PL196554B1 - Method of and apparatus for tightly closing containers - Google Patents

Method of and apparatus for tightly closing containers

Info

Publication number
PL196554B1
PL196554B1 PL340268A PL34026800A PL196554B1 PL 196554 B1 PL196554 B1 PL 196554B1 PL 340268 A PL340268 A PL 340268A PL 34026800 A PL34026800 A PL 34026800A PL 196554 B1 PL196554 B1 PL 196554B1
Authority
PL
Poland
Prior art keywords
container
foil
edge
containers
plates
Prior art date
Application number
PL340268A
Other languages
Polish (pl)
Other versions
PL340268A1 (en
Inventor
Zbigniew Przybysz
Mariusz Chełmicki
Original Assignee
Zbigniew Przybysz
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 Zbigniew Przybysz filed Critical Zbigniew Przybysz
Priority to PL340268A priority Critical patent/PL196554B1/en
Priority to PCT/PL2001/000042 priority patent/WO2001089807A2/en
Publication of PL340268A1 publication Critical patent/PL340268A1/en
Publication of PL196554B1 publication Critical patent/PL196554B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7461—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool for making welds and cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B65B7/00—Closing containers or receptacles after filling
    • B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
    • B65B7/28—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by applying separate preformed closures, e.g. lids, covers
    • B65B7/2842—Securing closures on containers
    • B65B7/2878—Securing closures on containers by heat-sealing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2793/00—Shaping techniques involving a cutting or machining operation
    • B29C2793/0009—Cutting out
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5342—Joining single elements to open ends of tubular or hollow articles or to the ends of bars a substantially flat extra element being placed between and clamped by the joined single elements and the end of said tubular or hollow articles
    • B29C66/53421—Joining single elements to open ends of tubular or hollow articles or to the ends of bars a substantially flat extra element being placed between and clamped by the joined single elements and the end of said tubular or hollow articles said substantially flat extra element being flexible, e.g. a membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Closing Of Containers (AREA)

Abstract

A method in which a film (7) is fed from a roll, and is clamped between plates (21, 22) of a device. Said film (7) is then heated and stretched to form a dished lid (28). Said lid is introduced to an opening of a container (3) and fused to an edge (20) of said container and then is cut off outside said edge (20) of said container (3). A device co-operating with conveyor belt (2) that delivers said containers (3) comprises a sealing head (6) synchronised with a film feeder (5). Said sealing head is mounted on a central vertical servo (8) and comprises a punch (9), a ring-shaped heater (10) and a circumferential cutter (12). Said device is also equipped with plates (21, 22) fixed to servos (25). Said plates (21, 22) have holes (26, 27).

Description

Rzeczypospolitej Polskiej (22) Data zgłoszenia: 23.05.2000 (19) PL (11) 196554 (13) B1 (51) Int.Cl.Rzeczpospolitej Polskiej (22) Date of notification: May 23, 2000 (19) PL (11) 196554 (13) B1 (51) Int.Cl.

B65B 7/28 (2006.01)B65B 7/28 (2006.01)

B29C 65/48 (2006.01)B29C 65/48 (2006.01)

Sposób szczelnego zamykania pojemników i urzą dzenie do szczelnego zamykania pojemnikówA method for sealing containers and a device for sealing containers

(73) Uprawniony z patentu: (73) The right holder of the patent: Przybysz Zbigniew,Dzierzgoń,PL Przybysz Zbigniew, Dzierzgoń, PL (43) Zgłoszenie ogłoszono: (43) Application was announced: 03.12.2001 BUP 25/01 03.12.2001 BUP 25/01 (72) Twórca(y) wynalazku: (72) Inventor (s): Zbigniew Przybysz,Dzierzgoń,PL Mariusz Chełmicki,Dzierzgoń,PL Zbigniew Przybysz, Dzierzgoń, PL Mariusz Chełmicki, Dzierzgoń, PL (45) O udzieleniu patentu ogłoszono: (45) The grant of the patent was announced: 31.01.2008 WUP 01/08 31.01.2008 WUP 01/08 (74) Pełnomocnik: (74) Representative: Pęcina Józef Pęcina Józef

