Reversible Press Brake Stopper Assembly for Adjustable Sheet Positioning
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Solution Overview
Problem
Conventional containers and trowels are not easily adaptable for reuse and are limited in their ability to shape and size adjustments, while portable press brakes lack efficient accessories for improved productivity and accuracy in sheet metal shaping.
Innovation Solution
An adjustable stopper assembly for press brakes, a modular container with interchangeable liners, and an adjustable trowel with a flexible blade and locking mechanism are introduced, allowing for customizable use and improved adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stoppers are used in press brakes, then the stoppers can be fixed at pre-set locations, but they cannot be easily relocated or adjusted along the full length of the brake
Solution Approach 1:
The stopper assembly is designed with dynamic adjustability, allowing the stopper to be moved to different positions along the press brake. The connector portion can be repositioned along the rear portion of the press brake, and the stopper distance can be adjusted by modifying the length of the connector portion, transforming a static stopper into a dynamic, adaptable component.
Solution Approach 2:
The stopper assembly is divided into separate functional components: an upper frame, an L-bracket, a connector portion, and a stopping member. This segmentation allows each component to be independently adjusted or repositioned, enabling flexible relocation of the stopper along the press brake without requiring complete disassembly.
2Object-affected harmful factors
If existing stoppers are used, then they can restrain material depth, but they interfere with the top of the press brake extrusion and create bumps, marks or indentations on the bar
Solution Approach 1:
The connector portion acts as an intermediary element between the press brake structure and the stopping member. It provides a dedicated mounting interface that distributes the stopping force away from the top of the press brake extrusion, preventing direct contact that would cause bumps, marks, or indentations while maintaining effective material depth control.
3Ease of operation
If thumb screws are used to secure stoppers, then they can be easily installed, but they create bumps, marks or indentations on the aluminum piece holding the stopper over time
Solution Approach 1:
The connector portion is designed as a replaceable component that absorbs wear and damage. Instead of the thumb screws directly damaging the expensive aluminum press brake structure, the connector portion serves as a sacrificial element that can be replaced without affecting the main press brake body, maintaining ease of installation while protecting the equipment surface.
4Productivity
If conventional press brakes are used without adjustable accessories, then the basic bending function is available, but productivity and accuracy are limited due to lack of measuring and positioning accessories
Solution Approach 1:
The adjustable stopper assembly serves multiple functions: it acts as a positioning reference for material placement, a depth control mechanism for consistent bends, and a reusable accessory that can be applied to various press brake configurations. This multi-functionality improves productivity without requiring multiple separate specialized accessories.
Data Source
AI summary
The present disclosure provides for a reversible and adjustable stopper assembly comprised of an upper frame, L-bracket, connector portion and stopping member. The stopper can be configured to be secured to at least two main types of press brakes. The stopping portion of the stopper is also reversible, allowing for less sheet metal to be inserted into the press brake, if desired. The stopper assembly can be slid in a horizontal manner, relative to the press brake to preserve the measurement of the sheet metal from one end of the press brake to the other.