US3706369A - Inclination correcting device for bags carrying fasteners - Google Patents

Inclination correcting device for bags carrying fasteners Download PDF

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Publication number
US3706369A
US3706369A US143181A US3706369DA US3706369A US 3706369 A US3706369 A US 3706369A US 143181 A US143181 A US 143181A US 3706369D A US3706369D A US 3706369DA US 3706369 A US3706369 A US 3706369A
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United States
Prior art keywords
belts
bags
protrusions
bag
pulleys
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Expired - Lifetime
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US143181A
Inventor
Hiroshi Ishida
Minoru Mukai
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Fujifilm Holdings Corp
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Fuji Photo Film Co Ltd
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    • 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
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/22—Devices influencing the relative position or the attitude of articles during transit by conveyors
    • 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
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/10—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface
    • B65G15/12—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts
    • B65G15/14—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts the load being conveyed between the belts
    • 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
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles

Definitions

  • the present invention relates to devices for correcting the inclination of the bags fed in an automation system, and particularly to a device for correcting the inclination of the .bags containing powder, liquid, or solid material and closed by a laterally projecting fastener.
  • a bag jammed with powders or the like is fed to a station of the automation system where the bag opening is heat sealed near the fastener.
  • the bag is required to be positioned in the proper position so that the seal occurs at the right position of the bag.
  • the present invention provides a device which automatically corrects the inclination of inclined bags in an automation conveyor line.
  • the present invention corrects the inclination of the inclined bags carrying fasteners by utilizing a pair of inclined belts for hanging the bag onto the conveyor.
  • FIGS. 1A and 1B are plan views showing the rotating portions of the device in accordance with two embodiments of the present invention.
  • FIGS. 2A, 2B, 2C and 2D are side views thereof, wherein A and B correspond to FIG. 1A, and C and D correspond to FIG. 1B;
  • FIG. 3 is a perspective view of the embodiment of FIG. 1A seen from the inlet side thereof;
  • FIG. 4 is a side view showing the situation where various inclinations of the bags with fasteners are corrected at the belt portion of the devices of FIGS. 1 through 3.
  • a pair of belt pulleys 1,1 and 2,2 are provided for holding a pair of belts 6,6
  • tension rollers 3, 4, 5, 9 are provided with the belts 6,6 for forming a bag guiding portion.
  • the belts 6,6 are adequately spaced from each other.
  • the belts 6,6 may be made of rubber, spiral springs, or plastics, but from the view point of endurance and function or effect the spiral spring is preferred relatively. The preference for the spiral spring is because the spiral spring has good tension and a low friction coefficient. Since the belts hold the bags therebetween at the portion just below the fastener 10 provided on the bag and hang the bag at the fastener portion due to its lateral protuberance, it is required that the bag slips down to the position where the fastener is brought into engagement with the upper edge of the hanging belts.
  • the bags should slip freely between the belts but should stop at the fastener portion due to the tension of the belts.
  • the spiral spring is best suited as the material for the belts.
  • the spring is better fitted for the belts than rubber in design and in function or effect.
  • the position of the pulleys and tension rollers is fixed as shown in FIG. 2 so that the guide-in pulleys 1,1 are at the lowest level, the tension rollers 3,4,5 are at a higher level in this order, and the other pulleys 2 are at the highest level.
  • the bags which are brought into the roller assembly are hung by the fastener portion 10 on the belts 6,6 so that the inclination of the bag is corrected, as shown in FIG. 4D.
  • the inclination of the belts and the shape of the center line of the belts may be a straight line or arcuate curve or any other shape as long as they are able to correct the inclination of the bag.
  • the shape of the center line of the belts should be horizontal, at least at its highest portion, for final correction of the inclination of the bag.
  • the spacing between the belts may be variably controlled.
  • One example for controlling the spacing is shown in FIG. 3, wherein supporting plates 12 are able to be shifted by unscrewing the controlling screws 13 which bolt the supporting plates 12 to the fixed plates 11.
  • the level of the belts at the inlet of the device are set lower than the level of the fastener of the bag.
  • the linear speed of the belts should be equal to or lower than that of the feeding and sealing mechanism 8 to which the above-described inclination correcting device is adapted. That is because, if the speed of the belts is faster than that of themechanism to which the bags are fed, the bags will jam at the discharge end of the device and may possibly be sealed together.
  • FIGS. 2C and 4B and 4C are constructed so that the belts of the device are at a lower level than the belts of the end mechanism.
  • FIG. 4B shows an embodiment of the device wherein the mechanism to which the device is adapted is a sealing apparatus for sealing the opening portion of the bag.
  • FIG. 4C shows an embodiment of the device in accordance with the present invention wherein the mechanism to which the device is adapted is a fentening apparatus for closing the opening of the bag at the fastener of the belts thereof.
  • FIGS. 1A, 2A, 2B and 4A the devices shown are directly mounted or related to the bag treating mechanism and such that the belts 6 are integral with the feed belts of the mechanism as shown at 7 in FIG. 1A.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

