US3661381A - Pneumatic conveyors - Google Patents

Pneumatic conveyors Download PDF

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Publication number
US3661381A
US3661381A US20906A US3661381DA US3661381A US 3661381 A US3661381 A US 3661381A US 20906 A US20906 A US 20906A US 3661381D A US3661381D A US 3661381DA US 3661381 A US3661381 A US 3661381A
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US
United States
Prior art keywords
article
chamber
end wall
wall
tight contact
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US20906A
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English (en)
Inventor
Bernard Kuzniak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
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Publication of US3661381A publication Critical patent/US3661381A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/26—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles
    • B65H29/32—Delivering or advancing articles from machines; Advancing articles to or into piles by dropping the articles from pneumatic, e.g. suction, carriers
    • 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
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B65G21/2027—Suction retaining means
    • B65G21/2036—Suction retaining means for retaining the load on the load-carrying surface
    • 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
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/063—Transporting devices for sheet glass
    • B65G49/064—Transporting devices for sheet glass in a horizontal position
    • B65G49/065—Transporting devices for sheet glass in a horizontal position supported partially or completely on fluid cushions, e.g. a gas cushion
    • 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
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/068—Stacking or destacking devices; Means for preventing damage to stacked sheets, e.g. spaces
    • 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
    • B65G57/00—Stacking of articles
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/03—Stacking of articles by adding to the top of the stack from above
    • B65G57/035—Stacking of articles by adding to the top of the stack from above with a stepwise downward movement of the stack
    • 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
    • B65G57/00—Stacking of articles
    • B65G57/02—Stacking of articles by adding to the top of the stack
    • B65G57/03—Stacking of articles by adding to the top of the stack from above
    • B65G57/04—Stacking of articles by adding to the top of the stack from above by suction or magnetic devices
    • 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
    • B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
    • B65G2249/04—Arrangements of vacuum systems or suction cups
    • B65G2249/045—Details of suction cups suction cups

