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1. WO2020142377 - METHOD AND APPARATUS FOR MAKING BAGS WITH HEM SEALS

Publication Number WO/2020/142377
Publication Date 09.07.2020
International Application No. PCT/US2019/068751
International Filing Date 27.12.2019
IPC
B31B 70/81 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
70Making flexible containers, e.g. envelopes or bags
74Auxiliary operations
81Forming or attaching accessories, e.g. opening devices, closures or tear strings
B31B 70/64 2017.1
BPERFORMING OPERATIONS; TRANSPORTING
31MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
70Making flexible containers, e.g. envelopes or bags
60Uniting opposed surfaces or edges; Taping
64by applying heat or pressure
B29C 65/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining of preformed parts; Apparatus therefor
CPC
B29C 65/10
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
02by heating, with or without pressure
10using hot gases ; (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
B29C 65/787
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
78Means for handling the parts to be joined, e.g. for making containers or hollow articles ; , e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
7858characterised by the feeding movement of the parts to be joined
7861In-line machines, i.e. feeding, joining and discharging are in one production line
787using conveyor belts or conveyor chains
B29C 65/7894
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
65Joining ; or sealing; of preformed parts ; , e.g. welding of plastics materials; Apparatus therefor
78Means for handling the parts to be joined, e.g. for making containers or hollow articles ; , e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
7858characterised by the feeding movement of the parts to be joined
7888Means for handling of moving sheets or webs
7894of continuously moving sheets or webs
B29C 66/135
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
66General aspects of processes or apparatus for joining preformed parts
01General aspects dealing with the joint area or with the area to be joined
05Particular design of joint configurations
10particular design of the joint cross-sections
13Single 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
135Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
B29C 66/1352
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
66General aspects of processes or apparatus for joining preformed parts
01General aspects dealing with the joint area or with the area to be joined
05Particular design of joint configurations
10particular design of the joint cross-sections
13Single 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
135Single hemmed joints, i.e. one of the parts to be joined being hemmed in the joint area
1352Single hem to hem joints
B29C 66/431
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
66General aspects of processes or apparatus for joining preformed parts
40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
41Joining substantially flat articles
43Joining a relatively small portion of the surface of said articles
431Joining the articles to themselves
Applicants
  • CMD CORPORATION [US]/[US]
Inventors
  • RYMER, Timothy
  • SAUDER, Charles
  • JANSEN, Thomas
  • FRIEVALT, Curt
  • BEINEMA, Scott
Agents
  • OLEJNICZAK, Aaron, T.
Priority Data
16/727,71926.12.2019US
62/787,53902.01.2019US
62/787,67402.01.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR MAKING BAGS WITH HEM SEALS
(FR) PROCÉDÉ ET APPAREIL POUR FABRIQUER DES SACS AVEC DES JOINTS D'OURLET
Abstract
(EN)
A method and apparatus for making bags with hem seals is disclosed. The machine includes an infeed section and a draw tape section. Bags are made from a film and a film path extends through the infeed section and through the draw tape section. The draw tape section includes a hem sealer that includes a stationary sealing plate on one side of the film path such that film path passes across the stationary plate. A sealing head is on the second side of the film path, opposite the first side, such that the film following the film path passes between the sealing head and the stationary plate. A sealing section may be included. The draw tape section may include driven infeed an outfeed nips.
(FR)
L'invention concerne un procédé et un appareil pour fabriquer des sacs avec des joints d'ourlet. La machine comprend une section d'alimentation et une section de bande d'étirage. Des sacs sont fabriqués à partir d'un film et un trajet de film s'étend à travers la section d'alimentation et à travers la section de bande d'étirage. La section de bande d'étirage comprend un dispositif de joint d'ourlet qui comprend une plaque d'étanchéité fixe sur un côté du trajet de film de telle sorte que le trajet de film passe à travers la plaque fixe. Une tête d'étanchéité est présente sur le second côté du trajet de film, opposé au premier côté, de telle sorte que le film suivant le trajet de film passe entre la tête d'étanchéité et la plaque fixe. Une section d'étanchéité peut être incluse. La section de bande d'étirage peut comprendre une alimentation entraînée et des lignes de contact de sortie.
Also published as
Latest bibliographic data on file with the International Bureau