FR2693429A3 - Automatic supply of individual products - comprises fixed step chain supplying products to packaging machine with retractable conveyor compensating for production fluctuations - Google Patents

Automatic supply of individual products - comprises fixed step chain supplying products to packaging machine with retractable conveyor compensating for production fluctuations Download PDF

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Publication number
FR2693429A3
FR2693429A3 FR9208702A FR9208702A FR2693429A3 FR 2693429 A3 FR2693429 A3 FR 2693429A3 FR 9208702 A FR9208702 A FR 9208702A FR 9208702 A FR9208702 A FR 9208702A FR 2693429 A3 FR2693429 A3 FR 2693429A3
Authority
FR
France
Prior art keywords
products
machine
packaging machine
production
conveyor
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
FR9208702A
Other languages
French (fr)
Other versions
FR2693429B3 (en
Inventor
Gratien Laurent Franci Maurice
Bertin Pascal
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.)
SERMATEC SA
Original Assignee
SERMATEC SA
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 SERMATEC SA filed Critical SERMATEC SA
Priority to FR9208702A priority Critical patent/FR2693429B3/en
Publication of FR2693429A3 publication Critical patent/FR2693429A3/en
Application granted granted Critical
Publication of FR2693429B3 publication Critical patent/FR2693429B3/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/10—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
    • B65G21/14—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
    • 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
    • B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
    • B65B35/10—Feeding, e.g. conveying, single articles
    • B65B35/24—Feeding, e.g. conveying, single articles by endless belts or chains
    • B65B35/246—Feeding, e.g. conveying, single articles by endless belts or chains using extensible or retractable conveyors
    • 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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • B65B57/16—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to stop, or to control the speed of, the machine as a whole

Abstract

The packaging machine (D) has a constant operating cycle giving step advance for each product or group of products. At inlet there is a pegged chain (C) ensuring a fixed step between each product which is perfectly synchronised with the machine (D). A retractable conveyor (B) automatically compensates for fluctuations in production (A) and inertia of the machine (D) ensuring management of the machine speed relative to the production (A). The conveyor (B) comprises a fixed framework supporting a motorised drum and a detour roller. A motorised trolley slides on the framework relative to the frame supporting the retractable nose of the conveyor. USE - Positioning of products at regular intervals without accumulation.

Description

1) BUT
A partir d'une arrivée de production de produits individuels dont le flux peut varier de O à une cadence maximale connue, on désire positionner chaque produit (ou chaque groupement de produits) à intervalles très réguliers sans accumulation et gérer le démarrage, la régulation de vitesse et l'arrêt de la machine à alimenter.1) GOAL
From an arrival of production of individual products whose flow can vary from 0 to a known maximum rate, we want to position each product (or each group of products) at very regular intervals without accumulation and manage the start-up, the regulation of speed and stop of the machine to be fed.

2) DESCRIPTION DU MODE DE MARCHE DE LA PRODUCTION AMONT
(MACHINE A)
La production fonctionne normalement à une cadence donnée mais peut comporter des aléas de fonctionnement (manque d'un ou de plusieurs produits, variations de la cadence, démarrage ou arrêt progressifs ou instantanés).2) DESCRIPTION OF THE UPSTREAM PRODUCTION MARKET MODE
(MACHINE)
The production operates normally at a given rate but may include operating hazards (lack of one or more products, variations in the rate, progressive or instantaneous start or stop).

3) DESCRIPTION DU MODE DE MARCHE DE LA MACHINE A ALIMENTER
(MACHINE D)
La machine D a un cycle de fonctionnement constant donnant un pas d'avance pour chaque produit ou groupage de produits.3) DESCRIPTION OF THE OPERATING MODE OF THE POWER SUPPLY MACHINE
(MACHINE D)
Machine D has a constant operating cycle giving one step ahead for each product or group of products.

Elle comporte généralement à l'entrée un élément C pouvant être une chaîne à taquets, à barres, ou à godets, ou autre dispositif, assurant un pas fixe entre chaque produit ou groupage de produits.It generally comprises at the input an element C which can be a chain with cleats, bars, or buckets, or other device, ensuring a fixed pitch between each product or group of products.

Cet élément C est toujours parfaitement synchronisé avec la machine D.This element C is always perfectly synchronized with the machine D.

