WO2001041982A2 - Log saw clamp apparatus and method - Google Patents
Log saw clamp apparatus and method Download PDFInfo
- Publication number
- WO2001041982A2 WO2001041982A2 PCT/US2000/042482 US0042482W WO0141982A2 WO 2001041982 A2 WO2001041982 A2 WO 2001041982A2 US 0042482 W US0042482 W US 0042482W WO 0141982 A2 WO0141982 A2 WO 0141982A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- jaw
- clamp
- log
- actuation member
- brace
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D7/02—Means for holding or positioning work with clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/01—Means for holding or positioning work
- B26D2007/013—Means for holding or positioning work the work being tubes, rods or logs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D2210/00—Machines or methods used for cutting special materials
- B26D2210/11—Machines or methods used for cutting special materials for cutting web rolls
Definitions
- This invention relates generally to clamping methods and apparatus. More particularly, the invention relates to clamping methods and apparatus for releasably securing rolls of web material.
- web material refers to any porous or non-porous product which can be found in sheet form, regardless of length or width.
- web material products include foil, film, fabric, cloth, cellophane, wrapping paper, wax paper, etc.
- a log is a rolled product of any web material having any set of dimensions.
- logs are generally sawed into smaller rolls to be used by consumers. Automation of the sawing process allows the manufacturer to achieve satisfactory production rates.
- the sawing process generally involves a cutting blade, a clamp to hold the logs, and an advancing mechanism to move the logs.
- FIG. 1 is a perspective view from below of a log saw clamp assembly according to a preferred embodiment of the present invention
- FIG. 2 is a front elevational view of the log saw clamp assembly shown in FIG. 1, showing the log saw clamp in a fully opened position;
- FIG. 3 is a front elevational view of the log saw clamp assembly shown in FIGS. 1 and 2, showing the log saw clamp in a fully closed position;
- FIG. 4 is a side elevational view of the log saw clamp assembly shown in FIGS. 1-3.
- FIG. 1 A preferred embodiment of the log saw clamp assembly 10 of the present invention is illustrated in FIG. 1 as it would appear in a log saw apparatus.
- the present invention can be used with any conventional log saw device.
- One such log saw device is shown (by way of example only) in the figures.
- logs are conveyed to a cutting position with respect to a log saw blade 14 via conventional log saw guides 22 along which run a chain 48 and a series of log saw fingers 50 having paddles 54 for pushing the logs.
- the chains 48 run around sprockets 46 at the ends of the log saw guides 22 to provide for continuous passage of fingers 50 and paddles 54 along the guides.
- the conveyor assembly 18 defined by the log saw guides 22, the chain 48, the log saw fingers 50, and the paddles 54 is driven in by a conventional device such as a motor controlled by a system controller.
- a conventional device such as a motor controlled by a system controller.
- many systems such as that illustrated in the figures have multiple log lanes (limited at least in part by the size of the log saw blade 14) through which two or more logs pass and are cut simultaneously.
- systems having only one lane are also possible.
- the conveying assemblies for the lanes are typically of the same design and operate in the same manner.
- the particular conveying device employed does not form an important feature of the present invention, and as noted above, other well-known conveying devices and drives can be used with the invention.
- Such alternative conveying devices include without limitation belt and pulley assemblies, slides, conveyor belt assemblies, and the like.
- the jaw 38 can be a one-piece element, the jaw 38 is preferably made of at least two pieces and most preferably three pieces: a jaw mount 74 and one or more jaw members 26 (but most preferably two jaw members 26 as shown in the figures).
- a jaw mount 74 and one or more jaw members 26 but most preferably two jaw members 26 as shown in the figures.
- An important feature of the present invention is the speed with which the jaw members 26 can be removed and replaced as will be discussed in more detail below. Therefore, in preferred embodiments of the present invention, the jaw members 26 are preferably fastened to the jaw mounts 74 by releasable fasteners such as threaded fasteners, pins, clamps, and the like.
- the brace 34 is preferably mounted within the clamp assembly 10 by a number of clamp rods 58 attached to the brace 34.
