Handle-Linked Welding Reset for Smooth Strapping Machine Operation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Handheld packing machines with a handle experience uncomfortable jerking sensations during the transition of the movable welding workpiece due to the use of single-motor drive systems, which rely on elastic or shifting teeth for connection transitions, leading to unsatisfactory performance.
Innovation Solution
A welding device for handheld packing machines with a handle that employs a rotating member and a reset driving member connected to the handle, using sensors to control the motor's direction of rotation, allowing smoother operation and eliminating the need for additional reset mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-motor drive system is used for the welding device, then the device complexity is reduced, but the ease of operation deteriorates due to jerking sensations during connection transitions
Solution Approach 1:
The patent divides the single motor into two independent motors: a first motor for driving the gear and rotating member, and a second motor for driving the vibration component. This segmentation eliminates the need for complex gear transitions and elastic teeth mechanisms, thereby reducing overall system complexity while improving operational smoothness by eliminating jerking sensations during state transitions.
Solution Approach 2:
The patent introduces a connecting component as an intermediary element that synchronizes the movement of the movable welding workpiece with the handle operation. This connecting component mediates between the handle and the welding mechanism, ensuring smooth transitions without jerking sensations while maintaining the simplicity of the drive system.
2Device complexity
If elastic teeth or shifting teeth are used for connection transitions, then the device complexity is reduced, but the reliability deteriorates due to unsatisfactory transition effects and jerking sensations
Solution Approach 1:
The patent employs a rotating member that dynamically transitions between engaged and disengaged states with the gear, controlled by the first motor. This dynamic mechanism eliminates the need for static elastic teeth or shifting teeth, providing reliable and smooth transitions without jerking sensations, thereby improving connection transition reliability while maintaining simplicity.
3Ease of operation
If the movable welding workpiece is driven by the handle lifting motion, then the ease of operation is improved, but the device complexity increases due to additional reset mechanisms
Solution Approach 1:
The patent merges the handle lifting motion with the workpiece reset function through a connecting component. When the handle is lifted, the connecting component automatically drives the movable welding workpiece back to its initial position via the rotating member. This integration eliminates the need for separate reset mechanisms, improving ease of operation while reducing device complexity.
Solution Approach 2:
The system utilizes the operator's natural handle lifting action to automatically reset the movable welding workpiece. The connecting component converts the handle lifting motion into workpiece reset motion, making the system self-service and eliminating the need for additional dedicated reset mechanisms, thereby improving ease of operation without increasing 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
Ensures smoother handle operation and a simpler structure by synchronizing the movable welding workpiece's movement with handle operation, eliminating jerking sensations and reducing the need for complex gear transitions.
Implementation Method 1
a motor, and a downward pressing and lifting motion assembly for the movable welding workpiece, the downward pressing and lifting motion assembly being provided with a rotating member; wherein the motor drives, by means of the downward pressing and lifting motion assembly, the movable welding workpiece to move downward
Implementation Method 2
the welding device is provided with a connecting component which can move back and forth synchronously with the lifting/lowering motion of the movable welding workpiece
Implementation Method 3
the reset driving member is connected to the handle, the connecting component is located at a position corresponding to the driving member, and when the movable welding workpiece is in the welding working position, the connecting component is located on the motion path of the reset driving member when the handle is lifted, and when the handle is lifted, the connecting component can be driven by the reset driving member to move in a first direction, thereby driving the movable welding workpiece through the downward pressing and lifting motion assembly to the initial position
Data Source
Figure 1a~1b
Figure 2
Figure 3~4
AI summary
A welding device for a handheld packing machine having a handle. A motor of the welding device drives, by means of a downward pressing and lifting motion assembly, a movable welding workpiece to move downward; the welding device is provided with a connecting component which can move back and forth synchronously with the lifting/lowering motion of the movable welding workpiece; the connecting component is arranged on a rotating member; a reset driving member is connected to the handle; the handheld packing machine is provided with a sensor; and after the welding is finished, the motor starts to rotate reversely according to a signal of the sensor until transmission teeth on the rotating member and a gear connected to the motor are switched from a disengaged state to an engaged state. According to the present invention, the movable welding workpiece can be reset by operating the handle of the strapping tensioning device, and through signal control, the handheld packing machine operated by the handle can also achieve a smooth switching from a disengaged state to an engaged state, eliminating the need for a separate reset connection mechanism with a one-way bearing and a rotating gear controlled by a program for start-stop time.