Dispensing needle head capable of preventing product from being scratched

Abstract

The embodiment of the utility model belongs to the technical field of dispensing needles. The utility model further relates to a dispensing needle head capable of preventing the product from being scratched, the dispensing needle head comprises a dispensing needle head main body, and the protective rubber sleeve is arranged on the outer surface of the dispensing needle head main body and used for isolating the dispensing needle head main body from the dispensed product. The protective rubber sleeve is arranged on the outer surface of the dispensing needle head body and can effectively isolate direct contact between the dispensing needle head body and the TP surface, and even if the dispensing needle head body shifts or shakes in the dispensing process, products or components cannot be scratched, so that the reject ratio of the products is remarkably reduced, and the production efficiency is improved. The protective rubber sleeve can also play a certain role in protecting the dispensing needle head body, needle head abrasion and damage caused by friction and collision are reduced, and the service life of the needle head is prolonged; due to the existence of the protective rubber sleeve, the dispensing process is more stable, and fluctuation caused by contact between the dispensing needle head main body and the surface of a product is not easy to generate.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing needles, and more specifically, to a dispensing needle for preventing product scratching. Background Art

[0002] In the electronic product manufacturing industry, especially in the bonding process of FPC (flexible printed circuit board) and TP (touch panel), the dispensing technology plays a crucial role. The dispensing process not only needs to ensure that the glue can be accurately applied to the specified position to form a stable connection, but also requires the dispensing effect to be delicate, uniform and thin to ensure the overall aesthetics and functionality of the product. To meet these requirements, it has become an inevitable choice to select a dispensing needle with a small diameter (D≤0.6mm) and fine glue output; due to its excellent corrosion resistance, high hardness and good mechanical properties, stainless steel has become the preferred material for manufacturing dispensing needles. On the production line of FPC bonding and TP product dispensing, stainless steel needles can effectively resist the erosion of glue, solvents and other possible corrosive substances in the environment, thus maintaining their stability and service life. In addition, stainless steel needles also have high rigidity and can maintain a stable glue output and accuracy during high-speed and high-precision dispensing processes;

[0003] However, despite the many advantages of stainless steel needles, there is a problem that cannot be ignored in the actual production process: that is, if the needle accidentally touches the TP surface during the dispensing process, it is very easy to scratch the product due to its sharp edge. This kind of scratching will not only affect the appearance quality of the product, but may also cause the touch function of the TP to be damaged, thus affecting the overall performance and user experience of the product. The scratching problem is often difficult to completely avoid during the production process because various factors such as the movement trajectory of the dispenser, the fluidity of the glue, and the skill level of the operator may affect the contact situation between the needle and the TP surface. Therefore, we make improvements to this and propose a dispensing needle for preventing product scratching. Summary of the Utility Model

[0004] The technical problem to be solved by the embodiments of the utility model is the problem that if the needle accidentally touches the TP surface during the dispensing process, it is very easy to scratch the product due to its sharp edge.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A dispensing needle for preventing product scratching, comprising: a dispensing needle body, and a protective rubber sleeve is arranged on the outer surface of the dispensing needle body, and the protective rubber sleeve is used to isolate the dispensing needle body from the product to be dispensed.

[0007] As an improved mode of the utility model, the protective rubber sleeve is fixedly sleeved on the outer surface of the dispensing needle body.

[0008] As an improved mode of the utility model, the protective rubber sleeve is elastically arranged, and the protective rubber sleeve is detachably sleeved on the outer surface of the dispensing needle body under the action of its own elastic force.

[0009] As an improved mode of the utility model, the protective rubber sleeve is detachably arranged on the outer surface of the dispensing needle body, and a fixing structure is arranged between the protective rubber sleeve and the dispensing needle body.

[0010] As an improved mode of the utility model, the fixing structure is a first fixing component, and the first fixing component is arranged on the outer surface of the protective rubber sleeve.

[0011] As an improved mode of the utility model, the first fixing component includes a first clamping ring and a second clamping ring fixedly connected to the first clamping ring. The second clamping ring and the first clamping ring are both arranged on the outer surface of the protective rubber sleeve, and a fastening member is arranged between one ends of the first clamping ring and the second clamping ring.

[0012] As an improved mode of the utility model, the fastening member includes a convex rib fixedly installed at one end of the second clamping ring. A first hook is fixedly connected to the convex rib, and a first hook is fixedly connected to the first clamping ring. The first hook and the second hook are fastened to each other.

