CN201815443U - Volume type quantitative injection valve - Google Patents
Volume type quantitative injection valve Download PDFInfo
- Publication number
- CN201815443U CN201815443U CN2010205619072U CN201020561907U CN201815443U CN 201815443 U CN201815443 U CN 201815443U CN 2010205619072 U CN2010205619072 U CN 2010205619072U CN 201020561907 U CN201020561907 U CN 201020561907U CN 201815443 U CN201815443 U CN 201815443U
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- injection valve
- cylinder
- positive displacement
- valve
- metered injection
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Abstract
The utility model discloses a volume type quantitative injection valve, and aims to solve the technical problems of accurately controlling the injection amount of packaging material and adjusting the injection amount. The volume type quantitative injection valve is provided with an injection cavity with an outlet, and a firing pin arranged in the injection cavity; the firing pin moves to the outlet of the injection cavity under power drive, and restores to the normal position under the action of a restoring force; the injection cavity, which is closed, is connected with a hole pipe with a valve; the hole pipe is connected with a material cylinder; and during the movement period of the firing pin under the drive of power, the valve is in a closed state. Compared with the prior art, the utility model has the advantages that since the valve is arranged between a closed inverted-cone-shaped inner cavity and the glue inlet hole pipe, when the firing pin downwards strikes glue water at the inner cavity of a nozzle, the glue water is injected out from the outlet and cannot flow back to the glue inlet hole pipe; and the same valve body is equipped with the firing pins with different diameters, so that the injection valve is suitable for different injection amounts. The injection valve is suitable for injecting filling glue, and adhesives, the packaging material, welding glue, coatings and lubricating oil for welding elements in the electronic industry process.
Description
Technical field
The utility model relates to a kind of electronics industry special equipment, particularly a kind of injection apparatus that is used to spray the adhesive of filling glue, welding component and using, encapsulating material, weldering glue, coating, lubricating oil.
Technical background
The electronic devices and components size that the hyundai electronics industrial products are adopted is more and more littler, accurate more, mounting means is variation also, therefore need encapsulating material be sent to assigned address with split-hair mode, do not interfere other components and parts again, and at different environments for use, encapsulating material is had different physical and chemical performance requirements, and as mobile, viscosity, even the performance of partially mixed glue and flow regime change in time and change.The existing processes technology is with injection valve encapsulating material to be ejected into assigned address.At first encapsulating material is put into barrel, above barrel, encapsulating material is extruded from the barrel outlet at bottom by compressed air, deliver to the spray chamber in the injection valve, by under the striker high-speed impact on the cylinder piston, the exit of encapsulating material from small bore ejected again.Because the outlet aperture enters the import bore of spray chamber much smaller than glue, encapsulating material is subjected to the interior pressure that striker pushes generation at a high speed, and the encapsulating material major part is flow backwards away from import department, causes the glue amount that ejects to be difficult to control.Viscosity is big more, and the glue amount is inaccurate more.Therefore, the existing processes technology is difficult to satisfy the higher encapsulating material point glue of viscosity, does not reach the technology requirement of electronic product processing.
Summary of the invention
The purpose of this utility model provides a kind of positive displacement metered injection valve, and the technical problem that solve is accurately to control the emitted dose of encapsulating material, and the emitted dose adjustable size.
The utility model is by the following technical solutions: a kind of positive displacement metered injection valve, has the spray chamber of taking mouth out of, be arranged on the striker in the spray chamber, striker moves to the outlet of spray chamber when power drive, return back to original position under the restoring force effect, and described spray chamber is a closed, it is connected with the hole pipe of band valve, the hole pipe connects barrel, and described striker is between power-actuated moving period, and valve is in closed condition.
Positive displacement metered injection valve of the present utility model is provided with the fluid control box, and spray chamber, valve, hole pipe and barrel are arranged on the fluid control box.
Spray chamber of the present utility model is back taper, and the end outlet is cylindrical hole.
Valve of the present utility model adopts aciculiform cylinder CJPB6-5 type, and the hole pipe is formed hermetically-sealed construction.
The power of driving of the present utility model is compressed air.
Striker of the present utility model connects as one with the piston that is arranged in the cylinder.
