Press Brake Mold Clamp With Elastic Pipe for Even Split-Mold Clamping
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Solution Overview
Problem
Existing mold holder devices struggle to evenly clamp multiple split molds with a strong and consistent pushing force during the bending process in a press brake, as seen in prior art configurations that are either overly complex or lack sufficient clamping strength.
Innovation Solution
A mold holder device with a pivotally arranged mold clamp and a metal pipe member inserted into a long groove, where the pipe member is noncircular with a longitudinal slit, allowing for elastic deformation to supplementally push and fix the molds, ensuring even clamping across multiple molds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a plurality of cylindrical support members with disk springs are used to push multiple molds, then the pushing force is distributed, but the configuration becomes complicated and it is difficult to evenly push the molds with strong force
Solution Approach 1:
The mold clamp is divided into multiple independent clamp units, each capable of clamping individual molds. This segmentation allows each unit to independently apply clamping force to its respective mold while maintaining overall system simplicity, avoiding the complexity of multiple distributed support members with springs
Solution Approach 2:
Multiple clamp units are merged into a single integrated mold clamp structure that operates as one component. This merging provides strong overall clamping force while maintaining even distribution across multiple molds, eliminating the need for separate support members and springs for each position
2Device complexity
If an elastic string is used to push upper molds, then the structure is simple, but it is difficult to strongly and evenly push multiple upper molds
Solution Approach 1:
The material parameter is changed from elastic string (low stiffness) to elastic pipe member (high stiffness). This parameter change maintains the simple structural concept of a single continuous element while dramatically increasing the pushing force capability, enabling strong and even clamping of multiple molds
3Area of stationary object
If split molds are arranged in a contiguous state in a single mold holder device, then space is utilized efficiently, but it is difficult to fix them with equal clamping force
Solution Approach 1:
The mold clamp is designed as a pivotal (rotatable) structure that can dynamically adjust its clamping posture. This dynamic capability allows the clamp to adapt to the contiguous arrangement of multiple split molds, ensuring equal clamping force distribution across all molds while maintaining efficient space utilization in the holder device
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
The device effectively and evenly clamps multiple split molds with a strong pushing force, utilizing the elastic deformation of the pipe member to ensure consistent clamping, even when molds are split, thereby improving the clamping efficiency and stability.
Implementation Method 1
an elastic deformation of the pipe member is used to supplementarily push and fix the mold with respect to the mold contacting surface
Data Source
AI summary
A mold holder device in a press brake includes a mold clamp that clamps a mold with respect to a mold contacting surface provided for a holder body of the mold holder device. The mold clamp is pivotally arranged on the holder body. A long groove is formed in a mold clamping surface with which the mold clamp clamps the mold with respect to the mold contacting surface. The long groove is in parallel with a pivot axis of the mold clamp. A metal pipe member has a longitudinal slit and is inserted in a rotation restricted state into the long groove. A part of an outer peripheral surface of the pipe member is protruded toward the mold contacting surface.