[0013] As an improved mode of the utility model, a plurality of convex strips are fixedly installed on the inner wall of the first clamping ring, and a plurality of limiting grooves are formed on the outer surface of the protective rubber sleeve. The inner wall of the limiting groove is inserted into the convex strip.

[0014] As an improved mode of the utility model, the fixing structure is a second fixing component, and the second fixing component is arranged on the outer surface of the protective rubber sleeve.

[0015] As an improved mode of the utility model, the second fixing component includes a third clamping ring sleeved on the outer surface of the protective rubber sleeve. A shrinkage opening is formed on one side of the third clamping ring, and two insertion holes are also formed on the third clamping ring. The inner walls of the two insertion holes are both inserted and connected with insertion rods, and a connecting rod is fixedly connected between the two insertion rods.

[0016] Compared with the prior art, the embodiments of the utility model mainly have the following beneficial effects:

[0017] To solve the problem that in the prior art, if the needle accidentally touches the surface of the TP during the dispensing process, it is very easy to scratch the product due to its sharp edge. In this application, a protective rubber sleeve is provided on the outer surface of the dispensing needle body. The protective rubber sleeve can effectively isolate the direct contact between the dispensing needle body and the TP surface. Even if the dispensing needle body deviates or shakes during the dispensing process, it will not scratch the product or components, thus significantly reducing the defective rate of the product. The protective rubber sleeve can also play a certain protective role for the dispensing needle body, reducing the wear and damage of the needle caused by friction and collision, and extending the service life of the needle; due to the existence of the protective rubber sleeve, the dispensing process is more stable and is not prone to fluctuations caused by the contact between the dispensing needle body and the product surface, which helps to achieve a finer, more uniform and thinner dispensing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a schematic structural view of the dispensing needle for preventing product scratching provided by this application;

[0019] Figure 2 FIG. is a three-dimensional structural view of the dispensing needle for preventing product scratching provided by this application;

[0020] Figure 3 FIG. is the dispensing needle for preventing product scratching provided by this application Figure 2 bottom view structural schematic;

[0021] Figure 4 FIG. is a schematic view of the limiting groove and the first fixing component of the dispensing needle for preventing product scratching provided by this application;

[0022] Figure 5 FIG. is a structural view of the first fixing component of the dispensing needle for preventing product scratching provided by this application;

[0023] Figure 6 FIG. is a structural view of the protective rubber sleeve and the second fixing component of the dispensing needle for preventing product scratching provided by this application;

[0024] Figure 7 FIG. is a structural view of the second fixing component of the dispensing needle for preventing product scratching provided by this application.

[0025] Reference numerals in the figures:

[0026] 1. Dispensing needle body; 2. Protective rubber sleeve; 3. Limiting groove; 4. First fixing component; 401. First snap ring; 402. Second snap ring; 403. Convex rib; 404. First hook; 405. Second hook; 406. Convex strip; 5. Second fixing component; 501. Third snap ring; 502. Shrinkage opening; 503. Insertion hole; 504. Insertion rod; 505. Connecting rod. DETAILED DESCRIPTION OF THE INVENTION

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The mention of "embodiment" in this article means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of this utility model. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] As recorded in the background art, although stainless steel needles have many advantages, there is a problem that cannot be ignored in the actual production process: that is, if the needle accidentally touches the surface of the TP during the dispensing process, it is very easy to scratch the product due to its sharp edge. Such scratches will not only affect the appearance quality of the product, but may also cause damage to the touch function of the TP, thereby affecting the overall performance and user experience of the product. The scratching problem is often difficult to completely avoid during the production process because various factors such as the movement trajectory of the dispenser, the fluidity of the glue, and the skill level of the operator may affect the contact between the needle and the surface of the TP.

[0029] To solve this technical problem, this utility model provides a dispensing needle that prevents scratching of the product.

[0030] Specifically, please refer to Figures 1-3 , the dispensing needle that prevents scratching of the product specifically includes:

[0031] A dispensing needle body 1, and a protective rubber sleeve 2 is provided on the outer surface of the dispensing needle body 1. The protective rubber sleeve 2 is used to isolate the dispensing needle body 1 from the product to be dispensed.