- the clamp rods 58 can be rigidly attached to the brace 34 in a number of conventional manners, such as by being welded, bolted, press fitted, and the like.
- the clamp rods 58 are more preferably received within apertures 60 in the brace 34, with end portions 66 of the clamp rods 58 having a slightly smaller diameter and being capped or fitted with nuts 70 to hold the brace 34 upon the clamp rods 58.
- conventional springs 42 are fitted upon the end portions 66 of the clamp rods 58 and are located between the brace 34 and a shoulders on the clamp rods 58 to exert a spring- biased force against the brace 34 for limited movement of the brace 34 along the clamp rods 58.
- Other embodiments of the present invention have a spring 42 or other resilient material on both sides of the brace 34. The ability of the brace 34 to move under spring force in this manner is desirable particularly when logs of slightly varying diameter are passed into the log receiving area 110, in which case slightly larger diameter logs will still be admitted into the log receiving area 110.
- One having ordinary skill in the art will appreciate that many other conventional springs and spring-loaded assemblies are capable of providing the biasing spring force just discussed.
- clamp rods 58 can be replaced by a number of other elements capable of supporting the brace 34 in position beside the jaws
- clamp rods 58 can instead be plates, bars, tubes, or other elements extending from the brace 34 to the actuation member 30 and connected to each in a conventional manner.
- such alternative embodiments still preferably have spring- loaded assemblies as described above and most preferably have members which extend through the brace plate and which are spring loaded in a similar manner as the clamp rods 58 of the illustrated preferred embodiment.
- movement of the brace 34 via the clamp rods 58 and movement of the jaws 38 are preferably accomplished by the same element or mechanism. In the preferred embodiment of the present invention illustrated in the figures, this is performed by movement of the actuation members 30.
- the actuation members 30 are preferably plates, panels, or like elements to which are attached the clamp rods 58 and the jaws 38.
- the clamp rods 58 are preferably attached in a conventional manner to opposite sides or edges of the actuation members 30, such as by bolts, screws, or other threaded fasteners, by welding, brazing, gluing, etc. Most preferably, bolts 72 are passed through apertures in the clamp rods 58 and into matching threaded apertures in the actuation members 30.
- the jaws 38 are preferably attached to the actuation members 30 via pins 78 extending from the actuation members 30 and into elongated apertures 82 in the jaws 38 (and more preferably in the ends of the jaw mounts 74 located a distance from the pivots 86).
- the actuation members 30 preferably extend as one-piece elements across adjacent log saw clamp assemblies 10.
- dedicated actuation members 30 for each lane can instead be employed if desired.
- guides similar to those described preferably flank each actuation member in the same or similar manner to the guides 114 flanking the two lane system illustrated in the figures.
- the actuation members 30 can take a number of forms also capable of moving the pins 78 as described for rotating the jaws 38 while translating the clamp rods 58 and the brace 34.
- the actuation members 30 can be plates as illustrated in the figures, rods or bars extending between the guides 114 and mounted for movement in the guides 114, or even fingers secured to and extending laterally from the clamp rods 58 (in which case the fingers can have bent ends which serve the same functions as the pins 78 riding within the elongated apertures 82 of the jaws 38).
- Such alternative elements serve the same functions as the plate-shaped actuation member 30 described above and illustrated in the figures.
- clamp rods 58 need not necessarily be attached to the actuation member 30 for movement therewith, and can instead be mounted to a frame of the system.
- the actuation member 30 can then be a bar located immediately beneath the jaws having a wedge shape or ramped surfaces riding against the jaws 38 in movement of the actuation member 30 to push the jaws 38 apart under spring force as described above.
- the actuation element 30 is adjusted via a turn wheel 90 which preferably has a gauge or counter for a user to identify the diameter at which the log clamp assembly 10 is set.
- the turn wheel 90 is preferably connected to the actuation element 30 through a gearing assembly 94. In this assembly, turning the turn wheel 90 moves the actuation element 30 through the range of positions between a loose position as shown in FIG. 2 and a tight position as shown in FIG. 2.
