Peristaltic Pump Hose Threading Mechanism
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Solution Overview
Problem
The introduction of a hose into peristaltic pumps is cumbersome and time-consuming, requiring manual pivoting of flaps and turning of the pump, which demands operator skill and takes significant time.
Innovation Solution
A hose pump with an integrated threading device that automatically inserts the hose between the squeezing elements and counter bearing, utilizing a worm spindle driven by the pump's motor, along with guide rollers to pull the hose into place, allowing for easy and quick hose insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual pivoting of flaps and turning of the pump is used to insert the hose, then the hose can be inserted into the peristaltic pump, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The threading device is pre-positioned and automatically activated when the pump starts. The worm spindle and guide rollers are ready in advance to guide and pull the hose into place, eliminating the need for manual preparatory steps like pivoting flaps or turning the pump.
Solution Approach 2:
The pump performs the hose insertion operation automatically through its own drive motor powering the threading device. The system serves itself by using its operational motion to thread the hose between the squeezing rollers and counter bearing without external manual intervention.
2Ease of operation
If manual pivoting and positioning are required for hose insertion, then the hose can be threaded into the pump, but operator skill is demanded
Solution Approach 1:
The threading device acts as an intermediary mechanism between the operator's simple action of inserting the hose loop and the complex requirement of threading it between moving parts. The worm spindle and guide rollers mediate the transformation of a simple insertion motion into proper hose positioning.
Solution Approach 2:
The manual mechanical operations of pivoting flaps and turning the pump are replaced by an automated mechanical threading device driven by the pump's own motor. This substitution eliminates the need for skilled manual manipulation while maintaining reliable hose insertion.
3Productivity
If the pump is turned manually into a suitable position for threading, then the hose can be inserted, but the process becomes time-consuming
Solution Approach 1:
The hose threading operation is merged with the pump's startup sequence. The same drive motor that powers the pump also activates the threading device, combining two operations (pump startup and hose insertion) into one simultaneous action, thereby increasing productivity without additional operator effort.
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
Enables rapid and effortless hose insertion, reducing operator effort and time, as the hose is automatically guided and secured within the pump, ensuring smooth operation from the start.
Implementation Method 1
The threading device comprises a worm spindle arranged on a shaft. The shaft is rotatably mounted in a housing part of the peristaltic pump and is rotated by a spindle drive.
Implementation Method 2
a hose pump for conveying a medium guided in a hose, which comprises a plurality of squeezing rollers which press the hose against a counter bearing
Implementation Method 3
the pinch rollers located on the carrier disk rotate counterclockwise. The rotary movement of the carrier disk and the squeezing rollers is mediated by a drive motor and a gearbox
Data Source
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AI summary
The invention relates to a peristaltic pump (1) for conveying a medium conducted in a hose, having a plurality of squeezing elements (3) which press the hose, so as to squeeze the hose, against a counter bearing (4) and thereby convey the medium in the hose onward in the conveying direction. To permit a simpler and faster insertion of a hose in a peristaltic pump of said type, it is provided according to the invention that the peristaltic pump has a threading device for inserting the hose between the squeezing elements (3) and the counter bearing (4).