Printing device with environment treatment function

Abstract

The utility model provides a printing device with an environment treatment function. The printing device comprises a spray head and an air supply ring. The nozzle is configured to apply a printing material to a target object, and a target area is defined between the tail end of the nozzle and the target object. The air supply ring sleeves the nozzle, and the tail end of the nozzle extends from the air supply ring to the side where the target object is located. The gas supply ring is provided with one or more output ends used for outputting gas, and the output ends face the target area. Therefore, the printing device has a good printing effect.

Description

Technical Field

[0001] The present disclosure relates to the field of printing, and in particular to a printing device with an environmental processing function. Background Art

[0002] In the EHD electrohydrodynamic inkjet printing system, the printing effects of some printing materials that have special requirements for the environment, such as volatile materials, are often affected by the temperature and humidity of the local environment. Printing systems with global temperature and humidity control devices belong to the prior art. The disadvantage of humidifying the global environment is that it cannot accurately adjust the local humidity on the workpiece, resulting in printing failures of some humidity-sensitive materials, hindering the progress of production and research and development.

[0003] Compared with global humidification, local area humidification can not only accurately control local humidity, but also protect electrical equipment in other areas. For example, U.S. invention patent application US20210070043A1 discloses a multi-nozzle electrofluidic printing. Each nozzle is provided with an air flow channel. The air flow channel is connected to the air source so that the gas flow field is arranged between the end of each nozzle and the printing surface. However, the above-mentioned air flow channel blocks the end of the nozzle, making it difficult for the end of the nozzle to be photographed by the optical system used to record the printing process. Utility Model Content

[0004] The present disclosure is made in view of the above-mentioned state of the prior art. The purpose of the present disclosure is to provide a printing device with an environmental processing function, which can overcome at least one of the disadvantages described in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the present disclosure may adopt the following technical solutions.

[0006] The present disclosure provides a printing device with an environmental treatment function, comprising: a nozzle, wherein the nozzle is configured to apply printing material to a target object, wherein a target area is defined between the end of the nozzle and the target object; and an air supply ring, wherein the air supply ring is sleeved on the nozzle, wherein the end of the nozzle extends from the air supply ring toward the side where the target object is located, and wherein the air supply ring is provided with one or more output ends for outputting gas, wherein the output ends face the target area.

[0007] In an optional solution, the output direction of the output end is inclined relative to the radial direction of the air supply ring.

[0008] In another optional solution, a plurality of the output ends are arranged side by side in the circumferential direction of the air supply ring.

[0009] In another optional solution, a channel communicating with the output end is provided inside the gas supply ring, and the channel is configured to supply gas to the output end.

[0010] In another optional solution, the channel includes a first part and a second part, the first part is connected to the plurality of output ends via the second part, and the area of ​​the flow cross section of the first part is smaller than the area of ​​the flow cross section of the second part.

[0011] In another optional scheme, the channel includes a first part and a second part, the first part is connected to the output end via the second part, the longitudinal section of the second part is circular, the downstream end of the first part and the output end are arranged on the circumference of the longitudinal section, and are staggered in the circumferential direction of the longitudinal section, so that the gas changes its flow direction when flowing through the second part.

[0012] In another optional solution, the flow cross section of the channel extends in a ring shape along the circumference of the air supply ring.

[0013] In another optional solution, the printing device further comprises a gas source connected to the gas supply ring, and the gas source is configured to generate the gas.

[0014] In another alternative, the gas comprises water vapor.

[0015] In another optional solution, the printing device further includes an optical system, and the optical system is configured to be able to photograph the distal end of the nozzle.

[0016] By adopting the above technical solution, by extending the end of the nozzle from the air supply ring and providing an output end facing the target area, the air supply ring can deliver gas to the target area without blocking the end, so that the end can be monitored by, for example, an optical system, so that the printing device can have a better printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a printing device with an environment processing function according to an embodiment of the present disclosure.

[0018] Figure 2 and Figure 3 yes Figure 1 Schematic diagram of a partial structure of a printing device in FIG.

[0019] Figure 4 yes Figure 2 A front view of a partial structure of a printing device in FIG.

[0020] Figure 5 yes Figure 2A bottom view of a partial structure of the printing device in FIG.

[0021] Figure 6 yes Figure 1 A sectional view of a partially enlarged view of the printing device in FIG.

[0022] Figure 7 yes Figure 1 Schematic diagram of the output end of the air supply ring of the printing device.

