Oscillating Grate Carriage for Block Molds
Solution Overview
Problem
Existing block-making machines face issues with uneven filling of block molds due to varying material pressure, leading to sloping filling curves and reduced block density, especially in high or narrow molds, and existing vibrating grates have limited adjustability and increased wear on guides.
Innovation Solution
A vibrating grate carriage system with horizontally guided sliding guides, adjustable articulations, and a hydraulic drive that converts rotational movement into horizontal motion, allowing for customizable horizontal stroke and force components, reducing vertical force on guides and enabling even material distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional vibrating grate with articulated connections is used, then the grate can move back and forth to distribute material, but the horizontal lifting component cannot be adjusted and wear on guides increases
Solution Approach 1:
The patent applies the dynamics principle by making the horizontal stroke of the vibrating grate adjustable through multiple articulated connections that can be repositioned. The linkage system allows the horizontal lifting component to be dynamically adapted to different product dimensions and material densities, while the sliding guides constrain motion to reduce vertical forces and wear.
Solution Approach 2:
The patent implements parameter changes by allowing the horizontal stroke and force components to be modified through repositioning the articulated connections. This enables the system to adapt to different concrete densities and product specifications, optimizing material distribution while controlling guide wear through parameter adjustment rather than fixed design.
2Ease of operation
If the vibrating grate uses multiple articulated connections, then motion transmission is achieved, but the system has excessive degrees of freedom causing vertical force components
Solution Approach 1:
The patent resolves the force issue by dynamically constraining the system through sliding guides that eliminate excessive degrees of freedom. The guides allow horizontal motion while preventing vertical movement, thereby transmitting motion efficiently through the articulated connections while minimizing harmful vertical force components that would increase wear.
3Productivity
If the filling car uses a standard filling process, then the filling process is simple, but the mold cavities at the back are filled to a lesser extent creating sloping filling curves
Solution Approach 1:
The patent applies mechanical vibration through the vibrating grate that moves back and forth horizontally during the filling process. This vibration actively distributes the raw material evenly across the mold cavities, including those at the back, preventing sloping filling curves while maintaining high filling speed through the continuous vibratory motion.
Solution Approach 2:
The patent uses dynamic motion of the vibrating grate with adjustable horizontal stroke to adapt to different filling requirements. The grate's back-and-forth movement creates dynamic material distribution that ensures uniform filling across all mold cavities, resolving the contradiction between fast filling and filling uniformity.
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 ensures even filling of block molds with reduced energy consumption and extended guide wear life, allowing for efficient operation across various concrete mixtures and block shapes without significant effort in adjustments.
Implementation Method 1
a hydraulic drive that converts rotational movement into horizontal motion
Implementation Method 2
the vibrating grate carriage is guided horizontally in sliding guides. This design has the advantage that a rotary movement of the drive is translated into a horizontal movement of the vibrating grate, since the system is essentially deprived of a degree of freedom due to the static mounting of the articulated rocker and the other articulated connections. This limits the vertical force component of the shaker grate slide, which has a positive effect on the service life of the guides.
Data Source
Figure 1~2
AI summary
The present invention relates to an oscillating grate (10) for a hopper (9) of a block making machine (1), wherein the oscillating grate (10) comprises an oscillating grate carriage (11) having an oscillating rod linkage (12), and the oscillating grate carriage (11) is connected to the drive (13) via a connecting rod assembly (14). The connecting rod assembly (14) comprises a connection bar (15), a joint rocker (16) and a drive rocker (17) connected to the drive (13). The connection bar (15) is attached to the oscillating grate carriage (11) via a first joint connection (18). Further, the connection bar (15) is attached to the joint rocker (16) via a second joint connection (19), wherein the joint rocker (16) is attached to a static bearing (21) via a third joint connection (16). The drive rocker (17) is attached to the joint rocker (16) via a fourth joint connection (22).