WO2012021637A1 - Compacteur de bobine de fil machine comprenant un trajet d'alimentation de courroie - Google Patents

Compacteur de bobine de fil machine comprenant un trajet d'alimentation de courroie Download PDF

Info

Publication number
WO2012021637A1
WO2012021637A1 PCT/US2011/047275 US2011047275W WO2012021637A1 WO 2012021637 A1 WO2012021637 A1 WO 2012021637A1 US 2011047275 W US2011047275 W US 2011047275W WO 2012021637 A1 WO2012021637 A1 WO 2012021637A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire rod
assembly
rod coil
compacting
coil
Prior art date
Application number
PCT/US2011/047275
Other languages
English (en)
Inventor
Devendra Habib
G. Venkatasiva Reddy
S. Raghavan
Original Assignee
Illinois Tool Works Inc.
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 Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Publication of WO2012021637A1 publication Critical patent/WO2012021637A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/06—Bundling coils of wire or like annular objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, 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
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/20—Means for compressing or compacting bundles prior to bundling

Definitions

  • the present invention relates to the fields of compacting and strapping of steel wire rod coil.
  • the present invention specifically relates to a wire rod coil compactor with strap feeding path for compacting and strapping steel wire rod coil in off-line mode.
  • wire rod coils have been used for many industrial applications, where bundles of such wire rod coils are to be compacted and strapped to save storage space and facilitate easy transportation of these wire rod coils.
  • Various coil compacting and strapping machines have been developed which are capable of compacting and strapping such wire rod coils by applying a strap on the wire rod coil after the wire rod coil is compressed to a specific compression pressure.
  • the coil compacting and strapping machines are used either independently or as a necessary apparatus to a production line.
  • Many of the conventional coil compactors are arranged with main structure to load the wire rod coil. After loading the wire rod coil in the compactor, the press plates are moved simultaneously for compacting the wire rod coil. Then, the wire or strap is fed manually and stretched around the compacted coil, so that the wire rod coils can be strapped by means of strapping tool. The press plates are moved to their initial position, and the compacted and strapped wire rod coil is removed from the compactor for loading it to a storage space and for transportation.
  • An object of the present invention is to provide an assembly for compacting and strapping a wire rod coil in an off-line mode, which facilitates easy feeding and avoiding jamming of strap during strapping of the wire rod coil.
  • Another object of the present invention is to provide an assembly for compacting and strapping a wire rod coil in an off-line mode, which prevents strap breakage due to improper compacting of the coil irrespective of its characteristics.
  • a further object of the present invention is to provide an assembly for compacting and strapping a wire rod coil in an off-line mode, which minimizes time and labor consumption for strapping the wire rod coil.
  • the present invention which achieves the objectives, relates to an assembly for compacting and strapping wire rod coil in an off-line mode, comprising a main frame assembly arranged with a hollow space, a fixed platen at its one end and a guiding path on its upper surface.
  • a cradle roller unit is positioned and placed inside of the hollow space of the main frame assembly for loading the wire rod coil.
  • a movable platen is associated with the main frame assembly in such a way that the movable platen is actuated and guided on the guiding path of the main frame assembly towards the fixed platen for compacting the wire rod coil loaded in the cradle roller unit.
  • a bayonet assembly is placed adjacent to the movable platen and assembled with a set of strap feeding units.
  • the bayonet assembly After compacting the wire rod coil, the bayonet assembly is actuated and guided towards the fixed platen, so that the strap feeding units are guided inside the wire rod coil through the movable platen and mated with a set of strap receiving portions in the fixed platen for strapping the wire rod coil.
  • Such assembly facilitates easy feeding and avoiding jamming of strap during strapping of the wire rod coil, and also prevents strap breakage due to improper compacting of the coil irrespective of its characteristics.
  • the assembly comprises a compacting module associated with the movable platen, so that the movable platen along with the bayonet assembly is actuated at a desired compacting force towards the fixed platen for compacting the loaded wire rod coil.
  • the desired compacting force is determined based on a computation of stiffness and characteristic of the wire rod coil, where the characteristic of wire rod coil comprises diameter, spring action and elasticity.
