CN110833966A - Dispensing needle head, production method and dispensing machine with dispensing needle head - Google Patents
Dispensing needle head, production method and dispensing machine with dispensing needle head Download PDFInfo
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- CN110833966A CN110833966A CN201810928675.0A CN201810928675A CN110833966A CN 110833966 A CN110833966 A CN 110833966A CN 201810928675 A CN201810928675 A CN 201810928675A CN 110833966 A CN110833966 A CN 110833966A
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- Prior art keywords
- glue
- dispensing
- waterproof
- needle
- dispensing needle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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Abstract
The application provides a dispensing needle head, a production method and a dispensing machine with the dispensing needle head. When using this point to glue syringe needle to carry out some glue, when low viscosity glue flows from a point mouth of gluing, the surface of syringe needle can be glued at the point to low viscosity glue, trickling along the direction that flows against low viscosity glue, because the surface of syringe needle is glued to this point is provided with the water proof membrane, thereby very big shortening low viscosity glue trickling distance, can be with very big reduction climbing gluey phenomenon, thereby not only be convenient for generate the glue dropping liquid, also be convenient for control the size of glue dropping liquid.
Description
Technical Field
The application relates to the technical field of dispensing, in particular to a dispensing needle head, a production method and a dispensing machine with the dispensing needle head.
Background
A dispenser is a common production device in the electronics industry that is capable of very accurately dropping, coating and/or potting glue to a location; the dispensing needle is an important device in a dispenser, and the structure of the dispensing needle is generally shown in fig. 1, and the operation process of the dispenser is generally as follows: (1) providing a dispenser with a dispensing needle 3, wherein a glue inlet 311 of the dispensing needle 3 is communicated with a glue outlet device; (2) the glue dispenser moves the glue dispensing needle head 3 to a preset position; (3) the glue discharging device extrudes glue outwards, at this time, the flowing direction of the glue is as shown by the implementation arrow in fig. 1, the glue flows through the glue inlet 311, the glue outlet channel 31 and the glue discharging port 312 of the glue dispensing needle head, so that glue with a preset volume or a preset quality is extruded from the glue discharging port 312; (4) dropping, coating and/or potting the extruded glue to a preset position.
One common function of the dispenser is to drop low-viscosity glue (for example, lower than 3000cps) into the dispensing hole, as shown in fig. 1, at this time, in the dispensing needle 3, the low-viscosity glue flows from the dispensing port 311 to the dispensing port 312 (i.e., the direction of the solid arrow in fig. 1), as shown in fig. 2, when the low-viscosity glue flows out from the dispensing port 312, the low-viscosity glue flows along the direction from the dispensing port 312 to the dispensing port 311 (i.e., the direction of the dotted arrow in fig. 1), i.e., a glue climbing phenomenon occurs, and as a result, at this time, a glue droplet cannot be formed, so that the low-viscosity glue cannot be dropped into the dispensing hole; if the low-viscosity glue needs to be continuously extruded from the glue dispensing port 312 in order to form the glue drops, the size of the finally formed glue drops is large and is easily larger than the horizontal size of the glue dispensing hole, so that the low-viscosity glue drops are difficult to drop into the glue dispensing hole.
Therefore, how to design a dispensing needle head convenient for controlling the size of the dropping liquid of the low-viscosity glue becomes a problem to be solved urgently.
Disclosure of Invention
The application aims to provide a dispensing needle head convenient for controlling the size of a glue dropping liquid of low-viscosity glue, a production method and a dispenser with the dispensing needle head.
In order to achieve one of the above objectives, an embodiment of the present application provides a dispensing needle, including: needle tubing and first waterproof construction, the needle tubing include cavity type pipe box and by cavity type pipe box encloses the play gluey passageway of establishing the formation, go out gluey passageway including relative income that sets up glue mouthful and glue mouthful, first waterproof construction is located cavity type pipe box is kept away from go out one side surface of gluing the passageway, first waterproof construction corresponds mouthful regional setting is glued to the point.
As a further improvement of an embodiment of the present application, the first waterproof structure is a waterproof film.
As a further improvement of an embodiment of the present application, the waterproof film is plated on the outer surface.
As a further improvement of an embodiment of the present application, the first waterproof structure includes a plurality of annular waterproof structures surrounding the outer surface, and the annular waterproof structures are separated from each other.
As a further improvement of an embodiment of the present application, the present invention further includes: and the second waterproof structure is positioned on the inner surface of the glue outlet channel and is arranged corresponding to the glue dispensing port area.
As a further improvement of an embodiment of the present application, the first waterproof structure is connected to the second waterproof structure in the dispensing opening area.
