CN220126583U

CN220126583U - Spraying needle tube

Info

Publication number: CN220126583U
Application number: CN202321022846.6U
Authority: CN
Inventors: 何家旺; 王天一; 刘涛
Original assignee: Zhuhai Donghui Semiconductor Equipment Co ltd
Current assignee: Zhuhai Donghui Semiconductor Equipment Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-12-05
Anticipated expiration: 2033-04-28

Abstract

The utility model relates to a spray needle tube, which comprises a tube body, a needle point and a connecting component, wherein the tube body is provided with an inner channel, one end of the tube body is connected with an external air tube, the needle point is partially arranged in the inner channel, the connecting component is arranged at one end of a pipeline far away from the external air tube, the connecting component is sleeved on the needle point, the needle point protrudes out of one end of the connecting component far away from the tube body, and the tip end of the needle point is connected with a conducting wire through the connecting component. The utility model can simultaneously perform electric control and pneumatic control on spraying operation, and can improve the stability of the needle tip shape, thereby improving the spraying quality and the product yield.

Description

Spraying needle tube

Technical Field

The utility model relates to a spray needle tube, and belongs to the technical field of spray.

Background

Conductive ink spraying is a process of spraying conductive ink onto a substrate for manufacturing conductive lines or touch screens in electronic products. In the spraying process, the conductive ink is sprayed on the surface of the substrate through the nozzle to form a conductive circuit or pattern. The conductive ink spraying has the advantages of low cost, high production efficiency, strong adaptability and the like, and has been widely applied to the electronic field.

Conductive ink spraying often uses a needle cannula as a spraying device, the needle tip of which is a very important component of the needle cannula, and the size and shape of which directly affect the spraying effect and the spraying quality, and the quality of the needle tip also affects the stability and the service life of spraying. However, the existing conductive ink needle tube or biological cell microinjection needle tube adopts a mode that a glass catheter is externally connected with a detachable workpiece, so that the needle point is fragile within the micrometer range, the sodium nitrite needle tube is easy to deform in the process of processing and manufacturing, and the shape of the needle point tip is unstable, so that the problem of unstable spraying effect in microinjection technology is caused. In addition, the existing conductive ink spraying mainly adopts a single electric control mode or a pneumatic control mode or a manual injection mode, so that the problem of unstable spraying quantity is more remarkable, and the spraying quality and the product yield are seriously affected. Therefore, the current conductive ink spraying precision is relatively low, and the requirement of a high-precision circuit cannot be met, so that some complex circuits cannot be manufactured by using conductive ink spraying.

Disclosure of Invention

The utility model provides a spray-coating needle tube, which aims at solving at least one of the technical problems existing in the prior art. Therefore, the utility model provides the spraying needle tube, which can simultaneously perform electric control and pneumatic control on spraying operation and can improve the stability of the needle point shape, thereby improving the spraying quality and the product yield.

The technical scheme of the utility model relates to a spray needle tube, which comprises the following steps:

the pipe body is provided with an inner channel, and one end of the pipe body is connected with an external air pipe;

a needle tip, the needle tip portion disposed in the inner channel;

the connecting component is arranged at one end of the pipeline, which is far away from the external air pipe, and is sleeved on the needle point, and the needle point protrudes out of one end of the connecting component, which is far away from the pipe body; the tip of the needle tip is connected with the conductive wire through the connecting component.

According to some embodiments of the utility model, the connection assembly comprises a fixed block connected to an end of the tube body remote from the external trachea; the fixed block is provided with a mounting channel, and the mounting channel is communicated with the inner channel; the needle point is abutted with the inner wall of the installation channel, and the tip of the needle point is exposed out of one end of the fixed block, which is away from the external air pipe.

According to some embodiments of the utility model, the connection assembly further comprises a connection block provided with a connection channel, which communicates with the mounting channel; the connecting block is detachably arranged in the connecting channel in a penetrating way to be abutted with the fixed block; the needle point is connected with the conductive wire through the connecting channel, and the conductive wire is fixed in the connecting channel through the connecting block.