Definitions

  • the means for advancing the product and the means for allowing the suction to be applied usefully to the product comprise a common device which forms a movable end wall of the box or chamber opposite a fixed wall beyond which the product is transported.
  • the suction mechanism is connected to the end of the box or chamber adjoining the fixed wall, and the movable wall is able to move in a practically fluid-tight manner along the box or chamber.
  • the open side of the chamber has sealing means which engage the article to be displaced, and the movable wall carries guide rollers which cooperate with slots disposed respectively in vertical walls of the box or chamber, the displacement of the movable wall being effected through the action of suction.
  • Means are also provided to urge the movable wall towards its position of rest.
  • the invention relates to a conveyor operating by suction for transporting flat or longitudinally corrugated rectangular articles placed on an elevating table, comprising in combination a suction source, means for advancing each article to be transported in sealing contact with a chamber having the form of a rectangular parallelipiped open over the whole of its lower side and in communication with the suction source and means for only permitting the suction to be usefully applied to the article in the part of the chamber against which the article is located at a given moment, characterized in that the means for advancing the product and the means for allowing the suction to be applied usefully to the product comprise a common device including a movable end wall of the box opposite the fixed wall beyond which the product is to be transported.
  • the suction mechanism is connected to the end of the box adjoining the fixed wall, and the movable wall is T-shaped in section through the median longitudinal plane of the box, the bar of the T being disposed vertically and its top end being able to move in a practically fluid-tight manner along the top wall of the box while its bottom end carries a flexible sealing skirt.
  • This latter end projects out of the box between two flexible sealing skirts fastened to the side walls of said box and pushes the product to be displaced.
  • the lower portion of the movable wall carries two guide rollers which cooperate with two horizontal slots disposed respectively in each vertical wall of the box,
  • F 10$. 1 to 3 are median longitudinal sections of a first form of construction of the conveyor according to the invention, respectively at rest, in course of operation, and after the product has left the conveyor.
  • the conveyor comprises essentially a casing designated generally by l and of general parallelepipedic shape, the larger dimension being disposed horizontally and the bottom face and one end being open.
  • This casing defines a chamber having two parallel longitudinal vertical walls la, of which only one is visible, a top horizontal wall lb, a fixed vertical end wall 10, and a movable vertical end wall 2 located within the open end of the chamber.
  • a suction pipe 3 connected to a suction source illustrated diagrammatically by the arrow 4.
  • the walls la and 1c carry at their bottom ends flexible sealing skirts 5, 5a, and the wall 2 similarly carries a sealing skirt 6.
  • the wall 2 has a T-shaped section through the plane of FIGS. 1 to 3.
  • the bar 2a of the T is disposed vertically and the relatively short stem 2b is disposed horizontally (in the normal position, that is to say in the positions shown in FIGS. 1 and 2).
  • the bar 2a carries two guide rollers 7 (of which only one is visible) which run in two horizontal guide slots 8 provided at the same height in the walls 1a.
  • the stem 2b of the T carries, near its free end, two guide rollers 9 similar to the rollers 7 and adapted to run in two series of slots 10 having the shape of parallelograms and formed in the walls 1a, each comprising two parallel horizontal lengths 10a, 10b, both situated above the slots 8 and connected by two parallel oblique lengths 10c, 10d which are inclined by about 45 from bottom to top in the direction of the fixed wall 1c.
  • the slots 8 terminate at the open end of the walls 1a, while on the corresponding side the slots 10a terminate at the slots 10d.
  • the slots 10a are extended as indicated in broken lines at 10a to the open end of each wall 1a, and the portions 10c are closed by suitable stoppers after the rollers 9 have been placed in position.
  • the top edge 20 of the movable wall 2 is displaced practically without clearance along the top wall 1b of the chamber 1, if desired with the inter-position of a suitable seal (not shown).
  • the wall 2 carries a cable 11 which is wound over a return pulley 12, the shaft 13 of which is carried by a fixed point, for example a point connected to the chamber 1, and at the opposite end of the cable 11 a counterweight 14 is fixed.
  • idler rollers 15 are mounted loose at 16 at the bottom end of each wall 1a, so that their lower generatrix is situated at a higher level than the lower edges of the skirts 5, 5a, and 6.
  • an elevator table 17 is adapted to receive a certain number of flat products, which are the panels 18 in the example illustrated, and which have to be displaced with the aid of the conveyor according to the invention.
  • These panels are advantageously of agglomerated material and may in particular have fairly high porosity, so that it is difficult to handle them with the aid of known suction cup devices.
  • this device may be a machine intended to subject the panels to further treatment.
  • this device has been illustrated very diagrammatically in the form of a driving roller 19 of known type which rotates about a shaft 20 carried in any suitable manner and driven by means which are not illustrated.
  • the table 17 When the various elements are in the position illustrated in FIG. 1, the table 17 is raised until the top panel 18 is in contact with the rollers 15, the skirts 5, 5a, and 6 entirely surrounding the panel in a fluid-tight manner. With the aid of the source 4, suction is applied to the chamber 1 and this has the effect that the panel 18 is firmly held against the rollers 15. The table 17 is then lowered. The suction in the pipe 3 is transmitted to the movable wall 2 and tends to displace the latter towards the right in FIGS. 1 to 3. This displacement is guided by the rollers 7 rolling in the slots 8, and by the rollers 9 rolling in the slots 10a. The wall 2 in contact with the left-hand end of the panel 18 drives the latter towards the right (position shown in H6. 2).
  • a pneumatic conveyor for transporting successive articles comprising, in combination:
  • means defining a suction chamber having a first opening facing an article to be transported and a second opening;
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said first opening;
  • wall means disposed within the second opening of the 'chamber in position to engage said article when the article is in said substantially air-tight contact, said wall means being movable within said chamber to transport said article along said first opening with the article in said substantially air-tight contact.
  • a pneumatic conveyor for transporting successive articles comprising, in combination:
  • means defining a suction chamber having a first opening facing an article to be transported and a second opening;
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said first opening;
  • wall means disposed within the second opening of the chamber in position to engage said article when the article is in said substantially air-tight contact, said wall means being movable within said chamber to transport said article along said first opening with the article in said substantially air-tight contact, said wall means blocking said second opening during at least a portion of its movement within said chamber;
  • a pneumatic conveyor according to claim 2 in which the suction applied to said chamber holds the article and the chamber defining means in said substantially air-tight contact and simultaneously moves said wall means to said predetermined position.
  • a pneumatic conveyor for transporting an article comprising, in combination:
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said additional opening;
  • means including an end wall disposed within the open end of the chamber in position to engage said article when said article is in said substantially air-tight contact, said end wall being movable between a rearward position adjacent said open end and a forward position intermediate the ends of the chamber;
  • a pneumatic conveyor for transporting an article comprising, in combination:
  • means defining an elongate chamber having a fixed wall at one end thereof and being open at the opposite end, the chamber including an additional opening intermediate its ends in facing relationship with an article to be transported;
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said additional opening;
  • means including an end wall disposed within the open end of the chamber in position to engage said article when said article is in said substantially air-tight contact, said end wall being movable between a rearward position in which the end wall blocks said open end and a forward position intermediate the ends of the chamber;
  • a pneumatic conveyor for transporting an article comprising, in combination:
  • means defining an elongate chamber having a fixed wall at one end thereof and being open at the opposite end, the chamber including an additional opening intermediate its ends in facing relationship with an article to be transported;
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said additional opening;
  • means including an end wall of T-shaped cross section disposed within the open end of the chamber in position to engage said article when said article is in said substantially air-tight contact, said end wall being movable between a rearward position in which the bar of the T blocks said open end and is substantially parallel to said fixed wall and a forward position in which the bar of the T is disposed at an angle with respect to said fixed wall;
  • a pneumatic conveyor according to claim 8 in which:
  • the chamber defining means further includes a pair of longitudinal side walls, each of said side walls having a groove extending in the direction of movement of the article;
  • the maintaining means for the bar of said T comprises a pair of rollers carried by said end wall and respectively extending into the grooves in the side walls.
  • a pneumatic conveyor according to claim 9 in which:
  • the groove in each of the side walls forms a parallelogram having two longitudinally extending lengths
  • the maintaining means for the bar of said T comprises an additional pair of rollers carried by the stem of the T and respectively extending into said grooves, the rollers in each groove being disposed on the same longitudinally prising in combination:
  • means defining an elongate chamber having a fixed wall at one end thereof and being open at the opposite end, the chamber including an additional opening intermediate its ends in facing relationship with an article to be transported;
  • positioning means for locating the article and the chamber defining means in substantially air-tight contact, with the article blocking said additional opening;
  • means including an end wall of T-shaped cross section disposed within the open end of the chamber in position to engage said article when said article is in said substantially air-tight contact, said end wall being movable between a rearward position in which the bar of the T blocks said open end and is substantially parallel to said fixed wall and a forward position in which the bar of the T is disposed at an angle with respect to said fixed wall;
  • means defining an elongate chamber having a pair of longitudinal side walls and a fixed wall at one end thereof, the chamber being open at its opposite end and including an additional opening intermediate its ends in facing relationship with an article to be transported;
  • the chamber defining means including a plurality of sealing skirts carried by said side walls and said fixed wall for maintaining the anicle in substantially air-tight contact therewith, with the article blocking said additional opening;
  • means including an end wall of T-shaped cross section disposed within the open end of the chamber in position to engage said article whensaid article is in said substantially air-tight contact, said end wall being movable between a rearward position in which the bar of the T blocks said open end and is substantially parallel to said fixed wall and a forward position in which the bar of the T is disposed at an angle with respect to said fixed wall;

