A pneumatic marking ink tube

Abstract

This utility model relates to the field of chip marking, specifically disclosing a pneumatic marking ink tube, comprising: a tube body having a receiving cavity for containing ink; a needle tube disposed at one end of the tube body and communicating with the receiving cavity; a cap assembled on the tube body and sealing the receiving cavity; a sealing plug comprising an axially connected adjusting section and a plug, the plug being used to isolate the fluid communication between the receiving cavity and the needle tube, the adjusting section being detachably connected to the cap and capable of reciprocating along the axial direction of the cap to change the position of the plug; and an ink guide core comprising a connecting member and a fishing line, one end of the fishing line being fixed to the connecting member, the ink guide core passing through both ends of the sealing plug and capable of reciprocating relative to the sealing plug, the other end of the fishing line extending out of the needle tube. The beneficial effects of the above technical solution are: the sealing plug opens or closes the fluid channel between the needle tube and the receiving cavity through axial movement, and the ink tube enters the usage state after the fluid channel is opened. The sealing plug can stably remain in the moved position, ensuring smooth subsequent marking work.

Description

Technical Field

[0001] This utility model relates to the field of wafer marking technology, specifically to a pneumatic marking ink tube. Background Technology

[0002] In the wafer manufacturing process, to ensure chip yield, it is necessary to identify bad spots (such as defects, short circuit areas, etc.) on the wafer surface through inspection equipment, and use marking equipment with ink tubes to accurately mark the bad spot locations, providing positioning basis for subsequent processes such as cutting and packaging.

[0003] In existing technologies, ink tubes used for marking defective spots on wafers generally suffer from the following problems: adjusting the ink tube between its working and closed states is quite complex, requiring rotation to a specific angle or alignment with the mark before a lifting action, followed by continued rotation after lifting. This operation is cumbersome and delicate, causing inconvenience to users. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a pneumatic marking ink tube that can be adjusted to the working state by a single rotation, which is more convenient.

[0005] The present invention provides a technical solution: a pneumatic marking ink tube, comprising:

[0006] The tube body has a cavity for holding ink.

[0007] The needle is located at one end of the tube and communicates with the receiving cavity.

[0008] The cap is fitted onto the tube body and seals the receiving cavity.

[0009] The sealing plug includes an axially connected adjusting section and a plug. The plug is used to isolate the fluid communication between the receiving cavity and the syringe. The adjusting section is detachably connected to the cap and can reciprocate along the axial direction of the cap to change the position of the plug.

[0010] The ink guide core includes a connector and a fishing line. One end of the fishing line is fixed to the connector. The ink guide core passes through both ends of the sealing plug and can move back and forth relative to the sealing plug. The other end of the fishing line passes through the needle tube.

[0011] The beneficial effects of the above technical solution are as follows: the sealing plug opens or closes the fluid channel between the needle and the receiving cavity through axial movement, and the ink tube enters the usage state after the fluid channel is opened. The sealing plug can stably remain in the moved position, ensuring the smooth progress of subsequent dotting operations.

[0012] Furthermore, the outer periphery of the cap is tightly sealed to the pipe body, and the end of the cap is provided with a flange that abuts against the end of the pipe body. The center of the cap is provided with a clearance hole for the sealing plug to pass through.

[0013] Furthermore, the inner wall of the relief hole is provided with threads, and the adjustment section includes a threaded part that is screwed into the relief hole and an operating part located outside the sealing plug.

[0014] Furthermore, the thread has two discontinuous segments, with the threads protruding from the inner wall of the clearance hole.

[0015] Furthermore, a sealing ring is arranged on the inner end face of the cover corresponding to the position of the clearance hole, and the inner edge of the sealing ring is in close contact with the sealing plug.

[0016] Furthermore, the sealing plug is hollow, and a blocking member is provided at the outer end of the sealing plug. A shoulder is provided in the docking member, and the docking member stops moving outward when the shoulder abuts against the blocking member. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of the closed needle tube in an embodiment of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure for opening the syringe in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram showing the connection between the sealing plug and the ink guide core in an embodiment of this utility model;

[0021] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0022] Reference numerals: tube body 100, needle tube 110, cap 200, clearance hole 210, sealing ring 220, sealing plug 300, hollow channel 301, blocking component 302, plug 310, screw connection 320, mating component 400, shoulder 401, fishing line 410. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0025] like Figure 1-4 As shown, this embodiment provides a pneumatic marking ink tube, including a tube body 100, a needle tube 110, a cap 200, a sealing plug 300, and an ink guide core. The tube body 100 has a receiving cavity for containing ink. The needle tube 110 is disposed at one end of the tube body 100 and communicates with the receiving cavity. The tube body 100 is generally cylindrical, and the end of the tube body 100 connected to the needle tube 110 is in a contracted state. That is, the outer diameter of the tube body 100 gradually contracts from a certain distance from the end connected to the needle tube 110 until it contracts to its minimum outer diameter at the position connected to the needle tube 110. The minimum outer diameter of the tube body 100 is larger than the outer diameter of the needle tube 110 to ensure that the needle tube 110 can be embedded in the tube body 100, thereby enabling communication between the tube body 100 and the receiving cavity. The cap 200 is assembled onto the tube body 100 and seals the receiving cavity. The cap 200 seals the end of the tube body 100 away from the needle tube 110. That is, the end of the tube body 100 away from the needle tube 110 is an open end, which is convenient for filling ink. The sealing plug 300 includes an axially connected adjusting section and a plug 310. The plug 310 is used to isolate the fluid communication between the receiving cavity and the needle tube 110. The adjusting section is detachably connected to the cap 200 and can reciprocate along the axial direction of the cap 200 to change the position of the plug 310. The ink guide core includes a docking part 400 and a fishing line 410. One end of the fishing line 410 is fixed to the docking part 400. The ink guide core passes through both ends of the sealing plug 300 and can reciprocate relative to the sealing plug 300. The other end of the fishing line 410 passes through the needle tube 110.