As a further improvement of an embodiment of the present application, a distance between one side of the first waterproof structure facing the dispensing opening and the dispensing opening is greater than zero.
An embodiment of the present application further provides a method for producing a dispensing needle, including the following steps: providing a needle tube, wherein the needle tube comprises a hollow tube sleeve and a glue outlet channel formed by surrounding the hollow tube sleeve, and the glue outlet channel comprises a glue inlet and a glue outlet which are oppositely arranged; and arranging a first waterproof structure on the outer surface of one side of the hollow pipe sleeve, which is far away from the glue outlet channel, wherein the first waterproof structure corresponds to the glue outlet region.
As a further improvement of an embodiment of the present application, the step "providing a first waterproof structure on an outer surface of one side of the hollow pipe sleeve away from the glue outlet channel" specifically includes: and plating a waterproof film on the outer surface of one side of the hollow pipe sleeve, which is far away from the glue outlet channel.
An embodiment of the application also provides a point gum machine, including foretell some glue syringe needle.
Compared with the prior art, the technical effect of this application lies in: the embodiment of the application provides a dispensing needle head, a production method and a dispensing machine with the dispensing needle head, wherein a waterproof film is arranged on the outer surface of the dispensing needle head. When using this point to glue syringe needle to carry out some glue, when low viscosity glue flows from a point mouth of gluing, the surface of syringe needle can be glued at the point to low viscosity glue, trickling along the direction that flows against low viscosity glue, because the surface of syringe needle is glued to this point is provided with the water proof membrane, thereby very big shortening low viscosity glue trickling distance, can be with very big reduction climbing gluey phenomenon, thereby not only be convenient for generate the glue dropping liquid, also be convenient for control the size of glue dropping liquid.
Drawings
FIG. 1 is a schematic view of a dispensing needle of the prior art;
FIG. 2 is a schematic diagram of dispensing with a dispensing needle of the prior art;
FIG. 3 is a schematic view of a first structure of a dispensing needle in an embodiment of the present application;
FIG. 4 is a second structural diagram of a dispensing needle in an embodiment of the present application;
FIG. 5 is a schematic diagram of dispensing with a dispensing needle in an embodiment of the present application;
FIG. 6 is a schematic diagram of a third structure of a dispensing needle head in an embodiment of the present application;
fig. 7 is a schematic structural diagram of a dispenser in the embodiment of the present application.
Detailed Description
The present application will be described in detail below with reference to embodiments shown in the drawings. These embodiments are not intended to limit the present application, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present application.
The embodiment of the application provides a syringe needle is glued to point, as shown in fig. 3, including needle tubing 1 and first waterproof construction 2, needle tubing 1 includes cavity type pipe box 11 and by cavity type pipe box 11 encloses the play gluey passageway 111 of establishing the formation, go out gluey passageway 111 including the relative income gluey mouth 112 and some gluey mouth 113 that sets up, first waterproof construction 2 is located cavity type pipe box 11 is kept away from go out gluey passageway 111 one side surface, first waterproof construction 2 corresponds some gluey mouthful 113 regional settings.
Here, the hollow type socket 11 may be made of various materials, for example, stainless steel or plastic, etc.
Here, as shown in fig. 1 and fig. 2, in the dispensing needle of the prior art, the distance that the low-viscosity glue flows on the outer surface (i.e. flows along the dotted arrow on the outer surface) is relatively large; as shown in fig. 3-4, in the dispensing needle head according to the embodiment of the present application, since the first waterproof structure 2 is disposed on the outer surface, a distance that the low-viscosity glue flows (i.e., flows along a dotted arrow on the outer surface) can be greatly shortened, and a glue-climbing phenomenon can be greatly reduced, so that a glue droplet of the low-viscosity glue is easily formed at the dispensing opening 113, and therefore, the size of the glue droplet is small, and the size of the glue droplet is conveniently and accurately controlled.
Here, the first waterproof structure 2 may be a layer of paint coated on the outer surface, or a film layer adhered to the outer surface, or a mechanical structure.
In practice, the size of the dispensing hole is usually small (for example, the cross-sectional diameter is usually 0.3 mm-0.5 mm, etc.), and the lower the viscosity of the glue is, the more the glue creeping phenomenon is likely to occur.
Here, the dispensing needle may be of various types, for example: teflon dispensing needle heads, stainless steel dispensing needle heads, PP flexible dispensing needle heads, TT inclined dispensing needle heads, screw dispensing needle heads, bayonet dispensing needle heads or high-precision dispensing needle heads and the like. Here, the dispensing needle may be of various specifications, for example: 14G, 15G, 18G, 32G, 34G, etc.
In one embodiment of the invention, the waterproofing first waterproofing structure 2 is a waterproofing membrane.
