CN110976209A - LED dispensing equipment for manufacturing light-emitting diode - Google Patents
LED dispensing equipment for manufacturing light-emitting diode Download PDFInfo
- Publication number
- CN110976209A CN110976209A CN201911272082.4A CN201911272082A CN110976209A CN 110976209 A CN110976209 A CN 110976209A CN 201911272082 A CN201911272082 A CN 201911272082A CN 110976209 A CN110976209 A CN 110976209A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- valve body
- valve
- needle
- glue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- 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
- B05C5/0225—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 characterised by flow controlling means, e.g. valves, located proximate the outlet
- B05C5/0237—Fluid actuated valves
-
- 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
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
-
- 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
- B05C5/0208—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 for applying liquid or other fluent material to separate articles
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention relates to the technical field of dispensing equipment and discloses LED dispensing equipment for manufacturing a light-emitting diode, which comprises an upper valve body, wherein one side of the upper valve body is fixedly connected with an air inlet, a piston is movably sleeved in the upper valve body, the upper part of the piston is fixedly connected with a large spring, the upper part of the large spring is fixedly connected with a fine adjustment button, the upper part of the other side of the upper valve body is fixedly connected with an air outlet, and the bottom of the piston is fixedly connected with a valve needle. Through the bottom of capsule and lower valve body fixed sealing connection, because the capsule is elasticity bellows spare, promote the ascending in-process of drive needle fast at the piston, the needle drives the capsule tensile for although the ascending displacement volume of needle is less, the tensile meeting of capsule provides sufficient negative pressure, and timely resorption glue solution solves the problem that the negative pressure that produces by the needle rises is not enough, guarantees that the resorption is timely, and the condition that can not appear dripping glue, leaking glue takes place.
Description
Technical Field
The invention relates to the technical field of dispensing equipment, in particular to LED dispensing equipment for manufacturing a light-emitting diode.
Background
The current common dispensing machine equipment for the light-emitting diode is used for dispensing conductive silver paste and insulating paste, a dispensing valve is the most important work execution part in the dispensing machine, the dispensing valve is divided into a thimble type dispensing valve, a plunger type dispensing valve, a diaphragm type dispensing valve, an AB double-liquid dispensing valve, a rotary type dispensing valve and the like, wherein the thimble type dispensing valve is common, and the working principle is as shown in figure 8: the glue pressing barrel presses the glue solution from top to bottom into the glue inlet 11, and when the valve of the glue inlet 11 is opened, the piston 3 drives the valve needle 7 to move upwards under the pushing of compressed gas, so that glue dispensing is realized; when the valve of the glue inlet 11 is closed, the piston 3 is pushed by compressed gas to be quickly lifted upwards, negative pressure can be generated in the inner cavity of the valve chamber, and glue materials which drip downwards are timely pulled, so that instant glue breaking is realized.
But the ejector pin type dispensing valve has the following defects in the actual use process:
1. the valve body drives the needle and goes out to glue the mouth contact and carry out disconnected glue through the resilience of big spring when closing, and the needle can directly impact out to glue the mouth this moment, can cause the needle or go out to glue mouthful damage after the point gum valve is strikeed for a long time, causes disconnected glue incomplete, appears dripping glue at the point gum during operation, the phenomenon of wire drawing.
2. Because glue from last down gets into, lead to the piston at the quick promotion in-process, glue has downward velocity of motion this moment, appears the negative pressure in valve department, produces air bubble or vacuum bubble, leads to the point of glue dispenser to appear the dead point at the during operation, and the condition of leak source influences production efficiency.
3. Because the valve chamber inner chamber is whole to produce the negative pressure by the quick upward movement of needle, prevents to drip, the hourglass is glued, and the in-service use in-process is because the distance that the needle reciprocated is less, and the needle is thinner, is difficult to produce sufficient negative pressure, and the condition that drips, leak and glue still can appear in the point gluey in-process takes place.
4. When the instant adhesive is used for dispensing, the glue is easy to solidify in the needle head, so that the glue is blocked to influence the smoothness of dispensing, the dispensing amount is reduced, even the dispensing is not performed, and the precision and the quality of dispensing are seriously influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the LED dispensing equipment for manufacturing the light-emitting diode, which has the advantages of good glue discharging effect, prevention of vacuum bubbles and air bubbles in the dispensing valve, and prevention of glue dripping and glue leakage, and solves the problems in the prior art.