  • the assembly also comprises a control system attached to the main frame assembly and electrically connected to each component of the assembly for controlling each component of the assembly in accordance with the characteristic of wire rod coil to be strapped.
  • each strap feeding unit of the bayonet assembly is in contact with the movable platen, so that the bayonet assembly is moved along with the movable platen when the movable platen is displaced during compacting of the wire rod coil.
  • Each strap feeding unit is arranged and assembled with a base member and one or more pairs of flap members. The pairs of flap members are flexibly connected to the base member to form an enclosed path for feeding a strap into the strap feeding units.
  • Each pair of flap members is in movable contact with each other in such a way that the strap is disengaged from the flap members when the wire rod coil is strapped and sealed using the pneumatic tool.
  • the assembly further comprises a kicker mechanism and a ramp unit associated with the main frame assembly and positioned in relative to the cradle roller unit. After compacting and strapping the wire rod coil, the kicker mechanism is actuated to transfer the compacted and strapped wire rod coil to the ramp unit.
  • FIG. 1 shows a schematic view of an assembly for compacting and strapping a wire rod coil in an off-line mode, in accordance with an exemplary embodiment of the present invention
  • FIG. 2 illustrates an enlarged view of the assembly depicting insertion of strap feeding units into the wire rod coil, in accordance with an exemplary embodiment of the present invention
  • FIG. 3A illustrates a detailed view of the assembly depicting complete insertion of the strap feeding units with the wire rod coil, in accordance with an exemplary embodiment of the present invention
  • FIG. 3B illustrates a detailed view of the assembly depicting complete insertion of the strap feeding units without the wire rod coil, in accordance with an exemplary embodiment of the present invention
  • FIG. 4 illustrates a schematic view of the assembly depicting strapping of the wire rod coil, in accordance with an exemplary embodiment of the present invention
  • FIG. 5 illustrates a detailed view of a bayonet assembly arranged with the strap feeding units, in accordance with an exemplary embodiment of the present invention
  • FIG. 6 illustrates a detailed view of the strap feeding units, in accordance with an exemplary embodiment of the present invention
  • FIG. 7 illustrates a configuration of a control system of the coil compacting and strapping assembly, in accordance with an exemplary embodiment of the present invention.
  • FIGS. 8A-8F respectively illustrate sequence of operation for compacting and strapping the wire rod coil in the off-line mode, in accordance with an exemplary embodiment of the present invention.
  • FIG. 1 a schematic view of an assembly for compacting and strapping a wire rod coil (100) in an off-line mode is illustrated, in accordance with an exemplary embodiment of the present invention.
  • the present assembly is specially designed for compacting and strapping the wire rod coil (100), especially in the off-line mode.
  • the wire rod coil (100) includes, but is not limited to steel coil and aluminum coil.
  • the compacting and strapping assembly can also be called as coil compactor.
  • the assembly can be referred as coil compactor only for the purpose of explanation.
  • the below table shows the specification of the present coil compactor.
  • the coil compactor of the present invention is capable to allow minimum wire diameter of about 0 6 mm, maximum wire diameter of about 0 22 mm, maximum mass of about 2000 kg and power consumption of about 45 KW.
  • the above information may vary depending of application.
  • the coil compactor of the present invention is assembled with a main frame assembly (10) with a fixed platen (12), a cradle roller unit (20), a movable platen (30), a bayonet assembly (40) with a set of strap feeding units (42) and a control system (700).
  • the main frame assembly (10) is fixed to the ground using fasteners for supporting the wire rod coil (100).
  • the main frame assembly (10) acts as a mounting structure for the coil compactor to withstand the entire load of the coil compactor along with the wire rod coil (100).
  • the main frame assembly (10) is arranged with the fixed platen (12) at its one end and a guiding path (14) on its top surface throughout its length.
  • the main frame assembly (10) is configured as a rectangular box type body having a hollow space in its center, so that the cradle roller unit (20) can be positioned and placed inside of the hollow space in the main frame assembly (10).
  • the wire rod coil (100) can be loaded on the cradle roller unit (20) using an Electrical Overhead Travelling (EOT) crane or fork lift.
