EP0519566A1 - Verpackungsvorrichtung - Google Patents

Verpackungsvorrichtung Download PDF

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Publication number
EP0519566A1
EP0519566A1 EP92201757A EP92201757A EP0519566A1 EP 0519566 A1 EP0519566 A1 EP 0519566A1 EP 92201757 A EP92201757 A EP 92201757A EP 92201757 A EP92201757 A EP 92201757A EP 0519566 A1 EP0519566 A1 EP 0519566A1
Authority
EP
European Patent Office
Prior art keywords
products
weighing
metering
trough
metered
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
Application number
EP92201757A
Other languages
English (en)
French (fr)
Other versions
EP0519566B1 (de
Inventor
Andries Pieter Kout
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WEIGHPACK INTERNATIONAL BV
Original Assignee
WEIGHPACK INTERNATIONAL BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WEIGHPACK INTERNATIONAL BV filed Critical WEIGHPACK INTERNATIONAL BV
Publication of EP0519566A1 publication Critical patent/EP0519566A1/de
Application granted granted Critical
Publication of EP0519566B1 publication Critical patent/EP0519566B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing
    • B65B1/34—Adjusting weight by trickle feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/34—Packaging other rod-shaped articles, e.g. sausages, macaroni, spaghetti, drinking straws, welding electrodes

