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    • 1. 发明专利
    • SLIDING DOCTOR APPARATUS
    • JPH1037094A
    • 1998-02-10
    • JP19171796
    • 1996-07-22
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PROBLEM TO BE SOLVED: To provide a doctor apparatus capable of performing doctoring work under a proper pressing force in high efficiency. SOLUTION: A blade holder 5 is supported in a state enabling linear reciprocating motion in the axial direction of a roll by a linear sliding mechanism 4 attached to a doctor back 3 of the doctor apparatus 1. A doctor blade 6 having a narrow width is held by the blade holder 5. The doctor blade 6 is pressed against the outer circumference of a roll and the doctoring of the outer circumference of the roll is performed in the state while sliding the doctor blade 6 in the axial direction of the roll. The application and release of the force, the start and stop of the sliding motion and the setting of the sliding range of the doctor blade 6 can be carried out by a manual operation board 120. Accordingly, the overheating of the edge of the doctor blade 6 can be avoided and the doctoring of exclusively the necessary part of the blade can be performed by this process.
    • 2. 发明专利
    • STRUCTURE FOR SUPPORTING DOCTOR DEVICE
    • JPH08170293A
    • 1996-07-02
    • JP28236094
    • 1994-11-17
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PURPOSE: To simplify a support member-installing work by compacting a support structure for installing the support member supporting the doctor blade-holding member of a doctor device on the side of a frame at an arbitrary rotation angle position. CONSTITUTION: A bearing member 16 for supporting both the ends of a support member 4 supporting the doctor blade-holding part of a doctor device 1 on the side of a frame 7 has an outside sleeve 162 and an inside sleeve 163 rotatably attached into the outside sleeve. A square journal hole is formed in the inside sleeve 163. The journal shafts 15 at both the ends of the support member 4 are formed into square shapes enabling to just fit the journal shafts into the holes. The journal shaft 15 is fit into the hole, and the doctor device is rotated to a proper rotation angle position. Fixing bolts 164, 165 are attached to fix the inside sleeve 163 to the outside sleeve 162. Consequently, the doctor device is supported on the side of the frame 7 in a state fixed to the surface of a roller at a proper angle position.
    • 4. 发明专利
    • DOCTOR DEVICE WITH CAM MECHANISM FOR OPENING
    • JPH08144186A
    • 1996-06-04
    • JP28236294
    • 1994-11-17
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PURPOSE: To provide a doctor device capable of properly performing the opening operation of a doctor blade without using a tube for opening. CONSTITUTION: This doctor device 11 with a cam mechanism for opening is obtained by installing an expandable and contractible pressurizing tube 143, always making cooling water flow therethrough, regulating the feed rate of the cooling water, thereby regulating the extent of expansion of the tube 143, enabling the turning of a doctor blade in the pressurizing direction, enabling the doctor back 14 to turn with journal shafts 141 at both terminals as the center, fixing a cantilever beam type lever 145 on the back surface and bringing the top surface of a free end thereof into contact with a cam face 171 of a disklike eccentric cam 17 attached to a fixed cam shaft 172. When the eccentric cam 17 is rotated with a cam lever 174, the doctor blade 12 can be turned in the opening direction separate from a roll surface S. Since the doctor lever 141 is set at a suitable length, the opening operation can properly be performed.
    • 7. 发明专利
    • SLIDING DOCTOR DEVICE
    • JPH10266088A
    • 1998-10-06
    • JP7288097
    • 1997-03-26
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PROBLEM TO BE SOLVED: To provide a doctor device capable of efficiently doctoring with a proper pressure force. SOLUTION: In this doctor device 1, a blade holder 5 is supported on a linear slide mechanism 4 attached to a doctor back 3 in a linearly reciprocatively movable state in the roll axis direction. A narrow doctor blade 6 is held on a blade holder 5. The doctor 6 is brought into pressure contact with the outer circumferential surface of the roll, and the doctor blade 6 is slid in the roll axis direction in the state to performs the detecting of doctor the outer circumferential surface of the roll. The pressure force of the blade edge can simply be controlled, and a sufficient pressure contact force can be added to the doctor blade. Since the width of the doctor blade 6 is small, the doctor blade 6 can simply be handled, and works for exchanging the doctor blade, etc., are simple.
    • 9. 发明专利
    • OSCILLATING DOCTOR APPARATUS
    • JPH1181184A
    • 1999-03-26
    • JP23755897
    • 1997-09-03
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PROBLEM TO BE SOLVED: To provide an oscillating doctor apparatus capable of efficiently and surely removing foreign matter partially attached to the peripheral surface of a roll. SOLUTION: This oscillating doctor apparatus 1 is constituted so as to carry out doctoring of the peripheral surface 10A of a roll by oscillating a doctor blade 6 having narrow width into the axial direction in a pressure contact state to the peripheral surface 10A of the roll. The oscillating doctor apparatus 1 carries out doctoring of the peripheral surface of the roll by two action modes among a first action mode for carrying out doctoring over whole width of the peripheral surface 10A of the roll and a second action mode for intensively doctoring a part in which attachment of foreign matter is detected by a detector for detecting the attachment of the foreign matter and a third action mode for intensively doctoring both end parts of a passing sheet which is liable to cause the occurrence of foreign matter in the peripheral face 10A of the roll on action mode which is a combination of these action modes. Consequently, doctoring over whole width of the peripheral surface of the roll can be achieved, and further, foreign matter partially attached can efficiently and surely be removed by the doctoring.
    • 10. 发明专利
    • DOCTOR DEVICE
    • JPH1121783A
    • 1999-01-26
    • JP17538797
    • 1997-07-01
    • SEISAKUSHO KK DR
    • HAGITA SHUNICHI
    • D21G3/00
    • PROBLEM TO BE SOLVED: To provide a tube pressurizing type doctor device capable of avoiding unfavorable effects of entry of a liquid containing a scraped waste, etc., into the turning central shaft of a doctor blade and inhibition of the smooth turning, etc., of the doctor blade. SOLUTION: This doctor device 51 is obtained by dividing an interval between the surface 52c of a doctor blade 52 for gathering a paper scrap, etc., scraped off with a doctor blade 52 and a turning central shaft 533 of the doctor blade 52 with two plates of the doctor blade 52 and a supporting plate 531: Thereby, unfavorable effects such as the entry of a liquid containing the paper scrap, etc., scraped off with the doctor blade 52 into the side of the turning central shaft 533, inhibition of the smooth turning operations of the doctor blade 52 and inability to press the blade tip 52a of the doctor blade 52 to the roll surface 101 under a suitable pressure contact force.