Spray head structure and printing device

Abstract

The utility model relates to the technical field of printing, and provides a nozzle structure and a printing device, and the nozzle structure comprises a seat body which is internally provided with a nozzle flow channel; the overflowing pipe set is connected with the base body, communicates with the nozzle flow channel, comprises an inflow pipeline and an outflow pipeline which are arranged in a separated mode and is suitable for feeding ink into the nozzle flow channel and enabling ink to flow from the nozzle flow channel, and ports of the inflow pipeline and the outflow pipeline are arranged away from the base body; and the overflowing heating assembly is arranged on the seat body, is adjacent to the spray head runner and is suitable for heating the spray head runner. The flow inlet pipeline and the flow outlet pipeline which are communicated with the base body are arranged on the base body of the spray head structure, and all ports of a spray head flow channel entering and exiting the base body are arranged away from the base body, so that collision with an external structure is avoided, structural integrity of the ports is guaranteed, and the problems of structural damage and the like are avoided; and the overflowing heating assembly is arranged to heat the nozzle runner, a port does not need to be avoided, and the heating effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a nozzle structure and a printing device. Background Art

[0002] In the field of printing, especially in jet printing, ink printing is mainly achieved through the nozzle structure. Solid ink jet printing is a form of jet printing. The required solid ink is usually stored in a closed ink cartridge. By heating, the solid ink can be transformed from a solid state to a molten fluid, and then ejected through the nozzle to complete the printing. This printing method can be used in photovoltaic, semiconductor, and display manufacturing equipment, specifically such as battery cell printing.

[0003] The nozzle is provided with a partially exposed port for the ink to enter and exit, and a thermocouple is provided inside the nozzle to keep the ink warm or heat it. However, on the one hand, the nozzle is prone to contact with external structures or operators during maintenance, which can easily bump into the port, causing damage to the port and leakage. On the other hand, the thermocouple inside the nozzle is easily interfered with by the port partially buried in the nozzle, resulting in poor heating effect. Utility Model Content

[0004] In view of this, the present invention provides a nozzle structure and a printing device to solve the problem that the nozzle port is easily damaged and the heating effect of the heating element in the nozzle for keeping the ink warm or heating the ink is poor.

[0005] In the first aspect, the utility model provides a nozzle structure, comprising: a seat body, with a nozzle flow channel built in; a flow tube group, connected to the seat body and communicated with the nozzle flow channel, including an inlet pipe and an outlet pipe separately arranged, suitable for respectively introducing ink into and out of the nozzle flow channel, and the ports of the inlet pipe and the outlet pipe are arranged away from the seat body; an overflow heating component, arranged on the seat body, adjacent to the nozzle flow channel, and suitable for heating the nozzle flow channel.

[0006] Beneficial effects

[0007] By respectively setting an inlet pipe and an outlet pipe connected to the seat body of the nozzle structure, the various ports entering and exiting the nozzle flow channel in the seat body are set away from the seat body to avoid collision with the external structure, ensure the structural integrity of the port, and avoid problems such as structural damage. At the same time, an overflow heating component is set on the seat body, adjacent to the nozzle flow channel, to heat the nozzle flow channel, and then to keep the ink inside it warm. There is no need to avoid the extension part of the port in the seat body, and the distance between the overflow heating component and the nozzle flow channel can be set according to actual needs, so that the heating effect is better.

[0008] In an optional embodiment, the nozzle structure further includes: an inlet heating element, which is arranged adjacent to the inlet pipeline and extends in the same direction, suitable for heating the inlet pipeline; and / or, an outflow heating element, which is arranged adjacent to the outflow pipeline and extends in the same direction, suitable for heating the outflow pipeline.

[0009] In an optional embodiment, the nozzle structure also includes: a first side wall, connected to the base body, on which the inlet pipe and the inlet heating element are arranged; a second side wall, connected to the base body and arranged on the same side as the first side wall, on which the outlet pipe and the outlet heating element are arranged.

[0010] In an optional embodiment, the first side wall is integrally provided with the inlet pipe, and the port of the inlet pipe is provided at an end of the first side wall away from the seat body; and / or the second side wall is integrally provided with the outlet pipe, and the port of the outlet pipe is provided at an end of the second side wall away from the seat body.