The invention provides the following technical scheme: an LED dispensing device for manufacturing a light emitting diode comprises an upper valve body, wherein an air inlet is fixedly connected to one side of the upper valve body, a piston is movably sleeved in the upper valve body, a large spring is fixedly connected to the upper portion of the piston, a fine adjustment button is fixedly connected to the upper portion of the large spring, an air outlet is fixedly connected to the upper portion of the other side of the upper valve body, a valve needle is fixedly connected to the bottom of the piston, the valve needle is movably sleeved in a lower valve body fixedly connected to the upper valve body, a glue outlet is fixedly connected to the bottom of the lower valve body, a glue outlet nozzle is fixedly connected to the bottom of the glue outlet, a glue inlet is fixedly connected to one side of the lower valve body, a circulation hole is formed in the other side of the lower valve body, a valve seat is movably sleeved at the bottom of the valve needle, a capsule fixedly connected to the valve needle is arranged, the upper part of the base is fixedly connected with a small spring surrounding the valve needle, and the upper part of the small spring is fixedly connected with a valve core matched with the lower through hole of the valve seat.
Preferably, the bottom of the valve needle is not in contact with the inner cavity of the lower valve body.
Preferably, one end of the valve seat is provided with a through hole communicated with the glue inlet, and a buffer cavity is arranged inside the valve seat.
Preferably, the bottom of the capsule is fixedly and hermetically connected with the lower valve body, and the capsule is an elastic corrugated pipe piece.
Preferably, the upper part of the capsule is in communication with a flow hole, which can be externally connected to a hot water tank or directly in communication with the air.
Preferably, the upper part of the valve core is provided with an annular sealing rubber gasket.
The invention has the following beneficial effects:
1. the opening and closing of the valve core and the valve seat replace the opening and closing of the existing valve needle and the glue outlet, so that the bottom of the valve needle is in a suspension state, the valve needle does not contact with the valve body in the up-and-down movement adjustment process, and the damage caused by the contact impact of the valve needle and the glue outlet is avoided.
2. Through being provided with the cushion chamber in the disk seat inside, the glue that advances is pressed in from advancing gluey mouthful cushions at the inside cushion chamber of disk seat before getting into the valve chamber for glue is less in the quick speed that promotes of piston downstream, disappears even, guarantees that the needle can not produce vacuum bubble and bubble at the in-process that rises, prevents that the condition that the point gum machine appearance dead center, leak source from taking place.
3. Through the bottom of capsule and lower valve body fixed sealing connection, because the capsule is elasticity bellows spare, promote the ascending in-process of drive needle fast at the piston, the needle drives the capsule tensile for although the ascending displacement volume of needle is less, the tensile meeting of capsule provides sufficient negative pressure, and timely resorption glue solution solves the problem that the negative pressure that produces by the needle rises is not enough, guarantees that the resorption is timely, and the condition that can not appear dripping glue, leaking glue takes place.
4. Because the upper cavity of the capsule is communicated with the hot water tank through the circulation hole, proper hot water can be introduced into the dispensing valve to heat the glue inside the dispensing valve during the instantaneous glue dispensing operation process, so that the viscosity of the glue is reduced and the glue is dissolved, the problem that the glue is solidified inside the needle head is solved, the dispensing valve is prevented from being blocked, and the work efficiency of glue dispensing is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention during valve needle lift;
FIG. 3 is an enlarged view of the structure at A of the present invention;
FIG. 4 is an enlarged view of the structure at B of the present invention;
FIG. 5 is a schematic structural view of the present invention;
FIG. 6 is a schematic view of a valve seat constructed in accordance with the present invention;
FIG. 7 is a schematic cross-sectional view of a valve seat constructed in accordance with the present invention;
fig. 8 is a schematic diagram of a conventional structure.
