US3856617A - Suction cylinder paper forming machine with adjustable doctor knife support structure for controlling paper thickness - Google Patents

Suction cylinder paper forming machine with adjustable doctor knife support structure for controlling paper thickness Download PDF

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Publication number
US3856617A
US3856617A US00373293A US37329373A US3856617A US 3856617 A US3856617 A US 3856617A US 00373293 A US00373293 A US 00373293A US 37329373 A US37329373 A US 37329373A US 3856617 A US3856617 A US 3856617A
Authority
US
United States
Prior art keywords
suction drum
doctor knife
supporting box
periphery
drum
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
US00373293A
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English (en)
Inventor
K Fukuzaki
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
Application granted granted Critical
Publication of US3856617A publication Critical patent/US3856617A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/04—Complete machines for making continuous webs of paper of the cylinder type

Definitions

  • the quality of paper is determined by the suction area of paper material sucking drum, and the suction area is adjusted by a distance between a lip board abutting on the suction drum and a doctor knife above said lip board.
  • the thickness of paper depends on a space between the doctor knife and the periphery of the suction drum.
  • a first object of this invention is to provide a device for enabling adjustment of the position of a doctor knife by an external operation thereof.
  • a third object of this invention is to provide a device for enabling obtaining of a substantially dry paper after travelling past the doctor knife.
  • the numeral 15 designates a tank opened at the upper edge thereof and divided into a compartment A and another compartment B by erecting a partition wall 16 on the bottom wall of said tank 15, said wall 16 being watertightly secured to side walls of the tank 15, the rotary drum 11 being transversely mounted in the compartment A by means of bearings, the peripheral surface of the drum 11 being brought adjacent to but not in contact with the upper edge of the partition wall 16, the drum 11 being rotated counterclockwise at a predetermined speed by a driving means (not shown).
  • the numeral 38 designates a doctor supporting box mounted in the compartment B, the end faces of the box 38 confronting the inner faces of the side walls 27 of the tank 15, the front face of the box 38 confronting the net 13 of the drum 11 being formed in a curved face along the periphery of the drum 11 in a manner that the space between the front face and the net 13 increases from the upper toward the lower portion.
  • a doctor knife 39 abutting the net 13 is mounted on the upper edge of the box 38 so as to be positioned right above the lip 23.
  • the determination of the confronting space between the box 38 and the drum 11 as well as the positioning of said box 38 so as to locate the doctor knife 39 at the most effective angle relative to the pe riphery of the drum 1] is carried out by the following method: the threaded shaft 43 is rotated by turning a handle (not shown) fitted to the square portion 46 thereby causing said shaft 43 to advance or retreat guided by the threaded member 45, as a result of which the bearing 42 connected to the shaft 43 is caused to slide along the rails 41 thereby making it possible to adjust the box 38 away from or toward the periphery of the drum ill by rotation about pin 53 acting as a pivot.
  • a wet paper producing apparatus as claimed in claim ll wherein a cover is provided along the periphery of the suction drum so as to cover substantially half the periphery thereof opposed to the periphery con fronting the supporting box.

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  • Paper (AREA)
US00373293A 1972-07-07 1973-06-25 Suction cylinder paper forming machine with adjustable doctor knife support structure for controlling paper thickness Expired - Lifetime US3856617A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6832672A JPS5620398B2 (enrdf_load_stackoverflow) 1972-07-07 1972-07-07

Publications (1)

Publication Number Publication Date
US3856617A true US3856617A (en) 1974-12-24

Family

ID=13370574

Family Applications (1)

Application Number Title Priority Date Filing Date
US00373293A Expired - Lifetime US3856617A (en) 1972-07-07 1973-06-25 Suction cylinder paper forming machine with adjustable doctor knife support structure for controlling paper thickness

Country Status (2)

Country Link
US (1) US3856617A (enrdf_load_stackoverflow)
JP (1) JPS5620398B2 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4894121A (en) * 1986-08-07 1990-01-16 Ingersoll-Rand Company Pressure pulp washer
US10077530B2 (en) * 2014-07-25 2018-09-18 Bs Co., Ltd. Sheet former

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53110645A (en) * 1977-03-09 1978-09-27 Mitsubishi Chem Ind Ltd Preparation of fiber-reinforced polypropylene
JPS54116601U (enrdf_load_stackoverflow) * 1978-01-30 1979-08-15
FR2435499A1 (fr) * 1978-09-06 1980-04-04 Rhone Poulenc Ind Compositions moulables a base d'un polymere thermoplastique, de fibres de verre et d'un bis-maleimide
JPS57172941A (en) * 1981-04-17 1982-10-25 Matsushita Electric Ind Co Ltd Olefin resin composition
JPS57192440A (en) * 1981-05-20 1982-11-26 Matsushita Electric Ind Co Ltd Polyolefin composition
JPS63154755A (ja) * 1986-12-17 1988-06-28 Mitsuboshi Belting Ltd ガラス繊維強化ポリプロピレン樹脂組成物

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111454A (en) * 1960-09-09 1963-11-19 Gulf States Paper Corp Process and apparatus for forming sheet material from a suspension of solid particles in liquid media
US3388040A (en) * 1965-09-10 1968-06-11 Litma Allan Olavi Device in paper and cardboard forming machines of the suction forming cylinder type
US3401080A (en) * 1965-10-15 1968-09-10 Sandy Hill Corp Cylinder pressure forming paper machine with white water recovery

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3111454A (en) * 1960-09-09 1963-11-19 Gulf States Paper Corp Process and apparatus for forming sheet material from a suspension of solid particles in liquid media
US3388040A (en) * 1965-09-10 1968-06-11 Litma Allan Olavi Device in paper and cardboard forming machines of the suction forming cylinder type
US3401080A (en) * 1965-10-15 1968-09-10 Sandy Hill Corp Cylinder pressure forming paper machine with white water recovery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4894121A (en) * 1986-08-07 1990-01-16 Ingersoll-Rand Company Pressure pulp washer
US10077530B2 (en) * 2014-07-25 2018-09-18 Bs Co., Ltd. Sheet former

Also Published As

Publication number Publication date
JPS4926508A (enrdf_load_stackoverflow) 1974-03-09
JPS5620398B2 (enrdf_load_stackoverflow) 1981-05-13

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