Restoring force of the present utility model adopts the compression spring to produce.
Compression spring of the present utility model is nested with on striker, the bottom of an end in contact piston, place, other end contact cylinder step plane.
Cylinder upper of the present utility model is provided with the stroke adjustment screw rod, and the stroke adjustment screw rod is threaded with cylinder.
Cylinder of the present utility model is arranged on the fluid control box, is provided with first guide pin bushing in the cylinder, and the seal receptacle that is provided with in the fluid control box is on spray chamber top, and first guide pin bushing and seal receptacle axis coaxle are provided with.
The utility model compared with prior art, between back taper inner chamber that seals and glue feeding opening pipe, a valve is set, cut off defeated glue loop, clash into the glue of nozzle inner chamber downwards when striker, it can only be ejected from outlet, can not be back to the glue feeding opening pipe that is connected with barrel, like this, can guarantee to spray glue quantity at every turn and change≤1%, realize each accurate control of spraying glue quantity, directly the connecting together of the cylinder block of valve body and magnetic valve, shortened gas circuit widely, the action and the magnetic valve action that guarantee steam-cylinder piston are synchronous, improve the response speed of spray glue valve significantly, have improved the some glue frequency of injection valve; Simultaneously, because gas circuit is short, reduced the striker movement position deviation that produces by the compressed air compressibility widely, this also is to guarantee the accurate important measures of spray glue amount, adopt the spring reset piston, compact conformation, control the impulsive force size of striker by regulating compressed air pressure, to adapt to the viscosity of different encapsulating materials, the scope of suitable material is bigger, and the injection valve nozzle does not contact precision machined product, be easy to operation and maintenance, in addition, the utility model positive displacement metered injection valve is designed to the striker of same valve body adapted different-diameter, applicable different emitted dose.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of power source assembly of the present utility model.
Fig. 3 is the structural representation of fluid control box assembly of the present utility model.
Fig. 4 is the structural representation of cylinder A of the present utility model.
Fig. 5 is a stroke adjustment screw-rod structure schematic diagram of the present utility model.
Fig. 6 is a piston striker structure schematic diagram of the present utility model.
Fig. 7 is the fixed cap structural representation of going up of the present utility model.
Fig. 8 is a fluid control box structural representation of the present utility model.
Fig. 9 is a nozzle structural representation of the present utility model.
Figure 10 is a seal receptacle structural representation of the present utility model.
Figure 11 is a cylinder B structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As shown in Figure 1, positive displacement metered injection valve of the present utility model is made up of power source assembly and fluid control box assembly, adopts 4 screw rods to pass the fluid control box, the fluid control box is fixedly mounted on the installing hole on the power source assembly, forms positive displacement metered injection valve.
As Fig. 2 and shown in Figure 4, the power source assembly is provided with cylinder A1, and cylinder A1 has vertical through hole, and this through hole aperture from top to bottom progressively dwindles and is divided into four coaxial holes: first screw 11, second hole 12, the 3rd hole 13, the 4th hole 14.Cylinder A1 side has the axis normal in 15, the five holes 15, the 5th hole in second hole 12, is communicated with second hole 12.In the side of cylinder A1, the upper and lower of the 5th hole 15 be respectively equipped with first blind hole 22 and second blind hole 23 that axis is parallel to the 5th hole 15 axis, with the another side of the cylinder A1 of first blind hole, 22 axis normal on be provided with the 3rd blind hole 24, the 3rd hole 24 is communicated with first blind hole 22, with the another side of the cylinder A1 of second blind hole, 23 axis normal on be provided with the 4th blind hole 25, the four blind holes 25 and be communicated with second blind hole 23.The 5th hole 15 is used for from magnetic valve A to inlet casing A being communicated with, and first to fourth blind hole is used for connecting magnetic valve A and source of the gas, exhaust.The axis normal that the side that cylinder A1 is relative with 15 apertures, the 5th hole has 11-holes 27, the 11-holes 27 is communicated with the 4th hole 14 in the 4th hole 14.
