WO2007096749A1 - Machine pour le traitement par sechage de substances collantes, en particulier de substances collantes appliquees a des produits chaussants - Google Patents

Machine pour le traitement par sechage de substances collantes, en particulier de substances collantes appliquees a des produits chaussants Download PDF

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Publication number
WO2007096749A1
WO2007096749A1 PCT/IB2007/000424 IB2007000424W WO2007096749A1 WO 2007096749 A1 WO2007096749 A1 WO 2007096749A1 IB 2007000424 W IB2007000424 W IB 2007000424W WO 2007096749 A1 WO2007096749 A1 WO 2007096749A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
drying
transferring
tacky substances
footwear products
Prior art date
Application number
PCT/IB2007/000424
Other languages
English (en)
Inventor
Enzo Paolucci
Original Assignee
Iron Fox S.R.L.
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 Iron Fox S.R.L. filed Critical Iron Fox S.R.L.
Publication of WO2007096749A1 publication Critical patent/WO2007096749A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D25/00—Devices for gluing shoe parts
    • A43D25/20—Arrangements for activating or for accelerating setting of adhesives, e.g. by using heat

Definitions

  • the object of the present invention is a machine for the drying treatment of tacky substances, in particular of tacky substances applied to footwear products, to be used preferably, yet not exclusively, in industrial footwear manufacturing plants.
  • the industrial footwear manufacturing process is known to essentially comprise an initial phase of a separate production of footwear items such as a vamp and sole, an intermediate phase of applying a tacky substance in an appropriate manner to such products, and a final phase of assembling said products.
  • the tacky substances employed in the footwear industry are also known to be solvent or water-based. Between the intermediate application of the tacky substances and the final phase of assembly it is therefore necessary to perform an appropriate drying treatment for the tacky substances, in order to eliminate the solvent or water fraction from the same. Special machines are used to perform this treatment. For instance, a "Drying Machine System of One or More in-line Operating Stations for Solvent-based Glued Products, Especially for Footwear Products" as subject of the patent application no.
  • This machine essentially comprises a supporting and containing structure, means for transferring said footwear products from in inlet to an outlet station of said footwear products into and from the machine supported by said structure, and drying means for the drying of said tacky substances applied to said footwear products transiting on said transferring means between said inlet and outlet stations.
  • Said drying means provide an evaporating station and a dehumidifying station arranged in series and oriented toward said transferring means. The purpose of the evaporating station is to evaporate the major part of the solvent or water from the tacky substances, by a treatment of aspirating the humid air contained in a confined ambience holding the footwear product to be treated.
  • this evaporating station consists of radiating heat sources, an enclosure housing said sources and a vacuum pump functionally connected to said enclosure. More in particular, said enclosure presents an inlet turned toward the transferring means and is designed to allow the passing through the enclosure interior of at least one footwear product at a time.
  • This enclosure is also vertically mobile between a position close to said transferring means to receive at least one product inside it, and a position removed from said transferring means so as to allow a forward motion of the latter.
  • This dehumidifying station serves in turn the purpose of eliminating the residual solvent and water fraction of the tacky substances, by using a treatment of exposing the product to be treated to a stream of dry air.
  • said dehumidifying station comprises aspirating and conveying means which aspirate air through an aspirating duct starting from inside the machine next to its outlet station, and convey it through a discharge duct opening up to the interior of the machine behind said evaporating station, heating means arranged along said conveying duct to heat the discharged air, and dehumidifying means arranged along said aspirating duct to dehumidify the aspirated air.
  • This machine essentially operates as follows. A first operator appropriately arranges the footwear products with the tacky substances applied on the transferring means at a point corresponding to the entrance station of the machine. The transferring means transfer the products inside the machine next to the evaporating station.
  • the latter performs, at intervals predetermined for each product transiting on the transferring means, the initial tacky substances treating phase.
  • the footwear products gradually leave the evaporating station on the transferring means and are subjected to a final treating phase performed in the dehumidifying station.
  • the transferring means transfer the products to the outlet station of the machine, where a second operator picks them up.
  • the main drawback recognizable in the machines made according to the above prior art consists in that the treated product occasionally exhibit differences of a qualitative order. This derives from the drying treatment of the tacky substances occurring in two distinct phases, thus causing temperature changes to occur in passing from the first to the second phase of the drying treatment of the tacky substances.
