US20130112711A1 - Direct air motor driven pump to dispense valve - Google Patents
Direct air motor driven pump to dispense valve Download PDFInfo
- Publication number
- US20130112711A1 US20130112711A1 US13/671,239 US201213671239A US2013112711A1 US 20130112711 A1 US20130112711 A1 US 20130112711A1 US 201213671239 A US201213671239 A US 201213671239A US 2013112711 A1 US2013112711 A1 US 2013112711A1
- Authority
- US
- United States
- Prior art keywords
- pump
- hot melt
- dispensing
- dispenser
- manifold
- 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.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
-
- 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
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess 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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
-
- 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
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1044—Apparatus or installations for supplying liquid or other fluent material to several applying apparatus or several dispensing outlets, e.g. to several extrusion nozzles
Definitions
- the present disclosure relates generally to systems for dispensing hot melt adhesive. More particularly, the present disclosure relates to a hot melt pump with sufficiently uniform dispensing rates and fewer components.
- Hot melt dispensing systems are typically used in manufacturing assembly lines to automatically dispense an adhesive used in the construction of packaging materials such as boxes, cartons and the like.
- Hot melt dispensing systems conventionally comprise a material tank, heating elements, a pump and a dispenser. Solid polymer pellets are melted in the tank using a heating element before being supplied to the dispenser by the pump. Because the melted pellets will re-solidify into solid form if permitted to cool, the melted pellets must be maintained at temperature from the tank to the dispenser. This typically requires placement of heating elements in the tank, the pump and the dispenser, as well as heating any tubing or hoses that connect those components.
- conventional hot melt dispensing systems typically utilize tanks having large volumes so that extended periods of dispensing can occur after the pellets contained therein are melted.
- the large volume of pellets within the tank requires a lengthy period of time to completely melt, which increases start-up times for the system.
- a typical tank includes a plurality of heating elements lining the walls of a rectangular, gravity-fed tank such that melted pellets along the walls prevents the heating elements from efficiently melting pellets in the center of the container.
- the extended time required to melt the pellets in these tanks increases the likelihood of “charring” or darkening of the adhesive due to prolonged heat exposure.
- a hot melt system includes a melt system, a feed system, and a dispensing system.
- the feed system transports hot melt pellets to the melt system.
- the melt system heats hot melt pellets into a liquid, which is then dispensed.
- the dispensing system includes a motor, a pump, and a dispenser. The pump is driven by the motor, and the dispenser is directly connected to the outlet of the pump.
- FIG. 1 is a schematic view of a system for dispensing hot melt adhesive.
- FIG. 2 is a partial perspective view of a system for dispensing hot melt adhesive with a pump directly connected to a manifold.
- FIG. 3 is a schematic view of a system for dispensing hot melt adhesive, the system having three dispense points.
- FIG. 1 is a schematic view of system 10 , which is a system for dispensing hot melt adhesive.
- System 10 includes cold section 12 , hot section 14 , air source 16 , air control valve 17 , and controller 18 .
- cold section 12 includes container 20 and feed assembly 22 , which includes vacuum assembly 24 , feed hose 26 , and inlet 28 .
- hot section 14 includes melt system 30 , pump 32 , and dispenser 34 .
- Air source 16 is a source of compressed air supplied to components of system 10 in both cold section 12 and hot section 14 .
- Air control valve 17 is connected to air source 16 via air hose 35 A, and selectively controls air flow from air source 16 through air hose 35 B to vacuum assembly 24 and through air hose 35 C to motor 36 of pump 32 .
- Air hose 35 D connects air source 16 to dispenser 34 , bypassing air control valve 17 .
- Controller 18 is connected in communication with various components of system 10 , such as air control valve 17 , melt system 30 , pump 32 , and/or dispenser 34 , for controlling operation of system 10 .
- Container 20 can be a hopper for containing a quantity of solid adhesive pellets for use by system 10 .
- Suitable adhesives can include, for example, a thermoplastic polymer glue such as ethylene vinyl acetate (EVA) or metallocene.
