US3580018A - Machine for coiling elongated striplike material - Google Patents

Machine for coiling elongated striplike material Download PDF

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Publication number
US3580018A
US3580018A US736852A US3580018DA US3580018A US 3580018 A US3580018 A US 3580018A US 736852 A US736852 A US 736852A US 3580018D A US3580018D A US 3580018DA US 3580018 A US3580018 A US 3580018A
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US
United States
Prior art keywords
mandrel
coil
machine
gripper mechanism
grippers
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
US736852A
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English (en)
Inventor
Hans Gott
Josef Ritter
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.)
EVG Entwicklungs und Verwertungs GmbH
Original Assignee
EVG Entwicklungs und Verwertungs GmbH
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
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Application filed by EVG Entwicklungs und Verwertungs GmbH filed Critical EVG Entwicklungs und Verwertungs GmbH
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Publication of US3580018A publication Critical patent/US3580018A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/02—Winding-up or coiling
    • B21C47/04—Winding-up or coiling on or in reels or drums, without using a moving guide
    • B21C47/06—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum
    • B21C47/063—Winding-up or coiling on or in reels or drums, without using a moving guide with loaded rollers, bolts, or equivalent means holding the material on the reel or drum with pressure rollers only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/32—Tongs or gripping means specially adapted for reeling operations
    • B21C47/326—Devices for pressing the end of the material being wound against the cylindrical wall of the reel or bobbin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F33/00—Tools or devices specially designed for handling or processing wire fabrics or the like
    • B21F33/002—Coiling or packing wire network
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/04—Interior-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4172—Handling web roll by circumferential portion, e.g. rolling on circumference
    • B65H2301/41722—Handling web roll by circumferential portion, e.g. rolling on circumference by acting on outer surface, e.g. gripping or clamping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/42—Supports for rolls fully removable from the handling machine
    • B65H2405/422—Trolley, cart, i.e. support movable on floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/184—Wound packages
    • B65H2701/1846—Parts concerned

