Tray sealing machine

Patent metadata

Field	Value
Publication number	US-11459137-B2
Application number	US-202016865877-A
Country	US
Kind code	B2
Filing date	May 4, 2020
Priority date	May 3, 2019
Publication date	Oct 4, 2022
Grant date	Oct 4, 2022

Abstract

A tray sealing machine is provided with a frame on which a sealing tool is arranged. The sealing tool comprises a lower tool in which a tray to be sealed can be received and an upper tool including a hood, a sealing component arranged in the interior of the hood, and a sealing component carrier on which the sealing component is arranged. The hood is movable relative to the sealing component and has a gas connection configured for connection to a corresponding gas connection of the tray sealing machine. The lower tool and the hood are configured to form a sealing chamber in a closed state of the sealing tool. The sealing tool further comprises a line connecting the gas connection to the sealing chamber in the closed state. The hood is movable relative to the frame and the sealing component carrier is unmovable relative to the frame.

First claim

What is claimed is:

1. A tray sealing machine comprising:
a frame;
a sealing tool arranged on the frame, the sealing tool comprising:
a lower tool in which a tray to be sealed can be received;
an upper tool which comprises a hood and a sealing component arranged in an interior of the hood, wherein the hood is movable relative to the sealing component and has a first gas connection which is configured for a connection to an additional gas connection of the tray sealing machine, wherein the upper tool furthermore comprises a sealing component carrier on which the sealing component is arranged;
wherein the lower tool and the hood are configured to form a sealing chamber in a closed state of the sealing tool;
a first line, which, in the closed state of the sealing tool, connects the first gas connection to the sealing chamber, the first line including a first line section and a second line section, wherein the first line section runs through the lower tool and, only in the closed state of the sealing tool, is connected to the second line section, which leads to the first gas connection, at least partially runs through the hood, and is connected to the hood in an unmovable manner;

wherein the hood is movable relative to the frame and the sealing component carrier is unmovable relative to the frame.

2. The tray sealing machine according to claim 1 , wherein the sealing component is arranged on the sealing component carrier in a movable manner.

3. The tray sealing machine according to claim 1 , wherein both the first line section and the second line section are connected to the sealing chamber.

4. The tray sealing machine according to claim 1 , wherein the second line section runs entirely within a hood wall of the hood.

5. The tray sealing machine according to claim 1 , wherein the hood is slidable relative to the frame by the lower tool in a closing direction.

6. The tray sealing machine according to claim 1 , wherein the hood is slidable relative to the sealing component carrier by the lower tool in a closing direction.

7. The tray sealing machine according to claim 1 , further comprising a second gas connection arranged on the hood and a second line, which, in the closed state of the sealing tool, connects the second gas connection to the sealing chamber, wherein a first line section of the second line runs through the lower tool and in the closed state of the sealing tool is connected to a second line section of the second line, which leads to the second gas connection, at least partially runs through the hood, and is connected to the hood in an unmovable manner.

8. The tray sealing machine according to claim 7 , wherein the second line section of the second line runs entirely within a hood wall of the hood.

9. The tray sealing machine according to claim 8 , wherein the first line is arranged on a first side of the sealing tool and the second line is arranged on a second, different side of the sealing tool.

10. The tray sealing machine according to claim 7 , wherein the first line is arranged on a first side of the sealing tool and the second line is arranged on a second, different side of the sealing tool.

11. The tray sealing machine according to claim 10 , wherein the first side is opposite the second side in relation to a direction of production.

12. The tray sealing machine according to claim 7 , wherein the first line section of the second line is disconnected from the second line section of the second line when the sealing tool is in an open state.

13. The tray sealing machine according to claim 1 , wherein the hood is produced in a generative process.

14. The tray sealing machine according to claim 1 , wherein the additional gas connection is arranged on the frame.

15. A tray sealing machine comprising:
a frame;
a first gas connection arranged on the frame; and
a sealing tool arranged on the frame, the sealing tool comprising:
a lower tool in which a tray to be sealed can be received;
an upper tool that comprises a hood, a sealing component arranged in an interior of the hood, and a sealing component carrier on which the sealing component is arranged, wherein the hood is movable relative to the sealing component and has a second gas connection and a third gas connection, wherein the second gas connection is configured for connection to the first gas connection arranged on the frame;
wherein the lower tool and the hood are configured to form a sealing chamber in a closed state of the sealing tool;
a first line, which, in the closed state of the sealing tool, connects the second gas connection to the sealing chamber, the first line including a first line section and a second line section, wherein the first line section runs through the lower tool and, in the closed state of the sealing tool, is connected to the second line section, which leads to the second gas connection, at least partially runs through the hood, and is connected to the hood in an unmovable manner; and
a second line, which, in the closed state of the sealing tool, connects the third gas connection to the sealing chamber, wherein a first line section of the second line runs through the lower tool and in the closed state of the sealing tool is connected to a second line section of the second line, which leads to the third gas connection, at least partially runs through the hood, and is connected to the hood in an unmovable manner;
wherein, in an open state of the sealing tool, the first line section of the first line is disconnected from the second line section of the first line, and the first line section of the second line is disconnected from the second line section of the second line;
wherein the hood is movable relative to the frame, and the sealing component carrier is fixed with respect to the frame so that the sealing component carrier is unmovable relative to the frame.

Assignees

• Multivac Haggenmueller Kg

Inventors

• Mader Andreas
• Gabler Albert
• Harlacher Dominik

Classifications

• B65B31/028 Primary

  closed by a lid sealed to the upper rim of the container, e.g. tray-like container · CPC title

• B65B9/04

  one or both webs being formed with pockets for the reception of the articles, or of the quantities of material · CPC title

• B65B7/162

  by feeding web material to securing means · CPC title