Dispensing needle convenient for ending dispensing and dispensing system
By designing a dispensing needle that facilitates the finishing of dispensing, the problems of stringing and residual glue head after dispensing are solved, achieving efficient utilization of glue and improving production efficiency.
Patent Information
- Application Number
- CN202422892120.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing dispensing needles are prone to stringing and residual glue at the tail end after dispensing, resulting in glue waste, increased production costs and reduced production efficiency, and may also affect product quality.
Design a dispensing needle that facilitates dispensing completion. By setting notch structures on both sides of the needle tip and combining it with a dispensing pull-back process, residual glue can be avoided. The dispensing needle is made of metal or polymer materials and is equipped with different inner diameters to adapt to different glue properties and requirements.
It effectively avoids residual glue after dispensing, reduces glue consumption, reduces downtime for manual cleaning, lowers production costs, and improves production efficiency.
Smart Images
Figure CN223556386U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the dispensing machine technical field especially, relate to a kind of dispensing needle and dispensing system for dispensing tail end conveniently. BACKGROUND
[0002] Dispensing process is very widely used in product manufacturing process, dispensing machine main function is to glue fluid accurately distributed to specified location, and dispensing needle is the direct executor to realize this function;In many high-precision industrial production scenarios, such as electronic chip packaging, precision instrument manufacturing etc., the dosage and coating position precision requirement of glue is extremely high, and dispensing needle can control the dosage of glue in very accurate range by its precise design, to ensure the realization of moisture-proof, moisture-proof, heat-conducting etc., to protect these sensitive devices.
[0003] In prior art, dispensing needle forms wire drawing at needle tip after dispensing, not only affects dispensing effect, but also can lead to uneven distribution of glue on workpiece surface;At the same time, tail residual glue head phenomenon often occurs, which will bring many disadvantages: on the one hand, residual glue head will lead to glue waste, thereby increasing production cost;On the other hand, manual cleaning of residual glue head needs to be stopped, which reduces production efficiency;In addition, residual glue head can also be mixed into subsequent dispensing process, which affects dispensing quality and product performance, such as in electronic chip packaging, residual glue head mixed into chip can cause short circuit and other serious problems. SUMMARY
[0004] Therefore, in order to solve the above problems, the purpose of the utility model is to provide a dispensing needle for dispensing tail end conveniently, comprising:
[0005] The needle body comprises a needle body and a needle head connected to each other, a first notch and a second notch are formed in the lower end of the needle head in a concave manner along the axial direction, the first notch and the second notch are arranged in a facing manner along a first direction, the lower end of the needle head is separated by the first notch and the second notch to form a first wall portion and a second wall portion, the first wall portion and the second wall portion are arranged in a facing manner along a second direction, the first direction and the second direction are arranged perpendicularly, and the first direction and the second direction are arranged perpendicularly to the axis of the needle body.
[0006] In another preferred embodiment, the inner contour of the first notch is larger than the inner contour of the second notch.
[0007] In another preferred embodiment, the first concave distance along the axial direction of the needle head is greater than the second concave distance along the axial direction of the needle head.
[0008] In another preferred embodiment, the first wall portion is formed with a flat surface away from one end of the needle body and the second wall portion is formed with a flat surface away from one end of the needle body.
[0009] In another preferred embodiment, the first cut surface is formed on an outer edge of the first notch and the second cut surface is formed on an outer edge of the second notch, and the first cut surface and the second cut surface are both inclined relative to an axial direction of the needle body.
[0010] In another preferred embodiment, the first cut surface and the second cut surface are both V-shaped.
[0011] In another preferred embodiment, an inner contour of the first notch is V-shaped.
[0012] In another preferred embodiment, an inner contour of the second notch is V-shaped.
[0013] In another preferred embodiment, the first cut surface is closer to the axial line of the needle body relative to the end of the first cut surface away from the needle body, and the second cut surface is closer to the axial line of the needle body relative to the end of the second cut surface away from the needle body.
[0014] The utility model also aims at providing a point gum system which comprises the point gum needle convenient for point gum finishing of any one of the above-mentioned utility models, and further comprises a gum output device and a gum output pipe, the gum output pipe is connected to the output end of the gum output device, the upper end of the needle body is formed with a needle seat outward in the radial direction, and the gum output pipe is arranged in the needle seat.