  • EOT Electrical Overhead Travelling
  • the movable platen (30) is associated and placed on the main frame assembly (10) in such a way that the movable platen (30) is capable of being displaced and guided on the guiding path (14) of the main frame assembly (10).
  • the movement of movable platen (30) is carried out with respect to the fixed platen (12) of the main frame assembly (10).
  • the movable platen (30) is associated with the guiding path (14) of the main frame assembly (10) with the help of winkle bearings (32), which facilitates smooth movement of the movable platen (30).
  • the movable platen (30) is connected to a hydraulic cylinder (70), which actuates the movable platen (30) towards the fixed platen (12) for compacting the wire rod coil (100) loaded on the cradle roller unit (20).
  • the wire rod coil (100) can be compacted using the hydraulic cylinder (70) by applying a force of max 25 tonnes (variable) through the movable platen (30).
  • the bayonet assembly (40) is placed adjacent to the movable platen (30), in particular behind the movable platen (30).
  • the bayonet assembly (40) is coupled to an actuating unit (80) in such a way that the bayonet assembly (40) can be moved and guided by the actuating unit (80).
  • the actuating unit (80) includes, but is not limited to motor and hydraulic cylinder.
  • the bayonet assembly (40) and the hydraulic cylinder (70) for the movable platen (30) are mounted on an auxiliary frame assembly (60), which acts as a mounting structure to withstand the entire load of the bayonet assembly (40) and the hydraulic cylinder (70) for the movable platen (30).
  • the bayonet assembly (40) is formed and assembled with a plurality of strap feeding units (42), preferably four strap feeding units (42) that are organized in parallel and opposite to each other.
  • the number of strap feeding units (42) can be varied depending upon the requirement of number of straps (101) to be applied on the wire rod coil.
  • Each strap feeding unit (42) is in contact with the movable platen (30), which helps proper guiding and directing of these strap feeding units (42) into the inner circumference of the wire rod coil (100) to be strapped. Since the strap feeding units (42) of the bayonet assembly (40) is in contact with the movable platen (30), the bayonet assembly (40) can be moved along with the movable platen (30) while displacing the movable platen (30) during compacting of the wire rod coil (100).
  • the main frame assembly (10) is associated with a ramp unit (50) having a stopper (52) at its end, where the ramp unit (50) is configured to receive the strapped wire rod coil (100), where the stopper (52) of the ramp unit (50) holds the strapped wire rod coil (100).
  • the compacted and strapped coil (100) can be unloaded from the ramp unit (50) by the EOT Crane or fork lift.
  • FIG. 2 illustrates an enlarged view of the assembly depicting insertion of strap feeding units (42) into the wire rod coil (100), in accordance with an exemplary embodiment of the present invention.
  • FIG. 3A illustrates a detailed view of the assembly depicting complete insertion of the strap feeding units (42) with the wire rod coil (100), in accordance with an exemplary embodiment of the present invention.
  • the bayonet assembly (40) can be actuated towards the fixed platen (12) by the actuating unit (80), so that the strap feeding units (42) in the bayonet assembly (40) are guided inside of the wire rod coil (100) through the movable platen (30).
  • the strap feeding units (42) are guided and moved inside the hollow region of the wire rod coil (100) until the strap feeding units (42) are mated or coupled with strap receiving portions (12a) in the fixed platen (12).
  • the number of strap receiving portions (12a) in the fixed platen (12) can be defined based on the number of strap feeding units (42) used in the coil compactor.
  • FIG. 3B where the wire rod coil (100) is hidden, which illustrates a detailed view of the assembly depicting complete insertion of the strap feeding units (42) without the wire rod coil (100), in accordance with an exemplary embodiment of the present invention.
  • FIG. 4 illustrates a schematic view of the assembly depicting strapping of the wire rod coil (100), in accordance with an exemplary embodiment of the present invention.
  • FIG. 5 illustrates a detailed view of the bayonet assembly (40) arranged with the strap feeding units (42), in accordance with an exemplary embodiment of the present invention.
  • Each strap feeding unit (42) is supported and mounted on a support member (44) of the bayonet assembly (40), where the support member (44) is configured in an I- shaped structure.
  • Each strap feeding unit (42) is arranged and assembled with a base member (42a) and pairs of flap members (42b), where the base member (42a) is attached to the support member (44) of the bayonet assembly (40).
