Adhesive Block Melting Hopper With Shutter-Controlled Feed

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Solution Overview

Problem

Existing adhesive material melting devices in wood machining systems suffer from issues such as unwanted melting of stacked blocks, difficulty in extracting and replacing blocks, interruptions in the flow of glue, waste of material, and bulky structure, which complicates maintenance and adaptation to production changes.

Innovation Solution

A device with a feed hopper containing stacked adhesive material, a melting chamber, and shutter elements controlled by actuators to regulate the flow, allowing for controlled feeding and efficient use of two separate channels for different adhesive materials, along with observation windows and a movable piston for precise melting control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If blocks are stacked one above the other in the hopper, then the device structure is simplified and space is reduced, but unwanted melting of overlying blocks occurs causing solid blocks of glue to form between them

Engineering Contradiction:
Improvehopper volumeVSAvoidunwanted melting of blocks
Core Design Contradiction:
Volume of moving objectVSObject-generated harmful factors

Solution Approach 1:

The hopper is divided into multiple compartments (first hopper, second hopper, third hopper) that are separated from each other. Each compartment can hold blocks independently, preventing heat transfer between stacked blocks. This segmentation allows the hopper to maintain a compact volume while avoiding the harmful effect of unwanted melting between blocks.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If blocks are positioned one above the other without separating mechanisms, then the device structure is simplified, but interrupting the flow of glue becomes problematic leading to material waste

Engineering Contradiction:
Improvefeeding mechanism complexityVSAvoidadhesive material waste
Core Design Contradiction:
Device complexityVSLoss of substance

Solution Approach 1:

The invention introduces movable partition walls that can dynamically adjust to control the flow of blocks from one compartment to another. These partition walls can be moved to either allow or prevent block flow, enabling smooth interruption and resumption of glue flow without wasting material. The dynamic adjustment mechanism maintains system simplicity while preventing material waste.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates sensors that detect the presence and position of blocks, providing feedback to the control system. This feedback enables automatic control of the movable partition walls to maintain continuous block flow or smoothly interrupt it when needed, preventing material waste while keeping the feeding mechanism relatively simple.

Inventive Principle:
Principle #23Feedback

3Device complexity

If the hopper is configured to contain a single stack of blocks for long term, then the device structure is simplified, but the overall dimensions become bulky

Engineering Contradiction:
Improvehopper structure complexityVSAvoidoverall device dimensions
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

Instead of a single large hopper containing one stack of blocks, the invention divides the storage into multiple smaller compartments (first, second, and third hoppers) that can be arranged in a compact configuration. Each compartment holds a smaller stack of blocks, and the overall arrangement reduces the device's footprint while maintaining long-term storage capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from a single vertical stack arrangement to a multi-level, multi-compartment configuration that utilizes three-dimensional space more efficiently. By distributing blocks across multiple compartments arranged in different spatial dimensions, the device achieves compact overall dimensions while maintaining the ability to store large quantities of blocks for long-term operation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Device complexity

If manual emptying of the hopper is required to change blocks, then the device structure is simplified, but maintenance and adaptation to production changes become difficult

Engineering Contradiction:
Improveblock replacement mechanism complexityVSAvoidproduction process adaptability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The invention introduces movable partition walls that can be dynamically adjusted to facilitate block replacement and different production configurations. These partition walls can be moved to isolate specific compartments or allow free flow between them, enabling quick adaptation to production changes without manual emptying of the entire hopper. This dynamic mechanism maintains structural simplicity while significantly improving adaptability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

By dividing the hopper into multiple independent compartments, the invention allows selective access and replacement of blocks in specific compartments without disturbing others. This segmentation enables partial maintenance operations and quick adaptation to production changes, reducing the need for complete manual emptying while keeping the overall structure relatively simple.

Inventive Principle:
Principle #1Segmentation

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 solution prevents unwanted melting, improves fluidity, simplifies maintenance, reduces waste, and optimizes space while enhancing production flexibility and efficiency by allowing seamless adaptation to production demands.

Implementation Method 1

The melting chamber is suitable for receiving the blocks by gravity

Methodology Applied
Scientific EffectGravity: Gravitation

Implementation Method 2

having a lower opening, provided with a melting grille, configured for melting the blocks

Methodology Applied
Scientific EffectMelting: Melting

Data Source

PatentEP4653098A1Device configured to melt elements made of adhesive material
Publication Date: 2025.11.26 SCM GRP
  • EP4653098A1 patent drawingFigure 1
  • EP4653098A1 patent drawingFigure 2A~2B
  • EP4653098A1 patent drawingFigure 3A~3B

AI summary

Described is a device (1) configured for melting elements (P) made of adhesive material, comprising a feed hopper (100) configured for feeding a succession of elements (P) made of adhesive material and a melting chamber (200), positioned below the hopper (100). The hopper (100) has at least one feed channel (101, 102), extending substantially along a vertical direction and suitable for containing a plurality of elements (P), mutually stacked. The device (1) comprises at least one shutter element (111, 112) positioned in the at least one feed channel (101, 102), and configured to be selectively switchable between a closed configuration wherein the at least one shutter element (111, 112) stops the feeding by falling of the succession of elements (P), and an open configuration, wherein the at least one shutter element (111, 112) allows the feeding by falling of the succession of elements (P) from the at least one feed channel (101, 102) to the melting chamber (200).