[0032] For the dispensing needle that prevents scratching of the product provided by this utility model, in this application, a protective rubber sleeve 2 is provided on the outer surface of the dispensing needle body 1. The protective rubber sleeve 2 can effectively isolate the direct contact between the dispensing needle body 1 and the surface of the TP. Even if the dispensing needle body 1 deviates or shakes during the dispensing process, it will not scratch the product or components, thus significantly reducing the defective rate of the product. The protective rubber sleeve 2 can also play a certain protective role for the dispensing needle body 1, reducing the wear and damage of the needle caused by friction and collision, and extending the service life of the needle; due to the presence of the protective rubber sleeve 2, the dispensing process is more stable and is not easily affected by the contact between the dispensing needle body 1 and the product surface, thus helping to achieve a finer, more uniform and thinner dispensing effect.

[0033] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0034] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] Embodiment 1 of the dispensing needle head of the present utility model for preventing product scratching

[0037] Please refer to Figures 1-3 , the dispensing needle head of the present utility model for preventing product scratching includes: a dispensing needle head body 1, and a protective rubber sleeve 2 is provided on the outer surface of the dispensing needle head body 1. The protective rubber sleeve 2 is used to isolate the dispensing needle head body 1 from the product to be dispensed. In this application, by providing the protective rubber sleeve 2 on the outer surface of the dispensing needle head body 1, the protective rubber sleeve 2 can effectively isolate the direct contact between the dispensing needle head body 1 and the TP surface. Even if the dispensing needle head body 1 deviates or shakes during the dispensing process, it will not scratch the product or components, thereby significantly reducing the product defect rate. The protective rubber sleeve 2 can also play a certain protective role for the dispensing needle head body 1, reducing the wear and damage of the needle head caused by friction and collision, and extending the service life of the needle head; due to the presence of the protective rubber sleeve 2, the dispensing process is more stable and is not likely to generate fluctuations due to the contact between the dispensing needle head body 1 and the product surface, thereby helping to achieve a finer, more uniform and thinner dispensing effect.

[0038] For easy understanding, with reference to Figure 1 , in this application, A is used to represent the touch panel, B is used to represent the FPC, and C is used to represent the UV glue, and they are marked in the figure.

[0039] Embodiment 2 of the dispensing needle head of the present utility model for preventing product scratching

[0040] The dispensing needle tip of the present utility model for preventing product scratching. Further, the protective rubber sleeve 2 is fixedly sleeved on the outer surface of the dispensing needle tip body 1. The protective rubber sleeve 2 is fixed by means of glue bonding. Fixing the protective rubber sleeve 2 fixedly sleeved on the outer surface of the dispensing needle tip body 1 and using the glue bonding method can ensure that the protective rubber sleeve 2 will not easily fall off or shift during use. This is because the glue has strong bonding performance, which can make the protective rubber sleeve 2 closely combined with the dispensing needle tip body 1, thereby ensuring that the protective rubber sleeve 2 can always effectively isolate the dispensing needle tip body 1 from the product to be dispensed during the dispensing process, avoiding the scratching risk caused by the falling off or shifting of the protective rubber sleeve 2. At the same time, this fixing method can also make the connection between the protective rubber sleeve 2 and the dispensing needle tip body 1 more firm, enhancing the structural stability of the entire dispensing needle tip and helping to improve the accuracy and precision of dispensing.

[0041] Embodiment 3 of the dispensing needle tip of the present utility model for preventing product scratching

[0042] The dispensing needle tip of the present utility model for preventing product scratching. Further, the protective rubber sleeve 2 is elastically arranged, and the protective rubber sleeve 2 is detachably sleeved on the outer surface of the dispensing needle tip body 1 under the action of its own elastic force. The protective rubber sleeve 2 can be made of elastic rubber, which is convenient for replacing the protective rubber sleeve 2 after it is damaged. The elastic arrangement enables the protective rubber sleeve 2 to better adapt to dispensing needle tip bodies 1 of different sizes and shapes, increasing its versatility. Because elastic materials can stretch and contract within a certain range, they can thus closely fit on needles of different specifications. Secondly, the detachable design is convenient for replacing the protective rubber sleeve 2 after it is damaged. This is because during long-term use, the protective rubber sleeve 2 may lose its protective effect due to wear, aging or other reasons. The detachable feature enables timely replacement of a new protective rubber sleeve 2 to ensure that the dispensing needle tip 1 always has good protective performance. In addition, using elastic rubber to make the protective rubber sleeve 2 not only has good elasticity and wear resistance, but also has the advantages of low cost and easy processing, which helps to reduce production costs and maintenance costs.