  • a second drawback recognizable in the machines made according this manner consists in that the dry air stream generated by the dehumidifying station tends to create a film on the surfaces of the tacky substances, which makes the drying of the underlying tacky substances more time-consuming and difficult.
  • a third drawback found in the machines made according this manner lies in that they do not appear to be suitable for performing a drying treatment of tacky substances applied to a few types of footwear products. It is for instance known that the aspirating action carried out by the evaporating station tends to curl up the vamps of the boots.
  • a fifth drawback found in these machines consists in the fact that the operation of these machines involves high energy consumption rates.
  • the aim of the present invention is to carry out a machine for the drying treatment of tacky substances, in particular for the tacky substances applied to footwear products, able of overcoming the drawbacks found in the known technology.
  • an important object of the present invention is to carry out a machine able to make products of adequate and constant qualitative standards.
  • a further object of the present invention is to make available a machine able of performing the drying of said tacky substances in a homogeneous way, so as to shorten and facilitate the performance of the drying treatment.
  • Another object of the present invention is to carry out a machine able of performing the drying treatment of the tacky substances independently of the type of footwear product to be treated, so as to extend the usage of the machine to treat footwear products that are currently difficult to treat.
  • Another object of the present invention is to develop a machine that is simple from a design and construction viewpoint, in order to limit both production and maintenance costs.
  • Not the least object of the present invention is to develop a machine able of limiting the energy consumption deriving from its operation.
  • the machine comprises a supporting/containing structure, transferring means for transferring said footwear products from an inlet station to an outlet station of said footwear products into/from the machine supported by said structure, drying means for drying said tacky substances applied to said footwear products transiting on said transferring means from said inlet station and said outlet station.
  • Said drying means in particular comprise radiation drying units and at least one convection drying unit, acting on said tacky substances in a combined manner.
  • the supporting/containing structure comprises a supporting frame and a containing enclosure which encompasses in the overlaying portion a hollow space, a multiple number of aspirating and discharging slots to put the hollow space in contact with the machine's outer ambience, and finally, in the portion underlying said hollow space, a treating tunnel for the footwear products.
  • said transferring means are partially housed in said tunnel in a longitudinal direction.
  • These transferring means comprise a first and a second annular- shaped conveyor belt that are arranged side-by-side, laid out horizontally and moving in the same forward direction.
  • the upper portions of the first and second conveyor belt define a first and second horizontal transfer plane, respectively, on which rows of first and second footwear products are laid out beginning from the inlet station up to the outlet station of said machine.
  • the radiation drying units comprise a first and a second pair of drying and radiating units arranged side-by-side, in succession and turned toward the transferring planes.
  • These drying units comprise supporting elements and a plurality of infrared radiating panels applied to the supporting panels and investing the transfer planes. Said infrared radiating panels present in a non-operating condition a first surface colour, and in an operating condition a second colour differing from said first colour.
  • the supporting elements comprise manual and automatic adjusting means capable of approaching and distancing the plurality of radiating panels toward and from the transfer planes.
  • the convection drying units are arranged before said first and said second pair of radiating drying units.
  • Said convection drying units comprise a pair of inlet fans arranged laterally above the transfer planes that aspirate fresh air through the hollow space and the slots, which is preheated along the hollow space by contact with the radiating drying units which convey the preheated air toward the transfer planes, and a centrally arranged evacuating fan which aspirates hot air originating from the transfer planes and sends it outside said machine through the discharge slots or through a discharge chimney.
  • the machine comprises a preheating unit to preheat the tacky substances and a b
  • reactivating unit to reactivate Ie tacky substances arranged upstream and downstream of said radiation and convection drying units, respectively, which are turned toward said transfer planes.
  • Figure 1 represents a perspective view of the machine according to the invention, in a non operating condition
  • Figure 2 represents a lateral view in longitudinal section of the machine of Fig. 1 , in an operating condition
  • Figure 3 represents a first sectional view taken in relation to the radiation drying units of the machine of Fig. 2; - Figure 4 represents a second sectional view taken in relation to the convection drying units of the machine of Fig. 2.
  • the machine for the drying treatment of tacky substances comprises above all a supporting/containing structure 7.
  • Said structure 7 comprises in detail a supporting frame 8 and a containing enclosure 9 which comprises in its upper portion a hollow space 10, a plurality of aspiration and discharge slots 11 , 12 to put this hollow space 10 in contact with the external ambience of the machine 5, and in the portion underlying said hollow space 10, a treating tunnel 13 for the footwear products 6.