Definitions

  • Marmorek ABSTRACT A machine for coiling elongated striplike material such as welded mesh reinforcement of the kind in which the material is coiled on a mandrel from which the completed coil is removed after the coil and mandrel have been separated by axial movement relative to each other is provided with a gripper mechanism for gripping the coil and this mechanism is arranged to travel between a first position near the mandrel and a second position away from the mandrel.
  • the gripper mechanism has at least two grippers capable of pivoting inwards from opposite sides into contact with the outer surface of a coil mounted on the mandrel so that they thrust against the surface of the coil and hold it together.
  • the gripper mechanism is arranged so that during its movement from the first position into the second position, the grippers continue to hold the coil firmly together and prevent it from uncoiling.
  • MACHINE FOlR COILING ELONGATED STRIPLIKE MATERIAL Elongated striplike material, for example wire mesh reinforcement formed of crossed wires which are welded or bonded together at the crossing points is usually rolled up into coils in order to save space during storage and transport.
  • the coiling is done on automatic coiling machines which roll up the striplike material as it comes from the manufacturing installation, which in the case of mesh reinforcement is usually a mesh-welding machine. As soon as a specified length of mesh has been coiled, the coiling machine automatically stops. The length of mesh coiled before the machine stops can be adjusted by automatic controls. For this purpose a counting device is coupled to the coiling machine and this for example counts the transverse wires of the mesh and actuates a switching-off device when a specified number of transverse wires, corresponding to the desired mesh length, has been counted.
  • the present coiling machines have rollers which thrust against the outer surface of the coiled material during the coiling process.
  • the strip material must be thrust inwards towards a mandrel on whichthe coil is formed so that the greatest possible quantity of strip material can be coiled into the smallest possible volume.
  • these rollers continue to hold the coil together until it is bound. The binding is usually done by hand.
  • the binding process takes up a considerable amount of time, and during this time the coil of strip material is still mounted on the coiling mandrel. Consequently either the manufacturing machine has to be shut down till the binding has been completed, or if it continues operating the produced strip of material must be stored in an intermediate storage device until the completed coil has been removed from the coiling mandrel. Furthermore the coiling machine must operate considerably faster than the manufacturing machine, so as to clear the intermediate storage device ready for receiving further material. This method does allow throughput to be increased, but at the cost of a more extensive installation, and the intermediate storage device occupies valuable space.
  • the coil moves along sideways, that is to say' in the axial direction of the coiling mandrel.
  • the movement of the coil is guided by the mandrel, and by the thrust roller, which extends parallel to the mandrel.
  • the tail end of the coil is prevented from uncoiling, due to the resilient nature of the material, by the thrust appliedto the surface of the coil by the thrust roller.
  • the mandrel becomes free to receive further strip material only after the last metal band used for binding the coil has been joined together at its ends.
  • the object of the present invention is to provide a machine for coiling elongated striplike material, particularly wire mesh, which allows the manufacturing machine to continue operating during the binding of the previously completed coil, without it being necessary .to use an intermediate storage device, which occupies a great deal of space.
  • a gripper mechanism for gripping the core in such a machine in which the elongated striplike material is coiled on a coiling mandrel from which the completed coil is removed after the coil and mandrel have been separated by moving axially relative to each other, we provide a gripper mechanism for gripping the core and this is arranged to travel between a first position near the mandrel and a second position away from the mandrel, the gripper mechanism having at least two grippers capable of pivoting inwards from opposite sides into contact with the outer surface of a coil mounted on the mandrel, so that they thrust against the surface of the coil, holding it together, the arrangement being such that during the movement of the gripper mechanism from the first position into the second position the grippers continue to hold the coil firmly together, preventing it from uncoiling.
  • the machine operates as follows:
  • the coil As soon as the coil, would tightly on the coiling mandrel, has acquired the specified length, it is gripped from outside by the gripper mechanism to prevent it from inadvertently uncoiling. The strip is then cut ofi and finally the coil is removed from the mandrel whilst it is still held by the gripper mechanism.
  • the mandrel When the mandrel is cantilever supported at one end by a stationary main bearing, the coil can be removed from the mandrel by withdrawing it axially, the gripper mechanism traveling axially with the coil in a direction parallel to the mandrel axis.
  • the mandrel can if desired consist of two opposite stub mandrels, which project inwards only a short distance from the sides of the coil. To release the coil the stub mandrels retract outwards in opposite directions, allowing the coil and the gripper mechanism to be withdrawn in a direction at right angles to the mandrel axis.
  • FIG. 1 is a side elevation
  • FIG. 2 is a plan
  • FIGS. 3 and 4 are diagrammatic side views showing alternative gripper mechanism which prevent the coiled-up str'ip from uncoiling prematurely;
  • FIG. 5 is a side elevation
  • FIG. 6 is a plan view.
  • a strip of mesh 1 issuing from a meshwelding machine passes along underneath the coiling machine and then forms a loop in which the strip reverses its direction.
  • This method of feeding the strip to the coiling machine has the advantage that the machine does not have to operate precisely in step with the production machine, for example the meshwelding machine.
  • the loop is allowed to vary in length within limits, controlled by two limit switches 18 and 18a.
  • the two switches 18 and 180 control the size of the loop as follows: As soon as the loop has become so large that it touches the switch 18a, the coiling machine is started up, and continues to operate until the loop has decreased in size enough to touch the switch 18, whereupon the coiling machine stops.
  • the mesh strip passes under a guide roller 2 and then over a control drum 3 which is capable of driving the strip forward towards the coiling machine, and also capable of acting as a brake to restrain its forward movement.