According to some embodiments of the utility model, the fixed block is provided with an embedded part and an external part at opposite ends, and the external diameter of the embedded part is smaller than that of the external part; the embedded part is abutted with the inner wall of the inner channel, the external connection part is exposed out of the pipe body, and the connecting channel is arranged at the external connection part.

According to some embodiments of the utility model, the connecting channel is perpendicular to the mounting channel.

According to some embodiments of the utility model, an abutting groove is formed in one end, close to the pipe body, of the fixing block, an abutting ring is sleeved on the outer side of the needle point, and the abutting ring abuts against the groove wall of the abutting groove.

According to some embodiments of the utility model, one end of the connection block abuts the needle tip.

According to some embodiments of the utility model, the connection block is a connection screw.

According to some embodiments of the utility model, the tube body is connected to the external air tube by an air tube connector.

According to some embodiments of the utility model, the inner channel comprises a fixing section and two connecting sections, the two fixing sections are respectively arranged at two ends of the fixing section, the diameters of the two fixing ends are larger than those of the connecting sections, and the inner wall of the fixing end is in butt joint with the outer wall of the needle point.

The beneficial effects of the utility model are as follows.

The spraying needle tube can simultaneously perform electric control and pneumatic control on spraying operation, and can improve the stability of the shape of the needle point, thereby improving the spraying quality. The pipe body is connected with the external air pipe, so that pneumatic control is carried out on the needle point spraying operation, meanwhile, connection between the needle point and the conductive wire is realized through the connecting component, thus, the pneumatic control is carried out, meanwhile, electric control can be carried out on the needle point, and the stability of the shape of the tip end of the needle point is improved through the connecting component, so that the spraying quality and the product qualification rate are improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a spray needle cannula according to an embodiment of the present utility model.

FIG. 2 is a schematic cross-sectional view of a body of a spray needle cannula according to an embodiment of the present utility model.

Fig. 3 is a schematic view of the structure of a fixed block of a spray needle tube according to an embodiment of the present utility model.

Fig. 4 is a schematic view of the structure of a needle tip of a spray needle tube according to an embodiment of the present utility model.

Reference numerals:

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, aspects, and effects of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly or indirectly fixed or connected to the other feature. Further, the descriptions of the upper, lower, left, right, top, bottom, etc. used in the present utility model are merely with respect to the mutual positional relationship of the respective constituent elements of the present utility model in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any combination of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element of the same type from another. For example, a first element could also be termed a second element, and, similarly, a second element could also be termed a first element, without departing from the scope of the present disclosure.

Referring to fig. 1 to 4, the spray needle tube according to the present utility model includes a tube body 100, a needle tip 200, and a connection assembly 300.

Referring to fig. 1, the tube body 100 is provided with an inner passage 110, one end of the tube body 100 is connected to an external air tube, and a needle tip 200 is partially disposed in the inner passage 110. The connecting component 300 is arranged at one end of the pipeline far away from the external air pipe, the connecting component 300 is sleeved on the needle tip 200, the needle tip 200 protrudes out of one end of the connecting component 300 far away from the pipe body 100, and the tip 210 of the needle tip 200 is connected with the conducting wire through the connecting component 300. It should be noted that, the inner cavity of the needle tip 200 is used for accommodating the paint such as the conductive ink, and after the conductive ink in the needle tip 200 is used, the conductive ink can be injected from the end of the tube body 100 by disassembling the external air tube, or the conductive ink can be directly injected into the inner cavity of the needle tip 200 by the injection gun. It should be noted that, the tube body 100 of the embodiment of the present utility model may be made of a metal material, the needle tip 200 of the embodiment of the present utility model may be made of a silver material, and the external air tube of the embodiment of the present utility model may be made of a rubber hose.

