WO1981001998A1 - Feed mechanism - Google Patents

Feed mechanism Download PDF

Info

Publication number
WO1981001998A1
WO1981001998A1 PCT/DK1981/000003 DK8100003W WO8101998A1 WO 1981001998 A1 WO1981001998 A1 WO 1981001998A1 DK 8100003 W DK8100003 W DK 8100003W WO 8101998 A1 WO8101998 A1 WO 8101998A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed
feed inlet
piston
conveyor
tube
Prior art date
Application number
PCT/DK1981/000003
Other languages
French (fr)
Inventor
B Hansen
Original Assignee
Norgaard Chr Maskin Og Fabrik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Norgaard Chr Maskin Og Fabrik filed Critical Norgaard Chr Maskin Og Fabrik
Publication of WO1981001998A1 publication Critical patent/WO1981001998A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K1/00—Housing animals; Equipment therefor
    • A01K1/01—Removal of dung or urine, e.g. from stables
    • A01K1/0142—Removal of dung or urine, e.g. from stables by means of a moving piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
    • B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
    • B65G25/08—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having impellers, e.g. pushers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices

Definitions

  • the invention relates to a feed mechanism intended for the feeding of solid materials such as e.g. straw or wooden chips in a conveyor pipe having a feed inlet in- one side, which said mechanism incorporates a piston movable towards and away from the feed inlet in a collecting receptacle.
  • Such a mechanism is known from German patent no. 406.652, in which the mentioned feed piston is working in a perpendicularly to the conveyor tube situated feed tube provided with a charging funnel.
  • the feed piston is synchronized with a conveyor piston directing the material in the conveyor tube in such a manner that the feed piston moves forward when the conveyor piston moves backward, or vice versa.
  • the conveyor piston When the feed piston is withdrawn from the feed inlet, the conveyor piston will accordingly move forward against the immediately supplied material and squeeze it through the conveyor tube away from the feed inlet. This may, however, involve an obvious risk that part of the material will be pressed back into the feed tube, and that the material is wedged in near the edge of the feed inlet. This will induce that the conveyor piston is hampered in its forward-moving operation or even jam on account of the material retained by the feed inlet edge.
  • the feed piston at its free end is designed as or carries a thrust pad mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet.
  • the thrust pad of the feed piston will be squeezed into the feed inlet and, while the conveyor piston moves forward, fill up this opening in such a manner that the wall of the conveyor tube will appear practically smooth on the inner side. There will consequently be no edge at the feed inlet grasping the material thus leaving no risk of the material being pressed back into the collecting receptacle.
  • the shown conveyor tube 1 has in one side a feed inlet, through which solid material such as e.g. straw, cardboard, wooden chips or garbage is supplied.
  • a forward and backward movable conveyor piston 5 by way of which the supplied material can be squeezed through the tube.
  • the feed inlet is surrounded by a collecting receptacle 2 intended for the material, which shall be conducted into the tube 1.
  • a collecting receptacle 2 In the collecting receptacle 2 is placed a feed piston 4 movable towards and away from the feed inlet in the conveyor tube 1.
  • the feed piston is at its free end designed as or carrying a thrust pad 3 mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet. Therefore when the thrust pad is directed into the feed inlet, this inlet will be filled up in such a manner that the wall of the conveyor tube 1 will appear practically smooth on the inner side.
  • the thrust pad 3 of the feed piston 4 will remain in the said position closing the feed inlet and smoothing the inside of the tube wall, while the conveyor piston 5 is moving forward past the opening. There will accordingly be no risk of particles of material being wedged in between the conveyor piston and the edge of the feed inlet and thus hampering or even jamming the movement of the conveyor piston, nor will there be any risk involved that material by the conveyor piston 5 is squeezed back through the feed inlet into the collecting receptacle 2.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

Feed mechanism intended for the feeding of solid materials such as e.g. straw or wooden chips into a conveyor pipe (1) having a feed inlet in one side, which said mechanism incorporates a piston (4) movable towards and away from the feed inlet in a collecting receptacle (2). The feed piston is at its free end designed as or carries a thrust pad mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet. In this way the conveyor tube (1) will appear as having a smooth wall, so that wedging-in of material at the feed inlet during transport in the tube (1) may be avoided.

