Integrated Cutting and Splicing Device for Textile Cord Strip
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Solution Overview
Problem
Existing devices for cutting and splicing sticky tape, particularly textile cord tape, face inefficiencies in cycle time due to the need for horizontal conveyance of cut tape sections to a separate splicing device, which increases processing time and reduces output.
Innovation Solution
Integration of the splicing device into the cutting device, with a receiving device that moves vertically to position the cut tape edge in a defined relationship with the previous splice edge, eliminating the need for horizontal conveyance and allowing for precise, automatic splicing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If horizontal conveyance is used to transport cut strip section to separate splicing device, then splicing operation can be performed, but processing time increases and productivity decreases
Solution Approach 1:
The patent combines the cutting device and splicing device into a single integrated unit, eliminating the need for horizontal conveyance between separate devices. The receiving device is positioned immediately downstream of the cutting device, allowing cut strip sections to be directly transferred to the splicing device without intermediate transport, thereby reducing processing time and increasing productivity
2Manufacturing precision
If separate cutting and splicing devices are used with horizontal conveyance, then device complexity is reduced, but manufacturing precision of edge positioning deteriorates
Solution Approach 1:
By integrating the cutting and splicing devices into a single unit with the receiving device positioned immediately downstream, the patent achieves precise edge positioning through direct transfer. The vertical movement mechanism ensures accurate alignment of strip edges during splicing, maintaining high manufacturing precision while the integrated design actually simplifies the overall system by eliminating separate conveyance systems
3Productivity
If vertical movement of receiving device is implemented, then processing time is reduced, but device complexity increases
Solution Approach 1:
The receiving device is designed with vertical movement capability between upper and lower positions, allowing dynamic adjustment to accommodate the splicing operation. This dynamic positioning enables the receiving device to move the cut strip section vertically into alignment with the splicing device, significantly reducing processing time while the movement mechanism remains relatively simple
Data Source
Figure 1
Figure 2~3B
Figure 4A~5B
AI summary
A strip cutting unit(3) immediately precedes a holder(4) which supports cut strip sections(2a) and moves each to a lower splicing position. In the lower position the leading strip edge(16) to be spliced is located in a specific position relative to the trailing edge(13) of a previously spliced section(14) onto which it is to be spliced in an immediately adjacent splicing unit(5). The holder (4) is a stroking unit which moves linearly in a vertical direction or makes a swiveling movement in the vertical direction. In its upper position the holder supports a strip section(2a) which is moved by a conveyer into the cutting position. Strip sections are held in position during and after cutting by a suction system. A transporting system, comprising parallel conveyers, for conveying spliced strip sections(14,15) extends into the working area of the strip holder in its lower position, the strip holder also comprising parallel sections. In this position the holder upper side is either aligned with or lies below the conveyer transporting plane. Sensors(18), particularly light boxes, detect the rear edge(13) of a previously spliced strip section(14) and the spliced section conveyer operates in response to the sensor. The sensors and splicer unit can move as a unit. Movement(H) of the splicer unit is horizontal relative to the holder. A sensor(19) records the position of at least one long edge(20) of the strip to be cut and the splicing unit(5) is positioned accordingly. Clamps(17) hold the previously spliced strip section in the splicing unit. An independent claim is included for a process for manufacturing a continuous strip from adhesive, preferably textile cord, strips in which a strip section is cut from a fed strip and a holder moves the cut section to a lower splicing position in which the edge to be spliced is automatically positioned relative to the edge of a previously cut strip and then spliced onto it.