  • the machine 5 further comprises transferring means, indicated as a whole by the reference number 14, to transfer said footwear products 6 from an inlet station 15 to an outlet station 16 of the footwear products 6 into/from the machine 5 supported by the structure 7.
  • said transferring means are partially housed in said tunnel 13 in a longitudinal direction.
  • Said transferring means 14 comprise a first and a second conveyor belt 17, 18 of an annular shape, which are arranged side-by-side, laid down horizontally and moving in the same forward direction.
  • the upper portions of said first and second conveyor belt 17, 18 define a first and a second horizontal transfer plane, respectively, on which rows of first and second footwear products 6 are arranged beginning from the inlet station 15 up to the outlet station 16 of said machine 5.
  • the machine 5 comprises drying means, indicated as a whole by the reference number 19, for the drying of tacky substances applied to the footwear products 6 transiting on the transferring means 14 between the inlet station 15 and the outlet station 16.
  • these drying means 19 comprise radiation drying units, designated as a whole by the reference number 20, and at least one convection drying unit, designated as a whole by the reference number 21 , which are acting on said tacky substances in a combined fashion.
  • This arrangement allows generating a uniform temperature in the ambience used to perform the drying treatment of said tacky substances.
  • the radiation drying units 20 comprise a first and a second couple of radiation drying units 20 arranged side-by-side, in succession and turned toward the transfer planes 17, 18.
  • Said radiation drying units 20 comprise supporting elements 22 and a plurality of infrared radiation panels 23 applied to the supporting elements 22 that emit a plurality of infrared radiation beams investing the transfer planes 17, 18.
  • said infrared radiation panels 23 present, in a non-operating condition, a first surface colour of a preferably pink/brown colour, and in a second operating condition a second colour of a preferably grey colour which differs from said first colour.
  • Said supporting elements 22 advantageously comprise manual and automatic adjusting means (not shown) to approach and distance the plurality of radiating panels 23 to/from the transfer planes 17, 18.
  • the convection drying unit 21 is in turn arranged between said first and said second couple of radiation drying units 20.
  • Said convection drying units 21 comprise in detail a couple of inlet fans 24 laterally arranged above the transfer planes 17, 18 that aspirate fresh air through the hollow space 10 and the aspiration slots 11.
  • This fresh air preheats along the hollow space by contact with the radiation drying units 20.
  • the inlet fans 24 convey the preheated air to the transfer planes 17, 18.
  • a centrally arranged evacuation fan 25 aspirates hot air originating from the transfer planes 17, 18 and sends it outside the machine 5 through the discharge slots 12 or through an evacuation chimney (not shown).
  • the machine comprises a preheating unit 26 to preheat the tacky substances and a reactivating unit 27 to reactivate said tacky substances, which are arranged upstream and downstream of said radiation drying units 20 and convection drying units 21 , respectively, and are turned toward the transfer planes 17, 18.
  • a first operator arranges the footwear products 6 with the tacky substances appropriately applied on the transferring means 14 next to the inlet station 15 of the machine 5.
  • the operator preferably arranges the soles horizontally on the first conveyor belt 17 and the relative vamps in an upturned condition on the second conveyor belt 18.
  • the transferring means 14 are thus continuously transferring the products from the inlet station 15 to a position underlying the preheating unit
  • the same preheated products 6 are then transferred by the transferring means 14 from the beginning to the end of the treating tunnel, 13. During this transfer, the products 6 are undergoing the action of both the radiation drying units 20 and the convection drying units 21 , whose combined action determines an ambience at a uniform temperature apt to induce the proper drying of the tacky substances applied to the products 6.
  • the products 6 are then continuously transferred by the transferring means 14 from the beginning to the end of the treating tunnel 13 to a position underlying the reactivating unit
  • the transferring means 14 transfer the products to a point next to the outlet station 16 of the machine 5, where a second operator picks them up.
  • the machine achieves its aim and the expected objects.
  • the machine is able of carrying out products of adequate and constant quality standards, and of shortening and facilitating the performance of the drying treatment.
  • the peculiar position of the convection drying units with respect to the radiation drying units allows the flows of air to reach the footwear areas coated with the tacky substances which are not invested by the infrared radiations.
  • the machine extends its treatment to the footwear products that are currently difficult to treat, such as for instance the vamps of boots.
  • the machine is also simple from a design and construction viewpoint, so as to limit both production and maintenance costs.
  • the machine finally allows limiting the energy consumption costs due to its operation, because the combined action of the radiation and convection drying units allows increasing the treating temperature and thus reducing the duration of performing the treatment.

