Integrated Glue Valve Nozzle Unit for Paper Bag Production
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Solution Overview
Problem
The existing devices for applying adhesive to paper or plastic webs are costly due to the need for prefabricated glue valves and extensive hole drilling in the nozzle unit, which increases production costs and maintenance requirements.
Innovation Solution
The integration of glue valves directly into the nozzle unit, eliminating the need for separate glue supply lines and reducing the number of holes, along with the use of an electromagnetic displacement drive and modular segmentation of the nozzle unit, allows for a more compact and cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prefabricated glue valves are arranged on the nozzle unit with separate glue supply lines, then the valve function is achieved, but the number of holes in the nozzle unit increases and production costs increase
Solution Approach 1:
The patent integrates the glue valve directly into the nozzle unit structure, merging the valve body with the nozzle unit housing. This eliminates the need for separate glue supply lines and multiple holes in the nozzle unit, reducing structural complexity while maintaining the valve's glue flow control function.
Solution Approach 2:
The nozzle unit is designed to serve multiple functions: it provides the glue chamber, contains the glue valves, and directs glue flow through integrated channels. This multi-functional design eliminates the need for separate components and reduces the overall number of holes required in the nozzle unit structure.
2Reliability
If prefabricated glue valves are arranged on the nozzle unit, then the valve function is achieved, but production costs increase
Solution Approach 1:
By combining the glue valve and nozzle unit into a single integrated component, the patent eliminates the need for separate prefabricated valves and multiple assembly steps. This integration reduces material costs, assembly costs, and the number of holes that need to be drilled, thereby lowering overall production costs.
Solution Approach 2:
The nozzle unit is divided into functional segments (glue chamber, valve areas, outlet openings) that can be manufactured as a single piece or in modular sections. This segmentation allows for simplified manufacturing processes while maintaining the complex valve functionality, reducing production costs compared to assembling multiple separate components.
3Quantity of substance
If separate glue supply lines are used to connect glue chamber to valves, then glue transport is achieved, but maintenance and cleaning costs increase
Solution Approach 1:
The glue supply lines are integrated directly into the nozzle unit structure, eliminating separate external tubing. This integration reduces the number of connection points and surfaces that require cleaning and maintenance, while still providing effective glue transport from the chamber to the outlet openings.
4Quantity of substance
If multiple holes are drilled in the nozzle unit for separate valves and supply lines, then glue delivery to valves is achieved, but the nozzle unit size increases
Solution Approach 1:
The glue delivery channels are integrated within the nozzle unit's internal structure rather than requiring external supply lines. This integration allows for more compact routing of glue flow paths, reducing the overall volume and size of the nozzle unit while maintaining effective glue delivery to all outlet openings.
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 solution significantly reduces production and maintenance costs, enhances the compactness of the nozzle unit, and allows for easier replacement of worn-out components, while maintaining efficient adhesive application.
Implementation Method 1
The plunger can be displaced by means of an electromagnetic displacement drive
Data Source
Figure 1~4
Figure 5~6
AI summary
The invention describes a device for applying adhesive to areas of paper or plastic webs or sections of paper or plastic webs for the production of paper bags. This device comprises: a nozzle unit (1) with several adhesive outlet openings (4) and adhesive supply lines (3), as well as with several adhesive valves (5, 6, 7) through which the adhesive supply lines (3) can be selectively supplied with adhesive, each adhesive valve (5, 6, 7) having at least one plunger (8, 9, 10) with a sealing head and at least one counter element (11, 12, 13) with which the sealing head can enter into sealing contact; and an adhesive chamber (2) with which adhesive can be supplied. The counter element (11, 12, 13) is arranged in or in the immediate vicinity of the adhesive chamber (2).