Definitions

  • the invention relates to a device for continuous metering and delivering into packaging units of products ready for use, of the same shape and weight and of limited size, comprising a stock container, a conveyor system comprising at least two trough conveyors provided with vibrating elements, means for regulating the speed of conveyance of the products to be metered, and also means for metering by weighing and delivering the conveyed products into packaging units.
  • Such a device is known in various forms, and is used for packing products such as screws, nuts, bolts, nails, washers etc. made from ferrous or non-ferrous metals or from plastics into small packaging units.
  • the known device comprises a conveyor system, comprising two or three trough conveyors which are set in vibration independently of each other by means of electromagnetic vibrators.
  • the width of the trough conveyors present can vary between 80/150/200/250/300 and 400 mm, and depends on the weight per volume to be metered within a certain weight range.
  • weight ranges of the products of 10 - 500 g, 50 - 3500 g, 100 - 6000 g, 500 - 10,000 g, 5000 - 25,000 g and 10,000 - 35,000 g respectively are normally used.
  • the weight range in question is, however, partly determined by the weighing system present.
  • the products to be packed are transferred from the stock container to trough conveyors, of which at least one trough is used for coarse metering and weighing of, for example, about 80% of the total quantity of products to be metered by weighing, while at least one other trough conveyor, which is placed parallel to the first trough conveyor, and is also supplied from the stock container, is used for accurate metering of the required remaining quantity.
  • the speed of the products to be conveyed can be varied in the trough conveyors if desired.
  • the desired quantity to be delivered into the packaging unit is metered from the trough conveyors into a weighing pan fitted on a weighing system. When the required weight is reached, the contents of said weighing pan are metered in their entirety into the packaging unit.
  • this known device operates discontinuously: when the required weight has been largely reached by means of the coarse stream, the supply thereof is stopped, and material is then supplied only by means of the fine stream from the trough conveyor placed parallel to the trough conveyor for the coarse stream.
  • This fine stream usually provides approximately 10 - 20% of the quantity to be metered after stopping of the supply from the coarse stream.
  • the product stream capacity in the supply system therefore falls considerably already during this fine stream, while on reaching the required quantity in the weighing pan it has fallen right down to zero.
  • a device in which the supply system is the same as that of the device described above, but in which the weighing system is made double, i.e. a first weighing pan in which the coarse weighing is carried out, for example up to about 85%, and a weighing pan into which the difference from the desired weight is metered, in this case about 15%.
  • a first weighing pan in which the coarse weighing is carried out, for example up to about 85%
  • a weighing pan into which the difference from the desired weight is metered in this case about 15%.
  • a device of the type described in the preamble has now been found, by which a higher metering capacity per unit time can be obtained, with an acceptable falling height of the products to be metered.
  • the device according to the invention is characterised in that the device connected to at least one trough conveyor is provided with a buffer element.
  • Providing a buffer element in the present invention makes it possible to maintain a high metering capacity, through the fact that fluctuations resulting from changing the packaging units are eliminated by this buffer element.
  • the buffer element is preferably a horizontal buffer element. This horizontal buffering makes it possible to place the packaging units a short distance from the outlet of the buffer element, with the result that the falling height of the products to be metered and delivered can be limited considerably compared with the known devices described above.
  • the buffer element is an endless belt.
  • the endless belt is more particularly provided with means for reversing the direction of conveyance of the belt. Reversing the direction of conveyance means that - of course, depending on the supply speed of products and on the speed of conveyance of the belt - the part of the belt lying behind the supply point is used as a storage area. Such a horizontal buffering has the advantage that the exact number of products deposited on the belt is known.
  • product position influencing devices For certain products to be metered and delivered into a packaging unit, it is desirable for the products all to be delivered in the same position.
  • the device is provided with product position influencing devices.
  • These product position influencing devices expediently comprise a directing magnet.
  • a directing magnet makes it possible to meter magnetisable products parallel to each other into a packaging unit.
  • Fig. 1 shows schematically a device of a known type for metering and delivering into packaging units, such as boxes etc., of products which are ready for use.
  • this known device comprises in succession a stock container V, two vibrating troughs 1, 2, a vibrating trough 3 for coarse metering of the material to be metered and, parallel thereto, a vibrating trough 4 for fine metering of the material to be metered, a weighing pan 6 connected to a weighing system 5, and a packaging unit 7, for example a box.
  • This device works as follows: From a schematically shown stock container V the products to be metered and packed, for example screws, nuts or bolts and the like, are delivered to a conveyor system which in the device shown here comprises two trough conveyors 1, 2 which are provided with (electro-magnetic) vibrators. On discharge from the second trough conveyor 2, a substantial part of the product stream is conveyed to vibrating trough 3, and a (smaller) part to vibrating trough 4. The required weight is metered by means of the coarse stream from vibrating trough 3 (approx. 85%) and the fine stream from vibrating trough 4 (approx. 15%) into a weighing pan 6 (the weighing is recorded here by weighing cell 5).
  • This weighing pan 6 is opened when the required weight has been reached, and the total quantity of weighed product is discharged into box 7. Due to the fact that the falling height of the products is considerable, the chance of damage to, for example, the screw thread is great during metering of fixing materials.
  • Fig. 2 shows a variant of the device shown in Fig. 1, which more particularly comprises a double weighing of the quantity of products to be metered, i.e. a weighing pan 6 in which the weighing of the larger quantity takes place, for example approximately 90% of the required total weight, which weighing pan is supplied by vibrating trough 3.
  • the weighing of the quantity present in weighing pan 6 takes place by means of weigh
  • a weighing pan 7 is present (placed below weighing pan 6 in Fig. 2), which is supplied with the quantity metered into weighing pan 6, after metering has taken place into weighing pan 7 with the fine stream coming out of vibrating trough 4, by weighing with weighing cell 5b.
  • the coarse stream is therefore weighed in weighing pan 6, the difference from the desired weight (for example, approximately 10%) is metered into weighing pan 7, the desired total quantity is weighed out in weighing pan 7 by discharging the contents of weighing pan 6 into weighing pan 7, and the total weight quantity is discharged into packaging unit 8.
  • the advantage of such a system is that during the fine stream the product stream capacity does not fall, because the first weighing pan is filled roughly in the overlap period. Only when the first weighing pan is opened does the product stream capacity fall to zero, in order to prevent products from falling between the pan lids.
  • Figs. 3a and 3b show schematically a device according to the invention.
  • Essential in the invention is the presence of the buffer element connected to at least one trough conveyor.
  • this buffer element comprises a conveyor belt 9 which is provided with means for making the belt run forwards or backwards (these means are shown schematically by M).
  • Conveyor belt 9 is placed directly below the outlet of vibrating trough 3 of the coarse stream. From conveyor belt 9 the product is metered directly into the packaging unit 10 placed on weighing cell 11.
  • the conveyor belt 9 is reversed, and the product is deposited on the belt and therefore stored. During this time the desired weight is obtained by means of metering via the fine stream 4.
  • the pack 10 is changed, and conveyor belt 9 is reversed again.
  • the product buffered on the belt is then metered preferably at 3 different speeds of the conveyor belt into the packaging unit 10. These speeds are selected depending on the quantity of product present on the belt, which quantity can be one, two or three layers, due to the buffering.
  • the device shown here makes it possible to obtain a higher metering capacity per unit time, with a low falling height of the products to be metered.
  • This device is suitable in particular when the buffering time of the coarse stream is shorter than the fine stream and pack changing time, i.e. for large portions from about 15 - 25 kg.
  • the advantage of the present invention is that the product stream in the vibrating trough supply system is constant, and need not be interrupted.
  • Figs. 4a and 4b show a different embodiment of the device according to the invention shown in Figs. 3a and 3b, the difference being that the quantity of product supplied by vibrating trough 4 for the fine stream is weighed by weighing cell 12.
  • the buffering on belt 9 then takes place only during the pack change, it being assumed that the fine stream time is shorter than the coarse stream time.
  • FIGs. 5a and 5b show the same device as that shown in Figs. 4a and 4b, but provided with a directing magnet 14 in order to meter products parallel to each other through magnetism into packaging unit 10 during the coarse metering from buffer belt 9, and thus to exert a product position influence.
  • a directing magnet 14 in order to meter products parallel to each other through magnetism into packaging unit 10 during the coarse metering from buffer belt 9, and thus to exert a product position influence.
  • packaging unit 10 is moved to the position of packaging unit 13, and supplementing to the desired weight from the fine stream takes place.
EP19920201757 1991-06-17 1992-06-15 Verpackungsvorrichtung Expired - Lifetime EP0519566B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9101043A NL9101043A (nl) 1991-06-17 1991-06-17 Verpakkingsinrichting.
NL9101043 1991-06-17