[0011] In an optional embodiment, the seat body further includes: a spray surface, which is arranged on a different plane from the first side wall, and has a plurality of spray holes distributed thereon, and the spray holes are respectively connected to the nozzle flow channel.

[0012] In an optional embodiment, the nozzle flow channel includes: an inlet section, one end of which is connected to the inlet pipeline; a bending section, which is arranged in a bending shape and is connected to the other end of the inlet section; and an outlet section, both ends of which are respectively connected to the bending section and the outlet pipeline.

[0013] In an optional embodiment, the bending section is correspondingly arranged between the inlet section and the outlet section; the overflow heating assembly includes at least two overflow heating blocks, which are adjacent to the inlet section and the outlet section respectively, and are distributed on the side of the two facing away from the bending section.

[0014] In an optional embodiment, the nozzle structure further includes: a temperature detection component, which is respectively arranged on the first side wall and the second side wall, and is respectively arranged adjacent to the inlet pipe and the outlet pipe.

[0015] In a second aspect, the present invention further provides a printing device comprising the above-mentioned nozzle structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic structural diagram of a nozzle structure according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 A schematic top view of the nozzle structure shown;

[0019] Figure 3 for Figure 1 A bottom view schematic diagram of the nozzle structure shown;

[0020] Description of reference numerals:

[0021] 1. Base; 11. Spray surface; 12. Spray hole; 2. Inlet pipe; 3. Outlet pipe; 4. Overcurrent heating assembly; 41. Overcurrent heating block; 5. Inlet heating element; 6. Outlet heating element; 7. First side wall; 8. Second side wall; 9. Port; 10. Temperature detection element. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0023] like Figure 1-Figure 3 In the first aspect, this embodiment provides a nozzle structure, including a base body 1, a flow tube group and a flow heating component 4.

[0024] The base body 1 has a built-in nozzle flow channel. The shape and form of the nozzle flow channel can be distributed accordingly as needed. In this embodiment, the nozzle flow channel is arranged in a single flow channel or multiple curved arcs. It is understood that the flow channel can be arranged as a combination of single flow channels and multiple flow channels, and its shape can be straight, curved, or curved. In this embodiment, the base body 1 has a plurality of nozzle holes 12 on the underside distributed corresponding to the extension path of the nozzle flow channel.

[0025] The flow tube assembly is connected to the base 1 and communicates with the nozzle flow channel. Preferably, the two are detachably fixed, such as by screws, or can be non-detachably connected, such as by welding. The flow tube assembly includes a separate inlet pipe 2 and an outlet pipe 3, adapted to respectively introduce ink into and remove ink from the nozzle flow channel. Ports 9 of the inlet pipe 2 and outlet pipe 3 are located away from the base 1.

[0026] The overflow heating component 4 is arranged on the base body 1, adjacent to the nozzle flow channel, and is suitable for heating the nozzle flow channel.

[0027] By respectively setting an inlet pipe 2 and an outlet pipe 3 connected to the seat body 1 of the nozzle structure, the ports 9 entering and exiting the nozzle flow channel in the seat body 1 are set away from the seat body 1 to avoid collision with the external structure, ensure the structural integrity of the port 9, and avoid problems such as structural damage. At the same time, on the seat body 1, an overflow heating component 4 is set at a position adjacent to the nozzle flow channel to heat the nozzle flow channel, and then to keep the ink inside it warm or heat it. There is no need to avoid the extension part of the port 9 in the seat body 1. The distance between the overflow heating component 4 and the nozzle flow channel can be set according to actual needs, and the heating effect is better.

[0028] The nozzle structure further includes: an inlet heating element 5 and an outlet heating element 6 .

[0029] The inlet heating element 5 is disposed adjacent to the inlet pipe 2 and extends in the same direction as the inlet pipe 2, and is suitable for heating the inlet pipe 2. The outlet heating element 6 is disposed adjacent to the outlet pipe 3 and extends in the same direction as the outlet pipe 3, and is suitable for heating the outlet pipe 3. Preferably, both are electric heating blocks. As an alternative embodiment, only one of the two can be provided.