Landscapes

  • Drying Of Solid Materials (AREA)

Abstract

Machine pour le traitement par séchage de substances collantes, en particulier de substances collantes appliquées à des produits chaussants, comportant une structure de support / de contention (7), des moyens de transfert destinés à transférer lesdits produits chaussants d'un poste d'entrée (15) à un poste de sortie (16) desdits produits chaussants vers / depuis la machine reposant sur ladite structure, et des moyens de séchage destinés à sécher lesdites substances collantes appliquées auxdits produits chaussants circulant sur lesdits moyens de transfert entre les postes d'entrée et de sortie. Les moyens de séchage comportent en particulier des unités de séchage par rayonnement (20) et au moins une unité de séchage par convection (21) agissant en combinaison sur lesdites substances collantes. Cette solution permet d'obtenir une température uniforme dans l'environnement de travail où est effectué le traitement par séchage desdites substances collantes (voir Fig.1).
PCT/IB2007/000424 2006-02-23 2007-02-22 Machine pour le traitement par sechage de substances collantes, en particulier de substances collantes appliquees a des produits chaussants WO2007096749A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20060058 ITPD20060058A1 (it) 2006-02-23 2006-02-23 Macchina per il trattamento di essicazione di sostanze collose, particolarmente delle sostanze collose apllicate a prodotti calzaturieri
ITPD2006A000058 2006-02-23

Publications (1)

Publication Number Publication Date
WO2007096749A1 true WO2007096749A1 (fr) 2007-08-30

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ID=38164993

Family Applications (1)

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PCT/IB2007/000424 WO2007096749A1 (fr) 2006-02-23 2007-02-22 Machine pour le traitement par sechage de substances collantes, en particulier de substances collantes appliquees a des produits chaussants

Country Status (2)

Country Link
IT (1) ITPD20060058A1 (fr)
WO (1) WO2007096749A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007119159A2 (fr) * 2006-04-18 2007-10-25 Iron Fox S.R.L. Procédé et appareil pour traiter des articles chaussants vers la fin du processus de production
ES2353422A1 (es) * 2008-07-01 2011-02-16 Celtecnia S L Sistema automatico e independiente para el control de la temperatura de diversas superficies, que incluye una cabeza de secado y/o una campana de reactivacion y un procedimiento para la gestion del sistema.
ITBO20100645A1 (it) * 2010-10-27 2012-04-28 Diamant S R L Metodo e macchina per l'incollaggio di calzature sportive
ITMI20111295A1 (it) * 2011-07-12 2013-01-13 Lanfranco Anzani Tunnel per l'asciugatura e la riattivazione dei collanti per calzature
CN102871297A (zh) * 2011-07-12 2013-01-16 蓝法兰可·安札尼 鞋黏胶烘干隧道
ITMI20121147A1 (it) * 2012-06-29 2013-12-30 Lanfranco Anzani Perfezionamenti ad un tunnel per l'asciugatura e la riattivazione dei collanti per calzature
ITUA20163550A1 (it) * 2016-05-18 2017-11-18 Anzani Machinery Srl Stazione automatica di asciugaggio rapido e riattivazione di collanti per parti da accoppiare in generale e, in particolare, per tomaie e suole di calzature
US20190011182A1 (en) * 2017-07-07 2019-01-10 Pou Chen Corporation Smart oven for drying shoe components
CN111838891A (zh) * 2019-09-19 2020-10-30 东莞市良强机械有限公司 具有分离和串接功能的制鞋烘箱结构
TWI835338B (zh) 2022-10-11 2024-03-11 拉雅化工有限公司 製鞋連續極化黏著貼合傳輸裝置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377631A (en) * 1941-05-24 1945-06-05 Joyce Inc Method and apparatus for manufacturing articles from preformed parts
US3056984A (en) * 1961-01-06 1962-10-09 Snitzer Saul Method of cementing soles to shoes
US4756091A (en) * 1987-06-25 1988-07-12 Herbert Van Denend Hybrid high-velocity heated air/infra-red drying oven
WO1996029903A1 (fr) * 1995-03-30 1996-10-03 British United Shoe Machinery Ltd. Sechage d'un depot sur un corps

