CN201186252Y - Glue solution injector driven by electromagnetic expulsive force - Google Patents
Glue solution injector driven by electromagnetic expulsive force Download PDFInfo
- Publication number
- CN201186252Y CN201186252Y CNU200820053102XU CN200820053102U CN201186252Y CN 201186252 Y CN201186252 Y CN 201186252Y CN U200820053102X U CNU200820053102X U CN U200820053102XU CN 200820053102 U CN200820053102 U CN 200820053102U CN 201186252 Y CN201186252 Y CN 201186252Y
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- glue
- nozzle needle
- connector
- electromagnet
- spring
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Abstract
The utility model relates to a glue solution ejector on the basis of electromagnetic repulsive force drive, which comprises a nozzle, a nozzle needle, a glue solution cavity, a thermal control body, a nozzle needle spring pre-tightening device and an electromagnet, wherein the nozzle needle spring pre-tightening device comprises a pre-tightening force adjusting knob, a stroke adjusting knob and a preloaded spring, the electromagnet comprises an upper connector, a positioning stop block, a lower connector, an iron core, a coil, an armature, an adjustable damper, a pre-load nut, wherein the electromagnet and the armature are excluded mutually through controlling the electrifying voltage of the electromagnet to drive the nozzle needle to move upwards and to compress the spring, the nozzle needle resets under the effect of the spring force, and thereby the nozzle needle moves in a reciprocating mode to achieve the purpose of spraying the glue solution. The glue solution ejector has simple structure, convenient use, adjustable spraying speed and glue solution spraying capacity, and long service life, is suitable of industrial production, can replace an existing spring-pneumatic driving adhesive spraying system, and is in particular applicable to packaging microelectronic chips.
Description
Technical field
The utility model discloses a kind of glue-spraying device, be meant a kind of glue solution injector that drives based on electromagnetic repulsion force especially, relate to microelectronics equipment technology field, mainly be applicable to the microelectronic chip encapsulation.
Background technology
Gelatin jet is a kind of novel microelectronic packaging technology.In existing technical field, the glue spraying equipment that is used for microelectronics Packaging mainly is equipped for the master with the pneumatic gelatin jet of Asymtek company.It is that turnover by Pneumatic valve control high pressure draught promotes actuator piston and moves up and down, and moves back and forth thereby promote to spray syringe needle, realizes the course of injection of extruding glue.The driving force that existing pneumatic actuation injector provides is less, simultaneously because nozzle needle is direct and the base collision, make nozzle needle material and size all be very limited, and the axiality of requirement and cylinder is very high, thereby is difficult to realize the injection of micro-glue and big viscosity spray glue.Electromagnetic Drive can overcome the shortcoming of pneumatic actuation, and it can be by realizing between electromagnet and the armature less clearance so that very big driving force to be provided, and the response time is very short, is greatly improved to jet velocity and accuracy of spray are provided.Relevant therewith have a United States Patent (USP), this patent has proposed a kind of electromagnetic attraction and has driven the jetting dispenser design, still there are following shortcoming in shortcoming and its structure of not improving the traditional, pneumatic jetting dispenser well: one, because design is as a whole, is difficult to realize less clearance between electromagnet and the armature; Its two, do not design position-limitting pin, nozzle needle and pedestal direct collision make nozzle needle damage easily; Its three, do not design the pretightning force adjusting knob, can not adjust movement travel and initial tension of spring.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple in structure, easy to use, jet velocity and spouting liquid is adjustable, the glue solution injector that drives based on electromagnetic repulsion force of long service life.