La cadence de la machine D est réglable. Elle peut s'arrêter et redémarrer automatiquement suivant des rampes d'accélération et de décélération données.The speed of the machine D is adjustable. It can stop and restart automatically following given acceleration and deceleration ramps.

4) SOLUTION PROPOSEE : MACHINE B
Notre idée est d'utiliser un tapis rétractable permettant de compenser automatiquement les fluctuations de la production A et les inerties de la machine à alimenter D en assurant la gestion de la vitesse de la machine D par rapport à la production A.4) PROPOSED SOLUTION: MACHINE B
Our idea is to use a retractable mat to automatically compensate for fluctuations in production A and the inertias of the machine to be fed D by managing the speed of machine D in relation to production A.

Descriptif du tapis rétractable B - Un bâti fixe supportant un tambour moteur et un rouleau de
détour.Description of the retractable belt B - A fixed frame supporting a motor drum and a roller
detour.

- Un chariot en liaison glissière par rapport au bâti supportant
le nez rétractable et des rouleaux de détour, motorisé en
translation.- A carriage in sliding connection with respect to the supporting frame
retractable nose and detour rollers, motorized
translation.

Ce montage permet au nez du tapis d'être déplacé sans modifier la vitesse d'avance des produits posés sur le tapis par rapport au bâti. This assembly allows the carpet nose to be moved without modifying the speed of advance of the products placed on the carpet with respect to the frame.

5) ANALYSE DU PROCEDE
Tout d'abord, le cas nécessitant le plus de déplacement du nez du tapis B est atteint lors de l'arrivée instantanée de produits à cadence maximale alors que la machine D est à l'arrêt. Le nez doit alors reculer d'un pas de l'élément C pour chaque produit.5) PROCESS ANALYSIS
First of all, the case requiring the most displacement of the nose of the belt B is reached during the instantaneous arrival of products at maximum rate while the machine D is stopped. The nose must then move back one step from element C for each product.

D'autre part, pour obtenir le temps nécessaire au recul du nez, on impose une vitesse constante du tapis B supérieure à celle de l'élément C lorsque celui-ci est à la cadence maximale et on doit détecter l'arrivée du produit suffisamment en amont du nez.On the other hand, to obtain the time necessary for the nose to recede, a constant speed of the carpet B is imposed which is greater than that of the element C when the latter is at maximum rate and the arrival of the product must be detected sufficiently upstream of the nose.

De plus, la survitesse du tapis B permet un espacement des produits nécessaire à leur traitement individuel. La détection de chaque produit et la survitesse seront calculées judicieusement pour éviter toute interférence.In addition, the overspeed of the belt B allows spacing of the products necessary for their individual treatment. The detection of each product and the overspeed will be calculated judiciously to avoid any interference.

Exemple
Cadence maximale arrivée produit : 100 produits/minute
Dimension d'un produit : 250 mm
Pas de l'élément C : 300 mm
Pas de l'élément B : légèrement supérieur à 600 mm
Détection du produit à 600 mm en amont du nez.Example
Maximum product arrival rate: 100 products / minute
Dimension of a product: 250 mm
Element pitch C: 300 mm
Element B pitch: slightly greater than 600 mm
Detection of the product 600 mm upstream from the nose.

A la détection de l'arrivée d'un produit, le nez du tapis B doit reculer de 300 mm pour se positionner à l'espace libre suivant, lorsque l'élément C est arrêté.Upon detection of the arrival of a product, the nose of the carpet B must retract by 300 mm to position itself in the next free space, when the element C is stopped.

Ce recul devra être effectué avant que le produit ne parvienne à cette position, soit à une vitesse moyenne au minimum égale à celle du tapis B.This reversal must be carried out before the product reaches this position, ie at an average speed at least equal to that of belt B.

Par contre, si la cadence de la machine D avait été de 100 Coups/ minute, le premier espace libre aurait avancé d'un pas de l'élément C soit 300 mm alors que le produit aurait avancé d'un pas du tapis B soit 600 mm. Comme la détection s'est effectuée à 600 mm du nez, celui-ci n'a pas à être bougé.On the other hand, if the rate of machine D had been 100 strokes / minute, the first free space would have advanced by one step of element C, i.e. 300 mm, while the product would have advanced by one step from mat B 600 mm. As the detection was carried out 600 mm from the nose, it does not have to be moved.