A plurality of pulleys and rollers are arranged in two groups in spaced parallel relation with each other. A moving belt is tensioned around each group of pulleys and rollers respectively and the bags are carried therebetween. While the bags are moving, the inclination is corrected since the fastener of each bag engages with the upper edge of the belts and is hung thereby.

Description

United States Patent Ishida et al.
[45] Dec. 19, 1972 INCLINATION CORRECTING DEVICE FOR BAGS CARRYING FASTENERS Inventors: Hiroshi lshida; Minoru Mukai, both of Kanagawa, Japan Assignees Fuji Photo Film Co., Ltd.,
Kanagawa, Japan Filed: May 13, 1971 Appl. No.: 143,181
Related US. Application Data Continuation of Ser. No. 830,030, June 3. 1969, abandoned.
US. Cl. ..198/33 AD, 198/165 Int. Cl ..B65g 47/24 Field of Search ..l98/l65 References Cited UNITED STATES PATENTS 3,203,534 8/1965 Burkhardt ..l98/l65 Primary Examiner-Evon C. Blunk Assistant ExaminerDouglas D. Watts Attorney-Sughrue, Rothwell, Mion, Zinn & Macpeak [57] ABSTRACT A plurality of pulleys and rollers are arranged in two groups in spaced parallel relation with each other. A
' moving belt is tensioned around each group of pulleys and rollers respectively and the bags are carried therebetween. While the bags are moving, the inclination is corrected since the fastener of each bag engages with the upper edge of the belts and is hung thereby.
l Claim, 11 Drawing Figures INCLINATION CORRECTING DEVICE FOR BAGS CARRYING FASTENERS This application is a continuation of application 830,030 filed June 3, 1969, now abandoned.
BACKGROUND OF THE INVENTION The present invention relates to devices for correcting the inclination of the bags fed in an automation system, and particularly to a device for correcting the inclination of the .bags containing powder, liquid, or solid material and closed by a laterally projecting fastener.
In an automation process, a bag jammed with powders or the like is fed to a station of the automation system where the bag opening is heat sealed near the fastener. In such a process, the bag is required to be positioned in the proper position so that the seal occurs at the right position of the bag.
In the prior-art, inclination of the bag on the conveyor was not corrected automatically, but manually. Such inclination often occurs in a heat sealer, fastener closing process, stamping process and the like which is automated.
SUMMARY OF THE INVENTION The present invention provides a device which automatically corrects the inclination of inclined bags in an automation conveyor line.
The present invention corrects the inclination of the inclined bags carrying fasteners by utilizing a pair of inclined belts for hanging the bag onto the conveyor.
BRIEF DESCRIPTION OF THE DRAWING FIGS. 1A and 1B are plan views showing the rotating portions of the device in accordance with two embodiments of the present invention; v
FIGS. 2A, 2B, 2C and 2D are side views thereof, wherein A and B correspond to FIG. 1A, and C and D correspond to FIG. 1B;
FIG. 3 is a perspective view of the embodiment of FIG. 1A seen from the inlet side thereof; and
FIG. 4 is a side view showing the situation where various inclinations of the bags with fasteners are corrected at the belt portion of the devices of FIGS. 1 through 3.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 18 and 2D, a pair of belt pulleys 1,1 and 2,2 are provided for holding a pair of belts 6,6
which are of proper material and shape. Between the pulleys, tension rollers 3, 4, 5, 9 are provided with the belts 6,6 for forming a bag guiding portion. Necessarily, the belts 6,6 are adequately spaced from each other. The belts 6,6 may be made of rubber, spiral springs, or plastics, but from the view point of endurance and function or effect the spiral spring is preferred relatively. The preference for the spiral spring is because the spiral spring has good tension and a low friction coefficient. Since the belts hold the bags therebetween at the portion just below the fastener 10 provided on the bag and hang the bag at the fastener portion due to its lateral protuberance, it is required that the bag slips down to the position where the fastener is brought into engagement with the upper edge of the hanging belts. Therefore, the bags should slip freely between the belts but should stop at the fastener portion due to the tension of the belts. From such viewpoint, the spiral spring is best suited as the material for the belts. On the other hand, in the case when rubber forms the belts, although it has enough tension and can hold the bag, the bag will not easily slip down the same due to its high friction coefficient. If the both belts are spaced relatively far in order to make the bag slip easily, the bag will not stop at the fastener portion with certainty. Thus, the spring is better fitted for the belts than rubber in design and in function or effect.
