11, for example, two compartments 101, the material supply port 20 is located in one of the compartments 101, and the waste collection port 30 is located in another compartment 101. Designing the ribs 11 in the cavity 10 can enhance the overall structural strength of the material storage container on the one hand, and on the other hand can be used to guide the flow direction of the liquid material in the cavity 10. In addition, the ribs 11 form a barrier structure in front of the material supply port 20, and the liquid material flow channel formed by the ribs 11 guides the liquid material into the compartment 101 where the material supply port 20 is located, so as to prevent the gas channel 40 from entering the cavity. The pressure wave generated by the gas in the body 10 interferes with the ink supply flow rate of the material supply port 20, so that the ink supply flow rate of the material supply port 20 is maintained stable, and the print head 82 can continuously eject ink.

In some embodiments, the material storage container further includes at least one liquid level detection component, and the liquid level detection component is used to obtain liquid level information in the cavity 10, so as to obtain the time to prepare to replace the new material or to replace the new waste collection. The time of the container.

In some embodiments, the material storage container provided in Example 1 has two liquid level detection components, such as the first liquid level detection component 51 and the second liquid level detection component 52 as shown in FIG. 1; The position detecting component 51 is located in the first moving area 102, and the second liquid level detecting component 52 is located in the second moving area 103. Optionally, both the first moving area 102 and the second moving area 103 can be formed by the ribs 11. Along the height direction (Z), the length of the first moving area 102 is greater than the length of the second moving area 103, so that the detection range of the first liquid level detecting component 51 can be larger, so as to facilitate the information of the liquid level in the cavity 10 More comprehensive testing. When the material storage container is used to supply materials, one of the liquid level detection components (ie, the first liquid level detection component 51) is located above the waste collection port 30 and moves up and down in the first movement area 102 as the liquid level rises and falls. The other liquid level detection component (ie, the second liquid level detection component 52) is located between the material supply port 20 and the waste collection port 30 and moves up and down in the second movement area 103 as the liquid level rises and falls.

The liquid level detection part provided in this application can select one of metal balls, metal sheets, and metal films with metal materials, and there is no specific restriction on it. For example, taking a metal sheet as an example, the metal sheet can float or suspend on the surface of the liquid material, and move up and down as the liquid level of the liquid material in the cavity 10 changes. When the metal piece moves to the horizontal position where the sensor set in the first ink tank 21 and/or the second ink tank 22 (see Figures 4 and 5) is located, the sensor communicates with the metal piece so that it can feed back to the material storage container Material level information, such as remaining amount information or storage amount information of the material.

In some embodiments, please refer to FIG. 2. FIG. 2 is an enlarged schematic view at A in FIG. 1. The waste collection port 30 is provided with a sealing member 301. When the material storage container is used as a material supply container, the sealing member 301 will open the waste collection port 30 is sealed to prevent the liquid material in the cavity 10 from flowing out of the waste collection port 30. The sealing component 301 includes but is not limited to at least one of a sealing plug and a sealing film. For example, the waste collection port 30 in the first embodiment is provided with a sealing plug (such as a rubber plug), and its shape can be conical, cylindrical or round. Taiwan shape and so on. When the material storage container is used as a material supply container, the waste collection port 30 is sealed by the sealing member 301 so that the liquid material in the cavity 10 does not flow out of the waste collection port 30; when the material storage container is used as a waste collection container, it can The sealing member 301 is removed, and the second transfer tube 92 (see FIG. 5) is inserted into the cavity 10 from the waste collection port 30, thereby introducing the collected waste ink into the cavity 10 for collection; or An ink needle 93 (see FIG. 4) is provided on the bin 22. One end of the ink needle 93 is connected to the second transfer tube 92, and the other end is directly inserted into the sealing member 301 (that is, the sealing plug), so as to pass the waste ink through the second transfer tube 92 , The ink needle 93 enters the cavity 10.