[0015] Compared with the prior art, the utility model has the following positive effects:
[0016] Through the application of the utility model, the point gum needle and the point gum system convenient for point gum finishing are provided, the two sides of the needle head structure of the point gum needle are processed to form the corresponding notch structure, and the point gum pull-back process is combined to avoid the problem of residual glue at the tail after point gumming, reduce the consumption of glue, reduce the time for manual cleaning during shutdown, and thus achieve the purposes of reducing production cost and improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Fig. 1 It is a whole structure diagram of the point gum needle convenient for point gum finishing of the utility model;
[0018] Fig. 2 It is a needle head enlarged view of the point gum needle convenient for point gum finishing of the utility model;
[0019] Fig. 3This is a cross-sectional view of the adhesive strip of a dispensing needle that facilitates dispensing termination according to this utility model.
[0020] In the attached image:
[0021] 100. Needle body; 110. Needle shaft; 111. Needle seat; 120. Needle tip; 121. First notch; 122. Second notch; 123. First cut surface; 124. Second cut surface; 125. First wall portion; 126. Second wall portion; 200. Adhesive strip. Detailed Implementation
[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".
[0025] like Figs. 1-3 The diagram illustrates a preferred embodiment of a dispensing needle for facilitating dispensing completion, comprising: a needle body 100, which includes a needle shaft 110 and a needle tip 120 connected to each other. The lower end of the needle tip 120 has a first notch 121 and a second notch 122 formed concavely along the axial direction. The first notch 121 and the second notch 122 are aligned facing each other along a first direction. The lower end of the needle tip 120 is separated by the first notch 121 and the second notch 122 to form a first wall portion 125 and a second wall portion 126, which are aligned facing each other along a second direction. The first and second directions are perpendicular to each other, and both directions are perpendicular to the axis of the needle body 100. Furthermore, the opening of the first notch 121 and the second notch 122 allows the dispensing needle to cut and smooth out residual adhesive at the end of the adhesive strip 200 after the dispensing process is completed.
[0026] Furthermore, as a preferred embodiment, the aforementioned first direction is as follows: Fig. 1 The second direction mentioned above is as follows: (The text abruptly ends here, likely due to an incomplete sentence or a formatting error.)Fig. 1 a vertical direction of the middle paper.
[0027] Further, as a preferred embodiment, the inner contour of the first notch 121 is larger than the inner contour of the second notch 122.
[0028] Further, as a preferred embodiment, the first notch 121 and the second notch 122 are preferably formed by cutting or grinding equipment on the complete needle 120.
[0029] Further, as a preferred embodiment, the first inner recess distance of the first notch 121 along the axial direction of the needle 120 is larger than the second inner recess distance of the second notch 122 along the axial direction of the needle 120.
[0030] Further, as a preferred embodiment, the inner recess distance is the extension distance from the end of the needle 120 farthest away from the needle body 110 to the position of the inner edge of the corresponding notch closest to the needle body 110 along the axial direction of the needle body 100.
[0031] Further, as a preferred embodiment, one end of the first wall portion 125 and one end of the second wall portion 126 are each formed with a flat surface.
[0032] Further, as a preferred embodiment, the flat surfaces are each arranged in an arc shape.
[0033] Further, as a preferred embodiment, the first wall portion 125 and the second wall portion 126 are used to limit the shape of the adhesive strip 200 during dispensing. Further, the shape of the adhesive strip 200 in the vertical direction is preferably a taper shape.
[0034] Further, as a preferred embodiment, the outer edge of the first notch 121 is formed with a first cutting surface 123, and the outer edge of the second notch 122 is formed with a second cutting surface 124, and the first cutting surface 123 and the second cutting surface 124 are each arranged obliquely relative to the axial direction of the needle body 100.
[0035] Further, as a preferred embodiment, the first cutting surface 123 and the second cutting surface 124 are each arranged in a V shape.
[0036] Further, as a preferred embodiment, the inner contour of the first notch 121 is arranged in a V shape.
[0037] Further, as a preferred embodiment, the inner contour of the second notch 122 is arranged in a V shape.
[0038] Further, as a preferred embodiment, the corners of the V shape are each arranged smoothly.
