Apparatus for laminating webs

• US 6,003,581 A
• Filed: 11/04/1997
• Issued: 12/21/1999
• Est. Priority Date: 03/04/1996
• Status: Expired due to Fees

• Current Assignee: Nippon Petrochemicals Co., Ltd. (ENEOS Holdings, Inc.)
• Original Assignee: Nippon Petrochemicals Co., Ltd. (ENEOS Holdings, Inc.)
• Inventors: Aihara, Kintaro
• Primary Examiner(s): SELLS, JAMES D
• Application Number:
  US08/945,896
• Time in Patent Office: 777 Days
• Field of Search: 156/324, 156/555, 156/580, 156/582, 156/583.1, 100/327, 100/160, 100/176
• US Class Current: 156/555
• CPC Class Codes: B65H 2220/01 indicating an entity as a function of which control, adjustment or change is performed, i.e. input
• CPC Class Codes: B65H 2220/02 indicating an entity which is controlled, adjusted or changed by a control process, i.e. output
• CPC Class Codes: B65H 23/00 Registering, tensioning, smoothing or guiding webs registering articles B65H9/00; in connection with splicing B65H21/00
• CPC Class Codes: B65H 2301/4148 slitting
• CPC Class Codes: B65H 2511/24 Irregularities, e.g. in orientation or skewness
• CPC Class Codes: B65H 2513/10 Speed
• CPC Class Codes: B65H 39/16 Associating two or more webs
• CPC Class Codes: D06H 3/12 Detecting or automatically correcting errors in the position of weft threads in woven fabrics
• CPC Class Codes: Y10T 156/1741 Progressive continuous bonding press [e.g., roll couples]

Abstract

A laminating apparatus (20) for laminating a longitudinal web (19) on a transverse web (28) by maintaining transverse fibrous elements (62) in the transverse direction as much as possible, wherein a skew correction device (39) for correcting the skew of the transverse web in contact with both selvage portions (57, 57) of the transverse web, includes first and second rolls (101, 102) arranged on the side of one selvage portion and the other selvage portion of the transverse web, a common roll (108) arranged on the opposite side of the transverse web with respect to the first and second rolls, and a support means (60) for supporting the first roll, second roll and common roll so as to hold one selvage portion (57) of the transverse web (28) by the first or second roll and an end of the common roll. The travelling speed of at least one selvage portion (57) of the transverse web (28) can be changed.

Claims

1. A laminating apparatus (20) for webs which comprises a laminating roll (29) for laminating a longitudinal web (19) composed of longitudinal fibrous elements (61) arranged almost in parallel to the longitudinal traveling direction and a transverse web (28) composed of selvage portions (57, 57) and transverse fibrous elements (62) arranged almost perpendicularly relative to the traveling direction, and a skew correction device (39) for correcting the skew of the transverse web by bringing it in contact with both the selvage portions of the transverse web which web is fed to said laminating roll at a predetermined traveling speed, said skew correction device including a first roll (101) disposed on a selvage portion on one side of the transverse web and a second roll (102) disposed on the other selvage portion on the other side of the transverse web, a common roll (108) disposed on the opposite side of said transverse web with respect to the first and second rolls, and a support means (60) for supporting the first roll (101), the second roll (102) and the common roll (108) so as to hold one selvage portion of the transverse web by the first roll and an end portion of the common roll or to hold the other selvage portion of the transverse web by the second roll and the other end portion of the common roll, thereby changing the traveling speed of at least one selvage portion (57) of the transverse web (28), said support means (60) being provided with a first moving means which brings said second roll (102) and the other end portion of said common roll (108) close to or apart from each other, said first and second rolls (101, 102) being attached to a common shaft (103) and driven by a common driving means, said first and second moving means comprising, respectively, air cylinders (109, 110) which vertically and movably support both the end portions of the rotary shaft of said common roll (108), said first moving means bringing an end portion of said common roll (108) close to or apart from said first roll (101) and said second moving means bringing the other end portion of said common roll (108) close to or apart from said second roll (102), thereby inclining said common roll (108) maintaining one end portion of said common roll (108) close to said first or second roll (101, 102) and maintaining the other end portion of said common roll (108) apart from the other corresponding second or first roll.

2. A laminating apparatus (20) for webs as claimed in claim 1, wherein said skew correction apparatus (39) is disposed at a position before a cloth guider (56) in the travelling passage for the transverse web (28).

3. A laminating apparatus (20) for webs as claimed in claim 1, wherein said first and second rolls (101, 102) are disposed on the upper side of said selvage portions (57, 57) of the transverse web (28) and the common roll (108) is disposed on the lower side of the transverse web.