  • Each pair of flap members (42b) of the strap feeding unit (42) is connected to the base member (42a) at its edges, which forms a flexible enclosed path for feeding the strap (101) into it.
  • the strap feeding units (42) are composed of an optional extending member (42c) at its end which is closer to the moveable platen (30), where the extending member (42c) enables easy insertion and feeding of the strap (101) into the strap feeding units (42).
  • FIG. 6 a detailed view of the strap feeding units (42) is illustrated, in accordance with an exemplary embodiment of the present invention.
  • the pairs of flap members (42b) are in movable and flexible contact with each other at its one end, so that the strap (101) can be disengaged from the feeding units (42) while strapping the wire rod coil (100) using the pneumatic tool.
  • these pairs of flap members (42b) are moving away from each other while pulling the strap (101) using the pneumatic tool, so that the strap (101) is disengaged from the flap members (42b) to get in contact with the inner circumference of the wire rod coil (100), as shown in FIG. 6.
  • the coil compactor also comprises a kicker mechanism (600) assembled with a kicker (602) and a hydraulic cylinder (601).
  • the kicker mechanism (600) is associated and accommodated in the main frame assembly (10) of the coil compactor.
  • the kicker (602) is activated by the hydraulic cylinder (601) to push and transfer the strapped wire rod coil (100) to the ramp unit (50).
  • the compacted and strapped coil (100) can be unloaded from the ramp unit (50) by the EOT Crane/fork lift.
  • FIG. 7 illustrates a configuration of a control system (700) of the coil compacting and strapping assembly, in accordance with an exemplary embodiment of the present invention.
  • the coil compactor is also arranged with a control system (700) that is attached to the main frame assembly (10).
  • the control system (700) is electrically connected to each component of the coil compactor.
  • control system (700) is associated with the hydraulic cylinders (70, 602) and the motors (80) used in the coil compactor for controlling operation of the movable platen (30), the bayonet assembly (40), the strap feeding units (42) and the kicker mechanism (600).
  • the control system (700) is composed of a programmable logic controller (PLC) (710), a human machine interface (HMI) (720), a hydraulic power pack unit (730) and a set of variable- frequency drives (VFD) (740).
  • PLC programmable logic controller
  • HMI human machine interface
  • VFD variable- frequency drives
  • the HMI (720) allows the operator to feed control parameters such as wire rod diameter.
  • the HMI (720) can be connected to the programmable logic controller (PLC) (710), which outputs an analog signal (voltage) based on the control parameters provided in the HMI (720).
  • the analog signal can be varied from 0 to 10 VDC, where each analog signal corresponds to a preset coil characteristic such as wire rod coil diameter, spring action and elasticity of coil material.
  • the below table shows different voltages generated by the PLC (710) based on different wire rod diameters.
  • the analog signal is fed to the amplifier card of the proportional valve of the hydraulic power pack unit (730).
  • the proportional valve converts the electrical signal to proportional pressure output signal for the hydraulic power pack unit (730), which applies appropriate compacting force through the hydraulic cylinder (70) to the wire rod coil (100) based on the coil characteristics with the help of movable platen (30).
  • the VFDs (740) are associated the motors (80) of the bayonet assembly (40) for controlling rotational speed of the motors (80) in order to control movement of the bayonet assembly (40) with the strap feeding units (42) to have smooth acceleration and deceleration, and also in case of jam in the internal path, the bayonet assembly (40) with the strap feeding units (42) can retract automatically.
  • the wire rod diameter can be entered in the HMI interface (720) of the control system (700).
  • the PLC (710) calculates the required force to be applied on the given coil (100) based on stiffness and material properties of the coil (100) such as Young's modulus of elasticity, Modulus of rigidity, poisons ratio, etc.
  • the PLC (710) calculates the required pressure based on a computation algorithm for calculating the force required to be applied on the coil (100) to be compacted and strapped.
  • the PLC (710) generates the analog voltage signal, which is supplied to the amplifier card of the proportional valve to supply the given pressure equivalent to the applied force.
  • the proportional valve converts the electrical signals to proportional pressure output signal to the wire rod coil (100) with the help of movable platen (30).