[0023] Figure 8 yes Figure 2 and Figure 3 A schematic diagram of a part of the structure of a printing device in which a nozzle is replaced with a nozzle of another type.

[0024] Description of Reference Numerals

[0025] 30 Printing device

[0026] 32 Nozzles

[0027] 34 Air supply ring

[0028] 36 Printing Materials

[0029] 38 Target audience

[0030] 40 End

[0031] 42 Target Area

[0032] 44 Output

[0033] 46 channels

[0034] 48 Part 1

[0035] 50 Part 2

[0036] 51 Downstream

[0037] 52 Gas source

[0038] 54 Catheter

[0039] 56 Fixed seat

[0040] 58 Fasteners

[0041] 60 Actuator

[0042] 62 Feed pipe

[0043] 64 Platforms

[0044] P Output direction

[0045] R Radial

[0046] C Circumferential

[0047] A-axis

[0048] L Center axis DETAILED DESCRIPTION

[0049] like Figure 1 As shown, the embodiment of the present disclosure provides a printing device 30 with an environment processing function.

[0050] like Figures 1 to 6 As shown, the printing device 30 includes a nozzle 32 and an air supply ring 34. The nozzle 32 is configured to apply a printing material 36 to a target object 38, and a target area 42 is defined between a terminal 40 of the nozzle 32 and the target object 38. The air supply ring 34 is sleeved on the nozzle 32, and the terminal 40 of the nozzle 32 extends from the air supply ring 34 toward the side where the target object 38 is located. The air supply ring 34 is provided with one or more output ends 44 for outputting gas, and the output ends 44 face the target area 42.

[0051] In the above technical solution provided by the embodiment of the present disclosure, by extending the end 40 of the nozzle 32 from the air supply ring 34 and providing an output end 44 facing the target area 42, the air supply ring 34 can deliver gas to the target area 42 without blocking the end 40, so that the end 40 can be monitored by, for example, an optical system, so that the printing device 30 can have a better printing effect.

[0052] In some examples, such as Figure 6 As shown, the printing material 36 is liquid.

[0053] In some examples, such as Figure 6 As shown, the printing material 36 includes a semiconductor material or an insulating material.

[0054] In some examples, such as Figure 1 and Figure 6 As shown, the target object 38 is a plate-shaped element, and the thickness direction of the target object 38 is parallel to the axial direction A of the air supply ring 34 .

[0055] In some examples, such as Figures 1 to 6 As shown, the spray head 32 is an electrohydrodynamic (EHD) spray head.

[0056] In some examples, such as Figures 3 to 7 As shown, the spray head 32 and the air supply ring 34 are coaxially arranged.

[0057] In some examples, such as Figure 3 , Figure 5 as well as Figure 6 As shown, the output end 44 is configured as a hole, for example, the output end 44 may be a round hole.

[0058] In some examples, the diameter of the output end 44 is 1 mm to 1.5 mm. For example, the diameter of the output end 44 may be 1.2 mm.

[0059] In some examples, such as Figures 1 to 6 As shown, the air supply ring 34 is removably connected to the spray head 32. Figure 8 (a) to Figure 8 As shown in (c), different types of nozzles 32 and different types of air supply rings 34 can be used together, so that the printing device 30 can be applied to a variety of different usage scenarios. In addition, such a setting is also conducive to the adjustment and maintenance of the nozzle 32 and the air supply ring 34.

[0060] In some examples, such as Figures 1 to 6 As shown, the air supply ring 34 is fixedly connected to the spray head 32 .

[0061] In some examples, such as Figures 1 to 5 As shown, the printing device 30 includes a fixing seat 56. The fixing seat 56 is sleeved on the nozzle 32, and the air supply ring 34 is fixedly connected to the nozzle 32 via the fixing seat 56. For example, the nozzle 32 can be fixedly connected to the fixing seat 56 by a fastener 58, and the air supply ring 34 can be screwed into the fixing seat 56.

[0062] In some examples, such as Figure 1 As shown, the printing device 30 further includes an actuator 60 . The actuator 60 is connected to the nozzle 32 and the air supply ring 34 via the fixing seat 56 , and is used to drive the nozzle 32 and the air supply ring 34 to move relative to the target object 38 .

[0063] In some examples, such as Figure 1 As shown, the printing device 30 further includes a supply pipe 62 connected to the nozzle 32. The supply pipe 62 is configured to supply the printing material 36 to the nozzle 32.