Referring to fig. 1 and 2, the tube body 100 is a long circular tube with a hollow structure, the long inner channel 110 is arranged in the middle of the tube body 100, the needle tip 200 is arranged in the inner channel 110, the outer wall of the needle tip 200 is abutted against the inner wall of the inner channel 110, the inner cavity of the needle tip 200 is communicated with the inner channel 110, and the inner cavity of the needle tip 200 is used for accommodating paint such as conductive ink. The tip 210 of the needle tip 200 protrudes from one end of the tube body 100, and the tip 210 of the needle tip 200 is connected to a conductive wire through the connection assembly 300, thereby being electrically controlled during a spraying operation. Meanwhile, one end of the tube body 100, which is far away from the tip 210 of the needle tip 200, is connected with an external air pipe, and an air pump is connected through the external air pipe, so that air is input into the inner channel 110 and the inner cavity of the needle tip 200, and pneumatic control can be performed synchronously during spraying operation. The lower end of the needle tip 200 is connected with the conductive wire, and the upper end of the needle tip 200 is communicated with an external air pipe, so that electric control and pneumatic control can be simultaneously performed during spraying operation, the control precision of the spraying amount is improved, and the spraying quality and the product yield are improved. And, the connecting component 300 is sleeved on the outer wall of the needle tip 200, which is close to the tip 210, so that the strength of the tip 210 of the needle tip 200 is improved, and when the needle tip 200 is moved to carry out spraying operation, the connecting component 300 plays a certain role in protecting the needle tip 200, thereby being beneficial to improving the problem of fragility of the needle tip 200, improving the stability of the shape of the needle tip 200 and improving the spraying stability.

In some embodiments of the present utility model, referring to fig. 1 and 3, the connection assembly 300 includes a fixing block 310, the fixing block 310 is connected to an end of the tube body 100 remote from the external air tube, and the fixing block 310 is provided with a mounting channel 311, and the mounting channel 311 communicates with the inner channel 110. The tip 200 is abutted against the inner wall of the mounting channel 311, and the tip 210 of the tip 200 is exposed to one end of the fixing block 310 facing away from the external trachea. Referring to fig. 1, a mounting channel 311 is provided at the middle of the fixing block 310, the mounting channel 311 is in a long shape, the mounting channel 311 is communicated with the inner channel 110, the center line of the mounting channel 311 is on the same straight line with the center line of the inner channel 110, and the tip 210 of the needle tip 200 protrudes from the end of the fixing block 310 at one side far away from the external air pipe, so as to perform spraying operation. The needle tip 200 is partially arranged in the inner channel 110, and the outer wall close to the tip 210 of the needle tip 200 is abutted against the inner wall of the mounting channel 311, so that the strength of the tip 210 of the needle tip 200 is enhanced through the fixing block 310, the problem of fragility of the tip 210 of the needle tip 200 is favorably improved, the stability of the shape of the needle tip 200 is improved, and the spraying stability is improved.

In some embodiments of the present utility model, the connection assembly 300 further includes a connection block 320, the fixing block 310 is provided with a connection channel 312, and the connection block 320 is detachably inserted into the connection channel 312 to abut against the fixing block 310. The needle tip 200 is connected to a conductive wire through the connection channel 312, and the conductive wire is fixed in the connection channel 312 through the connection block 320. Referring to fig. 1, the outer opening of the connection channel 312 is provided at the circumferential wall of the fixing block 310, one end of the connection block 320 is embedded into the connection channel 312, and the outer wall of the connection block 320 abuts against the inner wall of the connection channel 312, so that the connection block 320 can be fixed to the fixing block 310. It will be appreciated that in some embodiments of the present utility model, the connection block 320 may be provided as a connection screw, thereby facilitating the installation and removal of the connection block 320.