(57) 1. Sposób szczelnego zamykania pojemników, zwłaszcza wiader z tworzyw sztucznych, przemieszczanych przenośnikiem taśmowym i ustawianych centrycznie pod głowicą urządzenia zamykającego pojemniki pokrywkami wykonywanymi z folii, w którym obrzeże kołowej powierzchni folii przeznaczonej na wykonanie pokrywki zaciska się płytami urządzenia, kołową powierzchnię folii wprowadza tłokiem do otworu pojemnika, dociska brzeg kołowej powierzchni do krawędzi pojemnika, odcina folię po zewnętrznej stronie krawędzi już zamkniętego pojemnika, znamienny tym, że przed wprowadzeniem kołowej powierzchni (18) folii do pojemnika (3), podgrzewa się pierścieniową powierzchnię (17) i zgrzew (29) kołowej powierzchni (18) folii ze ścianką (30) pojemnika (3) wykonuje się po wewnętrznej stronie krawędzi (20) pojemnika (3). (57) 1. Method of sealing containers, in particular plastic buckets, moved by a conveyor belt and placed centrally under the head of the device closing the containers with lids made of foil, in which the rim of the circular surface of the foil intended for making the lid is clamped with the plates of the device, the circular surface of the foil drives the piston into the opening of the container, presses the edge of the circular surface against the edge of the container, cuts the foil on the outer side of the edge of the already closed container, characterized in that before inserting the circular surface (18) of the foil into the container (3), the annular surface (17) is heated and the welding (29) of the circular surface (18) of the foil to the wall (30) of the container (3) is made on the inside of the edge (20) of the container (3).

PL 196 554 B1PL 196 554 B1

Opis wynalazkuDescription of the invention

Przedmiotem wynalazku jest sposób szczelnego zamykania pojemników, zwłaszcza wiader z tworzyw sztucznych i urządzenie do szczelnego zamykania pojemników.The subject of the invention is a method for sealing containers, in particular plastic buckets, and a device for sealing containers.

Znany jest sposób szczelnego zamykania pojemników z amerykańskiego opisu patentowego nr 4 888 935. Sposób ten polega na zamykaniu pojemnika pokrywą o miseczkowatym kształcie, wykonaną z materiału przewodzącego ciepło, korzystnie z folii metalowej. Przygotowaną uprzednio pokrywkę o miseczkowatym kształcie, ustawia się wgłębieniem w kierunku wnętrza pojemnika wykonanego z tworzywa sztucznego tak, że zewnętrzny obszar pokrywki styka się z wewnętrzną krawędzią kołnierza pojemnika. Spojenie pokrywki z pojemnikiem następuje pod wpływem działania nacisku stożkowego tłoka o podwyższonej temperaturze. Pod wpływem temperatury i ciśnienia następuje stopienie krawędzi pojemnika i spojenie jej z materiałem przykrywki.A method of sealing containers is known from US Patent No. 4,888,935. The method consists in closing the container with a cup-shaped lid made of a heat-conducting material, preferably a metal foil. The cup-shaped lid, prepared in advance, is positioned with the recess towards the interior of the plastic container such that the outer area of the cover contacts the inner edge of the container flange. The joint of the lid with the container is caused by the pressure of a conical piston at an increased temperature. Under the influence of temperature and pressure, the edge of the container melts and fuses with the cover material.

Znane jest również z europejskiego opisu patentowego EP 0 559 290 A urządzenie do szczelnego zamykania pojemników. Pojemniki przemieszczane są przenośnikiem taśmowym i ustawiane centrycznie pod głowicami urządzenia zamykającego i zamykane pokrywkami wykonywanymi z folii podawanej z rolki poprzez układ krążków. Urządzenie posiada ruchome głowice wyposażone w tłoki, obwodowe grzałki zgrzewające pokrywki z kołnierzami pojemników i obwodowe noże. Folia zaciskana jest pomiędzy dwiema płytami, tłoki wprowadzają folię do pojemników, odbywa się zgrzewanie folii na kołnierzach pojemników i następnie obcięcie folii po zewnętrznej stronie kołnierzy pojemników.A device for sealing containers is also known from EP 0 559 290 A. The containers are moved by a belt conveyor and placed centrally under the heads of the closing device and closed with lids made of foil fed from a roll through a system of rollers. The device has movable heads equipped with pistons, peripheral heaters for welding lids with flanges of containers and peripheral knives. The foil is clamped between two plates, the pistons introduce the foil into the containers, the foil is welded on the flanges of the containers and then the foil is cut on the outside of the flanges of the containers.