- Feed assembly 22 connects container 20 to hot section 14 for delivering the solid adhesive pellets from container 20 to hot section 14 .
- Feed assembly 22 includes vacuum assembly 24 and feed hose 26 .
- Vacuum assembly 24 is positioned in container 20 .
- Compressed air from air source 16 and air control valve 17 is delivered to vacuum assembly 24 to create a vacuum, inducing flow of solid adhesive pellets into inlet 28 of vacuum assembly 24 and then through feed hose 26 to hot section 14 .
- Feed hose 26 is a tube or other passage sized with a diameter substantially larger than that of the solid adhesive pellets to allow the solid adhesive pellets to flow freely through feed hose 26 .
- Feed hose 26 connects vacuum assembly 24 to hot section 14 .
- Solid adhesive pellets are delivered from feed hose 26 to melt system 30 .
- Melt system 30 can include a container (not shown) and resistive heating elements (not shown) for melting the solid adhesive pellets to form a hot melt adhesive in liquid form.
- Melt system 30 can be sized to have a relatively small adhesive volume, for example about 0.5 liters, and configured to melt solid adhesive pellets in a relatively short period of time.
- Pump 32 is driven by motor 36 to pump hot melt adhesive from melt system 30 , through supply hose 38 , and deliver it to dispenser 34 .
- Motor 36 can be an air motor driven by compressed air from air source 16 and air control valve 17 .
- Pump 32 can be a linear displacement pump driven by motor 36 .
- dispenser 34 includes manifold 40 and dispensing module 42 .
- Hot melt adhesive from pump 32 is received in manifold 40 and dispensed via dispensing module 42 .
- Dispenser 34 can selectively discharge hot melt adhesive whereby the hot melt adhesive is sprayed out outlet 44 of dispensing module 42 onto an object, such as a package, a case, or another object benefiting from hot melt adhesive dispensed by system 10 .
- Dispensing module 42 can be one of multiple dispensing modules that are part of dispenser 34 .
- dispenser 34 can have a different configuration, such as a handheld gun-type dispenser.
- Some or all of the components in hot section 14 including melt system 30 , supply hose 38 , pump 32 , and dispenser 34 , can be heated to keep the hot melt adhesive in a liquid state throughout hot section 14 during the dispensing process.
- System 10 can be part of an industrial process, for example, for packaging and sealing cardboard packages and/or cases of packages.
- system 10 can be modified as necessary for a particular industrial process application.
- pump 32 can be separated from dispenser 34 and instead attached to melt system 30 .
- Supply hose 38 can then connect pump 32 to dispenser 34 .
- FIG. 2 is a partial perspective view of system 10 , showing pump 32 (with pump inlet 48 and pump outlet 50 ), dispenser 34 , and motor 36 .
- Dispenser 34 includes manifold 40 and dispensing module 42 .
- motor 36 is an air motor, which drives shaft 52 in a reciprocating motion to drive a linear piston pump comprising pump 32 .
- NXT® air motors and MERKUR® pumps that are commercially available from Graco Inc. may be used as motor 36 and pump 32 , respectively.
- Pump 32 has a changeover time, which is the amount of time that the pump takes to reverse direction.
- pump 32 has a slower speed as compared to when shaft 52 is moving between its extreme positions.
- the amount of time pump 32 takes to change directions is preferably less than 250 milliseconds, more preferably less than 150 milliseconds, and even more preferably less than 100 milliseconds.
- Shaft 52 connects air motor 36 to pump 32 .
- Pump inlet 48 is connected to melt system 30 ( FIG. 1 ).
- Dispenser 34 is directly connected to pump 32 at pump outlet 50 via pipe 54 , without an intervening accumulation hose or other device or structure that provides accumulation. Directly coupled indicates that a fluid passage of fixed or constant volume (e.g. non-expandable) is positioned between pump outlet 50 and dispenser 34 .
- Pipe 54 is rigid, such as from being fabricated from steel or aluminum, so as to resist flexing.
- a housing for pump 32 and a housing for manifold 40 can be fabricated from the same material, as an integral or monolithic component.