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
US20906A 1969-04-18 1970-03-19 Pneumatic conveyors Expired - Lifetime US3661381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6912139A FR2041277A5 (enrdf_load_stackoverflow) 1969-04-18 1969-04-18

Publications (1)

Publication Number Publication Date
US3661381A true US3661381A (en) 1972-05-09

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ID=9032661

Family Applications (1)

Application Number Title Priority Date Filing Date
US20906A Expired - Lifetime US3661381A (en) 1969-04-18 1970-03-19 Pneumatic conveyors

Country Status (3)

Country Link
US (1) US3661381A (enrdf_load_stackoverflow)
FR (1) FR2041277A5 (enrdf_load_stackoverflow)
SE (1) SE367806B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994489A (en) * 1974-09-19 1976-11-30 Henc Edward V Rolling vacuum feed table
US4059263A (en) * 1974-09-19 1977-11-22 Henc Edward V Vacuum feed
US4235432A (en) * 1978-06-30 1980-11-25 Marquip, Inc. Sheet feeding
US4661195A (en) * 1983-06-21 1987-04-28 Metal Box Public Limited Company Methods and apparatus for removing labels or carriers from containers
WO2010127745A3 (de) * 2009-05-02 2011-01-27 Kba-Metalprint Gmbh Vorrichtung zum transportieren von tafelförmigen gütern
CN108602164A (zh) * 2016-02-08 2018-09-28 三菱电机株式会社 翅片堆叠装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903156A (en) * 1954-02-03 1959-09-08 Gisholt Machine Co Seal opening and transferring mechanism
US3133784A (en) * 1961-10-06 1964-05-19 United Telecontrol Electronics Card issuing machine
US3390875A (en) * 1965-10-06 1968-07-02 Bartelt Engineering Co Inc Coupon feeder
CA805557A (en) * 1969-02-04 A. Jaatinen Per Device for removing sheets or plates from a pile one by one

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA805557A (en) * 1969-02-04 A. Jaatinen Per Device for removing sheets or plates from a pile one by one
US2903156A (en) * 1954-02-03 1959-09-08 Gisholt Machine Co Seal opening and transferring mechanism
US3133784A (en) * 1961-10-06 1964-05-19 United Telecontrol Electronics Card issuing machine
US3390875A (en) * 1965-10-06 1968-07-02 Bartelt Engineering Co Inc Coupon feeder

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994489A (en) * 1974-09-19 1976-11-30 Henc Edward V Rolling vacuum feed table
US4059263A (en) * 1974-09-19 1977-11-22 Henc Edward V Vacuum feed
US4235432A (en) * 1978-06-30 1980-11-25 Marquip, Inc. Sheet feeding
US4661195A (en) * 1983-06-21 1987-04-28 Metal Box Public Limited Company Methods and apparatus for removing labels or carriers from containers
WO2010127745A3 (de) * 2009-05-02 2011-01-27 Kba-Metalprint Gmbh Vorrichtung zum transportieren von tafelförmigen gütern
CN102414096A (zh) * 2009-05-02 2012-04-11 Kba金属印刷有限公司 用于传送板状货物的设备
CN102414096B (zh) * 2009-05-02 2014-05-21 Kba金属印刷有限公司 用于传送板状货物的设备
CN108602164A (zh) * 2016-02-08 2018-09-28 三菱电机株式会社 翅片堆叠装置
US10507511B2 (en) * 2016-02-08 2019-12-17 Mitsubishi Electric Corporation Fin stacking apparatus

Also Published As

Publication number Publication date
FR2041277A5 (enrdf_load_stackoverflow) 1971-01-29
SE367806B (enrdf_load_stackoverflow) 1974-06-10

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