Device for the production of tubular bags
AssigneeCMD Corporation
InventorsThomas Matheyka, Christian Helwig
Life of this patent
Estimating the term…
Abstract
A device for producing tubular bags filled with bulk goods from continuous foil tubes. The device includes a pair of sealing tools that seal or weld the foil tubes in bag-length intervals. A pair of closing bars connected to the sealing tools are biased toward each other and press the foil tubes before the sealing tools are closed. A stripper is provided to remove the residue of the bulk goods from the area of the seal by a wiping motion in the direction of bag movement through the device. The closing bars are connected to the stripper so that through a closing movement of the closing bars, the stripper is pulled along in the run direction of the foil while touching the foil to strip the area to be sealed before the sealing tools close.
Claims14
A device for the production of tubular bags filled with bulk goods from a continuous foil tube moving in a run direction comprising:
- a pair of sealing tools that seal the foil tube in bag-length intervals;
- a pair of closing bars provided for the tools and directly clamped to the sealing tools, each closing bar biased toward the other closing bar for pressing the foil tube before the sealing tools are closed;
- a stripper, which can touch the foil tube, through which the residue of the bulk goods can be removed from the area of the seal by a wiping motion of a first end of the stripper effective in the run direction and wherein the stripped has a pivotably mounted second end;
- wherein the closing bars are connected to the stripper so that through a closing movement of the closing bars, the stripper is pulled along in the run direction while touching the foil before the sealing tools close, and further wherein the closing bars are connected to support bars which pass through clamps positioned on the sealing tools and wherein each support bar is loaded against the closing movement of the sealing tools by a return spring.
A device for the production of tubular bags filled with bulk goods from a continuous foil tube moving through the device comprising:
- a pair of moveable sealing tools positioned on opposite sides of the foil tube, the sealing tools configured to come together to seal the tube, each sealing tool including
- a closing bar biased toward the closing bar on the opposing sealing tool and adapted to move with the sealing tool to contact the tube, wherein the closing bars are biased toward each other by a spring;
- a sealing jaw positioned opposite the sealing jaw on the opposing sealing tool so that when the sealing tools come together the sealing jaws contact the tube to thereby seal the tube;
- and
- a stripper located downstream from the closing bar in the direction of movement of the foil tube and having a first end configured to move along the tube in the direction the tube is moving to strip the bulk goods away from the area of the tube to be sealed at the same time that the sealing jaw is moving toward the tube;
- wherein the stripper has a pivotably attached second end;
- wherein each sealing tool further comprises a support bar connected to the closing bar and aligned in the direction of movement of the closing bar, and the support bar is configured to move in a direction generally perpendicular to the movement of the tube against the bias on the closing bar tube.
A device for the production of tubular bags filled with bulk goods from a continuous foil tube moving through the device comprising:
- a pair of moveable sealing tools positioned on opposite sides of the foil tube, the sealing tools configured to come together to seal the tube each sealing tool including
- a closing bar biased toward the closing bar on the opposing sealing tool and adapted to move with the sealing tool to contact the tube, wherein the closing bars are biased toward each other by a spring;
- a sealing jaw positioned opposite the sealing jaw on the opposing sealing tool so that when the sealing tools come together the sealing jaws contact the tube to thereby seal the tube;
- and
- a stripper, comprising a stripper bar, located downstream from the closing bar in the direction of movement of the foil tube and having a first end configured to move along the tube in the direction the tube is moving to strip the bulk goods away from the area of the tube to be sealed at the same time that the sealing jaw is moving toward the tube;
- wherein the stripper has a pivotably attached second end;
- wherein the stripper bar is connected to the closing bar so that movement of the closing bar causes movement of the stripper bar along the tube in the direction the tube is moving.
Dependencies are inferred from the claim text.