Uszczelnianie pojemników sposobem według wynalazku polega na tym, że kołową powierzchnię folii, którą zamykany jest pojemnik, podgrzewa się na obwodowej pierścieniowej powierzchni i zgrzew powierzchni folii ze ś cianką pojemnika wykonuje się po wewnę trznej stronie krawę dzi pojemnika. Używana do uszczelnienia folia może być pokryta substancją klejącą po stronie, która styka się z pojemnikiem. Substancją klejącą może być pokryta krawędź pojemnika, lub substancją klejącą może być pokryta jednocześnie folia i krawędź pojemnika. W przypadku potrzeby, uszczelniony pojemnik zamyka się dodatkowo znaną pokrywą.Sealing the containers with the method according to the invention consists in heating the circular surface of the foil with which the container is closed on the circumferential annular surface and welding the foil surface to the container wall on the inside of the container edge. The foil used for sealing may be covered with an adhesive on the side that is in contact with the container. The adhesive can cover the edge of the container, or the adhesive can cover both the foil and the edge of the container. If necessary, the sealed container is additionally closed with a known lid.

Cechą istotną urządzenia jest to, że posiada obwodową grzałkę z dwiema pierścieniowymi powierzchniami roboczymi przesuniętymi w pionie względem siebie. Niższa powierzchnia wewnętrzna grzałki, podgrzewa pierścieniową powierzchnię kołowej powierzchni folii w celu umożliwienia jej rozciągnięcia, a powierzchnia pierścieniowa wyższa zgrzewa brzegi kołowej powierzchni folii z wewnętrzną stroną krawędzi pojemnika. Obwodowy nóż obcinający folię po zewnętrznej stronie krawędzi pojemnika jest nożem mechanicznym, ale może być również nożem termicznym obcinającym folię przez stopienie.A significant feature of the device is the fact that it has a peripheral heater with two annular working surfaces shifted vertically relative to each other. The lower inner surface of the heater heats the annular surface of the circular surface of the foil to allow it to stretch, and the upper annular surface welds the edges of the circular surface of the foil to the inner side of the edge of the container. The circumferential foil cutter on the outer side of the container edge is a mechanical cutter, but it can also be a thermal cutter to cut the foil by melting.

Poprzez zastosowanie wynalazku uzyskuje się możliwość usytuowania pokrywki wykonanej z folii poniżej krawędzi pojemnika, co z kolei daje moż liwość założenia pokrywy na pojemnik. Założenie pokrywy gwarantuje bardzo wysoki stopień uszczelnienia pojemnika i dużą wytrzymałość mechaniczną, potrzebną w przypadku transportu pojemników, gdy zachodzi potrzeba stawiania pojemników jednego na drugim. Zastosowanie pokrywek o miseczkowatym kształcie powoduje usunięcie znacznej części powietrza znad produktu znajdującego się w pojemniku.By using the invention, it is possible to position the lid made of foil below the edge of the container, which in turn makes it possible to attach the lid to the container. The installation of the cover guarantees a very high degree of sealing of the container and high mechanical strength, necessary for the transport of containers, when there is a need to stack containers on top of each other. The use of cup-shaped lids removes a significant part of the air above the product in the container.

Przedmiot wynalazku w przykładach wykonania przedstawiony jest na rysunku, na którym fig. 1 przedstawia urządzenie do szczelnego zamykania pojemników w widoku z boku, fig. 2 - widok urządzenia z przekrojem głowicy, fig. 3 - schemat ustawienia elementów głowicy przy podgrzewaniu pierścieniowej powierzchni folii, fig. 4 - schemat formowania zagłębienia pokrywki, fig. 5 - schemat zgrzewania pokrywki z krawędzią pojemnika, fig. 6 - przedstawia schemat zgrzewania pokrywki po wewnętrznej stronie krawędzi na powierzchni ścianki pojemnika, a fig. - 7 uszczelniony pojemnik przykryty dodatkowo pokrywą.The subject of the invention in its exemplary embodiments is shown in the drawing, in which fig. 1 shows the device for sealing containers in a side view, fig. 2 - a view of the device with a cross-section of the head, fig. 3 - a diagram of the positioning of the head elements when heating the annular surface of the foil, fig. Fig. 4 - a diagram of the lid recess formation, Fig. 5 - a diagram of the sealing of the lid to the container edge, Fig. 6 - a diagram of the sealing of the lid on the inner side of the edge on the surface of the container wall, and Fig. 7 - a sealed container additionally covered with a lid.

