Splicing Tape Feeding Device Positioning Accuracy
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Solution Overview
Problem
The existing splicing tape feeding systems face challenges in accurately positioning the splicing tape due to irregularities and misalignment caused by play between sprockets and sprocket holes, leading to potential misalignment and positioning errors during the splicing process in component mounting machines.
Innovation Solution
A splicing tape feeding device that includes a protection tape feeding mechanism with a sprocket and servo motor, a tape detection sensor, and a control device to accurately position the splicing tape by feeding the protection tape in precise distances and engaging it with the sprocket holes without clearance, ensuring accurate alignment at the splicing position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a splicing tape is pasted on a continuous protection tape at intervals, then the splicing tape can be fed to the splicing position, but positional errors and misalignment occur due to play between the sprocket and sprocket hole
Solution Approach 1:
The patent employs a sensor to detect the position of the splicing tape and feeds this information back to the control device. Based on this feedback, the control device calculates the actual position of the splicing tape and adjusts the protection tape feeding amount accordingly to compensate for positioning errors caused by sprocket play.
Solution Approach 2:
The patent dynamically changes the feeding parameter (feeding amount) of the protection tape based on the detected position of the splicing tape. By adjusting the feeding amount according to the actual position, the system achieves accurate positioning despite initial errors from sprocket engagement play.
2Productivity
If the protection tape is fed by a sprocket, then the splicing tape can be transported, but positioning errors accumulate due to play between the sprocket and sprocket hole
Solution Approach 1:
The sensor detects the actual position of the splicing tape during feeding, and this detection result is fed back to the control device. The control device uses this feedback information to calculate and adjust the feeding amount, thereby compensating for cumulative positioning errors that would otherwise occur during continuous feeding operations.
Solution Approach 2:
The patent replaces pure mechanical positioning (relying solely on sprocket engagement) with a combination of mechanical feeding and electronic control. The control device calculates the required feeding amount based on sensor detection, substituting mechanical precision requirements with electronic measurement and control.
3Device complexity
If the splicing tape is positioned by direct engagement with the sprocket, then the feeding process is simple, but positioning accuracy is low due to inherent play
Solution Approach 1:
The patent introduces an intermediary element (the sensor and control device) between the sprocket feeding mechanism and the splicing tape positioning. This intermediary detects the actual position and mediates the feeding process by adjusting the feeding amount, thereby achieving high positioning accuracy without complicating the basic sprocket engagement mechanism.
4Extent of automation
If multiple splicing tapes are pasted on the protection tape, then continuous splicing is enabled, but positioning errors may accumulate across multiple tapes
Solution Approach 1:
The sensor detects the position of each splicing tape individually as it is fed, and the control device adjusts the feeding amount for each tape based on its specific position. This per-tape feedback control prevents error accumulation across multiple tapes, enabling continuous splicing while maintaining consistent positioning accuracy for each individual tape.
Data Source
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AI summary
Provided are a splicing tape feeding device and a method of feeding the same in which a splicing tape can be accurately positioned at a splicing position regardless of a positional error and the like of the splicing tape pasted in a protection tape. There are provided a plurality of splicing tapes 30 that are pasted at a splicing position LS at intervals to a continuous protection tape 31 fed in a direction orthogonal to a feeding direction of first and second carrier tapes T1 and T2 and connect the first and second carrier tapes to each other, a protection tape feeding device 36 that feeds the protection tape, a tape detection sensor 48 that detects the splicing tape fed into a position immediately before the splicing position, and a control device 59 that controls the protection tape feeding device so as to feed the protection tape N times by a unit distance starting from a position at which the tape detection sensor detects the splicing tape until a successive splicing tape is detected by the tape detection sensor, to feed the protection tape for a certain distance starting from a position at which the successive splicing tape is detected by the tape detection sensor, and to position the splicing tape at the splicing position.