- pipe 54 may be a hole cut through the integral or monolithic component.
- pump 32 will take in liquefied adhesive at pump inlet 48 .
- the liquefied adhesive is pumped directly to dispenser 34 via pipe 48 and pump outlet 50 , and through manifold 40 to dispensing module 42 , where it is dispensed through outlet 44 .
- the embodiment shown in FIG. 2 does not include an accumulation hose between pump 32 and dispenser 34 . By utilizing a pump with low changeover time, the accumulation hose is no longer necessary to provide suitable uniformity of dispensing rates for many applications.
- a dispenser has no accumulator, and the manifold is directly connected to the pump.
- FIG. 3 is a schematic diagram of a portion of system 10 .
- FIG. 3 shows pump 32 , dispenser 34 , and motor 36 .
- pump 32 is connected to both dispenser 34 and motor 36 .
- Dispenser 34 includes manifold 40 , dispensing modules 42 , and outlets 44 .
- there are three dispensing modules 42 In the embodiment shown in FIG. 3 , there are three dispensing modules 42 .
- One dispensing module 42 is attached directly to manifold 40 , as shown in FIG. 2 .
- two dispensing modules 42 are connected to manifold 40 by hoses 46 .
- hoses 46 will have some accumulation effect due to elasticity of the material that makes up the hose.
- hoses 46 may be made of an elastomer such as vulcanized rubber, or a metal, each of which has some elasticity.
- the invention includes those embodiments of system 10 which have hoses capable of accumulation effect downstream of manifold 40 .
- FIG. 3 there is no accumulation hose between pump 32 and manifold 40 , and none between manifold 40 and one of dispensing modules 42 .
- FIG. 3 shows that multiple dispensers 34 may be included within system 10 .
- Dispensers 34 may be connected to manifold 40 either directly or through an intermediate structure, such as hoses 46 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/671,239 US20130112711A1 (en) | 2011-11-07 | 2012-11-07 | Direct air motor driven pump to dispense valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161556541P | 2011-11-07 | 2011-11-07 | |
US13/671,239 US20130112711A1 (en) | 2011-11-07 | 2012-11-07 | Direct air motor driven pump to dispense valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130112711A1 true US20130112711A1 (en) | 2013-05-09 |
Family
ID=48223020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/671,239 Abandoned US20130112711A1 (en) | 2011-11-07 | 2012-11-07 | Direct air motor driven pump to dispense valve |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130112711A1 (zh) |
TW (1) | TW201345828A (zh) |
WO (1) | WO2013070720A1 (zh) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140311404A1 (en) * | 2013-04-17 | 2014-10-23 | Krones Ag | Glue reservoir for hotmelt applications |
US9061316B2 (en) | 2011-10-28 | 2015-06-23 | Nordson Corporation | Mountable device for dispensing heated adhesive |
US9120115B2 (en) | 2012-10-25 | 2015-09-01 | Nordson Corporation | Dispensing systems and methods for monitoring actuation signals for diagnostics |
US9169088B2 (en) | 2012-09-20 | 2015-10-27 | Nordson Corporation | Adhesive dispensing device having optimized cyclonic separator unit |
US9200741B2 (en) | 2012-10-25 | 2015-12-01 | Nordson Corporation | Adhesive dispensing system and method using smart melt heater control |
US9243626B2 (en) | 2012-11-19 | 2016-01-26 | Nordson Corporation | Adhesive dispensing system and method including a pump with integrated diagnostics |
US9304028B2 (en) | 2012-09-20 | 2016-04-05 | Nordson Corporation | Adhesive dispensing device having optimized reservoir and capacitive level sensor |
US9574714B2 (en) | 2013-07-29 | 2017-02-21 | Nordson Corporation | Adhesive melter and method having predictive maintenance for exhaust air filter |