Example two

FIG. 3 is a schematic diagram of the structure of the 3D inkjet printing material storage container provided in the second embodiment of the application. The difference between the second embodiment and the first embodiment is that the gas channel 40 in the second embodiment is provided on a side wall of the housing 1 , The through hole 121 on the baffle 12 in the gas channel 40 is located at the non-sidewall position of the baffle 12; the material supply port 20 and the waste collection port 30 are respectively located in the same compartment 101, which can be used to limit the liquid level The moving area of the detection component, the liquid level detection component (ie, the third liquid level detection component 53 shown in FIG. 3) is one, and it can move in a direction away from the material supply port 20. The third liquid level in the second embodiment The function and working principle of the detection component 53 are the same as those of the first liquid level detection component 51 and the second liquid level detection component 52 in the first embodiment, and will not be repeated here; when the material storage container in the second embodiment is used for supplying materials, The waste collection port 30 is sealed with a sealing film. When the material storage container is used for waste collection, the sealing film can be directly removed, and then the second transfer tube 92 is inserted into the cavity 10 from the waste collection port 30 (see FIG. 5) , So as to introduce the collected waste ink into the cavity 10 for collection.

The specific structure of the material storage container in this application can also be various combinations of the possible structures listed above, which are not listed here. This application also provides a 3D printing device, which includes the material storage container for 3D inkjet printing provided in the first embodiment and/or the second embodiment above. By using the above-mentioned material storage container, the printing device provided in this application It also prolongs the life cycle of the material storage container, reduces the user's use cost and pollution to the environment.

Please refer to FIG. 4, which is a schematic structural diagram of a 3D inkjet printing device including the material storage container shown in FIG. 1. The printing device includes a first ink tank 21, a second ink tank 22 and the two provided in the first embodiment Material storage containers, each material storage container is respectively accommodated in the first ink tank 21 and the second ink tank 22; the material storage container accommodated in the first ink tank 21 is used for supplying materials, and is accommodated in the second ink tank 22 The material storage container is used to collect waste. It can also be said that the installation direction of the material storage container in the first ink tank 21 and the second ink tank 22 is relatively inverted, so that the material storage container installed in the first ink tank 21 can collect waste The port 30 is located above the material supply port 20, and the material storage container waste collection port 30 installed in the second ink tank 22 is located below the material supply port. It can be understood that the number of material storage containers contained in the first ink tank 21 and the second ink tank 22 is not limited to one shown in FIG. 4, and different numbers of materials can be set according to the actual application. Storage container.

Two sensors (namely, the first sensor 61 and the second sensor 62) are installed on the first ink tank 21. When the liquid level detection component moves to a position opposite to the sensor, the sensor communicates with the liquid level detection component, and the cavity The liquid level information in 10 is fed back to the controller 70, and the controller 70 controls the display part to display the information. In some embodiments, when the first liquid level detection component 51 moves to a position relative to the first sensor 61, so that the user can obtain the amount of material remaining in the material storage container, so as to evaluate whether the amount of material remaining can meet the requirements for printing. In order to prepare replaceable materials in advance; when the second liquid level detection component 52 moves to a position relative to the second sensor 62, the controller 70 controls the alarm device (not shown in the figure) to issue an alarm to remind The user replaces with new materials.

The waste collection port 30 of the printing device shown in FIG. 4 is sealed by a rubber plug, and the material supply port 20 feeds the print head 82 through the first transfer tube 81. During the feeding period, the gas flows as shown by the hollow arrow of the material storage container located in the first ink tank 21 in FIG. 4. As the liquid level of the liquid material in the cavity 10 decreases, the air pressure in the cavity 10 decreases. External air enters from the first air hole 41 and enters the cavity 10 from the second air hole 42 through the gas channel 40, thereby maintaining a stable pressure inside the cavity 10, so that the material supply port 20 can stably supply the print head 82 material.