Further, in some embodiments of the present utility model, the conductive wire enters the mounting channel 311 through the connection channel 312 and is connected to the tip 210 of the needle tip 200, so that the needle tip 200 can be powered on, and the electric control operation can be performed on the spraying operation. Referring to fig. 1, the connection block 320 is detached from the fixing block 310, and then the conductive wire passes through the connection channel 312 and is connected with the needle tip 200, and then the connection block 320 is mounted into the fixing block 310, and the connection block 320 abuts against the fixing block 310, so that the conductive wire is fixed between the connection block 320 and the fixing block 310, and convenient installation of the conductive wire is realized. It can be appreciated that the end of the connecting block 320 embedded in the fixing block 310 can be abutted against the outer wall of the needle tip 200, so that the connection strength between the needle tip 200 and the fixing block 310 can be improved, the stability of the shape of the tip 210 of the needle tip 200 can be improved, and the connection stability of the needle tip 200 and the conductive wire can be improved. Further, the axis of the connecting channel 312 is perpendicular to the axis of the mounting channel 311, so that the connection block 320 and the conductive wire are conveniently mounted, and the stability of the connection block 320 abutting against the needle tip 200 is improved.

In some embodiments of the present utility model, the fixed block 310 is provided at opposite ends thereof with an embedded portion 313 and an external portion 314, and the embedded portion 313 has an outer diameter smaller than that of the external portion 314. The embedded portion 313 abuts against the inner wall of the inner channel 110, the external portion 314 is exposed out of the tube body 100, and the connecting channel 312 is disposed at the external portion 314. Referring to fig. 3, the insertion portion 313 is a hollow cylinder, an outer wall of the insertion portion 313 abuts against an inner wall of the inner passage 110 of the tube body 100, an intermediate passage of the insertion portion 313 communicates with the inner passage 110, and an outer wall of the needle tip 200 abuts against an inner wall of the intermediate passage of the insertion portion 313. The insertion portion 313 is inserted into an end portion of the tube body 100 remote from the external air pipe, thereby achieving connection of the fixing block 310 with the tube body 100. The external connection portion 314 is disposed at one end of the embedded portion 313 facing away from the external air pipe, and the external connection portion 314 protrudes from the end of the pipe body 100. The external connection part 314 is of a hexagonal nut-like structure, the middle channel of the external connection part 314 is communicated with the middle channel of the embedded part 313, and the axes of the two are on the same straight line, and the outer wall of the needle tip 200 close to the tip 210 is lower than the inner wall of the middle channel of the external connection part 314. The outer circumference of the external connection part 314 is hexagonal, and the outer diameter of the external connection part 314 is larger than the outer diameter of the pipe body 100, thereby facilitating the installation of the fixing block 310 on the pipe body 100. Further, referring to fig. 1, the connection channel 312 is disposed on the external connection portion 314, and an opening at one end of the connection channel 312 is disposed on the outer peripheral surface of the external connection portion 314.

In some embodiments of the present utility model, an abutment groove 315 is disposed at one end of the fixing block 310 near the tube body 100, an abutment ring 220 is sleeved outside the needle tip 200, and the abutment ring 220 abuts against a groove wall of the abutment groove 315. Referring to fig. 3 and 4, an abutment groove 315 is provided at an end of the embedded portion 313 facing away from the external portion 314. The outer circumference of the needle tip 200 is sleeved on the abutting ring 220, the abutting ring 220 is embedded into the abutting groove 315, and the outer wall of the abutting ring 220 abuts against the inner wall of the abutting groove 315, so that the stability of connection between the needle tip 200 and the fixed block 310 can be improved.

In some embodiments of the present utility model, the tube body 100 is connected to an external air tube through an air tube connector 120. Referring to fig. 1, an air pipe joint 120 is installed at one end of a pipe body 100, one end of the air pipe joint 120, which is far away from the pipe body 100, is connected with an external air pipe, and an air pump supplies air to an inner channel 110 of the pipe body 100 and an inner cavity of a needle tip 200 through the external air pipe, so that the spraying amount of the needle tip 200 can be controlled by adjusting the air inflow. Further, the tube body 100 is connected to an external air pipe by a set screw having a locking function. Further, the pipe body 100 can be connected with an external air pipe through a rubber screw, and the screw head of the rubber screw is provided with a rubber gasket, so that the sealing effect can be enhanced.

