US 12,202,639 B2Granted

Heat-seal device

AssigneesKabushiki Kaisha Yakult Honsha, Shikoku Kakoki Co., Ltd.

InventorsKunio Komatsu, Masato Yamada, Takanori Yabuuchi

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Abstract

The purpose of the present invention is to provide a heat-sealing device capable of preventing problems associated with cap sealing performance and/or sensation of the cap being open due to an inappropriate cap temperature. For this purpose, this heat-sealing device (10), which is used in a manufacturing apparatus (100) for manufacturing a product for which an opening part (1A: mouth part) of a container (1) is sealed with a cap (2), is provided with: a pressing plate (5) which is disposed on a path along which the containers (1) move; a heating unit (3) and sealing heads (4) for pressing the caps (2) sealing the container (1), the heating unit (3) and sealing heads (4) being arranged on the pressing plate (5); a temperature measurement device (7) for measuring the temperatures of the sealing heads (4); and a control device (8: control unit) for transmitting control signals to a container conveyance drive source (for example, inverter) in accordance with the measurement results from the temperature measurement device (7).

Claims9

Dependent claims

A heat-seal device used in a manufacturing apparatus manufacturing a product in which an opening portion of a container is sealed with a cap, characterized in that

a pressurizing plate is provided in a path on which the container moves,
a heating of the cap is carried out by an induction heating,
a seal head, which presses the cap covering the container, and a heating portion which heats said cap by the induction heating, are disposed on the pressurizing plate,
a temperature measuring device, which measures a temperature of the seal head, and a control device, which transmits a control signal on the basis of a measurement result of the temperature measuring device to a container-conveyance drive source, are provided, and that
the control device has a function of adjusting a moving speed of the container in accordance with the temperature of the seal head, a function of decelerating the moving speed in a case that the temperature of the seal head is low, and a function of accelerating the moving speed in a case that the temperature of the seal head is high;
and a function of adjusting the heating time of the cap.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/910,769Filed 11 Mar 2021
Priority: JP 2020-4500516 Mar 2020
Published: US 2023/0117653 A120 Apr 2023
Granted: 21 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification29 codes

B65B 7/2878
Securing closures on containers: by heat-sealing
B29C 65/46
Joining a heated non plastics element to a plastics element: heated by induction
B29C 65/4815
Non-reactive adhesives, e.g. physically hardening adhesives: hot melt adhesives, e.g. thermoplastic adhesives
B29C 65/7885
Said parts to be joined moving in a circular path: rotary turret joining machines, i.e. having several joining tools moving around an axis