[0026] The sealing plug 300 opens or closes the fluid channel between the syringe 110 and the receiving cavity through axial movement, and the ink tube enters the usage state after the fluid channel is opened. The sealing plug 300 can stably stay in the moved position to ensure the smooth progress of subsequent dotting operations.

[0027] In some embodiments, the outer periphery of the cap 200 is tightly sealed to the pipe body 100, and the end of the cap 200 is provided with a flange that abuts against the end of the pipe body 100. A clearance hole 210 is provided in the center of the cap 200 for the sealing plug 300 to pass through. The outer periphery of the cap 200 can be press-fitted, glued, or welded to the inner wall of the pipe body 100 to ensure that the cap 200 can seal the pipe body 100. The clearance hole 210 and the sealing plug 300 are movably and sealingly connected.

[0028] In some embodiments, the inner wall of the relief hole 210 is threaded, and the adjusting section includes a threaded portion 320 that is threaded into the relief hole 210 and an operating portion located outside the sealing plug 300. Specifically, the sealing plug 300 is generally a long rod, with the plug 310 fixed to the first end of the long rod and the adjusting section located at the second end of the long rod. The diameter of the threaded portion 320 is larger than that of the long rod, so that when the sealing plug 300 passes through the relief hole 210 of the cap 200, only the threaded portion 320 contacts the relief hole 210. The operating portion does not extend into the relief hole 210. The operating portion is mainly used for hand gripping or docking with tools. By rotating the operating portion, the entire sealing plug 300 is rotated, especially the threaded portion 320, causing the threaded portion 320 to change its position axially in the relief hole 210. When the screw connection 320 is relatively close to the outer side of the plug 300, the plug 310 separates from the inner wall of the tube 100, allowing the ink in the receiving cavity to enter the needle tube 110.

[0029] Furthermore, to enhance the sealing performance of the plug 300 and the cap 200, a sealing ring 220 is arranged on the inner end face of the cap 200 at a position corresponding to the clearance hole 210. The inner edge of the sealing ring 220 is in close contact with the plug 300. The plug 300 can rotate normally relative to the sealing ring 220 without losing its sealing performance.

[0030] In some embodiments, at least a portion of the docking member 400 is disposed within the operating section to ensure that the docking member 400 does not detach from the sealing plug 300. The sealing plug 300 is hollow, meaning it has a hollow channel 301 inside to facilitate the passage of the ink guide core. A blocking member 302 is provided at the outer end of the sealing plug 300, extending radially from the edge of the hollow channel 301 of the sealing plug 300 towards the center. The docking member 400 has a shoulder 401, which prevents the docking member 400 from moving further outward when the shoulder 401 abuts against the blocking member 302.

[0031] In some embodiments, the thread has two segments and is discontinuous, with the thread protruding from the inner wall of the clearance hole 210. The discontinuous thread reduces the friction of the threaded portion 320 during movement. Specifically, the first segment of the thread is located near the inner end of the cap 200, and the threaded portion 320 is in the first segment of the thread when the plug 310 is in the plugged needle tube 110 state. The second segment of the thread is located near the outer end of the cap 200, and the threaded portion 320 is in the second segment of the thread when the plug 310 is in the open state. The smooth surface between the first and second segments of the thread allows the threaded portion 320 to move quickly and linearly, resulting in faster adjustment speed.

[0032] In the description of this application, it should be understood that the terminology used is for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0033] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A gas dynamic marking ink tube, characterized in that include: The tube body has a cavity for holding ink; A needle is disposed at one end of the tube body and communicates with the receiving cavity; The cap is fitted onto the tube body and seals the receiving cavity; The sealing plug includes an axially connected adjusting section and a plug, the plug being used to isolate the fluid communication between the receiving cavity and the syringe, the adjusting section being detachably connected to the sealing cap and being able to reciprocate along the axial direction of the sealing cap to change the position of the plug; The ink guide core includes a connector and a fishing line. One end of the fishing line is fixed to the connector. The ink guide core passes through both ends of the sealing plug and can reciprocate relative to the sealing plug. The other end of the fishing line passes through the needle tube.

2. A gas dynamic marking ink tube according to claim 1, characterized in that The outer periphery of the cap is tightly sealed to the pipe body, and the end of the cap is provided with a flange that abuts against the end of the pipe body. The center of the cap is provided with a clearance hole for the sealing plug to pass through.

3. A gas dynamic marking ink tube according to claim 2, characterized in that The inner wall of the relief hole is provided with threads, and the adjustment section includes a threaded part that is screwed into the relief hole and an operating part located outside the sealing plug.

4. A gas dynamic marking ink tube according to claim 3, characterized in that The thread has two discontinuous segments, and the threads of the thread protrude from the inner wall of the relief hole.

5. A gas dynamic marking ink tube according to claim 2, characterized in that A sealing ring is arranged on the inner end face of the cover corresponding to the position of the relief hole, and the inner edge of the sealing ring is in close contact with the sealing plug.

6. A gas dynamic marking ink tube according to claim 1, characterized in that The sealing plug is hollow, and a blocking member is provided at the outer end of the sealing plug. The connecting member is provided with a shoulder. The connecting member moves outward and stops when the shoulder abuts against the blocking member.

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