  • the control drum 3 consists of an array of wheels all fixed to the same shaft and each equipped with peripheral gripper teeth. However instead of these toothed wheels there can if desired be used other devices, which must however be capable of propelling the mesh strip forwards, on the one hand, and also braking its forward movement.
  • the mesh strip passes between a pair of shearing blades 4, 4a of a guillotine, the grating ribbon then passing over a guide roller 5 and between two guide rails 17, 17a to a mandrel 6 of the coiling machine.
  • the guide rails 17, 17a are shown in an open position.
  • the mandrel 6 is cantilever mounted in a bearing at one end and has a movable support at its other end.
  • the guide rails 17, 17a are brought together and can be adjusted to lead the beginning of the mesh strip into one of two anchoring slots 7, 7a in the coiling mandrel 6.
  • the mandrel has two slots to allow the mesh strip to be reeled up with the transverse wires either on its outside or its inside face.
  • the hydraulic motor begins to rotate the shaft of the control drum 3, so that the mesh strip is advanced between the rails 17, 17a and pushed into one of the two slots 7 or 7a in the mandrel 6.
  • the anchoring slots 7, 7a are equipped with grippers of the known kind which catch the first transverse wire and hold it in place in such a way that it can only move sideways out of the slot that is to say parallel to the axis of the mandrel 6.
  • the motor of the control drum 3 now functions, during the coiling operation, as an oil pump, pumping against an adjustable resistance.
  • the coil of mesh strip is held densely packed together by braking the advancing movement of the strip, rather than by means of thrusting devices.
  • a further advantage of the arrangement of feeding and braking devices described here is that it is not necessary to provide devices, such as conveying hooks or the like, together with their drives, for feeding the mesh strip to the coiling machine.
  • the grippers 10, 11, 11a move into contact with the outer surface of the coil to prevent the coiled-up strip from uncoiling.
  • the grippers 10, 11, 11a can example be moved inwards by means of fluidpressure cylinders 9 and 9a. It is now possible for the guillotine 4, 4a to cut off the mesh strip without the coil coming unwound, it being prevented from doing so by the grippers.
  • the upper gripper 10 is equipped with a rocker 12 on the two ends of which there are mounted rods or tubes 13, 13a, which extend over the axial length of the coil.
  • the mandrel then rotates through a further angle, enough to bring the severed end of the mesh strip between the two rods or tubes 13, 13a, which hold the coil firmly together.
  • the movable support 15, which has severed during the coiling operation as an end support for one end of the mandrel 6, pivots downwards to come clear of the path of the coil, which is about to move transversely away from the coiling machine.
  • a suitably driven ejector plate 16 then pushes the coil sideways to the left, as seen in FIG.
  • the grippers 10, 11 and 11a open up. In this movement the lower grippers 11 and 110, which have been supporting the coil from underneath, lower it down on to inclined delivery rails 19, down which the coil rolls under gravity, leaving the coiling shop. Finally, the grippers are returned by hand, or by means of suitable mechanical drives, to their initial positions around the new coil of mesh strip which is by this time already partly formed on the coiling machine.
  • the completed coil and the grippers are shifted transversely, with respect to the direction of advance of the mesh strip.
  • the system can if desired be so arranged that the completed coil leaves the coiling machine in the direction of advance of the mesh strip.
  • This arrangement is recommended in particular in the case of a coiling machine in which there are two stub mandrels instead of a through mandrel, each stub mandrel projecting a short distance inwards at the side of the coil. In this case it is not necessary to slide the coil sideways off the mandrel.
  • the two stubs are merely separated far enough to allow the coil to be removed in the direction of advance of the mesh strip.
  • a machine for coiling elongated striplike material of the kind comprising a coiling mandrel, means for coiling said material on said mandrel, means for bringing about relative axial movement between a coil of material on said mandrel and said mandrel to separate said mandrel from said coil and means for removing said coil from said mandrel after said separation, the improvement comprising a gripper mechanism for gripping said coil on said mandrel, and means mounting said gripper mechanism for translatory movement, all individual grippers remaining stationary with regard to one another between a first position near said mandrel and a second position away from said mandrel, said gripper mechanism including at least two grippers, means pivotally mounting said grippers for inward movement from opposite sides of said coil into contact with the outer surface of said coil mounted on said mandrel whereby said grippers thrust against the surface of said coil holding it together, said grippers continuing to thrust against the surface of said coil during said translatory movement of said gripper mechanism from said first position to said second position
  • a machine as claimed in claim 2 further comprising a sliding ejector plate for sliding said coil off said mandrel by thrusting against one end of said coil and means mounting said sliding plate for traveling movement from one position near said hearing at said one end of said mandrel to a second position beyond the other end of said mandrel.
  • a machine as claimed in claim 2 further comprising a movable support for supporting the other end of said mandrel and means mounting said support for pivotal movement whereby said support can move away from the path of said coil and said gripper mechanism between said first and said second positions.
  • said gripper mechanism comprises at least two arms, means mounting each of said arms for pivoting movement on a movable frame, said pivoting movement taking place about axes extending parallel to the axis of said mandrel and fluid-pressure cylinder means coupling said arms together in said pivoting movement.
  • a machine as claimed in-claim 8 further comprising a coiling motor for driving said mandrel and limit switches for actuating said control device and said motor in dependence upon the length of said loop.
  • a machine as claimed in claim 8 further comprising guide means between said guillotine and said mandrel, and means for opening and closing said guide means for introducing the beginning of said elongated striplike material into a holding slot in said mandrel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Wire Processing (AREA)
  • Winding Of Webs (AREA)
US736852A 1967-06-16 1968-06-13 Machine for coiling elongated striplike material Expired - Lifetime US3580018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT563867A AT276028B (de) 1967-06-16 1967-06-16 Vorrichtung zum Aufwickeln von bahnförmigem Material, insbesondere von Drahtgitterbahnen