Urządzenie według wynalazku jest osadzone na wspólnej podstawie 1 z przenośnikiem taśmowym 2 dostarczającym do urządzenia pojemniki 3 napełnione najczęściej substancją płynną. Na przestrzennej ramie 4 urządzenia, zamontowany jest podajnik 5 folii oraz siłowniki, czujniki, przekaźniki czasowe, wyłączniki krańcowe i skrzynka sterownicza. Podstawowym zespołem urządzenia jest głowica 6, której działanie jest zsynchronizowane z przenośnikiem 2 pojemników 3 i z podajnikiem 5 folii 7. Głowica 6 osadzona jest na centralnym pionowym siłowniku 8, składa się z tłoka 9, obwodowej grzałki 10 zamocowanej na obsadzie 11, obwodowego noża 12 oraz sprężyn 13 osadzonych pomiędzy obsadą 11 grzałki 10 i obsadą 14 obwodowego noża 12. Obwodowa grzałka 10 posiada dwie pierścieniowe powierzchnie robocze 15, 16 przesunięte w pionie względem siebie, z których powierzchnia niższa 15 podgrzewa pierścieniową powierzchnię 17 kołowej powierzchni 18The device according to the invention is mounted on a common base 1 with a conveyor belt 2 delivering to the device containers 3 usually filled with a liquid substance. On the spatial frame 4 of the device, there is a foil feeder 5 as well as actuators, sensors, time relays, limit switches and a control box. The basic unit of the device is the head 6, the operation of which is synchronized with the conveyor 2 of containers 3 and with the foil feeder 5 7. The head 6 is mounted on a central vertical actuator 8, consists of a piston 9, a peripheral heater 10 mounted on a holder 11, a peripheral knife 12 and springs 13 embedded between the holder 11 of the heater 10 and the holder 14 of the circumferential knife 12. The peripheral heater 10 has two annular working surfaces 15, 16 vertically offset to each other, the lower surface of which 15 heats the annular surface 17 of the circular surface 18

PL 196 554 B1 folii w celu umożliwienia jej rozciągnięcia i trwałego odkształcenia, a powierzchnia wyższa 16 zgrzewa brzegi 19 kołowej powierzchni folii z wewnętrzną stroną krawędzi 20 pojemnika. Dolna część urządzenia ma dwie poziome płyty 21, 22 z których górna 21 jest podtrzymywana przez osłony 23 tłoczysk 24 siłowników 25, a dolna 22 jest ruchoma i zawieszona na tłoczyskach 24 siłowników 25. Pomiędzy płytami 21, 22 przemieszcza się folia 7 rozwijana z rolek podajnika 5.In order to allow the film to be stretched and permanently deformed, the upper surface 16 welds the edges 19 of the circular surface of the film to the inside of the edge 20 of the container. The lower part of the device has two horizontal plates 21, 22 of which the upper 21 is supported by the covers 23 of the piston rods 24 of the cylinders 25, and the lower 22 is movable and suspended on the piston rods 24 of the cylinders 25. The film 7 is rolled from the feeder rolls between the plates 21, 22. 5.

Płyty 21, 22 posiadają otwory 26, 27 przez które przemieszcza się tłok 9, obwodowa grzałka 10 oraz obwodowy nóż 12 wyposażony w ząbki, w czasie formowania pokrywki 28 i jej zgrzewania z krawędzią 20 pojemnika 3 oraz w czasie obcinania folii. W odmiennej wersji wykonania głowicy, obwodowy nóż może być nożem termicznym obcinającym folię po zewnętrznej stronie krawędzi 20 pojemnika 3, poprzez jej przetapianie.The plates 21, 22 have holes 26, 27 through which the piston 9, the peripheral heater 10 and the peripheral knife 12 are moved with teeth, during the formation of the cover 28 and its welding to the edge 20 of the container 3 and during the cutting of the foil. In a different version of the head version, the circumferential knife can be a thermal knife that cuts the foil on the outer side of the edge 20 of the container 3 by melting it.