In the figure: 1. an upper valve body; 2. an air inlet; 3. a piston; 4. a large spring; 5. an air outlet; 6. a fine adjustment button; 7. a valve needle; 8. a lower valve body; 9. a glue outlet; 10. a glue outlet nozzle; 11. a glue inlet; 12. a flow-through hole; 13. a valve seat; 14. a capsule; 15. a base; 16. a small spring; 17. a valve core.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, an LED dispensing device for manufacturing a light emitting diode comprises an upper valve body 1, an air inlet 2 fixedly connected to one side of the upper valve body 1, a piston 3 movably sleeved inside the upper valve body 1, a large spring 4 fixedly connected to the upper portion of the piston 3, a fine adjustment button 6 fixedly connected to the upper portion of the large spring 4, an air outlet 5 fixedly connected to the upper portion of the other side of the upper valve body 1, a valve needle 7 fixedly connected to the bottom of the piston 3, the valve needle 7 movably sleeved inside a lower valve body 8 fixedly connected to the upper valve body 1, a glue outlet 9 fixedly connected to the bottom of the lower valve body 8, a glue outlet nozzle 10 fixedly connected to the bottom of the glue outlet 9, a glue inlet 11 fixedly connected to one side of the lower valve body 8, a circulation hole 12 formed in the other side of the lower valve body 8, a valve seat 13 movably sleeved on the bottom of the valve needle 7, a capsule 14, the side surface of the bottom end of the valve needle 7 is fixedly connected with a base 15, the upper part of the base 15 is fixedly connected with a small spring 16 surrounding the valve needle 7, and the upper part of the small spring 16 is fixedly connected with a valve core 17 matched with a lower through hole of the valve seat 13.
Wherein, the bottom of needle 7 and 8 inside cavities of lower valve body are contactless, and the closure of opening through case 17 and disk seat 13 has replaced opening and closure of current needle 7 and play jiao kou 9 for needle 7 bottom is in unsettled state, moves up the in-process of adjusting with lower valve body 8 contact at needle 7, has avoided the damage that is caused by needle and play jiao kou 9 contact impact.
Wherein, the through-hole with advancing gluey mouth 11 intercommunication is seted up to the one end of disk seat 13, and disk seat 13 is inside to be provided with the cushion chamber, and the glue that advances from advancing gluey mouth 11 in the pressure cushions in the inside cushion chamber of disk seat 13 before getting into the valve chamber for glue is less, disappear even at the speed of the downstream in piston 3 promotes fast, guarantees that valve needle 7 can not produce vacuum bubble and bubble at the rising in-process, prevents that the condition that the point gum machine appears the dead spot, the leak source from taking place.
Wherein, capsule 14's bottom and lower valve body 8 fixed sealing connection, capsule 14 is elasticity bellows spare, promotes the lift in-process that drives needle 7 fast at piston 3, and needle 7 drives capsule 14 tensile for although the lift displacement volume of needle 7 is less, nevertheless capsule 14's tensile can provide sufficient negative pressure, and the glue solution is inhaled in time to the resorption, solves the not enough problem of negative pressure of the ascending production by needle 7, guarantees that the resorption is in time, the condition that can not appear dripping glue, leak the glue takes place.
The upper part of the capsule 14 is communicated with the circulation hole 12, the outside of the circulation hole 12 can be connected with a hot water tank or directly communicated with air, and the cavity at the upper part of the capsule 14 is communicated with the hot water tank, so that proper hot water can be introduced into the dispensing valve to heat glue in the dispensing valve during the instantaneous glue dispensing operation process, the viscosity of the glue is reduced, the glue is dissolved, the problem that the glue is solidified in the needle head is solved, the blocking of the dispensing valve is avoided, and the dispensing efficiency is improved.
Wherein, the upper part of the valve core 17 is provided with an annular sealing rubber pad, and the rubber pad is expanded and deformed to be in full contact with the valve seat 13 for sealing by the extrusion of the small spring 16, so that the best sealing effect is realized.
