Pressure Granulation Machine Roll Speed Differential Suction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional pressure granulation machines face challenges in producing burr-free products, especially for small sizes, and require complex mechanisms for extruding products, leading to increased costs and reduced cleanliness.
Innovation Solution
A pressure granulation machine design featuring a pair of rotating rolls where one roll has slower surface speed than the other, with suction devices to remove products from concavities without the need for extrusion mechanisms, ensuring burr-free production and improved cleanliness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mechanism for extruding products is used to take out products from concavities, then products can be removed from the machine, but the structure becomes complex, cost increases, and cleanliness deteriorates due to material adherence in interstices
Solution Approach 1:
The patent extracts the harmful function of the extrusion mechanism by completely removing it from the system. Instead of using a mechanical extrusion device to remove products, the invention relies on the natural adhesion of material to the faster-rotating roll surface, which automatically extracts products from the concavities without requiring additional mechanical components.
Solution Approach 2:
The faster-rotating roll surface serves itself by using its own rotational speed advantage to automatically adhere and extract products from the concavities. The system uses the speed differential between rolls as a self-sufficient mechanism for product removal, eliminating the need for external extrusion devices.
2Ease of operation
If a mechanism for extruding products is used, then products can be taken out from concavities, but the number of members increases leading to higher machine cost
Solution Approach 1:
The patent extracts the harmful function of the extrusion mechanism by completely removing it from the system. Instead of using a mechanical extrusion device to remove products, the invention relies on the natural adhesion of material to the faster-rotating roll surface, which automatically extracts products from the concavities without requiring additional mechanical components.
Solution Approach 2:
The faster-rotating roll surface serves itself by using its own rotational speed advantage to automatically adhere and extract products from the concavities. The system uses the speed differential between rolls as a self-sufficient mechanism for product removal, eliminating the need for external extrusion devices.
3Ease of operation
If a mechanism for extruding products is used, then products can be removed from the machine, but the lack of cleanliness worsens due to powdery material adhering to interstices
Solution Approach 1:
The patent extracts the harmful function of the extrusion mechanism by completely removing it from the system. Instead of using a mechanical extrusion device to remove products, the invention relies on the natural adhesion of material to the faster-rotating roll surface, which automatically extracts products from the concavities without requiring additional mechanical components.
Solution Approach 2:
The faster-rotating roll surface serves itself by using its own rotational speed advantage to automatically adhere and extract products from the concavities. The system uses the speed differential between rolls as a self-sufficient mechanism for product removal, eliminating the need for external extrusion devices.
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 machine effectively produces burr-free products by adhering material not filling concavities to the faster roll's surface, allowing for simple product retrieval and maintaining high cleanliness by eliminating interstitial material adherence.
Implementation Method 1
a first suctioning device that suctions the molded products to rip off the molded products from the molding concavities
Implementation Method 2
a second pressing roll that rotates faster than the first pressing roll does
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
To provide a pressure granulation machine that is not equipped with a mechanism for extruding products, that has a simple structure to reclaim products, and that has a high degree of cleanliness. The pressure granulation machine 1 manufactures molded products 120 by granulating material 110 by compressing it by means of a pair of pressing rolls, which rotate. It comprises a first pressing roll 10 of the pair of the pressing rolls, on the outer surface 16 of which concavities 12 for molding are formed, a second pressing roll 20 of the pair of the pressing rolls that rotates faster than the first pressing roll does, and a first suctioning device 50 that suctions the molded products that have been formed by granulating the material by pressing it in the concavities for molding to rip off the molded products from the concavities for molding.