Enfin, si la cadence de la machine D avait été supérieure à celle d'arrivée des produits, le calcul ferait apparaître l'obligation d'avancer le nez du tapis B.Finally, if the rate of the machine D had been higher than that of the arrival of the products, the calculation would reveal the obligation to advance the nose of the belt B.

En conclusion, le recul du nez du tapis B impose l'accélération de la machine D, sa stabilité indique une cadence identique de la production A et de la machine D et son avance impose une décélération de la machine D.In conclusion, the retraction of the nose of the belt B imposes the acceleration of the machine D, its stability indicates an identical rate of production A and of the machine D and its advance imposes a deceleration of the machine D.

On peut donc gérer la vitesse de la machine D par la position du nez du tapis B en lui donnant une vitesse nulle lorsque celui-ci est en position allongée et une vitesse maximale en position rentrée, pourvu que l'accélération et la décélération de la machine D suivent des fonctions de la vitesse constante au cours du temps et symétriques. We can therefore manage the speed of the machine D by the position of the nose of the belt B by giving it a zero speed when the latter is in the extended position and a maximum speed in the retracted position, provided that the acceleration and deceleration of the machine D follow functions of constant speed over time and symmetrical.

Claims (2)

REVENDICATIONS 1) Dispositif pour alimenter automatiquement une machine d'emballage1) Device for automatically feeding a packaging machine (D) en produits individuels, caractérisé en ce que les produits (D) in individual products, characterized in that the products ne subissent aucune accumulation et en ce que le procédé gère do not undergo any accumulation and in that the process manages automatiquement le démarrage, la régulation de la vitesse et automatically start-up, speed regulation and l'arrêt de cette machine. I1 met en oeuvre un tapis rétractable stopping this machine. I1 implements a retractable mat permettant de compenser automatiquement les fluctuations de la to automatically compensate for fluctuations in the production, piloté par un automate qui assure de plus la gestion production, controlled by an automaton which also ensures management de vitesse de la machine d'emballage (D). speed of the packaging machine (D). 2) Dispositif selon la revendication 1 caractérisé en ce que le nez2) Device according to claim 1 characterized in that the nose du tapis (B) constitue un élément essentiel du système d'alimen carpet (B) is an essential part of the feeding system tation (C) par son déplacement en avant et en arrière assurant tation (C) by moving it forwards and backwards ensuring la dépose des produits.  the removal of the products.
FR9208702A 1992-07-10 1992-07-10 Method of automatically feeding a machine with individual products, and with automatic management of starting, speed regulation and stopping of this machine. Expired - Fee Related FR2693429B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9208702A FR2693429B3 (en) 1992-07-10 1992-07-10 Method of automatically feeding a machine with individual products, and with automatic management of starting, speed regulation and stopping of this machine.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9208702A FR2693429B3 (en) 1992-07-10 1992-07-10 Method of automatically feeding a machine with individual products, and with automatic management of starting, speed regulation and stopping of this machine.

Publications (2)

Publication Number Publication Date
FR2693429A3 true FR2693429A3 (en) 1994-01-14
FR2693429B3 FR2693429B3 (en) 1994-08-26

Family

ID=9431880

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9208702A Expired - Fee Related FR2693429B3 (en) 1992-07-10 1992-07-10 Method of automatically feeding a machine with individual products, and with automatic management of starting, speed regulation and stopping of this machine.

Country Status (1)

Country Link
FR (1) FR2693429B3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787105A1 (en) * 1994-11-01 1997-08-06 Lawrence Equipment, Inc. Reciprocating accumulation conveyor
US6932688B2 (en) 2001-10-12 2005-08-23 Teepak Properties, Llc Apparatus for automatically stuffing food casing
EP1581427A2 (en) * 2002-12-18 2005-10-05 Formax, Inc. Fill and packaging apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0787105A1 (en) * 1994-11-01 1997-08-06 Lawrence Equipment, Inc. Reciprocating accumulation conveyor
EP0787105A4 (en) * 1994-11-01 1999-01-27 Lawrence Equip Inc Reciprocating accumulation conveyor
US6932688B2 (en) 2001-10-12 2005-08-23 Teepak Properties, Llc Apparatus for automatically stuffing food casing
EP1581427A2 (en) * 2002-12-18 2005-10-05 Formax, Inc. Fill and packaging apparatus
EP1581427A4 (en) * 2002-12-18 2009-09-02 Formax Inc Fill and packaging apparatus

Also Published As

Publication number Publication date
FR2693429B3 (en) 1994-08-26

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