- the actuation member 30 and attached clamp rods 58 can be moved by one or more electronic, hydraulic, pneumatic, or other actuators attached to the actuation member 30 or clamp rods 58 to exert motive force of the actuation member 30 or clamp rods 58, can be moved by a chain and sprocket or belt and pulley assembly attached to and alongside the actuation member 30 or clamp rods 58, etc. Any of these alternative systems can be operated by hand, but are preferably operated automatically via a controller.
- the clamp assembly 10 can be actuated (i.e., the actuation member 30 and clamp rods 58 moved up or down) very quickly. Therefore, the clamp assembly 10 can be used as a constant pressure clamp or as in intermittent clamp in which a controller rapidly actuates the clamp assembly 10 to open and close with each cut made in a log. Although it is most desirable to employ one gear assembly for moving the actuation members 30 and the clamp rods 58 together, alternative assemblies in which the clamp rods 58 are not secured to the actuation members 30 and/or are movable independently of the actuation members 30 can employ different gear assemblies for the actuation members 30 and the clamp rods 58.
- a gear assembly 94 is shown located only on one side of the actuation member 30. Additional gear assemblies 94 (or other such devices and assemblies capable of moving the actuation member as discussed above) can be connected to other parts of the actuation member 30 and the clamp rods 58 to assist in actuation member movement - particularly for larger or heavier clamp assemblies. Where multiple lane log saw systems are used and have separate and dedicated actuation members 30 for each lane, each lane can be provided with a gear assembly or other moving device or assembly.
- the operator or controller adjusts the clamp assembly 10 to the proper diameter, such as by using the turn wheel 90.
- the jaws 38 When the jaws 38 are rotated and the brace 34 is translated to tighten the clamp assembly 10, the jaws 38 rotate and the brace 34 translates toward a reference line or axis 12 of the clamp 10 running parallel to the log receiving area 110 (see FIGS. 2 and 3).
- the reference line or axis 12 is referred to herein and in the appended claims only for ease of device description, and does not imply that the reference line or axis is necessarily at a center point of the log receiving area or that it necessarily remains stationary (e.g., a set distance from the log saw guides 22) through the adjustment range of the clamp assembly 10.
- the reference line or axis 12 simply refers to a line in the log receiving area 110 which is substantially parallel to logs received in the clamp assembly 10.
- the spring loaded brace 34 applies an adequate force to hold logs entering and being cut within the log receiving area 110 relatively steady, yet enables log advancement.
- the conveyor assembly 18 preferably advances each log into the log receiving area 110 at a nearly constant speed. Because the clamp assembly 10 of the present invention can be adjusted without stopping cutting operations, the clamp assembly 10 can be adjusted between runs of logs having the same diameter or can be adjusted each time a cut made on the log. Also, the clamp assembly 10 can be adjusted to leave a slight clearance between the jaws 38, the brace 34, and the log surface, or can be adjusted to exert a clamping force upon the log during each cut.
- the log saw clamp assembly 10 is preferably oriented in the manner illustrated in the figures.
- the log saw clamp assembly 10 can be arranged in almost any orientation, such as upside down and sideways with reference to the figures.
- the log saw clamp assembly 10 can even be mounted so that logs pass horizontally through the system or vertically. Therefore, the jaws 38 of the assembly 10 need not physically support the logs therein, depending upon the particular orientation of the jaws with respect to ground (i.e., if the assembly 10 were upside down, the brace 34 would support the weight of the log in the assembly).
- a jaw 38 running substantially the entire length of the clamp assembly 10 is preferred, this feature is not a requirement to practice the present invention.
- the wedge-shaped jaw members 26 of the jaws 38 can be replaced by a separate jaw member for each jaw, in which case the front jaws shown in FIGS. 1 and 4 would have a pair or jaw members and the rear jaws would have their own pair of jaw members.
- the two jaws 38 for each clamp assembly 10 of the preferred embodiments would be effectively replaced by two front jaws and two rear jaws for each clamp assembly 10.