Described cylinder A1 side is equipped with magnetic valve A4, and magnetic valve A4 satisfies five position-3-way solenoid valves of Ф 4, switching frequency 2ms, and gas outlet on the magnetic valve A4 and the 5th hole 15 are connected.
As Fig. 2 and shown in Figure 5, stroke adjustment screw rod 2 is shaped as cylindrical-shaped structure, and the middle part is a screw thread, and an end is the light face of cylinder, and the other end is the bigger straight knurling of relative middle part external diameter.Stroke adjustment screw rod 2 is threaded with 11 formation of first screw in pack into first screw 11 and second hole 12.
As Fig. 2 and shown in Figure 6, the striker 5 that connects as one with piston is located in second hole 12, and the striker of this piston striker 5 partly stretches out the 4th hole 14, is provided with first guide pin bushing 6 between striker part and the 4th hole 14.On the perisporium of piston, have cannelure, be provided with an O RunddichtringO 17 in the groove.Piston can be along moving up and down in the cylinder of second hole, 12 formations.The position of adjustment stroke adjusting screw(rod) 2, stroke that can control piston striker 5.
Be provided with spiral compression spring 7 in the piston bottom, compression spring 7 is located in the 3rd hole 13, is nested with outside striker 5, and the bottom of the top contact piston of compression spring 7, bottom are arranged on the 3rd hole 13 and locate with the step plane that is connected between the 4th hole 14.
As Fig. 2 and shown in Figure 7, the upper end of cylinder A 1 is provided with fixed cap 3, has the 6th hole 16 in the middle of the last fixed cap 3.Fixed cap 3 is fixed on the cylinder A 1 by screw 14.Stroke adjustment screw rod 2 is packed into by the 6th hole 16 in first screw 11, second hole 12.
As Fig. 3 and shown in Figure 8, fluid control box assembly is provided with the fluid control box 8 that cross sectional shape is a rectangle, has vertical seven apertures in the human head 18 on fluid control box 8.Bottoms in the seven apertures in the human head 18 are provided with nozzle 11, in seven apertures in the human head 18, nozzle 11 tops are provided with seal receptacle 12.On seven apertures in the human head 18, be communicated with axis normal and be parallel to seven apertures in the human head 18 to fluid control box 8 tops in octal 19, the octals 19 other end axis of seven apertures in the human head 18 axis.Fluid control box 8 sides, have the 9th coaxial hole 20 and 21, the nine holes 20, the tenth hole and the axis in the tenth hole 21 and the axis normal of octal 19, be communicated with the middle part of octal 19, the aperture in the 9th hole 20 is greater than the aperture in the tenth hole 21, and the 9th hole 20 and the tenth hole 21 are used to install cylinder B9.
As Fig. 3 and shown in Figure 9, nozzle 11 inner chambers are back taper, and the end outlet is cylindrical hole.
As Fig. 3 and shown in Figure 10, seal receptacle 12 is cylindric, and the inwall of tube has the cannelure of placing the 2nd O RunddichtringO 26, and seal receptacle 12 bottoms have a breach 20.
As shown in Figure 1, the head of the striker of piston striker 5 part passes seven apertures in the human head 18, and the end forms hermetically-sealed construction to the cylindrical hole of nozzle 11.After seal receptacle 12 was fitted into seven apertures in the human head 18, octal 19 was communicated with the back taper chamber of nozzle 11 by breach 20.Be provided with barrel 13 on octal 19 apertures, fluid control box 8 top, the upper end connected external pressure gas source after barrel 13 was contained glue.Control the break-make of octal 19 by the cylinder B9 of the 9th hole 20 and 21 installations of the tenth hole.
As shown in figure 11, cylinder B9 is the aciculiform cylinder, adopts the CJPB6-5 type of Japanese SMC company.
Be provided with magnetic valve B10 on fluid control box 8, this magnetic valve B10 is the two-bit triplet magnetic valve, adopts the MHA2 type of German FESTO company, and the gas outlet tube that connects magnetic valve B10 connects the intake interface of cylinder B9.