US9776342B2 (en) | 2006-01-17 | 2017-10-03 | Nordson Corporation | Apparatus and method for melting and dispensing thermoplastic material |
US10099242B2 (en) | 2012-09-20 | 2018-10-16 | Nordson Corporation | Adhesive melter having pump mounted into heated housing |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103979221B (zh) * | 2014-05-22 | 2016-04-06 | 陈洁 | 一种用于小型电机的收纳盒 |
CN104646237B (zh) * | 2015-02-14 | 2017-10-31 | 芜湖嘉益机械设备有限公司 | 一种涂布装置 |
CN107321569A (zh) * | 2017-06-14 | 2017-11-07 | 余雷 | 一种叶轮式无堵塞自洗泵 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792801A (en) * | 1971-10-29 | 1974-02-19 | Nordson Corp | Thermoplastic applicator with self-cleaning supply reservoir |
US3827603A (en) * | 1972-06-01 | 1974-08-06 | Nordson Corp | Thermoplastic applicator system in which the pump back-pressure controls the dispensing outlet |
US4456151A (en) * | 1981-09-14 | 1984-06-26 | Nordson Corporation | Housing for apparatus for melting and dispensing thermoplastic material |
US4778631A (en) * | 1985-10-02 | 1988-10-18 | Nordson Corporation | Method and apparatus for foaming high viscosity polymer materials |
US6131770A (en) * | 1998-10-15 | 2000-10-17 | Nordson Corporation | Hot melt delivery system |
US6630028B2 (en) * | 2000-12-08 | 2003-10-07 | Glass Equipment Development, Inc. | Controlled dispensing of material |
US6883684B2 (en) * | 2001-10-29 | 2005-04-26 | Nordson Corporation | Hot melt adhesive system having centralized manifold and zone heating capability |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4535919A (en) * | 1981-08-19 | 1985-08-20 | Nordson Corporation | Hot melt adhesive system |
US4779762A (en) * | 1984-05-30 | 1988-10-25 | Nordson Corporation | Method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam |
-
2012
- 2012-11-07 WO PCT/US2012/063892 patent/WO2013070720A1/en active Application Filing
- 2012-11-07 TW TW101141468A patent/TW201345828A/zh unknown
- 2012-11-07 US US13/671,239 patent/US20130112711A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3792801A (en) * | 1971-10-29 | 1974-02-19 | Nordson Corp | Thermoplastic applicator with self-cleaning supply reservoir |
US3827603A (en) * | 1972-06-01 | 1974-08-06 | Nordson Corp | Thermoplastic applicator system in which the pump back-pressure controls the dispensing outlet |
US4456151A (en) * | 1981-09-14 | 1984-06-26 | Nordson Corporation | Housing for apparatus for melting and dispensing thermoplastic material |
US4778631A (en) * | 1985-10-02 | 1988-10-18 | Nordson Corporation | Method and apparatus for foaming high viscosity polymer materials |
US6131770A (en) * | 1998-10-15 | 2000-10-17 | Nordson Corporation | Hot melt delivery system |
US6630028B2 (en) * | 2000-12-08 | 2003-10-07 | Glass Equipment Development, Inc. | Controlled dispensing of material |
US6883684B2 (en) * | 2001-10-29 | 2005-04-26 | Nordson Corporation | Hot melt adhesive system having centralized manifold and zone heating capability |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9776342B2 (en) | 2006-01-17 | 2017-10-03 | Nordson Corporation | Apparatus and method for melting and dispensing thermoplastic material |
US10363686B2 (en) | 2006-01-17 | 2019-07-30 | Nordson Corporation | Apparatus and method for melting and dispensing thermoplastic material |
US9061316B2 (en) | 2011-10-28 | 2015-06-23 | Nordson Corporation | Mountable device for dispensing heated adhesive |
US20150174603A1 (en) * | 2011-10-28 | 2015-06-25 | Nordson Corporation | Mountable Device For Dispensing Heated Adhesive |
US10099242B2 (en) | 2012-09-20 | 2018-10-16 | Nordson Corporation | Adhesive melter having pump mounted into heated housing |