When the material storage container is used to collect waste materials, its installation direction is opposite to that when it is used to supply materials. The second ink tank 22 of the material storage container for collecting waste materials is provided with an ink needle 93. One end of the ink needle 93 is connected to the second The transfer tube 92 is connected, and the other end of the second transfer tube 92 is connected to the waste ink collection tank 91 inside the printing device. Optionally, a motor (not shown in the figure) is also provided between the second transfer tube 92 and the waste ink collection tank 91, so as to provide greater power for the waste ink transfer. The other end of the ink needle 93 penetrates the rubber plug of the waste collection port 30 so as to collect the waste ink in the waste ink collection tank 91 in the cavity 10. As the waste ink inside the cavity 10 gradually increases, the internal space of the cavity 10 gradually decreases, the air pressure inside the cavity 10 gradually increases, and the internal gas is discharged from the first air hole 41 to the atmosphere through the second air hole 42 through the gas channel 40 (The gas flows as shown in the hollow arrow of the waste collection container located in the second ink tank 22 in Figure 4), so as to maintain a stable air pressure inside the cavity 10 so that the waste ink can be collected into the cavity 10 smoothly. in.

The second ink tank 22 is provided with a third sensor 63 located below the waste collection port 30. As the waste collected in the cavity 10 of the waste collection container gradually increases, the first liquid level detection component 51 runs along the side wall of the housing 1. Moving upward, when the first liquid level detection component 51 moves to the position opposite to the third sensor 63, the third sensor 63 communicates with the first liquid level detection component 51 and feeds back the detected liquid level information to the controller, The controller 70 controls the alarm device to issue an alarm to remind the user that the waste collection container is full of waste and needs to be replaced with a new waste collection container, and/or the controller 70 controls the motor to stop working, so that the waste ink in the waste ink collection tank 91 is stopped. Will not be transferred to the waste collection container.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a 3D inkjet printing device including the material storage container shown in FIG. 2. The printing device includes a first ink tank 21, a second ink tank 22, and the two provided in the second embodiment Material storage container. Different from the printing device shown in FIG. 4, the first ink tank 21 for accommodating the material supply container in the printing device shown in FIG. The location is higher and higher than a certain distance, so that users can obtain information about the remaining amount of materials in advance. In other words, the number of sensors on the first ink tank 21 can be increased or decreased according to actual needs. When the liquid level detection component moves to a position opposite to the sensor, the sensor communicates with the liquid level detection component and transmits the detection signal to the controller. 70. The controller 70 makes different instructions according to different signals transmitted by different sensors. It can be understood that the number of material storage containers contained in the first ink tank 21 and the second ink tank 22 is not limited to one each as shown in FIG. 5, and different numbers of materials can be set according to the actual application. Storage container.

The waste collection port 30 in the material storage container in this embodiment is sealed by a sealing film. When the material in the material storage container is exhausted or almost exhausted, the material storage container is used as a waste collection container, and the material storage container is used for material supply At this time, the placement direction in the first ink tank 21 is opposite to the placement direction in the second ink tank 22 when the material storage container is used for waste collection. When the material storage container is used for waste collection, the sealing film of the waste collection port 30 is removed, and one end of the second transfer tube 92 directly penetrates the waste collection port 30, thereby collecting the waste from the waste ink collection tank 91 into the cavity 10 As the waste collected in the cavity 10 gradually increases, the third liquid level detection component 53 moves upward along the side wall of the housing 1. When the third liquid level detection component 53 moves to a position opposite to the third sensor 63, the third sensor 63 communicates with the third liquid level detection component 53 and feeds back information to the controller 70.

In this embodiment, a fifth sensor 65 is further provided on the second ink tank 22 for accommodating the waste collection container, and the fifth sensor 65 is located below the third sensor 63. When the position of the third liquid level detection component 53 and the fifth sensor 65 are opposite, the fifth sensor 65 communicates with the third liquid level detection component 53 and transmits the detection information to the controller 70, and the controller 70 receives the fifth sensor At the 65 signal, the controller 70 controls the display component to display the material storage amount information, and the user can determine whether to prepare the waste collection container that needs to be replaced in advance according to the displayed material storage amount in the cavity 10. When the position of the third liquid level detection component 53 and the third sensor 63 are opposite, the third sensor 63 communicates with the third liquid level detection component 53 and transmits the detection information to the controller 70, and the controller 70 receives the third sensor At the signal 63, the controller 70 controls the alarm device to issue an alarm to remind the user that the waste collection container is full of waste and needs to be replaced with a new waste collection container.