A kind of glue solution injector that drives based on electromagnetic repulsion force of the utility model comprises nozzle, nozzle needle, glue cavity, thermal control body, nozzle needle spring preloading device, electromagnet,
Described nozzle needle spring preloading device comprises pretightning force adjusting knob, stroke adjustment knob, preloading spring; Described pretightning force adjusting knob lower end is provided with the content cavity that can place preloading spring, and outer circumference surface is provided with screw thread and spinning in the internal thread hole of stroke adjusting knob, and the outer circumference surface of described stroke adjustment knob is provided with screw thread;
Described electromagnet comprises connector, position block, following connector, iron core, coil, armature, fender plate, pre-load nut; Iron core, coil are installed in the connector inner chamber under the described electromagnet, and its upper surface is connected with last connector by screw, has clamped a location block between upper and lower connector joint face, and described going up in the connector inner chamber is provided with internal thread;
Described glue cavity center is hollow storage glue hole, and a side is provided with the glue inlet tube with described storage glue hole UNICOM, and the end in described glue cavity storage glue hole is installed with nozzle by the thermal control body, and the other end is connected the lower end of connector under the described electromagnet by nut;
Described nozzle needle middle part is provided with the location shaft shoulder, and an end is inserted under the described electromagnet in the connector central through hole and extends in the storage glue hole of glue cavity, and the other end is provided with a screw rod, on described screw rod, is installed with armature, fender plate, pre-load nut successively; A upper end and an end that preloading spring in the described nozzle needle spring preloading device is sleeved on described screw rod contact with pre-load nut, and the connector inner chamber is spirally connected and will be contained in the described preloading spring axial location that goes up in the connector inner chamber on stroke adjustment knob excircle in the described nozzle needle spring preloading device and the described electromagnet.
In the utility model, be provided with sealing ring and pilot sleeve between the connector under described glue cavity and the electromagnet.
In the utility model, in described pilot sleeve, be provided with sliding sleeve.
In the utility model, described nozzle contacts with the glue cavity and is provided with base, O RunddichtringO between the end face successively.
Operation principle of the present utility model is sketched in following:
1, by adjusting the distance of spinning between pre-load nut, armature, fender plate regulating magnet (forming) and the armature of nozzle needle end by iron core and coil in the connector under being fixed on, and then reach gap between control nozzle needle end and the base, the generation of stopping collision phenomenon between nozzle needle and the base.
2, by the rotating distance adjusting knob, the distance between adjustment stroke adjusting knob and the adjustable plate washer is to realize the effective exercise stroke of control nozzle needle.
3, connect the electromagnet coil power supply, the magnetic field that the energising back produces makes unshakable in one's determination and armature repels each other, under the effect of electromagnetic repulsion force, armature drive nozzle needle moves upward and compresses spring, to when adjustable plate washer that imperial iron is connected as a single entity contacts with the stroke adjustment knob, coil blackout, magnetic field disappear and keep a period of time so that replenish glue from glue-feeder; Then, nozzle needle moves downward rapidly under the effect of spring force, nozzle needle move downward glue in the extruding glue chamber rapidly, glue ejection one small drop in the syringe needle of nozzle rapidly under the promotion of high speed nozzle needle once sprays the glue process thereby finish; Next coil continues energising, and injector repeats action last time.
The utility model is owing to adopt said structure, can be by adjusting pre-load nut and regulating distance between block regulating magnet and the armature, and avoid the collision between nozzle needle and nozzle or the base and damage; Can pass through the rotating distance adjusting knob, regulate the stroke of nozzle needle, change the size that glue drips; Can change the initial compression amount of spring, to realize the spray glue of friction speed and dynamics by rotation pretightning force adjusting knob.Compare with existing pneumatic actuation glue distributor, have the following advantages:
1) setting of pre-load nut, fender plate can guarantee that nozzle needle does not collide nozzle or base, reduce the requirement of strength of material, enlarged the range of choice of nozzle needle material, the material that can select for use glue and nozzle needle to be complementary, simultaneously, can effectively improve the service life of injector vital part nozzle needle and nozzle, the nozzle needle that has overcome existing spring----Pneumatic drive system is because the drawback that collision needs special material and damages easily.
2) because nozzle needle does not collide nozzle or base, the size of nozzle needle and nozzle can further reduce, thereby more helps the shear thinning and the micro-gelatin jet of glue.