[0064] In some examples, such as Figure 1 As shown, the printing device 30 further includes a platform 64. The platform 64 is used to support the target object 38.

[0065] In some examples, such as Figure 6 and Figure 7 As shown, the output direction P of the output end 44 is inclined relative to the radial direction R of the air supply ring 34. Here, the output direction P and the radial direction R are directions in the same plane, and "inclined" means that the two directions are neither parallel nor orthogonal. Here, the output direction P of the output end 44 refers to a direction orthogonal to the flow cross section of the output end 44. For example, in the embodiment of the present disclosure, the output direction P can be the axial direction of the output end 44.

[0066] In some examples, such as Figure 3 , Figure 5 as well as Figure 6 As shown, the output end 44 is directed toward the radial inner side of the air supply ring 34 and toward the axial side where the terminal end 40 is located.

[0067] In some examples, such as Figure 7 As shown, an angle θ is formed between the output direction P and the radial direction R, and the angle θ is 20° to 40°. For example, the angle θ may preferably be the angle in Table 1, where d is the radial distance between the output end 44 and the central axis L of the nozzle 32 .

[0068] Table 1

[0069] d / mm 3 4 5 6 θ / ° 38 34 31 29

[0070] In some examples, such as Figure 6 As shown, the axial distance between the tip 40 of the spray head 32 and the target object 38 is 0.8 mm to 1.2 mm, for example, 1 mm.

[0071] In some examples, such as Figure 3 , Figures 5 and 6 As shown, a plurality of output ends 44 are arranged side by side in the circumferential direction C of the gas supply ring 34. In this way, the gas can be delivered to the target area 42 more evenly in the circumferential direction C of the gas supply ring 34. In other embodiments, when the gas supply ring 34 is provided with only one output end 44, the output end 44 can extend in the circumferential direction C into a ring shape.

[0072] In some examples, such as Figure 5 As shown, the plurality of output ports 44 are evenly spaced apart in the circumferential direction C. As shown in FIG.

[0073] In some examples, such as Figure 5 As shown, the number of output terminals 44 is 6 to 12, for example, may be ten.

[0074] In some examples, such as Figure 6 As shown, a passage 46 communicating with the output end 44 is disposed inside the gas supply ring 34 , and the passage 46 is configured to supply gas to the output end 44 .

[0075] In some examples, such as Figure 6 As shown, the channel 46 includes a first portion 48 and a second portion 50. The first portion 48 is in communication with the plurality of output ends 44 via the second portion 50, and the area of ​​the flow cross section of the first portion 48 is smaller than the area of ​​the flow cross section of the second portion 50. In this way, the airflow can be buffered by the second portion 50 before reaching the output end 44, so that the airflow discharged from each output end 44 can have substantially the same parameters, such as substantially the same flow rate, humidity or temperature.

[0076] In some examples, such as Figure 6As shown, the area of ​​the flow cross section of the second portion 50 is larger than the area of ​​the flow cross section of the output end 44 .

[0077] In some examples, such as Figure 6 As shown, the first portion 48 extends in the axial direction A.

[0078] In some examples, such as Figure 6 As shown, the longitudinal section of the second part 50 is circular. The downstream end 51 and the output end 44 of the first part 48 are arranged on the circumference of the longitudinal section and are staggered in the circumferential direction of the longitudinal section, so that the gas changes the flow direction when flowing through the second part 50. Here, the longitudinal section refers to a section orthogonal to the flow cross section. For example, in the embodiment of the present disclosure, the longitudinal section of the second part 50 can be a radial section of the second part 50. In this way, by making the longitudinal section of the second part 50 circular, the second part 50 can have a smooth inner wall surface, so that the flow velocity loss of the gas when the second part 50 turns is small.

[0079] In some examples, such as Figure 6 As shown, the flow cross section of the passage 46 extends in a ring shape along the circumferential direction C of the air supply ring 34 .

[0080] In some examples, such as Figure 1 As shown, the printing device 30 further includes a gas source 52 connected to the gas supply ring 34 , and the gas source 52 is configured to generate gas.

[0081] In some examples, such as Figure 1 As shown, the printing device 30 further includes a conduit 54. The gas source 52 is connected to the gas supply ring 34 via the conduit 54.