- Such a design permits jaws to be used which are much shorter than the elongated jaws illustrated in the figures, but at the cost of somewhat less support and stability for logs within the assembly.
- jaw members 26 having different shapes, such as jaw members having different radii of curvature to better match logs to be run through the assembly.
- the other jaw members 26 can have a variety of different shapes and surfaces to accomplish different tasks or to better suit different types of logs being cut.
- Certain jaw members 26 can be better suited for clamping logs of synthetic material, for exerting higher gripping force against the logs, for handling logs having varying sensitivity to scuffing or damage, or for increased or decreased deformation during clamping if desired.
- brace 34 is preferably secured to the ends of the clamp rods 58 via removable nuts or other conventional removable fastening elements capable of securing the brace 34 in place upon the clamp rods 58.
- the present invention is not limited to embodiments in which two rotatablejaws and one brace act to clamp logs in the log receiving area.
- the two- jaw system is preferred (particularly in light of the conveyor assembly arrangement where paddles 54 extend between the jaws 38 and into the log receiving area 110), other conveyor assembly designs permit different jaw and brace arrangements.
- the brace 34 preferably encircles the log receiving area 110 more fully than shown in the figures, such as three-quarters or two-thirds around the log receiving area 110, with the jaw 38 extending around the remainder of the log receiving area 110.
- the jaws 38 preferably operate via rotation and the brace(s) 34 preferably operate via translation in the manners described above with respect to the preferred embodiments of the present invention. It should also be noted that where multiple jaws 38 are employed, the jaws 38 need not be of the same size or shape, nor need they occupy the same amount of circumference about the log receiving area 110. This is true also for those embodiments of the present invention in which multiple braces or brace sections are used.
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Cutting Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00992828A EP1237684A2 (en) | 1999-12-03 | 2000-12-01 | Log saw clamp apparatus and method |
AU47101/01A AU4710101A (en) | 1999-12-03 | 2000-12-01 | Log saw clamp apparatus and method |
MXPA02005573A MXPA02005573A (en) | 1999-12-03 | 2000-12-01 | Log saw clamp apparatus and method. |
CA002393544A CA2393544A1 (en) | 1999-12-03 | 2000-12-01 | Log saw clamp apparatus and method |
BR0016110-1A BR0016110A (en) | 1999-12-03 | 2000-12-01 | Saw claw apparatus and method for log |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45363599A | 1999-12-03 | 1999-12-03 | |
US09/453,635 | 1999-12-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2001041982A2 true WO2001041982A2 (en) | 2001-06-14 |
WO2001041982A3 WO2001041982A3 (en) | 2002-02-21 |
WO2001041982A9 WO2001041982A9 (en) | 2002-11-28 |
Family
ID=23801418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/042482 WO2001041982A2 (en) | 1999-12-03 | 2000-12-01 | Log saw clamp apparatus and method |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1237684A2 (en) |
AU (1) | AU4710101A (en) |
BR (1) | BR0016110A (en) |
CA (1) | CA2393544A1 (en) |
MX (1) | MXPA02005573A (en) |
WO (1) | WO2001041982A2 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004094117A1 (en) * | 2003-04-24 | 2004-11-04 | Fabio Perini | Apparatus for temporarily holding logs within cutting-off machines |