In summary, in the 3D inkjet printing device provided by the present application, the structure of the material supply container and the waste collection container are exactly the same. After the material in the material supply container placed in the first ink tank 21 is supplied, the material supply container is not used. Discarded immediately, it can be placed in the second ink tank 22 as a waste collection container for collecting waste, and continue to exert its value in use, thereby prolonging the life of the material storage container and reducing the user's use cost and environmental pollution.

The above descriptions are only preferred embodiments of the application, and are not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A material storage container for 3D inkjet printing, which is characterized by comprising a housing provided with a cavity located inside the housing, a material supply port and a waste collection port respectively communicating with the cavity And a gas channel, the cavity is used to contain liquid materials;

The gas channel is used to guide gas into the cavity so that the liquid material is discharged from the material supply port, or the gas channel is used to guide the gas in the cavity to discharge, so that the liquid material is discharged from the cavity. The waste collection port enters the cavity;

When the material storage container is used to supply materials, the waste collection port is located above the material supply port;

When the material storage container is used to collect waste, the waste collection port is located below the material supply port.
The 3D inkjet printing material storage container according to claim 1, wherein the two ends of the gas channel are respectively provided with a first air hole and a second air hole;

The first air hole communicates with the outside, the second air hole is arranged inside the cavity and in the vertical direction (Z), and the second air hole is located at the material supply port and the waste collection port between.
The 3D inkjet printing material storage container according to claim 2, wherein the gas channel comprises:

The first gas channel is in communication with the first gas hole;

A second gas passage, respectively communicating with the first gas passage and the second gas hole;

Along the horizontal direction (X), the size of the first gas passage is smaller than the size of the second gas passage.
The 3D inkjet printing material storage container according to claim 3, wherein a baffle is provided in the second gas channel, and the baffle extends from the inner wall of the housing into the cavity;

The baffle is provided with a through hole or a through hole is formed between the baffle and the second gas channel.
The 3D inkjet printing material storage container according to claim 1, wherein ribs extend from the inner wall of the housing, and the ribs divide the cavity into mutually connected compartments;

The material supply port and the waste collection port are respectively located in the same compartment or in different compartments.
The 3D inkjet printing material storage container according to claim 5, further comprising at least one liquid level detection component, the liquid level detection component is used to obtain liquid level information in the cavity.
The 3D inkjet printing material storage container according to claim 6, wherein the material supply port and the waste collection port are respectively located in the same compartment, and the liquid level detection component is one, and It can move in a direction away from the material supply port.
The 3D inkjet printing material storage container according to claim 6, wherein the material supply port and the waste collection port are respectively located in different compartments, and there are two liquid level detection components;

When the material storage container is used to supply materials, one of the liquid level detection components is located above the waste collection port, and the other liquid level detection component is located between the material supply port and the waste collection port between.
The 3D inkjet printing material storage container according to any one of claims 1-8, wherein the waste collection port is provided with a sealing member.
The 3D inkjet printing material storage container according to claim 9, wherein the sealing member includes at least one of a sealing plug and a sealing film.
A 3D inkjet printing device, characterized by comprising a first ink tank, a second ink tank, and at least two 3D inkjet printing material storage containers according to any one of claims 1-10, wherein at least One of the material storage containers is contained in the first ink tank, and at least one of the material storage containers is contained in the second ink tank;

The material storage container accommodated in the first ink tank is used for supplying materials, and the material storage container accommodated in the second ink tank is used for collecting waste materials.
The 3D inkjet printing device according to claim 11, further comprising a sensor, the sensor is respectively arranged in the first ink tank and the second ink tank, the sensor is used to detect liquid Bit information.
The 3D inkjet printing device according to claim 12, further comprising a controller, and the sensor is used to feed back the liquid level information to the controller.