According to the working principle, when glue is discharged, the glue solution is pressed into the valve seat 13 through the glue pressing barrel, the piston 3 is not moved at the moment, the glue solution extrudes the valve core 17, the small spring 16 is contracted, and the glue is discharged; after the primary dispensing operation is finished, the compressed air extrudes the piston 3 to drive the valve needle 7 to be quickly lifted, so that the small spring 16 and the valve core 17 move upwards to close the valve seat 13 to quickly break glue, meanwhile, the capsule 14 moves upwards to generate larger negative pressure, so that the glue in the glue outlet nozzle 10 can be quickly sucked back, the situations of glue dripping and glue leakage are avoided, and the piston 3 is restored under the action of the large spring 4 to perform the secondary dispensing operation during the secondary dispensing operation; when the dispensing valve stops working, the glue inlet 11 does not feed glue any more, and at the moment, the valve core 17 blocks the valve seat 13 under the action of the small spring 16 to cut off the glue.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The LED dispensing equipment for manufacturing the light-emitting diode comprises an upper valve body (1), wherein an air inlet (2) is fixedly connected to one side of the upper valve body (1), a piston (3) is movably sleeved inside the upper valve body (1), a large spring (4) is fixedly connected to the upper portion of the piston (3), a fine adjustment button (6) is fixedly connected to the upper portion of the large spring (4), an air outlet (5) is fixedly connected to the upper portion of the other side of the upper valve body (1), a valve needle (7) is fixedly connected to the bottom of the piston (3), the valve needle (7) is movably sleeved inside a lower valve body (8) fixedly connected with the upper valve body (1), a glue outlet (9) is fixedly connected to the bottom of the lower valve body (8), a glue outlet nozzle (10) is fixedly connected to the bottom of the glue outlet (9), a glue inlet (11) is fixedly connected to one side of the lower valve body (8), the method is characterized in that: the valve is characterized in that a circulation hole (12) is formed in the other side of the lower valve body (8), a valve seat (13) is movably sleeved at the bottom of the valve needle (7), a capsule (14) fixedly connected with the valve needle (7) is arranged above the valve seat (13), a base (15) is fixedly connected to the side face of the bottom end of the valve needle (7), a small spring (16) surrounding the valve needle (7) is fixedly connected to the upper portion of the base (15), and a valve core (17) matched with the lower through hole of the valve seat (13) is fixedly connected to the upper portion of the small spring (16).
2. The LED dispensing device for LED fabrication according to claim 1, wherein: the bottom of the valve needle (7) is not contacted with the inner cavity of the lower valve body (8).
3. The LED dispensing device for LED fabrication according to claim 1, wherein: one end of the valve seat (13) is provided with a through hole communicated with the glue inlet (11), and a buffer cavity is arranged inside the valve seat (13).
4. The LED dispensing device for LED fabrication according to claim 1, wherein: the bottom of the capsule (14) is fixedly and hermetically connected with the lower valve body (8), and the capsule (14) is an elastic corrugated pipe.
5. The LED dispensing device for LED fabrication according to claim 1, wherein: the upper part of the capsule (14) is communicated with a through hole (12), and the outside of the through hole (12) can be connected with a water tank or directly communicated with the air.
6. The LED dispensing device for LED fabrication according to claim 1, wherein: and an annular sealing rubber gasket is arranged at the upper part of the valve core (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272082.4A CN110976209A (en) | 2019-12-12 | 2019-12-12 | LED dispensing equipment for manufacturing light-emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911272082.4A CN110976209A (en) | 2019-12-12 | 2019-12-12 | LED dispensing equipment for manufacturing light-emitting diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110976209A true CN110976209A (en) | 2020-04-10 |
Family
ID=70092681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911272082.4A Withdrawn CN110976209A (en) | 2019-12-12 | 2019-12-12 | LED dispensing equipment for manufacturing light-emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110976209A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275545A (en) * | 2020-10-15 | 2021-01-29 | 南京宁燕商贸有限公司 | Intelligent dispenser for telephone core board based on intelligent manufacturing |
