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© 2011 Brother Industries, Ltd. All Rights Reserved. 1
CONFIDENTIAL
SPESA Conference, Sept. 17, 2015
Advancements in Manufacturing Technology
Advancements in Single Needle Lockstitch Sewing Machines
and Electronic Programmable Sewing Machine
Technology
Rick Frye Director of Sales & Engineering, IPD Div.
Brother International Corp.
© 2011 Brother Industries, Ltd. All Rights Reserved. 2 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
Key Design Elements Still in Use Today
- Open arm bed design - Rotary hand wheel- Vertical motion driven needle- Thread take-up assembly- Check Spring device- Upper adjustable thread tension- Presser foot mechanism- Stitch length regulator- Lower material feed mechanism- Rotary shuttle hook mechanism
© 2011 Brother Industries, Ltd. All Rights Reserved. 3 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
Brief History of “Key” Technology Advancements
1960
1970
1980
1990
2000
2010
2015
Needle PositioningAuto Thread Trimming
Motor Control& Functions
Direct Drive Tech.& Lubrication ?
© 2011 Brother Industries, Ltd. All Rights Reserved. 4 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
What if we had an Electronic Feeding System ?
S-7300ASingle Needle Direct Drive Lock Stitch with “Electronic Feeding System”
© 2011 Brother Industries, Ltd. All Rights Reserved. 5 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
World’s First!With PM feed, feed mechanism has been computerized.
Pulse motor provides accurate Movement and positioning, for many advantages
World’s First!Single Needle Lockstitch Sewing Machine with “Pulse Motor” feed mechanism.
© 2011 Brother Industries, Ltd. All Rights Reserved. 6 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
What are the Key Benefits of Electronic Feeding System Technology ?
Feed Motion Profile: The feed motion movement profile can be changed to accommodate the feeding of a variety of material types and conditions.
Multiple Stitch Lengths:Multiple stitch lengths can be programmed within a single seam to address seam quality or simply for decorative stitching.
Reduction in Needle Breakage:Control of the position of the feed mechanism reduces any opportunity for needle breakage during directional change when back tacking.
© 2011 Brother Industries, Ltd. All Rights Reserved. 7 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
The feed dog motion “profile’ can be easily selected electronically to accommodate a variety of material types and conditions.
© 2011 Brother Industries, Ltd. All Rights Reserved. 8 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
Multiple stitch lengths can be programmed within a single seam to address seam quality or simply for decorative stitching
© 2011 Brother Industries, Ltd. All Rights Reserved. 9 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
Control of the position of the feed mechanism reduces any opportunity for needle breakage during directional change (reverse) at high speeds.
Needle
Presser foot
During the Sewing Reverse switching SW ON
Needle breakage occursThe signal
instantaneously sent out with the needle above the presser foot or even below the presser foot.
Switch ON
© 2011 Brother Industries, Ltd. All Rights Reserved. 10 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
Precise position of the feed mechanism at thread trimming combined with the Dual moving knife thread trimming system design allows for better thread tail length control.
© 2011 Brother Industries, Ltd. All Rights Reserved. 11 CONFIDENTIAL
Single Needle Lockstitch Sewing Machines
SummaryThere are a number of advantages to having a single needle lockstitch sewing machine with direct coupled “pulse motor control” of the feed mechanism. This technology provides a more flexible and versatile machine for use in todays sewn products industry.
It provides the end user with the ability to more easily adapt the use of the machine to a variety of fabrics, sewing conditions, and product construction.
© 2011 Brother Industries, Ltd. All Rights Reserved. 12 CONFIDENTIAL
Switching Gears
© 2011 Brother Industries, Ltd. All Rights Reserved. 13 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Advancements in Electronic Programmable Sewing Machine Technology.
© 2011 Brother Industries, Ltd. All Rights Reserved. 14 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
What products & industries are programmable machines most commonly used for ?
-Shoes, Footwear, leather handbags, luggage, fashion leather goods
-Automotive airbags, automotive seat belts, aircraft seat belts
-Safety harness, fall protection, cargo nets, cargo straps / slings
-Military apparel, vests, chin straps, ammo packs, mollies,
-Ball caps, athletic apparel, jeans,
-Used in the manufacturing of a wide array of industries, products, and applications
Commonly Sewn Products
© 2011 Brother Industries, Ltd. All Rights Reserved. 15 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Electronic Programmable Sewing Machines have become more advanced in the last 10 years due to advancements in motion control technology and control processing speeds.