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2377631A (en) * 1941-05-24 1945-06-05 Joyce Inc Method and apparatus for manufacturing articles from preformed parts
US3056984A (en) * 1961-01-06 1962-10-09 Snitzer Saul Method of cementing soles to shoes
US4756091A (en) * 1987-06-25 1988-07-12 Herbert Van Denend Hybrid high-velocity heated air/infra-red drying oven
WO1996029903A1 (fr) * 1995-03-30 1996-10-03 British United Shoe Machinery Ltd. Sechage d'un depot sur un corps

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Convection oven", WIKIPEDIA, THE FREE ENCYCLOPEDIA, XP002439761, Retrieved from the Internet <URL:http://en.wikipedia.org/wiki/Convection_oven> [retrieved on 20070628] *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007119159A3 (fr) * 2006-04-18 2007-12-21 Iron Fox Srl Procédé et appareil pour traiter des articles chaussants vers la fin du processus de production
WO2007119159A2 (fr) * 2006-04-18 2007-10-25 Iron Fox S.R.L. Procédé et appareil pour traiter des articles chaussants vers la fin du processus de production
ES2353422A1 (es) * 2008-07-01 2011-02-16 Celtecnia S L Sistema automatico e independiente para el control de la temperatura de diversas superficies, que incluye una cabeza de secado y/o una campana de reactivacion y un procedimiento para la gestion del sistema.
ITBO20100645A1 (it) * 2010-10-27 2012-04-28 Diamant S R L Metodo e macchina per l'incollaggio di calzature sportive
CN102871297B (zh) * 2011-07-12 2014-11-19 蓝法兰可·安札尼 鞋黏胶烘干隧道
ITMI20111295A1 (it) * 2011-07-12 2013-01-13 Lanfranco Anzani Tunnel per l'asciugatura e la riattivazione dei collanti per calzature
CN102871297A (zh) * 2011-07-12 2013-01-16 蓝法兰可·安札尼 鞋黏胶烘干隧道
ITMI20121147A1 (it) * 2012-06-29 2013-12-30 Lanfranco Anzani Perfezionamenti ad un tunnel per l'asciugatura e la riattivazione dei collanti per calzature
ITUA20163550A1 (it) * 2016-05-18 2017-11-18 Anzani Machinery Srl Stazione automatica di asciugaggio rapido e riattivazione di collanti per parti da accoppiare in generale e, in particolare, per tomaie e suole di calzature
US20190011182A1 (en) * 2017-07-07 2019-01-10 Pou Chen Corporation Smart oven for drying shoe components
US10823504B2 (en) * 2017-07-07 2020-11-03 Pou Chen Corporation Smart oven for drying shoe components
CN111838891A (zh) * 2019-09-19 2020-10-30 东莞市良强机械有限公司 具有分离和串接功能的制鞋烘箱结构
TWI835338B (zh) 2022-10-11 2024-03-11 拉雅化工有限公司 製鞋連續極化黏著貼合傳輸裝置

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