Integrated Hold-Down Cylinder Press for Reduced Overall Height
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Solution Overview
Problem
Existing presses for deburring and similar processes have a large overall height due to the arrangement of the hold-down cylinder below the press cylinder, requiring significant structural measures for setup and limiting compactness.
Innovation Solution
The hold-down cylinder is integrated into the press piston rod, allowing it to pass through a passage in the flange plate, enabling easy replacement and reducing the overall height by integrating it into the piston rod, using a plunger cylinder design with a single-acting mechanism and rapid adjustment via hydraulic or electromechanical actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hold-down cylinder is arranged below the press cylinder, then the press can perform deburring operations, but the overall height becomes large (up to 8 m)
Solution Approach 1:
The hold-down cylinder is integrated into the press piston rod, merging two separate components (press cylinder and hold-down cylinder) into a single unified structure. This eliminates the need for separate spatial arrangement below the press cylinder, thereby reducing the overall height while maintaining both pressing and hold-down functions
Solution Approach 2:
The hold-down cylinder is nested within the press piston rod, with the hold-down cylinder housing inserted into a blind opening in the piston rod and the hold-down cylinder passing through a passage in the flange plate. This nested arrangement allows the hold-down function to be contained within the press structure, significantly reducing the vertical space requirement
2Length of stationary object
If the hold-down cylinder is integrated into the press piston rod, then the overall height is reduced, but the hold-down cylinder needs to be easily replaceable
Solution Approach 1:
The integration design separates the hold-down cylinder into a distinct, modular component that can be independently accessed and replaced. The hold-down cylinder housing is inserted into a blind opening in the piston rod, and the cylinder itself passes through a passage in the flange plate, allowing it to be removed and replaced without dismantling the entire press piston rod assembly
Solution Approach 2:
The hold-down cylinder is designed as a extractable component that can be removed from the press piston rod. The passage opening in the flange plate and the blind opening in the piston rod allow the hold-down cylinder to be taken out for replacement or maintenance while leaving the press piston rod intact, facilitating easy repair operations
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 design achieves a reduction in overall height by up to 20% compared to conventional presses, facilitating easier setup and faster machining cycles with reduced structural requirements.
Implementation Method 1
A press cylinder extends from this plate and is connected to a press plate, usually called a ram, which is guided along columns and adjusted towards the tabletop to perform the pressing operation
Implementation Method 2
a hold-down device may be provided, which is typically arranged below and connected to a piston rod of the press cylinder
Implementation Method 3
Because the hold-down device, which is usually a hydraulic cylinder, runs below the press piston rod
Data Source
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AI summary
The invention relates to a press (10) comprising at least one press device with a press cylinder (24) having a press piston rod (22) and a hold-down cylinder (32) with a hold-down piston rod (40). The hold-down cylinder (32) is integrated into the press piston rod (22).