EP4161864A1 - Apparatus for conveying viscous material - Google Patents
Apparatus for conveying viscous materialInfo
- Publication number
- EP4161864A1 EP4161864A1 EP21745819.9A EP21745819A EP4161864A1 EP 4161864 A1 EP4161864 A1 EP 4161864A1 EP 21745819 A EP21745819 A EP 21745819A EP 4161864 A1 EP4161864 A1 EP 4161864A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- follower plate
- ventilation
- lifting
- interior
- 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.)
- Granted
Links
- 239000011345 viscous material Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000009423 ventilation Methods 0.000 claims description 45
- 238000013022 venting Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 238000005273 aeration Methods 0.000 abstract 5
- 241000196324 Embryophyta Species 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/58—Arrangements of pumps
- B67D7/62—Arrangements of pumps power operated
- B67D7/64—Arrangements of pumps power operated of piston type
- B67D7/645—Barrel pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
- F04B23/028—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir the pump being mounted on top of the reservoir
Definitions
- the invention relates to a device for conveying viscous material from a barrel-like container.
- Such devices are used, for example, for applying adhesives, sealants, insulating materials or thermally conductive pastes to workpieces, in particular to bodywork components in the production of motor vehicles.
- the viscous material is conveyed out of the container by means of a pump via a material outlet opening, with a follower plate having the material outlet opening being constantly held in contact with a surface of the material in the container by means of a lifting and lowering device and being lowered by means of the lifting and lowering device to the falling material level in the container.
- the follower plate is sealed with respect to the container shell, so that on the one hand no material can escape from the container and on the other hand no air from the environment can penetrate into the container.
- the container is emptied, it is exchanged for a new, full container, the follower plate first being moved upwards out of the emptied container and then being inserted into the full container now positioned below it until it rests on the viscous material and the conveying process can begin.
- the follower plate when inserting the follower plate into the full container, it is inevitable that air will become trapped between the follower plate and the viscous material, which air must be removed before the viscous material can be pumped out of the container.
- the circumference of the follower plate rests in a sealed manner on the inner surface of the container shell facing the inside of the container, see above that a force must be applied when it is lowered to the surface of the viscous material.
- the invention is based on the idea of automatically switching between a movement mode, in which the support rod or the support rods is/are lowered, in particular by a motor, and a ventilation mode, in which the ventilation device allows air to escape from the interior of the container through the ventilation opening(s). ) is sucked off.
- the follower plate is mounted in a floating manner with respect to the lifting and lowering device and is vertically movable with respect to this to a limited extent.
- the floating bearing is arranged between the follower plate and the at least one retaining rod, so that the follower plate can be moved to a limited extent vertically with respect to the at least one retaining rod, or for it to be positioned between the at least one retaining rod and a vertically movable retaining rod ( n) supporting support element of the lifting and lowering device is arranged so that it is vertical in relation to the support element limited is movable, so that by generating a negative pressure inside the container, the follower plate is pulled further into the interior of the container and the at least one holding rod or the support element remains in its position and then, when the pumping out of air is complete, tracked to become. These steps are repeated alternately until the follower plate rests on the viscous material.
- the follower plate is expediently connected to each holding rod or the at least one holding rod is connected to the support element by means of at least one bolt guided in a vertically extending slot.
- This is a simple yet reliable structure for the floating mounting of the follower plate on the at least one retaining rod in order to fasten it with limited vertical mobility with respect to the at least one retaining rod.
- the sensor device has a distance measuring device for detecting the position of the follower plate with respect to the at least one holding rod or with respect to the support element.
- the displacement measuring device measures the path covered by the follower plate with respect to the at least one retaining rod or with respect to the support element and can thus determine the position of the follower plate with respect to the at least one support rod or with respect to the support element and also the attainment of the upper and lower end positions with high accuracy.
- the sensor device has at least one first sensor for detecting the bolt or one of the bolts when the upper end position is reached by the follower plate and at least one second sensor for detecting the bolt or one of the bolts when the lower end position is reached. tion by the follower plate.
