Method and system for manufacturing a number of tubular packagings filled with a liquid

A method, for manufacturing a number of tubular packagings filled with a liquid, comprising the steps of:

• providing a tube which is wound onto a first reel and is filled at least partially with the liquid, and
• unwinding the tube from the first reel and dividing it into a number of tubular segments by means of successive welding operations,
• wherein the tube is displaced through a welding device substantially vertically and substantially free of mechanical tension, and
• wherein a temperature prevailing in the welding device is kept substantially constant during each welding operation by having liquid circulate through the welding device.

A system for manufacturing a number of tubular packagings filled with a liquid, comprising:

• a feed device with a first reel for feeding a tube wound on the first reel and filled at least partially with the liquid, and
• a welding device for dividing the tube into a number of tubular segments by means of successive welding operations,
• further comprising displacing means co-acting with the welding device for the purpose of displacing the tube through the welding device substantially free of mechanical tension,
• wherein the displacing means are configured to displace the tube substantially vertically through the welding device, and
• further comprising a take-up device with a second reel, wherein the first and second reel are placed on different sides of the welding device.

A system for manufacturing a number of tubular packagings filled with a liquid, comprising:

• a feed device with a first reel for feeding a tube wound on the first reel and filled at least partially with the liquid, and
• a welding device for dividing the tube into a number of tubular segments by means of successive welding operations,
• further comprising displacing means co-acting with the welding device for the purpose of displacing the tube through the welding device substantially free of mechanical tension, wherein the displacing means are configured to displace the tube substantially vertically through the welding device, and
• further comprising temperature control means for keeping a temperature prevailing in the welding device substantially constant during each welding operation, which temperature control means are configured to circulate liquid through the welding device.