Podczas pracy urządzenia, przenośnik 2 przemieszcza pojemnik 3 i za pomocą znanych czujników ustawia go centrycznie pod głowicą 6. Płyta dolna 22 unosi się do góry, unieruchamia folię 7 zaciskając ją pomiędzy płytą dolną 22 i górną 21. Włącza się obwodowa grzałka 10 i podgrzewa pierścieniową powierzchnię 17 kołowej powierzchni 18 folii, a następnie tłok 9 przesuwa się w dół, rozciąga folię na podgrzanej pierścieniowej powierzchni 17 i formuje pokrywkę 28. Zaciśnięte płyty 21, 22, obwodowa grzałka 10 i wysunięty tłok 9 schodzą w dół, brzegi 19 kołowej powierzchni 18 folii za pomocą powierzchni 16 obwodowej grzałki 10 zostają dociśnięte do wewnętrznej powierzchni krawędzi 20 pojemnika 3 i następuje zgrzanie folii z krawędzią 20 pojemnika 3. Obwodowy nóż 12 schodzi w dół i obcina folię 7 po zewnętrznej stronie krawę dzi 20 pojemnika 3. Głowica 6 wraz z płytą dolną 22 i górną 21 podnosi się do góry, folia 7 zostaje przemieszczona podajnikiem 5 i urzą dzenie jest przygotowane do uszczelnienia następnego kolejnego pojemnika 3.During the operation of the device, the conveyor 2 moves the container 3 and, by means of known sensors, places it centrally under the head 6. The bottom plate 22 rises up, fixes the foil 7 by clamping it between the bottom 22 and the upper plate 21. The peripheral heater 10 is turned on and the ring heater is heated. surface 17 of the circular surface 18 of the foil, and then the piston 9 moves downwards, stretches the foil over the heated annular surface 17 and forms a lid 28. The clamped plates 21, 22, the peripheral heater 10 and the extended piston 9 go down, the edges 19 of the circular surface 18 of the foil by means of the peripheral surface 16 of the heater 10 are pressed against the inner surface of the edge 20 of the container 3 and the foil is welded to the edge 20 of the container 3. The circumferential knife 12 goes down and cuts the foil 7 on the outer side of the edge 20 of the container 3. The head 6 together with bottom 22 and top 21 plates are lifted up, the foil 7 is moved by the conveyor 5 and the device is ready for sealing and a next additional container 3.

Claims (6)

