Independent Pump Control for Marking Line Base Layer and Raised Elements
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Solution Overview
Problem
Existing marking line production methods and devices face challenges in creating precisely defined and reproducible marking lines due to shared pump systems, which limit independent control over the base layer and raised elements, making it difficult to maintain desired line appearances, especially with thermoplastic materials that experience viscosity changes.
Innovation Solution
The method involves individually pumping each marking material stream with variable power to control their sizes independently, using separate pumps and pump drives for each stream, allowing for independent control of the base layer and raised elements through distinct outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a shared pump system is used to convey marking material to multiple outlets, then the device complexity is reduced, but the manufacturing precision and control independence deteriorate
Solution Approach 1:
The patent divides the single shared pump system into multiple independent pump units, with each pump dedicated to conveying marking material to a specific outlet. This segmentation allows independent control of each marking material stream, enabling precise control over the base layer thickness and raised element dimensions without interference from other outlets, thereby resolving the contradiction between system simplicity and manufacturing precision
2Ease of operation
If the pump delivery rate is adjusted to control material flow, then the material flow can be influenced, but the reliability of consistent material flow deteriorates
Solution Approach 1:
By assigning separate pumps to each outlet, the system allows independent adjustment of each pump's delivery rate without affecting other outlets. This eliminates the coupled behavior where adjusting one outlet's flow influences another, ensuring reliable and consistent material flow to each outlet while maintaining ease of operation through individual control
Solution Approach 2:
The patent implements variable pump speed control for each pump unit, allowing dynamic adjustment of delivery rates to match different material flow requirements. This dynamic control enables the system to adapt to changing conditions while maintaining consistent and reliable material flow to each outlet, resolving the contradiction between operational flexibility and flow consistency
3Ease of operation
If the outlet opening cross section is changed to control material flow, then the material flow can be adjusted without changing pump speed, but the device complexity and control difficulty increase
Solution Approach 1:
The patent assigns separate pumps to each outlet, allowing material flow control through pump speed adjustment rather than outlet opening modification. This eliminates the need for complex outlet opening adjustment mechanisms while maintaining ease of operation through straightforward pump control, resolving the contradiction between operational simplicity and device complexity
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 approach enables the production of marking lines with high quality and reproducibility, simplifying the adjustment and maintenance of desired line appearances by allowing independent control over the base layer and raised elements.
Implementation Method 1
a pump (12.1, 12.2) with a delivery line (14.1, 14.2) to two material chambers (15.1, 15.2)
Implementation Method 2
a heating element (not shown) in the container (10)
Implementation Method 3
the material for the attached points is discharged under pressure from the container through two travel-dependent valves
Data Source
Figure 1~2
AI summary
The method involves delivering a marking material (2) for a base layer (31) as a marking material flow (21) from an outlet (16.1). The material for embossed elements (32) is partitioned into small portions from another marking material flow (22) and delivered from another outlet (16.2). Each material flow is conveyed independent of the other material flow at the outlets. Quantities of the material flows are controlled independent of each other. The material flows are individually pumped with a variable pump power for conveying. An independent claim is also included for a device for producing marking lines from pumpable marking material.