- the sensors are preferably proximity switches. They then switch when the bolt or one of the bolts reaches either the lower or the upper end position.
- the at least one bolt it is possible for the at least one bolt to be firmly connected to the follower plate and to be guided in an elongated hole, which runs in particular vertically and extends over the at least one retaining rod or a component firmly connected to it.
- the lower end of each holding rod is accommodated in a sleeve fixed to the upper side of the follower plate and that at least one bolt, which is guided in a slot in the sleeve, protrudes radially from it.
- the sleeve can be screwed to the follower plate, for example.
- each retaining rod is accommodated in a sleeve fixed to a vertically movable component of the lifting and lowering device, in particular to the underside of a traverse.
- at least one bolt which is guided in a slot in the sleeve, protrudes radially from the at least one retaining rod.
- at least two bolts protrude radially from each holding rod at equal angular distances from one another and are each guided in a slot in the associated sleeve.
- two bolts may project radially from each support rod in opposite directions. This measure creates a symmetry that reduces stress on the bolts due to torques that occur.
- the lifting and lowering device has a plurality of support rods, which are preferably arranged concentrically and at equal distances from one another around a center point of the follower plate.
- the support rods run at equal distances from a central longitudinal axis of the essentially cylindrical follower plate.
- two holding rods can be provided which are diametrically opposite one another with respect to the center point or the central axis.
- the follower plate can have a sensor for detecting when it is sitting on the bottom of the container. This one points a pin protruding from the underside of the follower plate and movable into the follower plate against a restoring force. The pin triggers the sensor signal when the follower plate rests with its full weight on the bottom of the container and the pin is pressed into the follower plate.
- vent opening There may be at least one vent opening and at least one vent opening spaced therefrom.
- the vent opening(s) and the vent opening(s) coincide so that there is at least one opening in the follower plate for the introduction and exhaust of air.
- the venting device can be a compressor or a venturi nozzle, for example. It is also possible to design the ventilation device in such a way that it can be operated in the reverse direction and introduces compressed air into the interior of the container. However, it is also possible to supply the compressed air via a separate compressed air line.
- a cover layer covering the vent opening(s) and/or the ventilation opening(s) and leaving the material outlet opening free arranged for air-permeable and liquid-impermeable material.
- the cover layer can be adapted to the viscous material. It does not have to be impermeable to every liquid, but only to the viscous material in question that is to be pumped out of the container.
- the covering layer can consist of a foldable material, for example a thin layer of felt or a commercially available weed fleece.
- the covering layer can be connected to a rigid ring at its peripheral edge.
- the cover layer can be connected at its peripheral edge to a ring made of elastically stretchable material.
- the latter configuration can also be independent of the floating mounting of the follower plate on the at least one support rod with vertically limited mobility of the follower plate with respect to the at least be realized with a support rod or with respect to the support element.
- the covering layer preferably consists of polypropylene (PP), in particular thermally bonded endless filaments.
- a polypropylene layer is preferred with a weight according to DIN EN 29073 T.1 of 60 g/m 2 +/- 10%, which expediently has a maximum tensile strength according to DIN EN 29073 T.2 of 130 N/5 cm lengthwise and 90 N crosswise /5 cm, each +/- 20% and an elongation according to DIN EN 29073 T.3 longitudinally of 88% and transversely of 87%, each +/- 20%.
- Such a material is, for example, from the company p. glatzeder gmbh under the designation PP spunbonded nonwoven 60g/m 2 - LA.
- Other basis weights are also possible.
- the elastically stretchable ring can be stretched and pulled over the peripheral edge of the container jacket, so that it is arranged circumferentially around the container jacket on an outside facing away from the container interior.
- the follower plate acts on the cover layer, so that the ring is pulled from the container jacket and wraps around an outer jacket surface of the follower plate. The ring can then form an additional seal between the follower plate and the container shell.