Publications (1)

Publication Number Publication Date
US3580018A true US3580018A (en) 1971-05-25

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Application Number Title Priority Date Filing Date
US736852A Expired - Lifetime US3580018A (en) 1967-06-16 1968-06-13 Machine for coiling elongated striplike material

Country Status (8)

Country Link
US (1) US3580018A (en:Method)
AT (1) AT276028B (en:Method)
BE (1) BE716402A (en:Method)
CH (1) CH467715A (en:Method)
DE (1) DE1774416B1 (en:Method)
FR (1) FR1571634A (en:Method)
GB (1) GB1200953A (en:Method)
SE (1) SE335315B (en:Method)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495739A (en) * 1991-09-13 1996-03-05 Beecher; Roy Apparatus for forming scrolls from strip material
US6256862B1 (en) * 1999-07-02 2001-07-10 Mitek Holdings, Inc. Coil advance drive for an apparatus applying plate coils to wooden frames
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
US20100044492A1 (en) * 2004-06-01 2010-02-25 Hongzhuan Zheng Wrapper
CN102172670A (zh) * 2011-02-01 2011-09-07 安阳艾尔旺新能源环境有限公司 复合板材的生产设备和复合钢带
CN112722934A (zh) * 2020-12-22 2021-04-30 真彩文具股份有限公司 一种油画棒卷纸机
US20220080485A1 (en) * 2019-01-17 2022-03-17 Sms Group Gmbh Reversing reel and method of operating a reversing reel
CN115214136A (zh) * 2022-06-20 2022-10-21 江苏威拉里新材料科技有限公司 一种3d打印机用机械上料装置和上料方法
CN119774363A (zh) * 2025-03-11 2025-04-08 江苏吉腾新材料科技有限公司 一种离型膜涂布生产用自动接膜装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT394508B (de) * 1989-10-04 1992-04-27 Evg Entwicklung Verwert Ges Anlage zum herstellen von umreiften drahtgitterrollen
DE4004187C2 (de) * 1990-02-12 1999-03-11 Stop Choc Schwingungstechnik Gmbh & Co Kg Stoßdämpfer-Grundkörper, sowie Verfahren und Vorrichtung zur Herstellung desselben
CN112607474B (zh) * 2020-12-11 2023-01-03 扬州日精电子有限公司 一种实验室快速切断的逆变器薄膜电容制作用卷取机
CN114873338B (zh) * 2022-06-07 2024-05-28 广州九恒条码股份有限公司 一种用于无管芯分切机的芯轴循环放置装置