[0043] Embodiment 4 of the dispensing needle tip of the present utility model for preventing product scratching

[0044] The dispensing needle tip of the present utility model for preventing product scratching. Further, as Figure 4 and Figure 5 shown, the protective rubber sleeve 2 is detachably arranged on the outer surface of the dispensing needle tip body 1, and a fixing structure is provided between the protective rubber sleeve 2 and the dispensing needle tip body 1 for fixing the protective rubber sleeve 2.

[0045] Further, as Figure 4 and Figure 5As shown, the fixing structure is a first fixing component 4 , which is arranged on the outer surface of the protective rubber sleeve 2 , and the protective rubber sleeve 2 can be bound to the outer surface of the dispensing needle body 1 through the first fixing component 4 .

[0046] Further, such as Figure 4 and Figure 5 As shown, the first fixing component 4 includes a first snap ring 401 and a second snap ring 402 fixedly connected to the first snap ring 401. The second snap ring 402 and the first snap ring 401 are both arranged on the outer surface of the protective rubber sleeve 2, and a fastening piece is arranged between one end of the first snap ring 401 and the second snap ring 402. The mutual cooperation between the fastening piece, the first snap ring 401 and the second snap ring 402 can achieve the limitation of the protective rubber sleeve 2.

[0047] Further, such as Figure 4 and Figure 5 As shown, the fastening part includes a ridge 403 fixedly installed on one end of the second snap ring 402, the ridge 403 is fixedly connected to a first hook 404, the first snap ring 401 is fixedly connected to a first hook 404, the first hook 404 and the second hook 405 are fastened to each other, and the ridge 403 is bent outward to separate the first hook 404 and the second hook 405 to release the limiting effect of the first fixing component 4 on the protective rubber sleeve 2, and the protective rubber sleeve 2 can be removed for replacement.

[0048] Further, such as Figure 4 and Figure 5 As shown, a plurality of convex strips 406 are fixedly mounted on the inner wall of the first clamping ring 401, and a plurality of limiting grooves 3 are provided on the outer surface of the protective rubber sleeve 2. The inner wall of the limiting groove 3 is plugged with the convex strips 406. The mutual cooperation between the limiting groove 3 and the convex strips 406 can limit the connection between the protective rubber sleeve 2 and the first fixing component 4.

[0049] The protective rubber sleeve 2 is detachable and fixed by the first fixing component 4, which brings significant benefits. The detachable design makes it easy and quick to operate when the protective rubber sleeve 2 is worn, damaged or needs to be replaced with a different specification, thereby improving maintenance efficiency. The first fixing component 4 adopts a structure of a clamping ring and a buckle, which can provide a stable fixing force to ensure that the protective rubber sleeve 2 will not loosen or fall off during the dispensing process. This is because the engagement of the buckle can form a reliable connection. At the same time, the cooperation between the convex strip 406 and the limiting groove 3 further enhances the stability of the fixation and limits the axial movement and rotation of the protective rubber sleeve 2. When the protective rubber sleeve 2 needs to be replaced, the fixation can be easily released by bending the convex ridge 403 outward. The operation is simple and convenient. This design not only ensures the stability and reliability of the dispensing process, but also greatly reduces maintenance costs and time, and improves production efficiency.

[0050] Embodiment V of the dispensing needle of the present utility model for preventing product scratching

[0051] Furthermore, for the dispensing needle of the present utility model for preventing product scratching, as Figure 6 and Figure 7 shown, the protective rubber sleeve 2 is detachably arranged on the outer surface of the dispensing needle body 1, and a fixing structure is arranged between the protective rubber sleeve 2 and the dispensing needle body 1.

[0052] Furthermore, as Figure 6 and Figure 7 shown, the fixing structure is the second fixing component 5. The second fixing component 5 is arranged on the outer surface of the protective rubber sleeve 2. Through the second fixing component 5, the protective rubber sleeve 2 can be bound to the outer surface of the dispensing needle body 1.