- the cover sheet and ring can be peeled off the follower plate and discarded.
- a new cover sheet is then attached to the container by threading its ring over the peripheral edge of the container skirt.
- FIG. 1 shows a device for conveying viscous material in a side view
- FIG. 2 shows the device according to FIG. 1 in plan view
- FIG. 3 shows the lower area of the device according to FIGS. 1, 2 in section along the line AA and
- Fig. 4 shows an enlarged detail from Fig. 3.
- the device 10 shown in the drawing is used to convey viscous material from a barrel-like container. It has a follower plate 12 which can be raised and lowered by means of a lifting and lowering device 14 .
- the lifting and lowering device 14 has a base plate 16 and hydraulic cylinders 18 mounted on the base plate 16, the piston rods 20 of which are led out upwards and are connected to one another by means of a support element 22 in the form of a traverse. From the traverse 22 two support rods 24 extend downwards, on which the follower plate 12 is suspended.
- the follower plate 12 has a central material outlet opening 26 through which the viscous material can be conveyed out of the container by means of a scoop piston pump 28 when the follower plate 12 rests with its underside on the viscous material. It also has a number of ventilation openings 30 through which air can be pumped out of the interior of the container and compressed air can be introduced into the interior of the container. A venting device, not shown in detail, or a ventilation device can be connected to the ventilation openings 30 as desired.
- the follower plate 12 is not rigidly connected to the support rods 24 but is mounted in a floating manner on them in the sense that it is vertically movable to a limited extent with respect to the support rods 24 .
- two sleeves 34 are screwed to the upper side 32 of the follower plate 12, each receiving the lower end of one of the two support rods 24.
- a bolt 36 protrudes radially from each of the support rods, which bolt extends through a vertically extending slot 38 in the relevant sleeve 34 and is guided longitudinally displaceably therein in the vertical direction.
- the elongated hole 38 is covered by a cover cap 40 in each case.
- the follower plate 12 can be moved between an upper end position shown in Fig. 3, 4, in which the bolts 36 each bear against the lower end of the respective elongated hole 38, and an upper end position in which they each bear against the upper end of the respective elongated hole 38, are shifted.
- a sensor device in the form of a path measuring device 42 on each sleeve 24 detects the position of the follower plate 12 in relation to the retaining rods 24 and in particular when the follower plate 12 has reached the upper end position and reached the lower end position.
- the path measuring device 42 sends signals to a control device, not shown in detail , when the respective end position is reached by the follower plate 12.
- the follower plate 12 is lifted off the base plate 16 by means of the lifting and lowering device 14 and the container, which is open at the top, is placed under the follower plate 12 on the base plate 16 .
- a cover element 50 is then arranged to cover the upwardly open container.
- the covering element 50 has a covering layer 52 which is permeable to air but not to the viscous material.
- the covering layer 52 is thin and consists of a pliable material such as a commercially available weed mat or a thin layer of felt.
- An elastically expandable ring 54 runs around the cover layer 52 and is pulled over the lateral surface of the container so that in the expanded state it lies against the lateral surface on the outside.
- the follower plate 12 is then lowered, pressing on the cover layer 52 and thus pulling the elastic ring 54 away from the outer surface of the container until it abuts the outer surface 56 of the follower plate 12, as shown in FIG.
- the cover layer 52 covers the ventilation opening 30, but not the material outlet opening 26.
- the follower plate 12 is lowered by means of the lifting and lowering device 14 until a wiper ring 58 running around its lateral surface 56 comes to rest on the inner surface of the container casing. so that its frictional force inhibits further insertion of the follower plate 12.
- a further lowering of the support rods 24 brings the follower plate 12 into its upper end position, so that the path measuring device 42 is triggered and the control unit direction activates the venting device and the lifting and lowering device 14 stops.
- the vacuum created in the container pulls the follower plate 12 down until it reaches its lower end position, so that the path measuring device 42 is triggered, the control device deactivates the venting device and activates the lifting and lowering device 14, which lowers the support rods 24.