During assembling, as shown in Figure 2, put an O RunddichtringO 17 on the piston of piston striker 5, coating lubricating oil fat on an O RunddichtringO 17 is in case leak gas between piston and the cylinder, it is smooth and easy to allow piston move, after putting compression spring 7 on the striker, pack cylinder A 1 through hole into from top in, will go up 4 screws 14 of fixed cap 3 usefulness again and be fixed on the cylinder A1, from last fixed cap 3, stroke adjustment screw rod 2 is put in, is threaded with cylinder A1, be assembled into the power source assembly.
As shown in Figure 3, with nozzle 11 bottoms in the seven apertures in the human head 18 of fluid control box 8 of packing into, the 2nd O RunddichtringO 23 is packed in the cannelure of seal receptacle 12, with seal receptacle 12 pack in the seven apertures in the human head 18 of fluid control box 8, on the nozzle 11, and the down gap 20 of seal receptacle 12 aimed at octals 19 (glue-feeder), then barrel 13 (be used for adorning glue) is fixed in octal 19 apertures on fluid control box 8 tops, be assembled into fluid control box assembly.
The striker head partly of piston striker 5 is passed seal receptacle 12, and the end forms hermetically-sealed construction to the cylindrical hole outlet of nozzle 11, with 4 screw rods fluid control box assembly and power source assembly is fixed again.The upper-lower position of adjustment stroke adjusting screw(rod) 2 controls to desired value with piston stroke, realizes final purpose of regulating the glue emitted dose.Cylinder B9 is packed in the 9th hole 20 of fluid control box 8, and the needle-shaped ends of cylinder B9 end puts in the tenth hole 21, forms the valve of hermetically-sealed constructions with octal 19.
Positive displacement metered injection valve of the present utility model is installed on the electronics industry special equipment (main equipment), its course of work:
1, the glue of packing in the barrel 13, cylinder B is a normally off, the pressure of external pressure gas source (compressed air) makes the position of the valve that glue constitutes to cylinder B9 through the octal 19 (being called the hole pipe again) of fluid control box 8 from barrel 13.
2, magnetic valve B10 receives the control signal of main equipment, make cylinder B9 action open valve on the octal pipe 19, glue flows into the inner chamber (being called quantitative chamber, spray chamber again) of nozzle 11 in the seal receptacle 12, magnetic valve B10 receives the control signal of main equipment, and action makes cylinder B9 close valve on the octal pipe 19 again.
3, main equipment transmits control signal to magnetic valve A4, magnetic valve A4 control compressed air enters the piston upper end of 1 cylinder A3 through the 5th hole 15, promoting piston moves down fast, the striker 5 that is connected with piston collides downwards fast, striker 5 is with the exit ejection of the glue in the cavity from nozzle 11, magnetic valve A4 closes then, and the piston striker 5 pressured springs 7 that contract are elastic resets.
Repeat above-mentioned 1-3 step, the glue pointwise is injected on the workpiece fast.
Can select the striker of different-diameter, cooperate different nozzle cavity volume, or adjust piston stroke, spray required glue quantity to select at every.
Embodiment, the diameter of striker are Ф 1.0mm, and the striker platform plays 0.5mm, and the nozzle cavity volume is 0.5mm3, nozzle outlet internal diameter is 0.2mm, and bleed pressure is 6Mpa, and piston stroke is 0.5mm, epoxy resin glue A+B, viscosity 1000CPS, jet velocity 〉=2ms, spray gel quantity 0.5＜mm
3, spray the glue quantity uniformity at every turn and change≤1%.
Positive displacement metered injection valve of the present utility model can be handled the material of viscosity 200000Mpa, and elected when being 2ms with the magnetic valve operating frequency, the operating frequency of positive displacement metered injection valve of the present utility model can reach 500Hz.
Claims (10)
1. positive displacement metered injection valve, has the spray chamber of taking mouth out of, be arranged on the striker (5) in the spray chamber, striker (5) moves to the outlet of spray chamber when power drive, return back to original position under the restoring force effect, it is characterized in that, described spray chamber is a closed, and its hole pipe (19) with the band valve is connected, and hole pipe (19) connects barrel (13), described striker (5) is between power-actuated moving period, and valve is in closed condition.
2. positive displacement metered injection valve according to claim 1 is characterized in that, described positive displacement metered injection valve is provided with fluid control box (8), and spray chamber, valve, hole pipe (19) and barrel (13) are arranged on the fluid control box (8).