Publications (2)

Publication Number Publication Date
EP0519566A1 true EP0519566A1 (de) 1992-12-23
EP0519566B1 EP0519566B1 (de) 1996-01-03

Family

ID=19859382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920201757 Expired - Lifetime EP0519566B1 (de) 1991-06-17 1992-06-15 Verpackungsvorrichtung

Country Status (3)

Country Link
EP (1) EP0519566B1 (de)
DE (1) DE69207278D1 (de)
NL (1) NL9101043A (de)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2128917A1 (es) * 1996-01-19 1999-05-16 Espan Food Mach Maquina pesadora-llenadora automatica de envases para frutos a granel.
CN100415609C (zh) * 2005-11-17 2008-09-03 张建军 螺丝钉自动包装机
CN101376435B (zh) * 2008-09-27 2010-06-02 江阴市联业生物科技有限公司 肥料自动包装机
CN103935538A (zh) * 2014-04-11 2014-07-23 侯赢 一种用于包装秤的带式喂料机
WO2015044796A1 (en) * 2014-05-14 2015-04-02 Vezzani Giuseppe Pasta dosing machine, particularly for long-type pasta
CN105564676A (zh) * 2016-03-07 2016-05-11 徐海慧 一种用于工厂自动计数钉子装盒装置
CN105923412A (zh) * 2016-06-27 2016-09-07 温州集智科技有限公司 一种用于固粉添加的自动定量进料装置
CN106115295A (zh) * 2016-06-27 2016-11-16 温州集智科技有限公司 一种用于固态物料添加的自动定量进料装置
CN109264096A (zh) * 2018-11-22 2019-01-25 陈志恒 机械手存取包装盒式颗粒料装盒机
CN109941470A (zh) * 2017-12-20 2019-06-28 佛山市承安铜业有限公司 一种称重装置及其称重方法和铜球生产线及生产包装方法
CN111731527A (zh) * 2020-07-23 2020-10-02 苏州波菲特新材料科技有限公司 一种用于粒状物料打包的称重设备及称重方法
CN113562212A (zh) * 2021-08-20 2021-10-29 恩纳科(天津)自动化设备有限公司 一种易破碎果肉灌装设备
CN114933035A (zh) * 2022-06-10 2022-08-23 天津市森博恒通金属制品有限公司 一种自动称重包装生产线及自动称重包装生产方法
CN115258214A (zh) * 2022-09-29 2022-11-01 四川工宇智创科技有限公司 一种颗粒流体计量装置及有色合金金属粉末填装机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE607458C (de) * 1931-06-16 1934-12-28 Eduard Quester Vorrichtung zum Abwiegen von Tabak und aehnlichen Stoffen
US2614786A (en) * 1948-09-03 1952-10-21 Terminal Packaging Company Weighing and packaging machine
GB772677A (en) * 1953-11-20 1957-04-17 Package Machinery Co Automatic weighing machine
FR1512411A (fr) * 1966-12-22 1968-02-09 Cie Auxiliaire D Entpr S Elect Installation pour le pesage et le conditionnement automatiques d'objets métalliques longilignes tels que clous ou autres
US3416619A (en) * 1966-02-07 1968-12-17 Stanley A. Mcclusky Means and method for rapidly filling receptacles
FR2390334A1 (fr) * 1977-05-10 1978-12-08 Gillenkirch Gerd Ensacheuse
DE3708078A1 (de) * 1987-03-13 1988-09-22 Rovema Gmbh Verfahren und vorrichtung zum selbsttaetigen gravimetrischen abfuellen von schuettgut und/oder fluessigkeit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE607458C (de) * 1931-06-16 1934-12-28 Eduard Quester Vorrichtung zum Abwiegen von Tabak und aehnlichen Stoffen
US2614786A (en) * 1948-09-03 1952-10-21 Terminal Packaging Company Weighing and packaging machine
GB772677A (en) * 1953-11-20 1957-04-17 Package Machinery Co Automatic weighing machine
US3416619A (en) * 1966-02-07 1968-12-17 Stanley A. Mcclusky Means and method for rapidly filling receptacles
FR1512411A (fr) * 1966-12-22 1968-02-09 Cie Auxiliaire D Entpr S Elect Installation pour le pesage et le conditionnement automatiques d'objets métalliques longilignes tels que clous ou autres
FR2390334A1 (fr) * 1977-05-10 1978-12-08 Gillenkirch Gerd Ensacheuse
DE3708078A1 (de) * 1987-03-13 1988-09-22 Rovema Gmbh Verfahren und vorrichtung zum selbsttaetigen gravimetrischen abfuellen von schuettgut und/oder fluessigkeit