- the change between a movement mode in which the ventilation device is deactivated and the lifting and lowering device 14 moves the support rods 24, and a ventilation mode in which the support rods 24 are held in place and air from the interior of the container through the ventilation and ventilation openings 30 by means of the Venting device is pumped, is continued until the follower plate 12 rests on the viscous material and the air is pumped out of the container. Then the conveying process begins, in which the scoop piston pump 28 pumps the viscous material out of the container.
- the follower plate 12 follows the material level until it reaches its lower end position, whereupon the control device in turn activates the lifting and lowering device 14 based on a signal from the displacement measuring device 42, so that the holding rods 24 are lowered until the follower plate 12 reaches its upper end position and the path measuring device 42 transmits a corresponding signal to the control device.
- at least one hold-down device which is firmly connected to the base plate 16 and engages a lower and/or an upper container edge can be provided.
- the follower plate 12 is removed from the container in accordance with the procedure for inserting the follower plate 12 into the container.
- compressed air is introduced into the ventilation opening 30 by means of the ventilation device, as a result of which the follower plate 12 is lifted off the container bottom under pressure. It then reaches its upper end position, the path measuring device 42 switches, the control device interrupts the compressed air supply and activates the lifting and lowering device 14, which raises the support rods 24 until the follower plate 12 has reached its lower end position again. Then the distance measuring device 42 switches again, the lifting and lowering device 14 is stopped and compressed air is again introduced into the interior of the container and so on until the follower plate 12 reaches the upper edge of the container and can be lifted off.
- the invention relates to a device 10 for conveying viscous material from a barrel-like container having a container bottom and a container jacket extending upwards from the container bottom, with a follower plate 12 which is mounted on the inner surface of the adjacent to the container shell and is movable in the direction of the container bottom and away from the container bottom, and which has a material outlet opening 26 and at least one vent opening 30 and/or at least one vent opening 30, with a vent device for sucking air out of the container interior through the vent opening(s) 30 and / or with a ventilation device for introducing compressed air into the interior of the container through the ventilation opening(s) 30, with a lifting and lowering device 14 for raising and lowering the follower plate 12, with a control device for alternately controlling the lifting e and lowering device 14 in a movement mode and the venting device or the ventilation device in a venting mode or in a ventilation mode, the lifting and lowering device 14 having at least one vertically extending support rod 24
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Basic Packing Technique (AREA)
- Reciprocating Pumps (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Coating Apparatus (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP24187303.3A EP4417571A3 (en) | 2020-08-06 | 2021-07-19 | Device for conveying viscous material |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020120815 | 2020-08-06 | ||
DE102020120748 | 2020-08-06 | ||
DE102020127440.8A DE102020127440A1 (en) | 2020-08-06 | 2020-10-19 | Device for conveying viscous material |
PCT/EP2021/070111 WO2022028869A1 (en) | 2020-08-06 | 2021-07-19 | Apparatus for conveying viscous material |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24187303.3A Division-Into EP4417571A3 (en) | 2020-08-06 | 2021-07-19 | Device for conveying viscous material |
