Rubber Cutting Device with Adjustable Knife and Lifting Beam
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Solution Overview
Problem
Existing cutting devices for rubber components in green belts are complex in construction due to the need for rollers of different lengths and can cause transport stagnation, with inadequate adjustment and friction for efficient cutting.
Innovation Solution
A cutting device with a transverse lifting beam and adjustable knife angle, combined with magnet rollers and pressure rollers, allows for simple and efficient cutting of rubber components by enabling adjustable knife angles and maintaining component position during cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an inclined undercut ledge with rollers of different lengths is used, then cutting can be performed, but the construction becomes complex
Solution Approach 1:
The patent applies homogeneity by using rollers of identical length throughout the roller conveyor system, eliminating the need for different-length rollers that would be required in an inclined undercut ledge design. This standardization simplifies the overall construction while maintaining the cutting function through the transverse lifting beam approach.
Solution Approach 2:
Instead of using an inclined undercut ledge that requires complex roller arrangements, the patent inverts the approach by using a transverse lifting beam that moves vertically to perform the cutting action. This reversal of the conventional cutting mechanism eliminates the need for inclined rollers and different-length components.
2Device complexity
If a lifting beam is used for cutting, then construction is simplified, but transport stagnation may occur if the beam forms a threshold
Solution Approach 1:
The lifting beam is designed to be vertically movable between a retracted position (below the roller conveyor plane) and a working position (above the roller conveyor plane). This dynamic positioning allows the beam to clear the conveyor path during transport, preventing stagnation, while still enabling cutting when positioned above the rollers.
Solution Approach 2:
The lifting beam is retracted below the roller conveyor plane before the rubber component arrives, ensuring the transport path is clear. This preliminary retraction action prevents any potential threshold formation that could cause transport stagnation before the cutting operation commences.
3Device complexity
If the knife is fixed at a constant angle, then the construction is simpler, but it cannot accommodate rubber components with various widths
Solution Approach 1:
The knife assembly incorporates an adjustable angle mechanism that allows the knife to be tilted at different angles relative to the direction of conveyance (approximately 18° to approximately 34°). This dynamic adjustability enables the cutting device to accommodate rubber components of various widths while maintaining a relatively simple overall construction.
4Manufacturing precision
If pressure rollers extend along the entire width of the roller conveyor, then component positioning is improved, but the lifting beam cannot effectively lift the component for cutting
Solution Approach 1:
The pressure rollers are strategically positioned only at the longitudinal ends of the roller conveyor rather than extending along the entire width. This localized positioning provides sufficient component stabilization at the entry and exit points while leaving the central region accessible to the lifting beam for effective component elevation and cutting 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
The solution simplifies the construction of the cutting device, reduces transport stagnation, and enhances cutting efficiency by allowing adjustable knife angles and sufficient friction, enabling precise cutting of rubber components with various widths.
Implementation Method 1
it is realised in an embodiment of a cutting device according to the invention in that the conveyor rollers comprise magnet rollers
Data Source
Figure 1~2A
Figure 2B~3D
Figure 2BA~3DA
AI summary
Cutting device for cutting a rubber component (9) for a green belt. The cutting device comprises a roller conveyor (1) for conveying the rubber component in a direction of conveyance. The roller conveyor comprises a number of conveyor rollers (2) which are substantially parallel to and spaced apart from each other. The cutting device comprises a knife (4) for cutting the rubber component at an angle with the direction of conveyance, wherein the cutting device is provided with a lifting beam (8) that extends transverse to the direction of conveyance between two conveyor rollers. The lifting beam (8) is vertically movable for lifting the rubber component. The knife (4) is arranged so as to be displaceable along a guide rail with respect to the roller conveyor, wherein the angle that the knife forms with the direction of conveyance is adjustable in a range of approximately 18- to approximately 34.