| CN112517328A (en) * | 2020-12-16 | 2021-03-19 | 杭州漓昭通讯技术有限公司 | Auxiliary device for automatically detecting and dripping glue by computer microchip for software development |
| CN113828483A (en) * | 2021-10-22 | 2021-12-24 | 陈王强 | Dispensing valve for dispensing machine |
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
| CN114226092A (en) * | 2021-12-16 | 2022-03-25 | 蒋恒 | Glue coating device and using method thereof |
| CN114700223A (en) * | 2022-04-11 | 2022-07-05 | 江西奥普照明有限公司 | LED panel light dispensing mechanism |
| CN115155954A (en) * | 2022-07-13 | 2022-10-11 | 刘建平 | Dispensing equipment for integrated circuit production and processing |
| CN117358522A (en) * | 2023-12-05 | 2024-01-09 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
| GB2623177A (en) * | 2022-08-24 | 2024-04-10 | Porsche Ag | Injection assembly for feeding viscous filler material as well as method for injection |
-
2019
- 2019-12-12 CN CN201911272082.4A patent/CN110976209A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112275545A (en) * | 2020-10-15 | 2021-01-29 | 南京宁燕商贸有限公司 | Intelligent dispenser for telephone core board based on intelligent manufacturing |
| CN112517328A (en) * | 2020-12-16 | 2021-03-19 | 杭州漓昭通讯技术有限公司 | Auxiliary device for automatically detecting and dripping glue by computer microchip for software development |
| CN113828483A (en) * | 2021-10-22 | 2021-12-24 | 陈王强 | Dispensing valve for dispensing machine |
| CN113926649A (en) * | 2021-10-22 | 2022-01-14 | 陈王强 | Suck-back dispensing valve for dispensing machine |
| CN113926649B (en) * | 2021-10-22 | 2022-09-06 | 中山市普隆半导体设备有限公司 | Suck-back dispensing valve for dispensing machine |
| CN114226092A (en) * | 2021-12-16 | 2022-03-25 | 蒋恒 | Glue coating device and using method thereof |
| CN114700223A (en) * | 2022-04-11 | 2022-07-05 | 江西奥普照明有限公司 | LED panel light dispensing mechanism |
| CN115155954A (en) * | 2022-07-13 | 2022-10-11 | 刘建平 | Dispensing equipment for integrated circuit production and processing |
| CN115155954B (en) * | 2022-07-13 | 2024-01-12 | 优百顺集团有限公司 | Dispensing equipment for integrated circuit production and processing |
| GB2623177A (en) * | 2022-08-24 | 2024-04-10 | Porsche Ag | Injection assembly for feeding viscous filler material as well as method for injection |
| CN117358522A (en) * | 2023-12-05 | 2024-01-09 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
| CN117358522B (en) * | 2023-12-05 | 2024-03-08 | 福建省统一环保科技有限公司 | High-efficiency low-consumption glue gun |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110976209A (en) | LED dispensing equipment for manufacturing light-emitting diode | |
| CN109590165B (en) | Dispensing valve for dispensing machine | |
| CN205463011U (en) | Adhesive deposite device with resorption formula point plastic pin | |
| CN105149167B (en) | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve | |
| CN201482680U (en) | Firing pin valve | |
| CN205731828U (en) | A kind of negative pressure feedback resorption ejector pin type glue dispensing valve | |
| CN105923253A (en) | Press-type foam pump and discharge rate control method thereof | |
| CN111017399A (en) | Self-sealing pump head cap | |
| CN109159384A (en) | Accurate automobile grills mold weldless trace injection structure | |
| CN212175956U (en) | Air-compensating structure of pressure water tank | |
| CN205270863U (en) | Molten metal 3D prints shower nozzle | |
| CN208197417U (en) | A kind of novel sealing structure of liquid silica gel injection molding | |
| CN215359684U (en) | Injection mould | |
| CN204647327U (en) | High-cleanness thermal loading valve | |
| CN201538004U (en) | Oil-tight mould | |
| CN210353642U (en) | Quick reloading bottle | |
| CN208745224U (en) | A kind of detachable high-precision mold of even light guide tabula rasa | |
| CN213064641U (en) | Humidifier with double sealing assemblies | |
| CN205800215U (en) | A kind of scraper coating automatic liquid supply device | |
| CN215940462U (en) | Novel pneumatic dispensing valve | |
| CN113828483B (en) | Dispensing valve for dispensing machine | |
| CN214875748U (en) | Anti-foam filling head | |
| CN210872414U (en) | External pump for eye drops | |
| CN221234164U (en) | Cavity self-sucking drip-proof splash-proof filling valve | |
| CN218111479U (en) | Discharging device for injection molding foaming machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200410 |