[0030] By providing the inlet heating element 5 and the outlet heating element 6, the ink before and after entering and exiting the nozzle flow channel can be heated respectively, and combined with the overflow heating component 4, the ink is kept in a fluid form throughout the entire range. As an alternative embodiment, the inlet heating element 5 and the outlet heating element 6 can also be omitted.

[0031] The nozzle structure further includes: a first side wall 7 and a second side wall 8 .

[0032] The first side wall 7 is connected to the base body 1, and is provided with an inlet pipe 2 and an inlet heating element 5. The second side wall 8 is connected to the base body 1, and is provided with an outlet pipe 3 and an outlet heating element 6. The second side wall 8 is arranged on the same side of the base body 1 as the first side wall 7. Preferably, the two and the nozzle 12 are located on two opposite sides of the base body 1.

[0033] The first side wall 7 and the second side wall 8 can serve as a foundation for installation and structural support of the inlet pipe 2 and the inlet heating element 5 as well as the outflow pipe 3 and the outflow heating element 6, thereby improving the stability of each structure.

[0034] As a convertible embodiment, the first side wall 7 and the second side wall 8 can be integrally arranged. In addition, the inlet pipe 2, the inlet heating element 5, the outlet pipe 3 and the outlet heating element 6 can also be arranged on the inner side opposite to the first side wall 7 and the second side wall 8.

[0035] Preferably, the first side wall 7 is integrally formed with the inlet pipe 2, and the port 9 of the inlet pipe 2 is located at the end of the first side wall 7 away from the base 1; the second side wall 8 is integrally formed with the outlet pipe 3, and the port 9 of the outlet pipe 3 is located at the end of the second side wall 8 away from the base 1. As an alternative embodiment, only one of the two arrangements can be selected.

[0036] Specifically, a long hole serving as an inlet pipe 2 is provided inside the first side wall 7, one end of the long hole is connected to the seat body 1, and the other end is provided with a port 9. Similarly, a long hole serving as an outlet pipe 3 is provided inside the first side wall 7. As a convertible embodiment, the inlet pipe 2 can be independent of the long hole inside the first side wall 7 and nested with each other, and the outlet pipe 3 is provided similarly.

[0037] The base body 1 also includes a spray surface 11. The first side wall 7 and the second side wall 8 are located on a side that is eccentric to the spray surface 11. A plurality of spray holes 12 are distributed on the spray surface 11. Preferably, the spray holes 12 can be distributed corresponding to the nozzle flow channel, and the spray holes 12 are respectively connected to the nozzle flow channel.

[0038] The nozzle flow channel includes: an inlet section, a bending section and an outlet section.

[0039] In this embodiment, one end of the inlet section is connected to the inlet pipeline 2 , and a single spray hole 12 group section formed by extending and arranging a plurality of spray holes 12 corresponds to the spray surface 11 .

[0040] The bending section is arranged in a bending shape and is connected to the other end of the inlet section. In this embodiment, it includes three bending segments and two straight segments. Each straight segment corresponds to a single spray hole 12 group segment formed by extending and arranging a plurality of spray holes 12 on the spray surface 11. It can be understood that the bending segment can also correspond to the spray hole 12 group segment, and the number of bending segments and straight segments included in the bending section can be adjusted accordingly.

[0041] The two ends of the outflow section are respectively connected to the bending section and the outflow pipeline 3 , and the spray surface 11 corresponds to a single spray hole 12 group segment formed by extending and arranging a plurality of spray holes 12 .

[0042] Horizontally, the bend section is sandwiched between the inlet section and the outlet section. The overflow heating assembly 4 includes two overflow heating blocks 41. There are overflow heating blocks 41 adjacent to the inlet section and the outlet section, and distributed on the side of each section facing away from the bend section. It is understood that multiple overflow heating blocks 41 may be provided.