Description

FEED MECHANISM
The invention relates to a feed mechanism intended for the feeding of solid materials such as e.g. straw or wooden chips in a conveyor pipe having a feed inlet in- one side, which said mechanism incorporates a piston movable towards and away from the feed inlet in a collecting receptacle.
Such a mechanism is known from German patent no. 406.652, in which the mentioned feed piston is working in a perpendicularly to the conveyor tube situated feed tube provided with a charging funnel. The feed piston is synchronized with a conveyor piston directing the material in the conveyor tube in such a manner that the feed piston moves forward when the conveyor piston moves backward, or vice versa.
When the feed piston is withdrawn from the feed inlet, the conveyor piston will accordingly move forward against the immediately supplied material and squeeze it through the conveyor tube away from the feed inlet. This may, however, involve an obvious risk that part of the material will be pressed back into the feed tube, and that the material is wedged in near the edge of the feed inlet. This will induce that the conveyor piston is hampered in its forward-moving operation or even jam on account of the material retained by the feed inlet edge.
It is relating to the present invention suggested that the feed piston at its free end is designed as or carries a thrust pad mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet.
By de described feed mechanism the thrust pad of the feed piston will be squeezed into the feed inlet and, while the conveyor piston moves forward, fill up this opening in such a manner that the wall of the conveyor tube will appear practically smooth on the inner side. There will consequently be no edge at the feed inlet grasping the material thus leaving no risk of the material being pressed back into the collecting receptacle.
The invention will in the following be described in detail with reference to the drawing, showing schematically a conveyor tube provided with a feed mechanism according to the invention.
The shown conveyor tube 1 has in one side a feed inlet, through which solid material such as e.g. straw, cardboard, wooden chips or garbage is supplied. In the conveyor tube 1 is situated a forward and backward movable conveyor piston 5, by way of which the supplied material can be squeezed through the tube.
The feed inlet is surrounded by a collecting receptacle 2 intended for the material, which shall be conducted into the tube 1. In the collecting receptacle 2 is placed a feed piston 4 movable towards and away from the feed inlet in the conveyor tube 1.
The feed piston is at its free end designed as or carrying a thrust pad 3 mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet. Therefore when the thrust pad is directed into the feed inlet, this inlet will be filled up in such a manner that the wall of the conveyor tube 1 will appear practically smooth on the inner side.
The thrust pad 3 of the feed piston 4 will remain in the said position closing the feed inlet and smoothing the inside of the tube wall, while the conveyor piston 5 is moving forward past the opening. There will accordingly be no risk of particles of material being wedged in between the conveyor piston and the edge of the feed inlet and thus hampering or even jamming the movement of the conveyor piston, nor will there be any risk involved that material by the conveyor piston 5 is squeezed back through the feed inlet into the collecting receptacle 2.

Claims

P A T E N T C L A I M
Feed mechanism intended for the feeding of solid materials such as e.g. straw or wooden chips into a conveyor pipe (1) having a feed inlet in one side, which said mechanism incorporates a piston (4) movable towards and away from the feed inlet in a collecting receptacle (2), c h a r a c t e r i z e d i n t h a t the feed piston at its free end is designed as or carries a thrust pad mainly comparable to the lacking section of the wall of the conveyor tube in the feed inlet.
PCT/DK1981/000003 1980-01-16 1981-01-14 Feed mechanism WO1981001998A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK19880A DK144093C (en) 1980-01-16 1980-01-16 FOOD MECHANISM FOR INPUTING MATERIAL IN A TRANSPORT ROAD
DK198/80 1980-01-16

Publications (1)

Publication Number Publication Date
WO1981001998A1 true WO1981001998A1 (en) 1981-07-23

Family

ID=8090859

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1981/000003 WO1981001998A1 (en) 1980-01-16 1981-01-14 Feed mechanism

Country Status (3)

Country Link
EP (1) EP0044323A1 (en)
DK (1) DK144093C (en)
WO (1) WO1981001998A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE406652C (en) * 1923-12-01 1924-11-29 Alexanderwerk A Von Der Nahmer Device for conveying feed u. Like. In risers with a piston
FI47749B (en) * 1971-11-09 1973-11-30 Vilho Kangas
SE362777B (en) * 1973-03-08 1973-12-27 B A Sjoeblom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE406652C (en) * 1923-12-01 1924-11-29 Alexanderwerk A Von Der Nahmer Device for conveying feed u. Like. In risers with a piston
FI47749B (en) * 1971-11-09 1973-11-30 Vilho Kangas
SE362777B (en) * 1973-03-08 1973-12-27 B A Sjoeblom

Also Published As

Publication number Publication date
EP0044323A1 (en) 1982-01-27
DK144093B (en) 1981-12-07
DK144093C (en) 1982-05-24
DK19880A (en) 1981-07-17

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