EP24187303.3A Division EP4417571A3 (en) | 2020-08-06 | 2021-07-19 | Device for conveying viscous material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4161864A1 true EP4161864A1 (en) | 2023-04-12 |
EP4161864B1 EP4161864B1 (en) | 2024-09-04 |
Family
ID=79686426
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24187303.3A Pending EP4417571A3 (en) | 2020-08-06 | 2021-07-19 | Device for conveying viscous material |
EP21745819.9A Active EP4161864B1 (en) | 2020-08-06 | 2021-07-19 | Apparatus for conveying viscous material |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP24187303.3A Pending EP4417571A3 (en) | 2020-08-06 | 2021-07-19 | Device for conveying viscous material |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230249215A1 (en) |
EP (2) | EP4417571A3 (en) |
KR (1) | KR20230044397A (en) |
CN (1) | CN116133977A (en) |
DE (1) | DE102020127440A1 (en) |
WO (1) | WO2022028869A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022117907A1 (en) | 2022-07-18 | 2024-01-18 | Lcm Gmbh | Machine for processing a plate-shaped workpiece with a hold-down device for spray containers |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19636581C1 (en) * | 1996-09-09 | 1997-12-11 | Intec Bielenberg Gmbh & Co Kg | Refillable multi-path container for highly viscous media |
DE102004030654A1 (en) | 2004-06-24 | 2006-01-19 | Sca Schucker Gmbh & Co. Kg | Device for conveying viscous material |
DE102007003972B4 (en) | 2007-01-26 | 2012-01-19 | Viscotec Pumpen- Und Dosiertechnik Gmbh | Device for air-free removal and improved ventilation with porous dividing plates |
US8113390B2 (en) * | 2007-04-18 | 2012-02-14 | Microlin, Llc | Gas generation dispenser apparatus and method for on-demand fluid delivery |
DE202011108222U1 (en) | 2011-11-24 | 2012-02-14 | Reinhardt-Technik Gmbh & Co. | Device for dispensing liquids from containers |
US20130256062A1 (en) | 2012-03-27 | 2013-10-03 | Lincoln Industrial Corporation | Lubricant reservoir refilling system with shut-off |
AT512536B1 (en) | 2012-10-10 | 2013-09-15 | Waizenauer Dietmar Bsc | mixing device |
DE102014011395A1 (en) * | 2014-07-17 | 2016-01-21 | Sca Schucker Gmbh & Co. Kg | Device for conveying viscous material |
DE202015102509U1 (en) | 2015-05-15 | 2016-08-17 | 2 Komponenten Maschinenbau Gmbh | Follower plate and removal station with follower plate |
EP3296075B1 (en) | 2016-09-20 | 2021-11-10 | Wagner International Ag | Feeding apparatus for feeding a viscous material from a container and method for operating the feeding apparatus |
DE102017000047A1 (en) | 2017-01-05 | 2018-07-05 | Atlas Copco Ias Gmbh | Device for conveying viscous material |
JP6974763B2 (en) | 2017-02-28 | 2021-12-01 | 株式会社スリーボンド | Viscous material supply device, coating sheet used for viscous material supply device, viscous material supply method and mounting method of coating sheet |
US20210094311A1 (en) * | 2017-04-18 | 2021-04-01 | Hp Indigo B.V. | High-viscosity fluid delivery |
DE102018104763A1 (en) | 2018-03-02 | 2019-09-05 | Atlas Copco Ias Gmbh | Method for removing a follower plate from a container |
JP7351760B2 (en) * | 2020-02-03 | 2023-09-27 | トヨタ自動車株式会社 | Fluid pumping device |
-
2020
- 2020-10-19 DE DE102020127440.8A patent/DE102020127440A1/en active Pending
-
2021
- 2021-07-19 EP EP24187303.3A patent/EP4417571A3/en active Pending
- 2021-07-19 KR KR1020237001575A patent/KR20230044397A/en active Search and Examination
- 2021-07-19 US US18/013,080 patent/US20230249215A1/en active Pending
- 2021-07-19 WO PCT/EP2021/070111 patent/WO2022028869A1/en unknown
- 2021-07-19 CN CN202180056991.3A patent/CN116133977A/en active Pending
- 2021-07-19 EP EP21745819.9A patent/EP4161864B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN116133977A (en) | 2023-05-16 |
EP4161864B1 (en) | 2024-09-04 |
EP4417571A2 (en) | 2024-08-21 |
DE102020127440A1 (en) | 2022-02-10 |
KR20230044397A (en) | 2023-04-04 |
EP4417571A3 (en) | 2024-10-16 |
WO2022028869A1 (en) | 2022-02-10 |
US20230249215A1 (en) | 2023-08-10 |
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