3) air gap between magnet and the armature is less, and electromagnetic attraction can be very big, and correspondingly, the driving force of spring also can be very big.This helps improving acceleration, the little nozzle needle stroke of employing of nozzle needle motion, thereby might be used for the micro-spray distribution of the injector and the glue of big viscosity glue.
4) with existing spring----Pneumatic drive system require nozzle needle---cylinder height is coaxial different because magnet and armature are two parts separately, axiality less demanding helps making.
5) relative pneumatic actuation, the adjustment of electromagnetic force is more convenient with control.
In sum, that the utility model---a kind of glue solution injector that drives based on electromagnetic repulsion force has is simple in structure, easy to use, jet velocity and spouting liquid is adjustable, long service life, be suitable for suitability for industrialized production, can substitute existing spring----pneumatic actuation spraying colloid system, be specially adapted to the encapsulation of microelectronic chip.
Description of drawings
Fig. 1 is the front view of glue solution injector;
Fig. 2 is the partial view of nozzle segment among Fig. 1.
Among the figure, connector, 8---nut, 9---glue cavity, 10---thermal control part, 11---nozzle, 12---base, 13---O type circle, 14---nozzle needle, 15---sealing ring, 16---sliding sleeve, 17---pilot sleeve, 18---iron core, 19---coil, 20---armature, 21---fender plate, 22---pre-load nut, 23---preloading spring under 1---pretightning force adjusting knob, 2---stroke adjustment knob, the last connector of 3---, 4---bolt, 5---fixed stop, 6---attaching nut, the 7---.
The specific embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present utility model in detail.
Referring to accompanying drawing 1,2, the utility model---a kind of glue solution injector that drives based on electromagnetic repulsion force comprises nozzle 11, nozzle needle 14, glue cavity 9, thermal control body 10, nozzle needle spring preloading device, electromagnet,
Described nozzle needle spring preloading device comprises pretightning force adjusting knob 1, stroke adjustment knob 2, preloading spring 23; Described pretightning force adjusting knob 1 lower end is provided with the content cavity that can place preloading spring 23, and outer circumference surface is provided with screw thread and spinning in the internal thread hole of stroke adjusting knob 2, and the outer circumference surface of described stroke adjustment knob 2 is provided with screw thread;
Described electromagnet comprises connector 3, position block 5, following connector 7, iron core 18, coil 19, armature 20, fender plate 21, pre-load nut 22; Iron core 18, coil 19 are installed in connector 7 inner chambers under the described electromagnet, and its upper surface is connected with last connector 3 by screw, has clamped a location block 5 between upper and lower connector joint face, and described going up in connector 3 inner chambers is provided with internal thread;
Described glue cavity 9 centers are hollow storage glue hole, one side is provided with the glue inlet tube with described storage glue hole UNICOM, end in described glue cavity 9 storage glue holes is installed with nozzle 11 by thermal control body 10, and the other end is connected the lower end of connector 7 under the described electromagnet by nut 8;
Described nozzle needle 14 middle parts are provided with the location shaft shoulder, one end is inserted under the described electromagnet in connector 7 central through holes and extends in the storage glue hole of glue cavity 9, the other end is provided with a screw rod 24, on described screw rod 24, is installed with armature 20, fender plate 21, pre-load nut 22 successively; Preloading spring in described nozzle needle spring preloading device cover 23 upper end and ends that are contained in described screw rod 24 contact with pre-load nut 22, on stroke adjustment knob 2 excircles in the described nozzle needle spring preloading device and the described electromagnet connector 3 inner chambers be spirally connected and will be contained in described on preloading spring 23 axial location in connector 3 inner chambers.
In the utility model, be provided with sealing ring 15 and pilot sleeve 17 under described glue cavity 9 and the electromagnet between the connector 7.
In the utility model, in described pilot sleeve 17, be provided with sliding sleeve 16.
In the utility model, described nozzle 11 contacts with glue cavity 9 and is provided with base 12, O RunddichtringO 13 between the end face successively.
Claims (4)
1, a kind of glue solution injector that drives based on electromagnetic repulsion force comprises nozzle, nozzle needle, glue cavity, thermal control body, nozzle needle spring preloading device, electromagnet, it is characterized in that:
Described nozzle needle spring preloading device comprises pretightning force adjusting knob, stroke adjustment knob, preloading spring; Described pretightning force adjusting knob lower end is provided with the content cavity that can place preloading spring, and outer circumference surface is provided with screw thread and spinning in the internal thread hole of stroke adjusting knob, and the outer circumference surface of described stroke adjustment knob is provided with screw thread;
Described electromagnet comprises connector, position block, following connector, iron core, coil, armature, fender plate, pre-load nut; Iron core, coil are installed in the connector inner chamber under the described electromagnet, and its upper surface is connected with last connector by screw, has clamped a location block between upper and lower connector joint face, and described going up in the connector inner chamber is provided with internal thread;
Described glue cavity center is hollow storage glue hole, and a side is provided with the glue inlet tube with described storage glue hole UNICOM, and the end in described glue cavity storage glue hole is installed with nozzle by the thermal control body, and the other end is connected the lower end of connector under the described electromagnet by nut;
Described nozzle needle middle part is provided with the location shaft shoulder, and an end is inserted under the described electromagnet in the connector central through hole and extends in the storage glue hole of glue cavity, and the other end is provided with a screw rod, on described screw rod, is installed with armature, fender plate, pre-load nut successively; A upper end and an end that preloading spring in the described nozzle needle spring preloading device is sleeved on described screw rod contact with pre-load nut, and the connector inner chamber is spirally connected and will be contained in the described preloading spring axial location that goes up in the connector inner chamber on stroke adjustment knob excircle in the described nozzle needle spring preloading device and the described electromagnet.
2, a kind of glue solution injector that drives based on electromagnetic repulsion force according to claim 1 is characterized in that: be provided with sealing ring and pilot sleeve between the connector under described glue cavity and the electromagnet.
3, a kind of glue solution injector that drives based on electromagnetic repulsion force according to claim 1 is characterized in that: be provided with sliding sleeve in described pilot sleeve.
4, a kind of glue solution injector that drives based on electromagnetic repulsion force according to claim 1, it is characterized in that: described nozzle contacts with the glue cavity and is provided with base, O RunddichtringO between the end face successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820053102XU CN201186252Y (en) | 2008-05-09 | 2008-05-09 | Glue solution injector driven by electromagnetic expulsive force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820053102XU CN201186252Y (en) | 2008-05-09 | 2008-05-09 | Glue solution injector driven by electromagnetic expulsive force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201186252Y true CN201186252Y (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820053102XU Expired - Lifetime CN201186252Y (en) | 2008-05-09 | 2008-05-09 | Glue solution injector driven by electromagnetic expulsive force |
Country Status (1)
| Country | Link |
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| CN (1) | CN201186252Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668127A (en) * | 2015-02-09 | 2015-06-03 | 苏州光宝微电子科技有限公司 | Hot melt adhesive injection valve |
| CN106142836A (en) * | 2015-04-21 | 2016-11-23 | 上海菱光电气制造有限公司 | A kind of novel inkjet resistor |
| WO2018205681A1 (en) * | 2017-05-08 | 2018-11-15 | 常州铭赛机器人科技股份有限公司 | Minute fluid jetting device |
-
2008
- 2008-05-09 CN CNU200820053102XU patent/CN201186252Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668127A (en) * | 2015-02-09 | 2015-06-03 | 苏州光宝微电子科技有限公司 | Hot melt adhesive injection valve |
| CN106142836A (en) * | 2015-04-21 | 2016-11-23 | 上海菱光电气制造有限公司 | A kind of novel inkjet resistor |
| WO2018205681A1 (en) * | 2017-05-08 | 2018-11-15 | 常州铭赛机器人科技股份有限公司 | Minute fluid jetting device |
| US11478805B2 (en) | 2017-05-08 | 2022-10-25 | Changzhou Mingseal Robot Technology Co., Ltd. | Minute fluid jetting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090128 Effective date of abandoning: 20080509 |