EP1615753B1 (en) * | 2003-04-24 | 2009-08-19 | Fabio Perini | Apparatus and method for moving logs within cutting-off machines |
ITMI20110221A1 (en) * | 2011-02-15 | 2012-08-16 | Gambini Int Sa | EQUIPMENT FOR CUTTING PAPER LOGS IN A ROLL OF PLURALITY |
ITMI20120155A1 (en) * | 2012-02-06 | 2013-08-07 | Gambini Int Sa | PERFECT EQUIPMENT FOR CUTTING PAPER LOGS IN A ROLL OF PLURALITY |
ITFI20120155A1 (en) * | 2012-07-27 | 2014-01-28 | Perini Fabio Spa | "DEVICE FOR HOLDING AN EXTENSIVE PRODUCT TO CUT AND CUTTING MACHINE INCLUDING THE DEVICE" |
TWI672218B (en) * | 2015-02-03 | 2019-09-21 | 義大利商莫托雷斯紙業責任有限公司 | Device to clamp logs during the cut thereof and sawing machine comprising said device |
CN111482999A (en) * | 2020-04-19 | 2020-08-04 | 陈满平 | Full-automatic cutting component for processing PVC (polyvinyl chloride) pipeline |
CN111805599A (en) * | 2020-07-22 | 2020-10-23 | 广东中深塑科技有限公司 | Flexible automatic continuous production line of double-wall corrugated pipe |
CN112171281A (en) * | 2020-09-23 | 2021-01-05 | 河南中再生科技有限公司 | Steel pipe equidistance cutting chamfer all-in-one |
US11065776B2 (en) | 2016-12-09 | 2021-07-20 | The Procter & Gamble Company | Finished products formed from cutting convolutely wound logs of web materials |
US11584033B2 (en) | 2016-12-09 | 2023-02-21 | The Procter & Gamble Company | Device for transversally cutting convolutely wound logs of web materials |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103085094A (en) * | 2011-10-27 | 2013-05-08 | 常州台源电测材料科技有限公司 | Pipe cutter |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US524330A (en) * | 1894-08-14 | Pipe-vise | ||
US1493831A (en) * | 1922-11-18 | 1924-05-13 | Violette Stanislas | Automatic sawing machine |
US1822501A (en) * | 1930-11-22 | 1931-09-08 | Onsrud Machine Works Inc | Fluid acturated gripping and work-positioning means |
US1930004A (en) * | 1924-04-22 | 1933-10-10 | Martin Air Dog Company | Double hook power dog |
US2064017A (en) * | 1936-09-18 | 1936-12-15 | Leschen & Sons Rope Company A | Apparatus for cutting wire rope, cable, and the like |
US3741517A (en) * | 1971-02-09 | 1973-06-26 | Texaco Inc | Subterranean clamping mechanism for submarine wells |
US4294444A (en) * | 1980-04-29 | 1981-10-13 | World Wide Oil Tools, Inc. | Pipe gripping vise |
US4779503A (en) * | 1987-12-14 | 1988-10-25 | Mitchell Donald H | Portable saw stand |
US4951538A (en) * | 1989-04-07 | 1990-08-28 | Alexander Borzym | Single cut die set |
US5201501A (en) * | 1991-02-18 | 1993-04-13 | Essilor International Compagnie Generale D'optique | Unit for grasping and clamping circular objects |
-
2000
- 2000-12-01 CA CA002393544A patent/CA2393544A1/en not_active Abandoned
- 2000-12-01 BR BR0016110-1A patent/BR0016110A/en not_active Application Discontinuation
- 2000-12-01 MX MXPA02005573A patent/MXPA02005573A/en unknown
- 2000-12-01 WO PCT/US2000/042482 patent/WO2001041982A2/en active Search and Examination
- 2000-12-01 EP EP00992828A patent/EP1237684A2/en not_active Withdrawn
- 2000-12-01 AU AU47101/01A patent/AU4710101A/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US524330A (en) * | 1894-08-14 | Pipe-vise | ||
US1493831A (en) * | 1922-11-18 | 1924-05-13 | Violette Stanislas | Automatic sawing machine |
US1930004A (en) * | 1924-04-22 | 1933-10-10 | Martin Air Dog Company | Double hook power dog |
US1822501A (en) * | 1930-11-22 | 1931-09-08 | Onsrud Machine Works Inc | Fluid acturated gripping and work-positioning means |
