Stand-Up Pouch Machine With Continuous Film Feed

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Solution Overview

Problem

Existing machines for producing stand up pouches subject the film to high tensile forces due to intermittent movement, leading to film stretch and deformation, and cause wear on machine components.

Innovation Solution

A machine with a continuous film feed mechanism and synchronized seal bars, using a servomotor to maintain constant speed through punching, folding, and welding stations, with a high-speed punch and print mark sensors for precise hole positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If intermittent film feed is used to allow time for sealing and punching operations, then the sealing and punching functions can be performed, but the film is subjected to high tensile forces causing film stretch and deformation

Engineering Contradiction:

Improvesealing qualityVSAvoidfilm stability

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent implements continuous film feed through the processing stations, eliminating the stop-start motion of intermittent feed. The film moves continuously at constant speed while sealing and punching operations are performed, preventing tensile forces and film deformation while maintaining reliable sealing quality.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The patent replaces the mechanical intermittent feed system with a continuous motion system controlled by synchronized actuators. The sealing and punching stations use rapidly actuating mechanisms that can perform their functions during continuous film movement, substituting the need for mechanical stopping and starting.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Productivity

If intermittent film feed with frequent acceleration and braking is used, then sealing and punching operations can be completed, but wear on machine components increases

Engineering Contradiction:

Improveproduction speedVSAvoidcomponent durability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The film feed mechanism operates continuously without acceleration and braking cycles. The constant velocity motion eliminates the mechanical stress and wear associated with frequent speed changes, while sealing and punching are achieved through rapidly actuating station mechanisms that operate during continuous film movement.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

The patent uses dynamically actuated sealing and punching stations that can rapidly engage and disengage during continuous film movement. The stations are positioned to perform their functions at specific points in the continuous motion cycle, allowing high-speed production without the need to slow down or stop the film feed.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12420513B2Machine for production of stand up pouches

Publication Date: 2025.09.23 POUCH PAC INNOVATIONS LLC

AI summary

A machine for the production of a stand up pouch from a web includes a film feed which moves the web at continuously at a constant speed through a punching station, a folding station, and a welding station. The welding station includes a pair of seal bars which are driven by a server motor at a speed equal to a speed of the web during the welding. The punch station includes at least one electromagnetic punch.