Their use has become more popular as they become more versatile and affordable due to their ability to be programmed and tooled for sewing a variety of products and stitch patterns.
Many aftermarket systems and devices are designed around the use of the electronic programmable sewing.
© 2011 Brother Industries, Ltd. All Rights Reserved. 16 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Closed Loop Servo control
With “Closed Loop” servo control, high-precision pattern sewing is possible and feed drifting does not occur in high speed or heavy material sewing.
・Minimum Resolution 0.05mmMovement is resolved at 0.05mm per pulse making slanted stitch lines and curves more accurately sewn.
ControlBoxMotor
Encoder Command (output signal to drive motor)
Feed Back (to check how much motor has driven)
Servo Control
Feed drifting(Position slippage)
☓
© 2011 Brother Industries, Ltd. All Rights Reserved. 17 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Virtually all sewing patterns for electronic programmable sewing machines are created using some form of a teach pendant device or off line using a PC equipped with pattern programming software.
© 2011 Brother Industries, Ltd. All Rights Reserved. 18 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
What if,………. an electronic programmable sewing machine could some how “create its own sewing
program” based on the object being sewn ?
© 2011 Brother Industries, Ltd. All Rights Reserved. 19 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
It is Possible !
© 2011 Brother Industries, Ltd. All Rights Reserved. 20 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
A system has been developed which is integrated with a programmable Sewing machine that employs an industrial PC with software, custom camera, and lighting, to “automatically” create a stitch pattern around the perimeter of a regular or irregular shaped object (patch, label, applique, etc.) within the sewing area of the machine.
PC Display with product image
Vision Camera and Lighting
Applique / Patch / Label
© 2011 Brother Industries, Ltd. All Rights Reserved. 21 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
With this system, the camera takes a photo of the object and processes the image using preset stitch specifications to create a stitch pattern based upon the perimeter of the object.
Selectable Preset Stitch Parameters include:-Stitch Type: straight or zig zag
-Stitch Length: (for zig zag you select pitch width and length)
-Line Offset: ( + / - )
-Over sew stitches
-Starting Quadrant
© 2011 Brother Industries, Ltd. All Rights Reserved. 22 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
A new program is created for each item placed in the sewing area no matter its position or orientation.
The time to process and create a new program is less than (3) seconds !
© 2011 Brother Industries, Ltd. All Rights Reserved. 23 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Video demo of process
© 2011 Brother Industries, Ltd. All Rights Reserved. 24 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Sewn Example
© 2011 Brother Industries, Ltd. All Rights Reserved. 25 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Here is another example of sewing a pattern requiring the “outside” and “inside” border to be sewn.
© 2011 Brother Industries, Ltd. All Rights Reserved. 26 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Sewn Example
© 2011 Brother Industries, Ltd. All Rights Reserved. 27 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Here is example of sewing a consecutive pattern with no changes to settings.
© 2011 Brother Industries, Ltd. All Rights Reserved. 28 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Sewn Example
© 2011 Brother Industries, Ltd. All Rights Reserved. 29 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
When creating the Pattern, the article to be sewn must lay flat
PATCH
BACKGROUND FABRICANGLE OF CAMERA VIEW
© 2011 Brother Industries, Ltd. All Rights Reserved. 30 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
VGSM Requirements
PERIMTER/BORDER: Outer perimeter (border) of patch color must be consistent around the entire perimeter. This also includes any inner openings.
COLOR CONTRAST: Background fabric color and border color must have a recognizable contrast difference in color in order to be used
SURFACE: Background fabric cannot be shiny or have reflective or a “sheen” surface. (some limitation may also apply to the patch / applique
FLATNESS: Patch / applique must lay flat. Any variance to the height at the perimeter can distort the image making the sewing pattern irregular
LIGHTING: Changes in ambient lighting can affect the settings and how the system operates. Ambient lighting should remain consistent for best results.
© 2011 Brother Industries, Ltd. All Rights Reserved. 31 CONFIDENTIAL
Elec. Programmable Sewing Machine Technology
Thank you