In some embodiments of the present utility model, referring to fig. 1 and 2, the inner channel 110 includes a fixing section 111 and two connecting sections 112, the two fixing sections 111 are respectively disposed at two ends of the fixing section 111, the diameters of the two fixing ends are larger than the diameter of the connecting sections 112, and the inner wall of the fixing end is abutted with the outer wall of the needle tip 200. Referring to fig. 1, the connection sections 112 are respectively disposed at two ends of the tube body 100, the embedded portion 313 of the fixing block 310 is embedded into the wider connection section 112 at one end, and the external air pipe is communicated with the wider connection section 112 at the other end, and the narrower fixing section 111 at the middle of the tube body 100 is abutted against the needle tip 200, so that the needle tip 200 is fixed by the fixing section 111, and meanwhile, the two connection sections 112 are disposed, so that the installation of the fixing block 310 and the entry of air of the external air pipe into the tube body 100 can be facilitated.

The present utility model is not limited to the above embodiments, but can be modified, equivalent, improved, etc. by the same means to achieve the technical effects of the present utility model, which are included in the spirit and principle of the present disclosure. Are intended to fall within the scope of the present utility model. Various modifications and variations are possible in the technical solution and/or in the embodiments within the scope of the utility model.

Claims

1. A spray needle cannula comprising:

the pipe body (100), the pipe body (100) is provided with an inner channel (110), and one end of the pipe body (100) is connected with an external air pipe;

a needle tip (200), the needle tip (200) being partially disposed in the inner channel (110);

the connecting component (300) is arranged at one end, far away from the external air pipe, of the pipe body (100), the connecting component (300) is sleeved on the needle point (200), and the needle point (200) protrudes out of one end, far away from the pipe body (100), of the connecting component (300); the tip (210) of the needle tip (200) is connected to a conductive wire by the connection assembly (300).

2. The spray needle cannula according to claim 1, wherein the connecting assembly (300) comprises a fixed block (310), the fixed block (310) being connected to an end of the tube body (100) remote from the external air tube; the fixed block (310) is provided with a mounting channel (311), and the mounting channel (311) is communicated with the inner channel (110); the needle tip (200) is abutted with the inner wall of the mounting channel (311), and the tip (210) of the needle tip (200) is exposed to one end of the fixed block (310) which is away from the external trachea.

3. The spray needle cannula according to claim 2, wherein the connection assembly (300) further comprises a connection block (320), the fixed block (310) being provided with a connection channel (312), the connection channel (312) being in communication with the mounting channel (311); the connecting block (320) is detachably arranged in the connecting channel (312) in a penetrating way so as to be abutted with the fixed block (310); the needle tip (200) is connected with the conductive wire through the connecting channel (312), and the conductive wire is fixed in the connecting channel (312) through the connecting block (320).

4. A spray needle cannula according to claim 3, characterized in that the fixed block (310) is provided with an insert (313) and an external connection (314) at opposite ends, the insert (313) having an outer diameter smaller than the external connection (314); the embedded part (313) is abutted with the inner wall of the inner channel (110), the external connection part (314) is exposed out of the pipe body (100), and the connecting channel (312) is arranged at the external connection part (314).

5. A spray needle cannula according to claim 3, characterized in that the connecting channel (312) is perpendicular to the mounting channel (311).

6. The spray needle tube according to claim 2, wherein an abutment groove (315) is provided at one end of the fixed block (310) close to the tube body (100), an abutment ring (220) is sleeved outside the needle tip (200), and the abutment ring (220) abuts against a groove wall of the abutment groove (315).

7. A spray needle cannula according to claim 3, characterized in that one end of the connecting block (320) abuts the needle tip (200).

8. A spray needle cannula according to claim 3, characterized in that the connection block (320) is a connection screw.

9. The spray needle cannula according to claim 1, wherein the tube body (100) is connected to the external air tube by an air tube connection (120).

10. The spray needle tube according to claim 1, wherein the inner channel (110) comprises a fixed section (111) and two connecting sections (112), the two fixed sections (111) are respectively arranged at two ends of the fixed section (111), the diameter of the two fixed sections (111) is larger than that of the connecting sections (112), and the inner wall of the fixed section (111) is abutted with the outer wall of the needle tip.