[0043] In this embodiment, the overflow heating assembly 4 is disposed outside the base 1, and two overflow heating blocks 41 are disposed on the outside of the base 1, opposite to each other, and fixedly mounted on the side of the base 1. As an alternative embodiment, the overflow heating assembly 4 can be disposed within the base 1, and the overflow heating blocks 41 included therein can penetrate into the interior of the base 1, relatively closer to the internal inlet and outlet sections. As another alternative embodiment, the overflow heating assembly 4 includes a spiral sleeve heating block that is sleeved on each section of the nozzle flow channel, avoiding the branch flow channel connecting the nozzle orifice 12 on the nozzle flow channel.

[0044] Preferably, the overflow heating block 41 can be detachably connected to the base body 1 to facilitate replacement and maintenance.

[0045] In addition, the printhead structure also includes a temperature sensor 10, which is disposed on the first side wall 7 and the second side wall 8, respectively, adjacent to the inlet pipe 2 and the outlet pipe 3. The temperature sensor 10 can detect the temperature of the ink in the inlet pipe 2 and the outlet pipe 3 on the first side wall 7 and the second side wall 8, respectively, to facilitate the operator to make corresponding adjustments.

[0046] In a second aspect, the present invention further provides a printing device comprising the above-mentioned nozzle structure.

[0047] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A nozzle structure, characterized in that: include: The seat body (1) has a built-in nozzle flow channel; a flow pipe assembly connected to the base (1) and in communication with the nozzle flow channel, comprising a flow inlet pipe (2) and a flow outlet pipe (3) which are separately arranged and adapted to respectively introduce ink into and extract ink from the nozzle flow channel, wherein ports (9) of the flow inlet pipe (2) and the flow outlet pipe (3) are arranged away from the base (1); An overflow heating component (4) is arranged on the seat (1), adjacent to the nozzle flow channel, and is suitable for heating the nozzle flow channel.

2. The nozzle structure according to claim 1, characterized in that: Also includes: An inlet heating element (5) is arranged adjacent to the inlet pipeline (2) and extends in the same direction as the inlet pipeline (2), and is suitable for heating the inlet pipeline (2); and / or, An outflow heating element (6) is arranged adjacent to the outflow pipeline (3) and extends in the same direction as the outflow pipeline (3), and is suitable for heating the outflow pipeline (3).

3. The nozzle structure according to claim 2, characterized in that: Also includes: a first side wall (7) connected to the seat body (1) and provided with the inlet pipe (2) and the inlet heating element (5); The second side wall (8) is connected to the seat body (1) and is arranged on the same side as the first side wall (7), and the outflow pipeline (3) and the outflow heating element (6) are arranged on the second side wall.

4. The nozzle structure according to claim 3, characterized in that: The first side wall (7) and the inlet pipe (2) are integrally arranged, and the port (9) of the inlet pipe (2) is arranged at an end of the first side wall (7) away from the seat body (1); and / or, The second side wall (8) and the outflow pipeline (3) are integrally arranged, and the port (9) of the outflow pipeline (3) is arranged at an end of the second side wall (8) away from the seat body (1).

5. The nozzle structure according to claim 3 or 4, characterized in that: The seat (1) further comprises: The spraying surface (11) is arranged on a different plane from the first side wall (7), and is provided with a plurality of spray holes (12) distributed thereon, wherein the spray holes (12) are respectively communicated with the nozzle flow channels.

6. The nozzle structure according to claim 5, characterized in that: The nozzle flow channel includes: An inlet section, one end of which is in communication with the inlet pipeline (2); The bending section is arranged in a bending shape and is connected to the other end of the inlet section; The outflow section has two ends respectively connected to the bending section and the outflow pipeline (3).

7. The nozzle structure according to claim 6, characterized in that: The bending section is correspondingly arranged between the inlet section and the outlet section; The overflow heating assembly (4) comprises at least two overflow heating blocks (41), and the overflow heating blocks (41) are respectively adjacent to the inlet section and the outlet section, and are distributed on the side of the two sections facing away from the bending section.

8. The nozzle structure according to claim 3, characterized in that: Also includes: The temperature detection element (10) is respectively arranged on the first side wall (7) and the second side wall (8), and is respectively arranged adjacent to the inlet pipeline (2) and the outlet pipeline (3).

9. A printing device, characterized in that: The nozzle structure comprises the nozzle structure according to any one of claims 1 to 8.

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