Zastrzeżenia patentowePatent claims 1. Sposób szczelnego zamykania pojemników, zwłaszcza wiader z tworzyw sztucznych, przemieszczanych przenośnikiem taśmowym i ustawianych centrycznie pod głowicą urządzenia zamykającego pojemniki pokrywkami wykonywanymi z folii, w którym obrzeże kołowej powierzchni folii przeznaczonej na wykonanie pokrywki zaciska się płytami urządzenia, kołową powierzchnię folii wprowadza tłokiem do otworu pojemnika, dociska brzeg kołowej powierzchni do krawędzi pojemnika, odcina folię po zewnętrznej stronie krawędzi już zamkniętego pojemnika, znamienny tym, że przed wprowadzeniem kołowej powierzchni (18) folii do pojemnika (3), podgrzewa się pierścieniową powierzchnię (17) i zgrzew (29) kołowej powierzchni (18) folii ze ścianką (30) pojemnika (3) wykonuje się po wewnętrznej stronie krawędzi (20) pojemnika (3).The method of sealing containers, especially plastic buckets, moved by a conveyor belt and placed centrally under the head of the device closing the containers with lids made of foil, in which the rim of the circular surface of the foil intended for making the lid is clamped with the plates of the device, the circular surface of the foil is introduced by a piston into the opening of the container, presses the edge of the circular surface against the edge of the container, cuts the foil on the outer side of the edge of the already closed container, characterized in that before inserting the circular surface (18) of the foil into the container (3), the annular surface (17) is heated and the weld (29) ) the circular film surface (18) with the wall (30) of the container (3) is provided on the inside of the edge (20) of the container (3). 2. Sposób według zastrz. 1, znamienny tym, że folię (7) po stronie która styka się z pojemnikiem (3), pokrywa się substancją klejącą.2. The method according to p. The method of claim 1, characterized in that the foil (7) is covered with an adhesive on the side that is in contact with the container (3). 3. Sposób według zastrz. 1, znamienny tym, że krawędź (20) pojemnika (3) pokrywa się substancją klejącą.3. The method according to p. The method of claim 1, characterized in that the edge (20) of the container (3) is covered with an adhesive. 4. Sposób według zastrz. 1, znamienny tym, że zarówno folię (7) po stronie która styka się z pojemnikiem (3) jak i krawędź (20) pojemnika (3) pokrywa się substancją klejącą.4. The method according to p. The method of claim 1, characterized in that both the foil (7) on the side that contacts the container (3) and the edge (20) of the container (3) are covered with an adhesive. 5. Sposób według zastrz. 1 albo 2, albo 3, albo 4, znamienny tym, że po szczelnym zamknięciu pojemnika (3) pokrywką (28) z folii, pojemnik (3) zamyka się dodatkowo znaną pokrywą (31).5. The method according to p. 3. The container as claimed in claim 1, 2, 3 or 4, characterized in that after the container (3) is sealed with a foil lid (28), the container (3) is additionally closed with a known cover (31). 6. Urządzenie do szczelnego zamykania pojemników, zwłaszcza wiader z tworzyw sztucznych, współpracujące z przenośnikiem podającym pojemniki, wyposażone w przestrzenną ramę oraz osadzone na niej siłowniki, czujniki, przekaźniki czasowe, wyłączniki krańcowe i skrzynkę sterowniczą, oraz posiadające głowicę której działanie jest zsynchronizowane z podajnikiem folii, przy czym głowica składa się z tłoka, obwodowej grzałki i obwodowego noża, zaś dolna część urządzenia ma dwie poziome płyty, pomiędzy którymi przemieszcza się folia, przy czym płyty zaopatrzone są w otwory umożliwiające przejście tłoka i obwodowej grzałki oraz obwodowego noża w kierunku umieszczonego pod głowicą pojemnika, znamienne tym, że obwodowa grzałka (10) ma dwie pierścieniowe powierzchnie robocze (15, 16) przesunięte w pionie względem siebie, z których powierzchnia niższa (15) jest usytuowana po stronie wewnętrznej, a powierzchnia wyższa (16) po stronie zewnętrznej, zaś obwodowy nóż (12) może być nożem termicznym obcinającym folię po zewnętrznej stronie krawędzi (20) pojemnika (37).6. Device for sealing containers, especially plastic buckets, cooperating with the conveyor feeding containers, equipped with a spatial frame and mounted on it actuators, sensors, time relays, limit switches and a control box, and having a head synchronized with the feeder foil, the head consists of a piston, a peripheral heater and a peripheral knife, and the lower part of the device has two horizontal plates between which the foil moves, the plates are provided with holes enabling the passage of the piston and peripheral heater and a peripheral knife towards the placed under the container head, characterized in that the peripheral heater (10) has two annular working surfaces (15, 16) vertically offset to each other, of which the lower surface (15) is located on the inside, and the upper surface (16) on the external, and the circumferential knife (12) may be a thermal knife cut off the foil on the outer side of the edge (20) of the container (37).
PL340268A 2000-05-23 2000-05-23 Method of and apparatus for tightly closing containers PL196554B1 (en)

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PCT/PL2001/000042 WO2001089807A2 (en) 2000-05-23 2001-05-16 Method and device for leakproof sealing a lid to a container

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DE102010019856B4 (en) * 2010-05-07 2015-02-19 Itec-Ingenieurbüro für Hygiene Und Lebensmitteltechnik GmbH Method and device for closing a stackable reusable transport and storage box by means of a protective film
US20160152360A1 (en) * 2011-07-07 2016-06-02 Berry Plastics Corporation Lid sealing system
FR3019538B1 (en) * 2014-04-02 2017-02-17 Sidel Participations METHOD OF CLOSING A HOLLOW CONTAINER, RECIPIENT MOUTH OBTAINED BY SUCH A METHOD AND USE OF SUCH A MOUTH CONTAINER
WO2021187293A1 (en) 2020-03-16 2021-09-23 株式会社ヤクルト本社 Heat-sealing device

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DE2404197A1 (en) * 1974-01-29 1975-07-31 Friedrich Albrecht Prepared lid placing system on container - uses thin lid held against container edge during securing operation
US4888935A (en) * 1988-07-25 1989-12-26 Campbell Soup Company Method for sealing a lid to a container
JP2578668Y2 (en) * 1992-03-06 1998-08-13 四国化工機株式会社 Container sealing device

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