3. positive displacement metered injection valve according to claim 2 is characterized in that described spray chamber is back taper, and the end outlet is cylindrical hole.
4. positive displacement metered injection valve according to claim 3 is characterized in that, described valve adopts aciculiform cylinder CJPB6-5 type, and hole pipe (19) is formed hermetically-sealed construction.
5. positive displacement metered injection valve according to claim 4 is characterized in that the power of described driving is compressed air.
6. positive displacement metered injection valve according to claim 5 is characterized in that, described striker (5) connects as one with the piston that is arranged in the cylinder.
7. positive displacement metered injection valve according to claim 6 is characterized in that, described restoring force adopts compression spring (7) to produce.
8. positive displacement metered injection valve according to claim 7 is characterized in that, described compression spring (7) is nested with on striker (5), the bottom of an end in contact piston, place, other end contact cylinder step plane.
9. positive displacement metered injection valve according to claim 8 is characterized in that described cylinder upper is provided with stroke adjustment screw rod (2), and stroke adjustment screw rod (2) is threaded with cylinder.
10. positive displacement metered injection valve according to claim 9, it is characterized in that, described cylinder is arranged on the fluid control box (8), be provided with first guide pin bushing (6) in the cylinder, the seal receptacle (12) that is provided with in the fluid control box (8) is on spray chamber top, first guide pin bushing (6) and seal receptacle (12) axis coaxle setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205619072U CN201815443U (en) | 2010-10-14 | 2010-10-14 | Volume type quantitative injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205619072U CN201815443U (en) | 2010-10-14 | 2010-10-14 | Volume type quantitative injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201815443U true CN201815443U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205619072U Expired - Fee Related CN201815443U (en) | 2010-10-14 | 2010-10-14 | Volume type quantitative injection valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN201815443U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972728A (en) * | 2010-10-14 | 2011-02-16 | 深圳市宜极邦机电设备有限公司 | Volumetric quantitative jet valve |
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN103464342A (en) * | 2013-08-30 | 2013-12-25 | 中南大学 | Jetting glue dispensing valve device and jetting glue dispensing method |
| CN105050730A (en) * | 2013-03-14 | 2015-11-11 | 武藏工业株式会社 | Liquid material discharge device, coating device thereof, and coating method |
| CN107136561A (en) * | 2017-06-17 | 2017-09-08 | 常德烟草机械有限责任公司 | The glue cooling device and cooling means of a kind of cork paper |
| CN111853253A (en) * | 2020-06-29 | 2020-10-30 | 王艳萍 | Cylinder control valve |
-
2010
- 2010-10-14 CN CN2010205619072U patent/CN201815443U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101972728A (en) * | 2010-10-14 | 2011-02-16 | 深圳市宜极邦机电设备有限公司 | Volumetric quantitative jet valve |
| CN101972728B (en) * | 2010-10-14 | 2013-01-23 | 陈时雄 | Volumetric quantitative jet valve |
| CN105050730A (en) * | 2013-03-14 | 2015-11-11 | 武藏工业株式会社 | Liquid material discharge device, coating device thereof, and coating method |
| CN103464342A (en) * | 2013-08-30 | 2013-12-25 | 中南大学 | Jetting glue dispensing valve device and jetting glue dispensing method |
| CN103464342B (en) * | 2013-08-30 | 2015-11-18 | 中南大学 | A kind of spray site glue valve gear and spray site gluing method |
| CN103433178A (en) * | 2013-09-04 | 2013-12-11 | 吉林大学 | Piezoelectric-hydraulic control type dispensing device |
| CN107136561A (en) * | 2017-06-17 | 2017-09-08 | 常德烟草机械有限责任公司 | The glue cooling device and cooling means of a kind of cork paper |
| CN107136561B (en) * | 2017-06-17 | 2018-03-06 | 常德烟草机械有限责任公司 | The glue cooling device and cooling means of a kind of cork paper |
| CN111853253A (en) * | 2020-06-29 | 2020-10-30 | 王艳萍 | Cylinder control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20121014 |