Chub Pack Dispensing System with Piercing Nozzle and Lock Block
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing powered caulking guns are designed to work with caulk tubes, which are more expensive to manufacture than chub packs and often have complex mechanisms that lead to unwanted material dispensing.
Innovation Solution
A material dispensing system that uses a housing to receive a chub pack, featuring a motor and transmission assembly with planetary gears, a lock block, and a gearbox to control the piston rod's movement, allowing controlled dispensing from a chub pack using interchangeable nozzle tips with piercing projections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a caulk tube with sliding piston is used, then controlled material dispensing is achieved, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive reusable caulk tubes with disposable chub packs that are cheaper to manufacture. The chub pack includes a flexible packaging material with a one-way valve that allows material to be pushed out but prevents it from flowing back, eliminating the need for complex sliding pistons and making the packaging significantly cheaper to produce.
Solution Approach 2:
The patent extracts the piston function from the packaging itself and places it in the dispensing tool. The chub pack only needs to provide flexible containment and a one-way valve, while the dispensing tool contains the motor-driven piston mechanism that pushes material through the packaging.
2Ease of operation
If a complex mechanism is used in powered caulking guns, then material dispensing capability is improved, but unwanted material dispensing occurs
Solution Approach 1:
The patent converts the potential harm of material flow back into the chub pack into a beneficial one-way valve mechanism. When the chub pack is compressed, the valve opens to allow material flow; when released, the valve closes to prevent material from flowing back, eliminating unwanted dispensing without complex mechanical mechanisms.
3Ease of manufacture
If a chub pack with one-way valve is used, then manufacturing cost is reduced, but material flow control becomes more difficult
Solution Approach 1:
The patent introduces a one-way valve as an intermediary element between the flexible packaging material and the dispensing nozzle. This simple passive component automatically controls material flow based on pressure differential, opening when pushed and closing when released, providing flow control without requiring complex active mechanisms.
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 efficient and controlled dispensing of materials like caulk, adhesive, and sealant from chub packs, reducing manufacturing costs and preventing unwanted material flow.
Implementation Method 1
a motor and transmission assembly with planetary gears, a lock block, and a gearbox to control the piston rod's movement
Implementation Method 2
transmission assembly with planetary gears, a lock block, and a gearbox to control the piston rod's movement
Implementation Method 3
interchangeable nozzle tips with piercing projections
Data Source
Figure 1~2
Figure 3
Figure 4~6
AI summary
The present technology is a material dispensing system for controllably dispensing material from a packaging such as a chub pack. The system can include a housing capable of receiving the packaging, at least one nozzle tip including at least one piercing projection capable of piercing the packaging, a piston rod, a motor, and a transmission assembly for converting torque from the motor to a translation output of the piston rod. A ring gear can be operably associated with a planetary gear of the transmission, with a lock block slidingly engageable with the ring gear to prevent it from rotating or to allow the ring gear to rotate freely. A trigger is utilized to control the motor and to operate the lock block.