The position of the pulleys and tension rollers is fixed as shown in FIG. 2 so that the guide-in pulleys 1,1 are at the lowest level, the tension rollers 3,4,5 are at a higher level in this order, and the other pulleys 2 are at the highest level. According to the variation in level of the pulleys and rollers, the bags which are brought into the roller assembly, are hung by the fastener portion 10 on the belts 6,6 so that the inclination of the bag is corrected, as shown in FIG. 4D. The inclination of the belts and the shape of the center line of the belts may be a straight line or arcuate curve or any other shape as long as they are able to correct the inclination of the bag. The shape of the center line of the belts should be horizontal, at least at its highest portion, for final correction of the inclination of the bag.
The spacing between the belts may be variably controlled. One example for controlling the spacing is shown in FIG. 3, wherein supporting plates 12 are able to be shifted by unscrewing the controlling screws 13 which bolt the supporting plates 12 to the fixed plates 11. The level of the belts at the inlet of the device are set lower than the level of the fastener of the bag. The linear speed of the belts should be equal to or lower than that of the feeding and sealing mechanism 8 to which the above-described inclination correcting device is adapted. That is because, if the speed of the belts is faster than that of themechanism to which the bags are fed, the bags will jam at the discharge end of the device and may possibly be sealed together.
The embodiments shown in FIGS. 2C and 4B and 4C are constructed so that the belts of the device are at a lower level than the belts of the end mechanism. FIG. 4B shows an embodiment of the device wherein the mechanism to which the device is adapted is a sealing apparatus for sealing the opening portion of the bag. FIG. 4C shows an embodiment of the device in accordance with the present invention wherein the mechanism to which the device is adapted is a fentening apparatus for closing the opening of the bag at the fastener of the belts thereof.
In FIGS. 1A, 2A, 2B and 4A the devices shown are directly mounted or related to the bag treating mechanism and such that the belts 6 are integral with the feed belts of the mechanism as shown at 7 in FIG. 1A.
Thus the invention and its advantages will be understood from the foregoing description.
What is claimed is:
1. A method of correcting fore or aft inclination of bags having'protrusions extending laterally from each side of the same as they move serially, and in vertical upright fashion, along a given longitudinal conveyor path, said method comprising:
feeding said bags between a pair of laterally spaced endless feed belts carried by a plurality of pulleys arranged in two laterally spaced groups, in parallel with each other, their axis of rotation being vertical and one group positioned on each side of the moving bag with the endless feed belts tensioned around respective groups of pulleys and inclined upwardly in the feed direction,
spacing the belts laterally to lightly grasp the bags during feeding for frictional movement with the belt while spacing the belts less than the thickness of the bag and its protrusions,
positioning the upper edge of said belts at their intake ends'below the level of the lateral protrusions of the approaching bags, and positioning the discharge ends of the same above the level of the protrusions of the approaching bags, and
allowing the bags to slip downward between the belts T ED STATES PATENT @FFKQE ETEFATE @E 6% Efi'HQN Pat nt No. 3,706 369 Date December 19, 1972' Inventor(s) Hiroshi Ishida et al It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below':
In The Heading The PriorityDate was omitted. Should Read:
June 10, 1968 Japan ....48794/68 Signed and sealed this 29th day of May 1973.
(SEAL) Attest:
EDWARD M.FLETCHER,JR. ROBERT GOTTSCHALK Attesting Officer Commissioner of Patents FORM P0405) USCOMM-DC dove-P69 U.S. GOVERNMENT PRINTING OFFlCEZ 959 0356-334