[0039] Further, as a preferred embodiment, the first cut surface 123 is closer to the axis of the needle body 110 at the end of the needle body 110 away from the end of the needle body 110 closer to the axis of the needle body 110, and the second cut surface 124 is closer to the axis of the needle body 110 at the end of the needle body 110 away from the end of the needle body 110 closer to the axis of the needle body 110.
[0040] The above merely describes preferred embodiments of the present application, and is not intended to limit the embodiments and the protection scope of the present application.
[0041] The present application has the following embodiments based on the above:
[0042] The present application also aims to provide a dispensing system comprising the dispensing needle for facilitating dispensing and finishing according to any one of the above, and further comprising a glue dispensing device and a glue dispensing pipe, the glue dispensing pipe being connected to the output end of the glue dispensing device, and the upper end of the needle body 110 being radially outwardly convex to form a needle seat 111, and the glue dispensing pipe being arranged in the needle seat.
[0043] In a further embodiment of the present application, the dispensing needle is preferably made of metal or high polymer material, and a plurality of dispensing needles with different inner diameters can be configured to be replaced according to the characteristics of the glue and the dispensing amount required.
[0044] The dispensing needle for facilitating dispensing and finishing according to the present application has the following operation steps:
[0045] The operator starts the dispensing system to drive the dispensing needle to dispense glue on the object according to the route; the first notch 121 allows the glue to flow out stably, the first wall 125 and the second wall 126 limit the shape of the glue strip 200, and the second notch 122 smoothes the upper end of the glue strip 200 to facilitate ensuring the sealing performance after the subsequent object is connected; when the dispensing is finished, the dispensing needle is further pulled back to cut off the glue strip 200 by the second notch 122 of the dispensing needle, so that the tail of the glue strip 200 becomes smooth.
[0046] The above merely describes preferred embodiments of the present application, and is not intended to limit the embodiments and the protection scope of the present application. It should be realized by those skilled in the art that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.
Claims
1. A dispensing needle for easy dispensing termination, characterized in that, include: The needle body includes a needle shaft and a needle tip connected to each other. The lower end of the needle tip is concave inward along the axial direction and has a first notch and a second notch. The first notch and the second notch are arranged opposite each other along a first direction. The lower end of the needle tip is separated by the first notch and the second notch to form a first wall portion and a second wall portion. The first wall portion and the second wall portion are arranged opposite each other along a second direction. The first direction and the second direction are perpendicular to each other. Both the first direction and the second direction are perpendicular to the axis of the needle body.
2. The dispensing needle for facilitating dispensing termination according to claim 1, characterized in that, The inner contour of the first notch is larger than the inner contour of the second notch.
3. The dispensing needle for facilitating dispensing termination according to claim 2, characterized in that, The first concave distance of the first notch along the axial direction of the needle is greater than the second concave distance of the second notch along the axial direction of the needle.
4. The dispensing needle for facilitating dispensing termination according to claim 1, characterized in that, Both the end of the first wall portion away from the needle body and the end of the second wall portion away from the needle body form a plane.
5. The dispensing needle for facilitating dispensing termination according to claim 1, characterized in that, The outer edge of the first notch has a first tangential surface, and the outer edge of the second notch has a second tangential surface. Both the first tangential surface and the second tangential surface are inclined relative to the axial direction of the needle body.
6. The dispensing needle for facilitating dispensing termination according to claim 5, characterized in that, Both the first and second cut surfaces are V-shaped.
7. The dispensing needle for facilitating dispensing termination according to claim 2, characterized in that, The inner contour of the first notch is set in a V-shape.
8. The dispensing needle for facilitating dispensing termination according to claim 2, characterized in that, The inner contour of the second notch is set in a V-shape.
9. The dispensing needle for facilitating dispensing termination according to claim 5, characterized in that, The end of the first cut surface away from the needle body is closer to the axis of the needle body relative to the end of the first cut surface near the needle body, and the end of the second cut surface away from the needle body is closer to the axis of the needle body relative to the end of the second cut surface near the needle body.
10. A dispensing system comprising a dispensing needle as described in any one of claims 1 to 9 for facilitating dispensing termination, characterized in that, Also includes: The dispensing device and dispensing tube are provided. The dispensing tube is connected to the output end of the dispensing device. The upper end of the needle body protrudes radially to form a needle seat. The dispensing tube extends into the needle seat.