US9540189B2 (en) | 2012-09-20 | 2017-01-10 | Nordson Corporation | Adhesive dispensing device having optimized cyclonic separator unit |
US10099243B2 (en) | 2012-09-20 | 2018-10-16 | Nordson Corporation | Adhesive dispensing device having optimized reservoir and capacitive level sensor |
US9304028B2 (en) | 2012-09-20 | 2016-04-05 | Nordson Corporation | Adhesive dispensing device having optimized reservoir and capacitive level sensor |
US10596588B2 (en) | 2012-09-20 | 2020-03-24 | Nordson Corporation | Adhesive melter having pump mounted into heated housing |
US9169088B2 (en) | 2012-09-20 | 2015-10-27 | Nordson Corporation | Adhesive dispensing device having optimized cyclonic separator unit |
US9200741B2 (en) | 2012-10-25 | 2015-12-01 | Nordson Corporation | Adhesive dispensing system and method using smart melt heater control |
US9120115B2 (en) | 2012-10-25 | 2015-09-01 | Nordson Corporation | Dispensing systems and methods for monitoring actuation signals for diagnostics |
US9475083B2 (en) | 2012-10-25 | 2016-10-25 | Nordson Corporation | Adhesive dispensing system and method using smart melt heater control |
US10150137B2 (en) | 2012-10-25 | 2018-12-11 | Nordson Corporation | Adhesive dispensing system and method using smart melt heater control |
US9476419B2 (en) | 2012-11-19 | 2016-10-25 | Nordson Corporation | Adhesive dispensing system and method including a pump with integrated diagnostics |
US9243626B2 (en) | 2012-11-19 | 2016-01-26 | Nordson Corporation | Adhesive dispensing system and method including a pump with integrated diagnostics |
US9862516B2 (en) * | 2013-04-17 | 2018-01-09 | Krones Ag | Glue reservoir for hotmelt applications |
US20140311404A1 (en) * | 2013-04-17 | 2014-10-23 | Krones Ag | Glue reservoir for hotmelt applications |
US9574714B2 (en) | 2013-07-29 | 2017-02-21 | Nordson Corporation | Adhesive melter and method having predictive maintenance for exhaust air filter |
US9889996B2 (en) | 2013-07-29 | 2018-02-13 | Nordson Corporation | Adhesive melter and method having predictive maintenance for exhaust air filter |
Also Published As
Publication number | Publication date |
---|---|
WO2013070720A1 (en) | 2013-05-16 |
TW201345828A (zh) | 2013-11-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20130112711A1 (en) | Direct air motor driven pump to dispense valve | |
US8985391B2 (en) | Vacuum system feed assist mechanism | |
US20130112312A1 (en) | Reversible flow inducer | |
US20130112294A1 (en) | Hot melt tank and check valve | |
US20130112280A1 (en) | Automatic gate valve for hot melt adhesive lines | |
US20130115016A1 (en) | Quick change hopper | |
US20130112709A1 (en) | Melting system | |
US20130105004A1 (en) | Hot melt dispensing system with heated accumulator | |
US7441568B2 (en) | Rechargeable dispensing head | |
JP6530159B2 (ja) | 可変周波数駆動部及び閉ループフィードバック制御部を備える計量システムを有する接着剤吐出システム | |
US20130112279A1 (en) | Hot melting system | |
US20090084816A1 (en) | Two component metering pump assembly | |
US20140117047A1 (en) | Pressure relief for adhesive dispensing system | |
WO2014065836A1 (en) | Vacuum and shaker for a hot melt system | |
US20140120254A1 (en) | Feed cap | |
US20140263451A1 (en) | Variable orifice outlet assembly | |
US20170239678A1 (en) | Quick release solenoid assembly | |
US20140263452A1 (en) | Melting system | |
US20140170581A1 (en) | Shroud for de-icing air motor of hot melt dispensing system | |
CN208592029U (zh) | 一种用于分配流体的波纹管系统 | |
WO2014098801A1 (en) | Shroud for de-icing air motor of hot melt dispensing system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GRACO MINNESOTA INC., MINNESOTA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIND, ROBERT J.;QUAM, PAUL R.;ROSS, DANIEL P.;SIGNING DATES FROM 20121204 TO 20121205;REEL/FRAME:029411/0160 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |