US3668786A - Facility for heating a product in strip - Google Patents

Facility for heating a product in strip Download PDF

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Publication number
US3668786A
US3668786A US823123A US3668786DA US3668786A US 3668786 A US3668786 A US 3668786A US 823123 A US823123 A US 823123A US 3668786D A US3668786D A US 3668786DA US 3668786 A US3668786 A US 3668786A
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US
United States
Prior art keywords
facility
strip
servomotor
rams
set forth
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
US823123A
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English (en)
Inventor
Jean Jacques Barny
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.)
SOC D'ETUDES ET DE VANTE DE MATERIELS POUR LA FABRICATION ET LE FACONNAGE DU CARTON ONDULE-MARTIN
VANTE DE MATERIELS POUR LA FAB
Original Assignee
VANTE DE MATERIELS POUR LA FAB
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 VANTE DE MATERIELS POUR LA FAB filed Critical VANTE DE MATERIELS POUR LA FAB
Application granted granted Critical
Publication of US3668786A publication Critical patent/US3668786A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/285—Heating or drying equipment

Definitions

  • This invention relates to an improved facility for heating a product in strip form which is moved over a heating surface, the facility being of use more particularly in the heating section of the double-face portion of a corrugated cardboard manufacturing machine.
  • the stuck-together assembly of smooth and curved sheets forming the corrugated cardboard is heated in this part of the machine to dry the sheets and produce permanent adhesion between them.
  • the cardboard strip goes to this end over a number of iron or steel plates which are usually heated by an internal steam flow.
  • An endless belt whose bottom run bears on the cardboard strip keeps the same in engagement with the heating plates.
  • the pressure applied by the belt to the cardboard is amplified by idler rollers disposed freely in slide-ways or on pivoted levers so as to bear on the belt, the latter therefore providing an at least rough distribu tion of their weight over the cardboard strip.
  • each roller experiences its own weight plus the action of at least one pressure-gas-energized ram.
  • FIG. I is a partial simplified view of a double-face heating section in a conventional corrugating machine
  • FIG. 2 shows a similar section but in accordance with the invention
  • FIG. 3 shows simultaneous manual and servomotor control of a ram supply expander
  • FIG. 4 is a block diagram showing how such a servomotor can be controlled
  • FIG. 5 is a view similar to that of FIG. 2 showing solenoid actuated valves for energizing the rams;
  • FIG. 6 is a view similar to that of FIG. 2 showing cam actuated switches for the solenoid valves.
  • FIG. 7 is a view similar to thatof FIG. 2 showing double acting rams and two way solenoid valves for energizing the rams.
  • a conventional heating section of a corr ugating machine comprises a bearing frame in the form of longitudinal members I and ground support legs 2. Disposed transversely on members 1 are heating plates 3 to which piping (not shown) for the supply of a hot fluid, such as steam, is connected.
  • a corrugated cardboard strip 4 is moved in the direction indicated by an arrow 5 by elements disposed downstream of the zone shown and rests on plates 3.
  • the endless belt 6 is shown in FIG. 1 and passes over driving drum 50 and drum 5] as is well known in the art; the width of belt 6 is equal to or greater than the width of the strip 4.
  • Idler rollers 7, whose length is equal to or slightly greater than the width of the belt 6, are mounted at each end to rotate freely, in the ends of rods 8 connected by way of a pivot 9 to an auxiliary longitudinal member 10.
  • presser rollers 11 are disposed at the end of links 12 pivoted by way of pivots 13 on a top auxiliary longitudinal member 14.
  • Each of pneumatic rams 15 has its casing articulated to member 14 by way of a pivot 16 and its rod connected by way of a pivot 17 to the respective links 12 and is energized through a flexible pipe 18 connected to a general air line 19.
  • Valve 20 to which compressed air is supplied through a line 21 energizes the ram distribution line 19 at a controlled pressure.
  • Valve 20 has an adjusting rod which is connected to a combined servomotor and reducer 22 via gearwheel 23, an annulus 24 and satellites 25-27 of a planetary gear system, and gearwheels 28, 29.
  • Satellite carrier arm 30 is rigidly secured to a manual adjustment spindle 31 having a calibrated dial 32.
  • Spindle 31 has known locking means (not shown) for immobilizing the arm 30 when the same is not being used for manual adjustment.
  • a potentiometer 33 is disposed on the same shaft as the gearwheel 28.
  • the servomotor 22 is connected to a power supply 40 via a reversing contactor 41.
  • the strip 4 is driven by a motor 42 having mounted on the end of its shaft a tachometer dynamo 43 which delivers a voltage proportional to the speed of strip movement.
  • the two voltages produced by the dynamo 43 and potentiometer 33 are input to an electronic voltage comparator 44.
  • comparator 44 outputs a signal which operates contactor 41 one way or the other, either via amplifier 45 and relay 47 or via amplifier 46 and relay 48.
  • the range of pressure variation in the rams 15 can be altered by means of the manual control to cope with different board qualities and strengths.
  • Action on the spindle 31 causes, via the satellites 26, an alteration of the initial compressed air pressure delivered by the valve 20 without altering the position of the potentiometer 33.
  • a solenoid valve 52 (FIG. 5) can be provided in the supply line to each group of two rams associated with a roller so that the rams act only on some of the rollers.
  • the number of rollers affected is selected by manual operation of switches 53 controlling the energizing solenoid valves. If required, the number of rollers with and without ram loading can be varied automatically by the switches of the solenoid valves being operated by an appropriately shaped cam 54 (FIGS. 3 and 6) driven by a servomotor of the same kind as used for the valve, such servomotor being connected to a similar strip-speed-dependent regulating facility.
  • a facility for heating a product in strip form comprising a heating surface over which thestrip is movable and means for maintaining the strip in contact therewith, said means including a continuous belt loaded by evenly spaced idler rollers, each roller exerting on said belt its own weight and at least one I pressure-gas-energized ram connected to each of said rollers to increase the load on said belt, said rams being pressurefluid-energized, at least one valve controlling the fluid pressure to said rams, a servomotor controlling said valve and regulating means controlling said servomotor receiving information relating-to the speed of strip movement and information relating to the position of said servomotor.
  • said regulating means including a voltage comparator receiving a first voltage, a tachometer dynamo driven at a speed proportional to strip speed providing said first voltage, and receiving a second voltage, and a potentiometer associated with the position of said servomotor providing said second voltage.
  • valve including a manual control facility independent of the servomotor control, the two controls being usable simultaneously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Drying Of Solid Materials (AREA)
  • Making Paper Articles (AREA)
US823123A 1968-05-10 1969-05-08 Facility for heating a product in strip Expired - Lifetime US3668786A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR151405 1968-05-10

Publications (1)

Publication Number Publication Date
US3668786A true US3668786A (en) 1972-06-13

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ID=8650097

Family Applications (1)

Application Number Title Priority Date Filing Date
US823123A Expired - Lifetime US3668786A (en) 1968-05-10 1969-05-08 Facility for heating a product in strip

Country Status (4)

Country Link
US (1) US3668786A (de)
DE (2) DE1923858A1 (de)
FR (1) FR1592115A (de)
GB (1) GB1260944A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893245A (en) * 1972-03-28 1975-07-08 Canon Kk Photocopying apparatus
US4164083A (en) * 1977-12-07 1979-08-14 Pennsylvania Sewing Research Corp. Belt-conveyor ironing machine
US4202721A (en) * 1978-01-26 1980-05-13 St. Regis Paper Company Heat sealing mechanism
WO1988002016A1 (en) * 1986-09-10 1988-03-24 Astechnologies, Inc. Method and apparatus for steam lamination
US4923555A (en) * 1986-09-10 1990-05-08 Astechnologies, Inc. Apparatus for steam lamination
US5005473A (en) * 1988-09-26 1991-04-09 Mitsubishi Jukogyo Kabushiki Kaisha Press roll elevator in a double facer
US8177415B1 (en) * 2006-07-24 2012-05-15 Tarpaulin.Com, Inc. System for agitating pouched products

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1513564A (en) * 1975-03-08 1978-06-07 Simon Container Mach Ltd Corrugating machinery
DE69404598T2 (de) * 1993-10-19 1998-01-08 Peters W Maschf Vorrichtung zur Belastung eines Pressbandes in einer Maschine zur Herstellung von Wellpappe
GB2299543B (en) * 1995-04-06 1997-07-16 Scm Container Mach Ltd A heat transfer system
CN112110997B (zh) * 2020-09-18 2022-03-08 河南民兴生物科技股份有限公司 一种蚕丝蛋白制备装置和方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137505A (en) * 1937-06-16 1938-11-22 George H Osgood Machine for making laminated panels
US3110612A (en) * 1960-12-20 1963-11-12 Albemarle Paper Mfg Company Method and apparatus for cast coating paper
US3175300A (en) * 1962-03-12 1965-03-30 Koppers Co Inc Mechanism for controlling the heating of corrugated board by injection of an air film between the board and heating surface
US3489063A (en) * 1966-11-25 1970-01-13 Simca Automobiles Sa Electrical control device for a hydraulic circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2137505A (en) * 1937-06-16 1938-11-22 George H Osgood Machine for making laminated panels
US3110612A (en) * 1960-12-20 1963-11-12 Albemarle Paper Mfg Company Method and apparatus for cast coating paper
US3175300A (en) * 1962-03-12 1965-03-30 Koppers Co Inc Mechanism for controlling the heating of corrugated board by injection of an air film between the board and heating surface
US3489063A (en) * 1966-11-25 1970-01-13 Simca Automobiles Sa Electrical control device for a hydraulic circuit

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893245A (en) * 1972-03-28 1975-07-08 Canon Kk Photocopying apparatus
US4164083A (en) * 1977-12-07 1979-08-14 Pennsylvania Sewing Research Corp. Belt-conveyor ironing machine
US4202721A (en) * 1978-01-26 1980-05-13 St. Regis Paper Company Heat sealing mechanism
WO1988002016A1 (en) * 1986-09-10 1988-03-24 Astechnologies, Inc. Method and apparatus for steam lamination
US4923555A (en) * 1986-09-10 1990-05-08 Astechnologies, Inc. Apparatus for steam lamination
US5005473A (en) * 1988-09-26 1991-04-09 Mitsubishi Jukogyo Kabushiki Kaisha Press roll elevator in a double facer
US8177415B1 (en) * 2006-07-24 2012-05-15 Tarpaulin.Com, Inc. System for agitating pouched products

Also Published As

Publication number Publication date
DE1923858A1 (de) 1970-03-26
GB1260944A (en) 1972-01-19
DE6918965U (de) 1971-05-19
FR1592115A (de) 1970-05-11

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