Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY -...
Transcript of Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY -...
![Page 1: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/1.jpg)
Mobile Hops Picker &
Modular Oast
![Page 2: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/2.jpg)
Mobile Hops Picker• Started in 2011, 2012 was our second year of use
• Design team – growers, brewers, crop specialists
• Goal: Provide efficient mechanized harvesting to multiple
yards
• Bridge the gap – hand picking vs. large centralized
harvesters
• Public domain design -
http://www.uvm.edu/extension/cropsoil/wikis
alternatively: uvm.edu search “hops wiki”, 1st link.
![Page 3: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/3.jpg)
Picking
![Page 4: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/4.jpg)
Mobile Hop PickerA project of University of Vermont Extension, Vermont Agency of
Agriculture and Massachusetts Department of Agricultural
Resources through the USDA Specialty Crops Block Grants
Program.
![Page 5: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/5.jpg)
Picker Design RequirementsCapacity 2 bine/min
8 hr/acre
10,000 lbs/day wet {2,000 lbs/day dry}
Portability over road with standard tow hitch
Safety similar to farm equipment
training req’d
Power PTO / direct hydraulic
Cone Damage / Loss <5% by volume
Operation team of two trained operators
![Page 6: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/6.jpg)
Full bines
enter here Stripped
bines exit
here (far
side)
Stripping Section
Hops
and
leaves
Dribble
Belts
And new
ones are
hooked on
here (near
side).
![Page 7: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/7.jpg)
Square Nail Hop Farm
Ferrisburgh, VT 2012
![Page 8: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/8.jpg)
Improvements in 2012• Shortened bine feed (no longer extends beyond
machine)
– Faster setup & no loss in performance with 2 person crew
Before (2011) After (2012)
![Page 9: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/9.jpg)
Improvements in 2012• Improved conveyor belt tracking
– Added support rollers under belts and fencing on sides
![Page 10: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/10.jpg)
Improvements in 2012• Containing cones
within the machine– Left open in the first year
due to schedule, to allow
troubleshooting and to
see what was working
and how.
– Fences added to sides of
conveyors
– Chute added to front to
prevent hops from being
stripped right out of the
machine
![Page 11: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/11.jpg)
Nation Hops
Alexandria, ON, Canada 2012
![Page 12: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/12.jpg)
Borderview Research Farm
Alburgh, VT 2012 – Dribble Belt Adjustment Trials
![Page 13: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/13.jpg)
Dribble Belts @ 1 ft /sec Dribble Belts @ 2 ft /sec
Belt speed increase resulting in better cone
separation.
![Page 14: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/14.jpg)
Main Lessons in 2012• Logistics
– Have to keep the machine fed (120 bines /hr)
– Have to keep the cones shuttled to the oast
• Machine tuning / adjustment
– Opened the front end of the stripping fingers to
reduce number of stripped lateral branches
– Stripping speed and dribble belt speed
adjustment
– Containing cones within the machine for sorting
![Page 15: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/15.jpg)
• Trailer $3,500
• Frame & Subframe $1,800
• Stripping Section $4,100
• Motors, Pump & Hydraulics $5,800
• Conveyor Belts & Rollers $4,200
• Bine Feed $1,200
• Total Material $20,600
• Fabrication Labor $32,000
• Total $52,600
Prototype Cost Summary
![Page 16: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/16.jpg)
Harvester OptionsOption Initial Cost Crew Bine
per
Hour
Manual Zero 1 1
Bine 3060
(Addison Hop
Farm, Addison,
VT)
$14,250 1 10
UVM Mobile
(UVM)
$52,600 (prototype, labor outsourced)
$35,000 (projected repeat, labor outsourced)
$23,000 (projected repeat, DIY 4 weeks)
4 120
Wolf WHE140
(Four Star Farm
Northfield, MA)
$30,000 (delivered and converted, 2 weeks
labor)
8 170
![Page 17: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/17.jpg)
Cost / Benefit (1 of 2)• Assume $35,000 cost of harvester
• 120 bine/hour harvesting rate with machine
– compared to 1.5 bine/hour manually
– $7.25/hr wage assumed
• 6 acres harvest per year
• 1500 bines per acre
• 1 lb dry cones per bine
• Retail pricing of $10 per lb (dry)
![Page 18: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/18.jpg)
Cost / Benefit (2 of 2)• Net hourly revenue:
– Machine $1,171 vs. $7.75 by hand
• Per pound harvest cost:
– Machine $0.37 vs $4.83 by hand
– Includes machine cost and labor
– Per pound harvesting cost reduction of 92%
• Net hourly profit potential:
– Machine $1,126 vs. $0.50 by hand
– And few people would attempt harvesting 6 acres by hand (6000
person hours).
• Machine simple payback period 0.43 years
![Page 19: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/19.jpg)
Modular Hops Oast• Goal: Provide rapid, heated (“but not hot!”) hop
drying in modular design
• Cabinet & tray design – based on an ostrich egg
incubator
• PID Controlled 3,500 Watt heater and circulation
/ stripping fan
• Public domain design -
http://www.uvm.edu/extension/cropsoil/wikis
alternatively: uvm.edu search “hops wiki”, 1st
link.
![Page 20: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/20.jpg)
Dry 800 lbs wet
cones per day
4’x8’x7’
![Page 21: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/21.jpg)
![Page 22: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/22.jpg)
Fan 24”
diameter
3,250 CFM
at 1,750
RPM
3” diameter
Outlet
1” PVC
inlets at 23”
radius from
fan center
at the 4
corners
3,500 Watt
Heater3” diameter
inlet
Thermal
switches
![Page 23: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/23.jpg)
Oast cost
Materials
Lumber-screws-hardware $493
Angle Iron for Tray Racks $208
1/3 H.P. Fan Motors (2) @ $110.00 $220
Fan Blades (2) @$78.00 (Multi-Wing) $156
Heating Elements 3000 Watt (2) @ $332.00 $664
Heating and Fan Controls $200
Total $1941
Labor 30 Hours
![Page 24: Mobile Hops Picker & Modular Oast - Farm Hackfarmhack.org/sites/default/files/tools/files/DARBY - UVM... · 2019. 12. 20. · Mobile Hops Picker • Started in 2011, 2012 was our](https://reader033.fdocuments.net/reader033/viewer/2022060723/608398c30b2e884b70081af5/html5/thumbnails/24.jpg)
Drying Calculatorhttp://www.uvm.edu/extension/agriculture/engine
ering/?Page=hopscalc.html
Google: “uvm hops moisture calculator”, 1st link.
Also available as an Excel spreadsheet for offline
use.