Hot-Pressing Machine Independent Punch Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hot-pressing machines face significant downtime due to laborious and time-consuming processes for changing equipment, especially when producing small lots, leading to increased production costs and inefficiencies in metal article manufacturing, particularly in brass or aluminum.
Innovation Solution
A hot-pressing machine system with a translatable equipment support bench and hydraulic actuators allows for simultaneous transfer of equipment between active and standby stations, enabling independent control of punch movements and optimized die replacement, pre-heating, and testing, reducing the need for synchronized vertical movements and minimizing material waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If simultaneous vertical movement of die-holder slide and punch-holder carriages is used, then equipment structure is simplified, but manufacturing precision deteriorates due to non-uniform material flow and burr formation
Solution Approach 1:
The patent divides the pressing operation into two independent stages: first the die-holder slide moves vertically to close the die, then the punch-holder carriages move independently to press the material. This segmentation allows each component to be controlled separately, enabling uniform material flow into the die cavity while maintaining equipment structural simplicity.
Solution Approach 2:
The patent introduces independent control mechanisms for the punch-holder carriages that allow them to move dynamically after the die closure, rather than being rigidly coupled to the die-holder slide movement. This dynamic control enables precise adjustment of punch movement timing and speed to achieve uniform material distribution.
2Adaptability or versatility
If frequent die changes are performed for small production lots, then adaptability is improved, but productivity deteriorates due to long downtime for equipment replacement
Solution Approach 1:
The patent implements preliminary preparation of replacement dies and equipment components in advance. The die-holder slide and punch-holder carriages can be pre-positioned and prepared outside the pressing cycle, so that when a die change is needed, the replacement can be quickly installed without interrupting the pressing operation, thereby minimizing downtime.
Solution Approach 2:
The patent replaces manual mechanical operations for die changing with automated control systems. The independent control of punch-holder carriages and die-holder slide allows for automated positioning and changing procedures, reducing the time and labor required for equipment replacement while maintaining flexibility for small production lots.
3Manufacturing precision
If excess material is used to compensate for non-uniform die filling, then manufacturing precision is maintained, but loss of substance increases significantly
Solution Approach 1:
The patent implements control mechanisms that monitor the material flow and pressing process in real-time. Based on feedback from sensors and process data, the system automatically adjusts the punch movement and die closure parameters to achieve uniform material distribution, eliminating the need to add excess material and thereby reducing waste.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution significantly reduces downtime, optimizes material flow, and enhances production efficiency by allowing for independent control of punch movements and efficient die management, resulting in reduced material oversizing and improved product quality with minimized distortion and material savings.
Implementation Method 1
an operating actuator (16) able to move said slide (12) along a vertical axis (X)
Implementation Method 2
pre-heating the die etc.
Implementation Method 3
pressing of the articles starting from billets of metal in a semi-solid state, in other words at a temperature such as to permit plastic deformation of the same
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a machine for the hot- pressing of metal articles, especially in brass or aluminium, comprising a casing (10) bearing a die-holder slide (12) and an operating actuator (16) able to move said slide along a vertical axis between a raised inactive position and a lowered position in which the die is closed. At the base of the casing there is a support bench (18) of the equipment (20,21) needed to perform pressing of the articles, where said equipment comprises punches for making holes in the article to be pressed. The machine also comprises punch control actuators (40, 50) for moving said punches. Such punch control actuators (40, 50) can be operated independently of the movement of the die-holder slide (12) and preferably, independently of each other.