US2064017A (en) * | 1936-09-18 | 1936-12-15 | Leschen & Sons Rope Company A | Apparatus for cutting wire rope, cable, and the like |
US3741517A (en) * | 1971-02-09 | 1973-06-26 | Texaco Inc | Subterranean clamping mechanism for submarine wells |
US4294444A (en) * | 1980-04-29 | 1981-10-13 | World Wide Oil Tools, Inc. | Pipe gripping vise |
US4779503A (en) * | 1987-12-14 | 1988-10-25 | Mitchell Donald H | Portable saw stand |
US4951538A (en) * | 1989-04-07 | 1990-08-28 | Alexander Borzym | Single cut die set |
US5201501A (en) * | 1991-02-18 | 1993-04-13 | Essilor International Compagnie Generale D'optique | Unit for grasping and clamping circular objects |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004094117A1 (en) * | 2003-04-24 | 2004-11-04 | Fabio Perini | Apparatus for temporarily holding logs within cutting-off machines |
EP1615753B1 (en) * | 2003-04-24 | 2009-08-19 | Fabio Perini | Apparatus and method for moving logs within cutting-off machines |
US7617852B2 (en) | 2003-04-24 | 2009-11-17 | Fabio Perini | Apparatus for temporarily holding logs within cutting-off machines |
ITMI20110221A1 (en) * | 2011-02-15 | 2012-08-16 | Gambini Int Sa | EQUIPMENT FOR CUTTING PAPER LOGS IN A ROLL OF PLURALITY |
EP2489486A1 (en) * | 2011-02-15 | 2012-08-22 | Gambini International S.A. | Apparatus for cutting paper logs in a plurality of rolls |
US8950306B2 (en) | 2011-02-15 | 2015-02-10 | Gambini International S.A. | Apparatus for cutting paper logs in a plurality of rolls |
ITMI20120155A1 (en) * | 2012-02-06 | 2013-08-07 | Gambini Int Sa | PERFECT EQUIPMENT FOR CUTTING PAPER LOGS IN A ROLL OF PLURALITY |
EP2623279A1 (en) * | 2012-02-06 | 2013-08-07 | Gambini International S.A. | Improved apparatus for cutting paper logs into a plurality of rolls |
WO2014016724A1 (en) * | 2012-07-27 | 2014-01-30 | Fabio Perini S.P.A. | Severing machine for cutting elongated products, comprising a device for holding the elongated products during cut |
ITFI20120155A1 (en) * | 2012-07-27 | 2014-01-28 | Perini Fabio Spa | "DEVICE FOR HOLDING AN EXTENSIVE PRODUCT TO CUT AND CUTTING MACHINE INCLUDING THE DEVICE" |
TWI672218B (en) * | 2015-02-03 | 2019-09-21 | 義大利商莫托雷斯紙業責任有限公司 | Device to clamp logs during the cut thereof and sawing machine comprising said device |
US11065776B2 (en) | 2016-12-09 | 2021-07-20 | The Procter & Gamble Company | Finished products formed from cutting convolutely wound logs of web materials |
US11407134B2 (en) | 2016-12-09 | 2022-08-09 | The Procter & Gamble Company | Finished products formed from cutting convolutely wound logs of web materials |
US11584033B2 (en) | 2016-12-09 | 2023-02-21 | The Procter & Gamble Company | Device for transversally cutting convolutely wound logs of web materials |
CN111482999A (en) * | 2020-04-19 | 2020-08-04 | 陈满平 | Full-automatic cutting component for processing PVC (polyvinyl chloride) pipeline |
CN111805599A (en) * | 2020-07-22 | 2020-10-23 | 广东中深塑科技有限公司 | Flexible automatic continuous production line of double-wall corrugated pipe |
CN112171281A (en) * | 2020-09-23 | 2021-01-05 | 河南中再生科技有限公司 | Steel pipe equidistance cutting chamfer all-in-one |
CN112171281B (en) * | 2020-09-23 | 2021-11-19 | 衡阳鸿大精密制造有限责任公司 | Steel pipe equidistance cutting chamfer all-in-one |
Also Published As
Publication number | Publication date |
---|---|
CA2393544A1 (en) | 2001-06-14 |
EP1237684A2 (en) | 2002-09-11 |
BR0016110A (en) | 2002-12-24 |
MXPA02005573A (en) | 2004-09-10 |
WO2001041982A3 (en) | 2002-02-21 |
AU4710101A (en) | 2001-06-18 |
WO2001041982A9 (en) | 2002-11-28 |
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