[0053] Furthermore, as Figure 6 and Figure 7 shown, the second fixing component 5 includes a third snap ring 501 sleeved on the outer surface of the protective rubber sleeve 2. A shrinkage opening 502 is formed on one side of the third snap ring 501. Two insertion holes 503 are also formed on the third snap ring 501. The inner walls of the two insertion holes 503 are inserted and connected with insertion rods 504. A connecting rod 505 is fixedly connected between the two insertion rods 504. The two insertion rods 504 are connected together through the connecting rod 505. After the insertion rods 504 are inserted into the insertion holes 503, the third snap ring 501 can clamp the protective rubber sleeve 2, thereby realizing the fixation of the protective rubber sleeve 2. When the insertion rods 504 are pulled to separate the insertion rods 504 from the insertion holes 503, the fixation of the second fixing component 5 on the protective rubber sleeve 2 can be released. At this time, the protective rubber sleeve 2 can be removed for replacement;

[0054] The protective rubber sleeve 2 is detachably arranged and fixed through the second fixing component 5. The second fixing component 5 adopts a unique structural design. Through the coordinated action of the third snap ring 501, the shrinkage opening 502, the insertion holes 503, the insertion rods 504 and the connecting rod 505, the firm fixation of the protective rubber sleeve 2 can be realized. The shrinkage opening 502 enables the third snap ring 501 to have a certain elastic deformation ability, which can better adapt to the size of the protective rubber sleeve 2 and provide a uniform clamping force. The insertion structure of the insertion rods 504 and the insertion holes 503 is simple and reliable, easy to operate, and can quickly complete the fixing and disassembling actions. When the protective rubber sleeve 2 needs to be replaced, only the insertion rods 504 need to be pulled to release the fixation, which greatly shortens the maintenance time and improves the production efficiency.

[0055] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all of them. The accompanying drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields shall be within the scope of the patent protection of the present utility model by the same token.

Claims

1. A dispensing needle for preventing product scratching, characterized in that, Comprising: A dispensing needle body (1), on the outer surface of which a protective rubber sleeve (2) is provided, and the protective rubber sleeve (2) is used to isolate the dispensing needle body (1) from the product to be dispensed.

2. The dispensing needle for preventing product scratches according to claim 1, characterized in that, The protective rubber sleeve (2) is fixedly sleeved on the outer surface of the dispensing needle body (1).

3. The dispensing needle for preventing product scratches according to claim 1, characterized in that, The protective rubber sleeve (2) is elastically arranged, and the protective rubber sleeve (2) is detachably sleeved on the outer surface of the dispensing needle body (1) under the action of its own elastic force.

4. The dispensing needle for preventing product scratching according to claim 1, wherein The protective rubber sleeve (2) is detachably arranged on the outer surface of the dispensing needle body (1), and a fixing structure is provided between the protective rubber sleeve (2) and the dispensing needle body (1).

5. The dispensing needle for preventing product scratching according to claim 4, characterized in that, The fixing structure is a first fixing component (4), and the first fixing component (4) is arranged on the outer surface of the protective rubber sleeve (2).

6. The dispensing needle for preventing product scratches according to claim 5, characterized in that, The first fixing component (4) includes a first clamping ring (401) and a second clamping ring (402) fixedly connected to the first clamping ring (401). The second clamping ring (402) and the first clamping ring (401) are both arranged on the outer surface of the protective rubber sleeve (2), and a fastening member is provided between one ends of the first clamping ring (401) and the second clamping ring (402).

7. The dispensing needle for preventing product scratches according to claim 6, wherein The fastening member includes a convex rib (403) fixedly installed at one end of the second clamping ring (402). A first hook (404) is fixedly connected to the convex rib (403). A first hook (404) is fixedly connected to the first clamping ring (401). The first hook (404) and the second hook (405) are fastened to each other.

8. The dispensing needle for preventing product scratches according to claim 7, characterized in that, A plurality of convex strips (406) are fixedly installed on the inner wall of the first clamping ring (401). A plurality of limiting grooves (3) are formed on the outer surface of the protective rubber sleeve (2). The inner wall of the limiting groove (3) is inserted into the convex strip (406).

9. The dispensing needle for preventing product scratching according to claim 4, wherein, The fixing structure is a second fixing component (5), and the second fixing component (5) is arranged on the outer surface of the protective rubber sleeve (2).

10. The dispensing needle for preventing product scratching according to claim 9, characterized in that, The second fixing component (5) includes a third clamping ring (501) sleeved on the outer surface of the protective rubber sleeve (2). A shrinkage opening (502) is formed on one side of the third clamping ring (501). Two insertion holes (503) are also formed on the third clamping ring (501). The inner walls of the two insertion holes (503) are inserted with insertion rods (504). A connecting rod (505) is fixedly connected between the two insertion rods (504).

Images