[0082] In some examples, the gas includes water vapor. In this way, the printing device 30 can adjust the humidity of the target area 42 so that the printing environment matches the printing material 36, thereby further optimizing the printing effect and improving the printing success rate of the printing device 30. In addition, the water vapor can prevent static electricity from being generated near the nozzle 32, thereby protecting the normal operation of the printing device 30. Furthermore, the appropriate humidity can make the printing device 30 suitable for more types of printing materials 36, especially semiconductor materials and insulating materials with higher environmental requirements, so that the printing device 30 can be applied to a variety of different usage scenarios.

[0083] In some examples, the water vapor is non-mist moisture.

[0084] In some examples, such as Figure 1As shown, the gas source 52 includes a temperature regulating element, which is configured to change the temperature of the gas. For example, the temperature regulating element may include an electric heater or a compressor. In this way, the printing device 30 can adjust the temperature of the target area 42 so that the printing environment matches the printing material 36, thereby further optimizing the printing effect and improving the printing success rate of the printing device 30. In addition, the appropriate temperature can make the printing device 30 applicable to more types of printing materials 36, especially semiconductor materials and insulating materials with higher environmental requirements, so that the printing device 30 can be applied to more usage scenarios.

[0085] In some examples, such as Figure 1 as well as Figures 3 to 6 As shown, the printing device 30 further includes an optical system (not shown in the figure), which is configured to be able to capture the end 40 of the nozzle 32 .

[0086] The embodiment of the present disclosure also provides a printing method of the printing device 30 , and the printing method includes the following steps.

[0087] (i) Determine the working area of ​​the nozzle 32.

[0088] (ii) Before starting printing, the nozzle 32 is moved in the working area, and gas is supplied to the working area through the gas supply ring 34 to pre-treat the environment of the working area.

[0089] (iii) After the pre-processing is completed, the printing material 36 is applied to the target object 38 through the nozzle 32.

[0090] It should be understood that when implementing the above step (iii), the gas supply ring 34 can still supply gas to the target area 42 to further adjust the environment of the target area 42, such as adjusting the humidity, temperature, etc. of the target area 42. Of course, if the environment of the target area 42 has been adjusted to a suitable state when implementing the above step (ii), then when implementing step (iii), the gas supply ring 34 may no longer supply gas.

[0091] In the above technical solution provided by the embodiment of the present disclosure, by pre-processing the working area, the gas can be pre-arranged in the working area before printing, so that the printing device 30 does not need to make too many adjustments to the environment in the working area during the printing process, thereby improving the printing efficiency.

[0092] The terms used in the embodiments of the present disclosure are only used to explain the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be the common meanings understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Similar words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. "Multiple" refers to two or more, unless otherwise clearly defined.

[0093] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A printing device with environmental processing function, characterized in that: include: A nozzle configured to apply a printing material to a target object, wherein a target area is defined between a distal end of the nozzle and the target object; as well as An air supply ring is sleeved on the nozzle, and a distal end of the nozzle extends from the air supply ring toward the target object. The air supply ring is provided with one or more output ends for outputting gas, and the output ends face the target area.

2. The printing device according to claim 1, characterized in that: An output direction of the output end is inclined relative to a radial direction of the air supply ring.

3. The printing device according to claim 1, characterized in that: The plurality of output ends are arranged side by side in the circumferential direction of the air supply ring.

4. The printing device according to any one of claims 1 to 3, characterized in that: A channel communicating with the output end is disposed inside the gas supply ring, and the channel is configured to supply gas to the output end.

5. The printing device according to claim 4, characterized in that: The channel includes a first portion and a second portion, the first portion is communicated with the plurality of output ends via the second portion, and an area of ​​a flow cross section of the first portion is smaller than an area of ​​a flow cross section of the second portion.

6. The printing device according to claim 4, characterized in that: The channel includes a first part and a second part, the first part is connected to the output end via the second part, the longitudinal section of the second part is circular, the downstream end of the first part and the output end are arranged on the circumference of the longitudinal section, and are staggered in the circumferential direction of the longitudinal section, so that the gas changes its flow direction when flowing through the second part.

7. The printing device according to claim 4, characterized in that: The flow cross section of the channel extends in a ring shape along the circumference of the air supply ring.

8. The printing device according to any one of claims 1 to 3, characterized in that: The printing device further includes a gas source connected to the gas supply ring, wherein the gas source is configured to generate the gas.

9. The printing device according to claim 8, characterized in that: The gas includes water vapor.

10. The printing device according to any one of claims 1 to 3, characterized in that: The printing device further includes an optical system configured to capture a distal end of the nozzle.

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