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2128917A1 (es) * 1996-01-19 1999-05-16 Espan Food Mach Maquina pesadora-llenadora automatica de envases para frutos a granel.
CN100415609C (zh) * 2005-11-17 2008-09-03 张建军 螺丝钉自动包装机
CN101376435B (zh) * 2008-09-27 2010-06-02 江阴市联业生物科技有限公司 肥料自动包装机
CN103935538A (zh) * 2014-04-11 2014-07-23 侯赢 一种用于包装秤的带式喂料机
WO2015044796A1 (en) * 2014-05-14 2015-04-02 Vezzani Giuseppe Pasta dosing machine, particularly for long-type pasta
US9856040B2 (en) 2014-05-14 2018-01-02 Cyborgline Sa Pasta dosing machine, particularly for long-type pasta
CN105564676A (zh) * 2016-03-07 2016-05-11 徐海慧 一种用于工厂自动计数钉子装盒装置
CN105923412B (zh) * 2016-06-27 2017-12-26 温州日电电器有限公司 一种用于固粉添加的自动定量进料装置
CN106115295A (zh) * 2016-06-27 2016-11-16 温州集智科技有限公司 一种用于固态物料添加的自动定量进料装置
CN105923412A (zh) * 2016-06-27 2016-09-07 温州集智科技有限公司 一种用于固粉添加的自动定量进料装置
CN109941470A (zh) * 2017-12-20 2019-06-28 佛山市承安铜业有限公司 一种称重装置及其称重方法和铜球生产线及生产包装方法
CN109264096A (zh) * 2018-11-22 2019-01-25 陈志恒 机械手存取包装盒式颗粒料装盒机
CN111731527A (zh) * 2020-07-23 2020-10-02 苏州波菲特新材料科技有限公司 一种用于粒状物料打包的称重设备及称重方法
CN113562212A (zh) * 2021-08-20 2021-10-29 恩纳科(天津)自动化设备有限公司 一种易破碎果肉灌装设备
CN113562212B (zh) * 2021-08-20 2023-10-27 恩纳科(天津)自动化设备有限公司 一种易破碎果肉灌装设备
CN114933035A (zh) * 2022-06-10 2022-08-23 天津市森博恒通金属制品有限公司 一种自动称重包装生产线及自动称重包装生产方法
CN115258214A (zh) * 2022-09-29 2022-11-01 四川工宇智创科技有限公司 一种颗粒流体计量装置及有色合金金属粉末填装机
CN115258214B (zh) * 2022-09-29 2022-12-20 四川工宇智创科技有限公司 一种颗粒流体计量装置及有色合金金属粉末填装机

Also Published As

Publication number Publication date
DE69207278D1 (de) 1996-02-15
EP0519566B1 (de) 1996-01-03
NL9101043A (nl) 1993-01-18

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