Claims (1)

1. A method of correcting fore or aft inclination of bags having protrusions extending laterally from each side of the same as they move serially, and in vertical upright fashion, along a given longitudinal conveyor path, said method comprising: feeding said bags between a pair of laterally spaced endless feed belts carried by a plurality of pulleys arranged in two laterally spaced groups, in parallel with each other, their axis of rotation being vertical and one group positioned on each side of the moving bag with the endless feed belts tensioned around respective groups of pulleys and inclined upwardly in the feed direction, spacing the belts laterally to lightly grasp the bags during feeding for frictional movement with the belt while spacing the belts less than the thickness of the bag and its protrusions, positioning the upper edge of said belts at their intake ends below the level of the lateral protrusions of the approaching bags, and positioning the discharge ends of the same above the level of the protrusions of the approaching bags, and allowing the bags To slip downward between the belts under light frictional restraint during movement until the protrusions ride on the upper edges of respective belts to achieve proper, uniform orientation of the bags with the edges of the belts during transport.
US143181A 1971-05-13 1971-05-13 Inclination correcting device for bags carrying fasteners Expired - Lifetime US3706369A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851778A (en) * 1972-02-11 1974-12-03 Von Roll Ag Transport system for goods carriers
US3931882A (en) * 1973-05-04 1976-01-13 Ossbahr C Modular article conveyor
US4014428A (en) * 1973-05-04 1977-03-29 Ossbahr C Modular article conveyor
US4566584A (en) * 1984-10-29 1986-01-28 Hi-Speed Checkweigher Co., Inc. Weighing conveyor
DE3526659A1 (en) * 1985-07-24 1987-02-05 Emhart Ind DEVICE FOR ALIGNING CONTAINERS
US4653628A (en) * 1984-03-23 1987-03-31 Emhart Industries, Inc. Apparatus for orienting containers
US4802571A (en) * 1985-04-27 1989-02-07 Seitz Enzinger Noll Maschinenbau Aktiengesellschaft Apparatus for conveying suspended bottles
US4823940A (en) * 1988-01-15 1989-04-25 Schuyler Dynamics Flat article conveyor
US4850473A (en) * 1986-07-31 1989-07-25 International Business Machines Corporation Conveyor system including a buffer store
US5388707A (en) * 1992-06-30 1995-02-14 Agr International, Inc. Apparatus for inspecting the exterior finish of containers and associated method
US5553698A (en) * 1994-12-28 1996-09-10 J And J Container Handling Systems Conveyor belt apparatus for bottles

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203534A (en) * 1960-09-01 1965-08-31 Telefunken Patent Conveyor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3203534A (en) * 1960-09-01 1965-08-31 Telefunken Patent Conveyor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851778A (en) * 1972-02-11 1974-12-03 Von Roll Ag Transport system for goods carriers
US3931882A (en) * 1973-05-04 1976-01-13 Ossbahr C Modular article conveyor
US4014428A (en) * 1973-05-04 1977-03-29 Ossbahr C Modular article conveyor
US4653628A (en) * 1984-03-23 1987-03-31 Emhart Industries, Inc. Apparatus for orienting containers
US4566584A (en) * 1984-10-29 1986-01-28 Hi-Speed Checkweigher Co., Inc. Weighing conveyor
US4802571A (en) * 1985-04-27 1989-02-07 Seitz Enzinger Noll Maschinenbau Aktiengesellschaft Apparatus for conveying suspended bottles
DE3526659A1 (en) * 1985-07-24 1987-02-05 Emhart Ind DEVICE FOR ALIGNING CONTAINERS
US4850473A (en) * 1986-07-31 1989-07-25 International Business Machines Corporation Conveyor system including a buffer store
US4823940A (en) * 1988-01-15 1989-04-25 Schuyler Dynamics Flat article conveyor
US5388707A (en) * 1992-06-30 1995-02-14 Agr International, Inc. Apparatus for inspecting the exterior finish of containers and associated method
US5553698A (en) * 1994-12-28 1996-09-10 J And J Container Handling Systems Conveyor belt apparatus for bottles
US5853080A (en) * 1994-12-28 1998-12-29 J&J Container Handling Systems, Inc. Conveyor belt apparatus for bottles

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