Citations (5)

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Publication number Priority date Publication date Assignee Title
US993990A (en) * 1909-11-22 1911-05-30 John M Henderson Blocking attachment for strip-rolls.
US2246840A (en) * 1937-11-22 1941-06-24 Bliss E W Co Apparatus for handling metal strip
US2990129A (en) * 1955-01-25 1961-06-27 Davy & United Eng Co Ltd Coiling strip material
US3138191A (en) * 1961-03-06 1964-06-23 Kolk Mfg Co Inc Metal rolling machine
US3423982A (en) * 1965-11-19 1969-01-28 Evg Entwicklung Verwert Ges Coiling machine for coiling wire mesh

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943464C (de) * 1951-03-28 1956-05-24 Bigwood Joshua & Son Ltd Als Spannfutter ausgebildete Einrichtung zum Halten von einer Haspeltrommel abzuschiebender bzw. bereits abgeschobener Bunde
DE1008240B (de) * 1954-12-01 1957-05-16 Schloemann Ag Heb- und senkbarer Bundaufnehmer
DE1136180B (de) * 1960-01-22 1962-09-06 Windmoeller & Hoelscher Vorrichtung zum Erzielen einwandfreier Rollen beim Aufwickeln laufender Bahnen aus Papier, Kunststoffolien od. dgl.
US3098621A (en) * 1961-04-25 1963-07-23 Crompton & Knowles Corp Reel winding apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US993990A (en) * 1909-11-22 1911-05-30 John M Henderson Blocking attachment for strip-rolls.
US2246840A (en) * 1937-11-22 1941-06-24 Bliss E W Co Apparatus for handling metal strip
US2990129A (en) * 1955-01-25 1961-06-27 Davy & United Eng Co Ltd Coiling strip material
US3138191A (en) * 1961-03-06 1964-06-23 Kolk Mfg Co Inc Metal rolling machine
US3423982A (en) * 1965-11-19 1969-01-28 Evg Entwicklung Verwert Ges Coiling machine for coiling wire mesh

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5495739A (en) * 1991-09-13 1996-03-05 Beecher; Roy Apparatus for forming scrolls from strip material
US6256862B1 (en) * 1999-07-02 2001-07-10 Mitek Holdings, Inc. Coil advance drive for an apparatus applying plate coils to wooden frames
US20100044492A1 (en) * 2004-06-01 2010-02-25 Hongzhuan Zheng Wrapper
US20070095006A1 (en) * 2005-11-01 2007-05-03 Konersmann Ronald D Lightweight portable concrete enclosure and associated method of construction
CN102172670A (zh) * 2011-02-01 2011-09-07 安阳艾尔旺新能源环境有限公司 复合板材的生产设备和复合钢带
CN102172670B (zh) * 2011-02-01 2013-05-22 安阳艾尔旺新能源环境有限公司 复合板材的生产设备和复合钢带
US20220080485A1 (en) * 2019-01-17 2022-03-17 Sms Group Gmbh Reversing reel and method of operating a reversing reel
US11801543B2 (en) * 2019-01-17 2023-10-31 Sms Group Gmbh Reversing reel and method of operating a reversing reel
CN112722934A (zh) * 2020-12-22 2021-04-30 真彩文具股份有限公司 一种油画棒卷纸机
CN115214136A (zh) * 2022-06-20 2022-10-21 江苏威拉里新材料科技有限公司 一种3d打印机用机械上料装置和上料方法
CN119774363A (zh) * 2025-03-11 2025-04-08 江苏吉腾新材料科技有限公司 一种离型膜涂布生产用自动接膜装置

Also Published As

Publication number Publication date
GB1200953A (en) 1970-08-05
BE716402A (en:Method) 1968-11-04
DE1774416B1 (de) 1972-01-05
FR1571634A (en:Method) 1969-06-20
SE335315B (en:Method) 1971-05-24
CH467715A (de) 1969-01-31
AT276028B (de) 1969-11-10

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