In one embodiment of the invention, the waterproof film is plated on the outer surface.
In one embodiment of the present invention, as shown in fig. 4, the first waterproof structure 2 includes a plurality of annular waterproof structures 21 disposed around the outer surface, and the plurality of annular waterproof structures 21 are separated from each other. It will be appreciated that the area where the first waterproof structure is provided is less conducive to glue creep when low viscosity glue runs along the outer surface, while the area where the first waterproof structure is not provided is more conducive to glue creep. Therefore, if the size of the glue drops to be finally generated is large, the first waterproof structure is not arranged on the outer surface; if the glue drops to be finally generated are small, the first waterproof structure with a large area can be arranged on the outer surface, and it can be understood that the larger the area of the first waterproof structure is, the smaller the glue drops to be finally generated are. Therefore, it is possible to distribute several annular waterproof structures 21 on the outer surface separately from each other, which facilitates adjusting the area of the waterproof structure, for example: the smaller the distance between adjacent annular waterproof structures 21, the larger the area of the first waterproof structure 2 and vice versa.
In an embodiment of the present invention, as shown in fig. 3, the method further includes: and the second waterproof structure 4 is positioned on the inner surface of the glue outlet channel 111 and corresponds to the glue dispensing port 113 region. Here, the second waterproof structure 4 is disposed on the inner surface of the glue outlet channel 111, so that the low-viscosity glue can flow in the glue outlet channel 111 conveniently.
In one embodiment of the invention, the first waterproof structure 2 is connected to the second waterproof structure 4 in the region of the dispensing opening 113.
In an embodiment of the present invention, a distance between one side of the first waterproof structure 2 facing the dispensing opening 113 and the dispensing opening 113 is greater than zero. Here, in fig. 6, the distance between one side of the first waterproof structure 2 facing the dispensing opening 113 and the dispensing opening 113 is L, L >0, that is, the first waterproof structure 2 is not disposed in the region with the length of L, in the region, the low-viscosity glue is prone to a glue climbing phenomenon, and then the low-viscosity glue flows to the first waterproof structure 2, the glue climbing phenomenon is not prone to occur, it can be understood that, compared with the dispensing needle shown in fig. 3, a glue droplet finally generated by the dispensing needle in fig. 6 is larger, and the larger the value of L is, the larger the glue droplet is, and vice versa, the smaller the glue droplet is, thereby facilitating adjustment of the size of the formed glue droplet.
The second embodiment of the application also provides a production method of the dispensing needle head, which comprises the following steps:
step 1: providing a needle tube, wherein the needle tube 1 comprises a hollow tube sleeve 11 and a glue outlet channel 111 formed by surrounding the hollow tube sleeve 11, and the glue outlet channel 111 comprises a glue inlet 112 and a glue outlet 113 which are oppositely arranged;
step 2: in cavity type pipe box 11 keeps away from go out gluey passageway 111 one side surface and set up first waterproof construction 2, first waterproof construction 2 corresponds the regional setting of mouth 113 of gluing.
In an embodiment of the present invention, the step of providing the first waterproof structure 2 on the outer surface of the hollow pipe sleeve 11 away from the glue outlet channel 111 specifically includes: and plating a waterproof film on the outer surface of one side of the hollow pipe sleeve 11, which is far away from the glue outlet channel 111.
The third embodiment of the application provides a dispenser, and the dispenser is provided with the dispensing needle head.
The structure of the dispenser is shown in fig. 6, and may include a base 61, a support mounting frame 62, a needle support 63, and a dispensing needle 64, wherein the support mounting frame 62 is installed on the base 61, the needle support 63 is installed on the support mounting frame 62, and the dispensing needle 64 is installed on the needle support 63. During dispensing, the dispenser controls the needle support 63 to move, so that the dispensing needle 64 moves to the dispensing hole; then the dispensing machine controls the glue outlet device in the needle bracket 63 to extrude low-viscosity glue outwards, and the low-viscosity glue passes through the glue inlet 111, the glue outlet channel 11 and the glue outlet 113 of the dispensing needle, so that the low-viscosity glue with the preset volume or the preset quality is extruded from the glue outlet 113; and dripping the extruded low-viscosity glue into a glue dispensing hole.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the concrete description of the feasible embodiments of the present application, they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present application are intended to be included within the scope of the present application.
Claims (10)
1. A dispensing needle, comprising:
needle tubing and first waterproof construction, the needle tubing include cavity type pipe box and by cavity type pipe box encloses the play gluey passageway of establishing the formation, go out gluey passageway including relative income that sets up glue mouthful and glue mouthful, first waterproof construction is located cavity type pipe box is kept away from go out one side surface of gluing the passageway, first waterproof construction corresponds mouthful regional setting is glued to the point.
2. The dispensing needle of claim 1, wherein:
the first waterproof structure is a waterproof membrane.
3. The dispensing needle of claim 2, wherein:
the waterproof film is plated on the outer surface.
4. The dispensing needle of claim 1, wherein:
the first waterproof structure comprises a plurality of annular waterproof structures surrounding the outer surface, and the annular waterproof structures are separated from each other.
5. The dispensing needle of claim 1, further comprising:
and the second waterproof structure is positioned on the inner surface of the glue outlet channel and is arranged corresponding to the glue dispensing port area.
6. The dispensing needle of claim 5, wherein:
the first waterproof structure and the second waterproof structure are connected in the dispensing opening area.
7. The dispensing needle of claim 1, wherein:
the distance between one side of the first waterproof structure facing the dispensing opening and the dispensing opening is larger than zero.
8. A production method of a dispensing needle head is characterized by comprising the following steps:
providing a needle tube, wherein the needle tube comprises a hollow tube sleeve and a glue outlet channel formed by surrounding the hollow tube sleeve, and the glue outlet channel comprises a glue inlet and a glue outlet which are oppositely arranged;
and arranging a first waterproof structure on the outer surface of one side of the hollow pipe sleeve, which is far away from the glue outlet channel, wherein the first waterproof structure corresponds to the glue outlet region.
9. The method for producing a dispensing needle according to claim 8, wherein the step of providing a first waterproof structure on an outer surface of a side of the hollow tube casing away from the glue outlet channel specifically comprises:
and plating a waterproof film on the outer surface of one side of the hollow pipe sleeve, which is far away from the glue outlet channel.
10. A point gum machine which characterized in that: comprising a dispensing needle according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928675.0A CN110833966B (en) | 2018-08-15 | 2018-08-15 | Dispensing needle head, production method and dispensing machine with dispensing needle head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810928675.0A CN110833966B (en) | 2018-08-15 | 2018-08-15 | Dispensing needle head, production method and dispensing machine with dispensing needle head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110833966A true CN110833966A (en) | 2020-02-25 |
| CN110833966B CN110833966B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810928675.0A Active CN110833966B (en) | 2018-08-15 | 2018-08-15 | Dispensing needle head, production method and dispensing machine with dispensing needle head |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009268982A (en) * | 2008-05-08 | 2009-11-19 | Ntn Corp | Coating needle, and coating mechanism, defect correcting device and coating method, using the same |
| CN102101097A (en) * | 2011-03-31 | 2011-06-22 | 华南理工大学 | Ultra-micro glue dispensing device and method |
| CN103920617A (en) * | 2014-04-04 | 2014-07-16 | 深圳市晶台股份有限公司 | Method for solving problems of glue overflowing, glue attachment and glue drawing on needle in SMD (Surface Mount Device) type LED (Light Emitting Diode) sealing procedure by use of film releasing agent |
| CN204155955U (en) * | 2014-07-24 | 2015-02-11 | 吉安市木林森电子科技有限公司 | Adhesive dispenser climbed by a kind of anti-support |
| CN106493044A (en) * | 2016-12-21 | 2017-03-15 | 华讯方舟科技（湖北）有限公司 | A kind of spot gluing equipment and dispensing method for microwave product |
| CN207576796U (en) * | 2017-10-13 | 2018-07-06 | 旭宇光电（深圳）股份有限公司 | Dispensing needle head and point glue equipment |
-
2018
- 2018-08-15 CN CN201810928675.0A patent/CN110833966B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009268982A (en) * | 2008-05-08 | 2009-11-19 | Ntn Corp | Coating needle, and coating mechanism, defect correcting device and coating method, using the same |
| CN102101097A (en) * | 2011-03-31 | 2011-06-22 | 华南理工大学 | Ultra-micro glue dispensing device and method |
| CN103920617A (en) * | 2014-04-04 | 2014-07-16 | 深圳市晶台股份有限公司 | Method for solving problems of glue overflowing, glue attachment and glue drawing on needle in SMD (Surface Mount Device) type LED (Light Emitting Diode) sealing procedure by use of film releasing agent |
| CN204155955U (en) * | 2014-07-24 | 2015-02-11 | 吉安市木林森电子科技有限公司 | Adhesive dispenser climbed by a kind of anti-support |
| CN106493044A (en) * | 2016-12-21 | 2017-03-15 | 华讯方舟科技（湖北）有限公司 | A kind of spot gluing equipment and dispensing method for microwave product |
| CN207576796U (en) * | 2017-10-13 | 2018-07-06 | 旭宇光电（深圳）股份有限公司 | Dispensing needle head and point glue equipment |
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| CN110833966B (en) | 2022-06-24 |
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