  • the compactor also includes an intelligent compacting module that is associated with the movable platen (30) and controlled by the control system (700), so that the movable platen (30) along with the bayonet assembly (40) is actuated towards the fixed platen (12) for compacting the wire rod coil (100) at the desired compacting pressure depending upon coil characteristic such as coil diameter, spring action and elasticity of coil material, once the wire rod coil (100) is loaded on the cradle roller unit (20).
  • the desired compacting pressure is determined based on a computation algorithm carried out by the PLC (710).
  • Such wire rod coil compactor facilitates entanglement free strap feeding and optimum compacting to avoid strap snapping, and also eliminates the need of operator to do trial and error to set the pressure. It is well-suited for small and medium scale steel mills. Such compactor is less expensive, and low operating and maintenance costs.
  • FIGS. 8A-8F respectively illustrate sequence of operation for compacting and strapping the wire rod coil (100) in the off-line mode, in accordance with an exemplary embodiment of the present invention.
  • the coil compactor is arranged in such a way the movable platen (30) and the bayonet assembly (40) is placed and positioned with respect to the fixed platen (20), i.e. to its initial position, to make enough space to load the wire rod coil (100) on the coil compactor.
  • the wire rod coil (100) is loaded on the cradle roller unit (20) of the compactor using the EOT crane or fork lift.
  • the movable platen (30) is actuated and guided on the guiding path (14) of the main frame assembly (10), towards the fixed platen (12) for compacting the wire rod coil (100) in the cradle roller unit (20).
  • the bayonet assembly (40) with the strap feeding units (42) can also move forward towards the fixed platen (12).
  • the wire rod coil (100) can be compacted using the moveable platen (30) by applying a force of max 25 tonnes (variable) with the help of hydraulic cylinder (70).
  • the strap (101) is fed manually from either side of the coil compactor through the strap feeding units (42), and then the tensioning and sealing operation is carried out by the pneumatic tool, as shown in 805.
  • the operator presses a strap over button provided in the HMI (720) in the control system (700) such that the movable platen (30) moves towards the initial position along with the bayonet assembly (40).
  • the kicker (602) gets activated with the help of hydraulic cylinder (601) and pushes the coil (100) out of the cradle roller unit (20), which moves the compacted and strapped coil (100) to the ramp unit (50), as shown in 806.
  • the compacted and strapped coil (100) held by the stopper (52) of the ramp unit (50) can be unloaded from the ramp unit (50) by the EOT crane or fork lift.
  • the above sequence of operation and mechanism can be followed and repeated for each wire rod coil (100) to be compacted and strapped.

Abstract

La présente invention concerne un ensemble pour le compactage et le cerclage d'une bobine de fil machine dans un mode hors ligne, qui comprend un ensemble châssis principal (10) présentant un espace creux, une platine fixe (12) au niveau de son extrémité et un trajet de guidage (14) sur sa surface supérieure. Une unité de rouleau de support (20) est positionnée et placée à l'intérieur de l'espace creux de l'ensemble châssis principal pour le chargement de la bobine de fil machine. Une platine mobile (30) est associée à l'ensemble châssis principal de manière à ce que la platine mobile soit actionnée et guidée sur le trajet de guidage de l'ensemble châssis principal en direction de la platine fixe pour le compactage de la bobine de fil machine chargée dans l'unité de rouleau de support. Un ensemble baïonnette (40) est placé de manière à être adjacent à la platine mobile et est assemblé à une série d'unités d'alimentation de courroie (42). Après le compactage de la bobine de fil machine, l'ensemble baïonnette est actionné et guidé en direction de la platine fixe, de sorte que les unités d'alimentation de courroie soient guidées à l'intérieur de la bobine de fil machine à travers la platine mobile et correspondent à une série de parties de réception de courroie (12a) dans la platine fixe pour le cerclage de la bobine de fil machine. Un tel ensemble facilite l'alimentation de la courroie et permet d'empêcher que celle-ci ne se coince pendant le cerclage de la bobine de fil machine, et permet également d'empêcher la rupture de la courroie en raison d'un compactage incorrect de la bobine indépendamment de ses caractéristiques.
PCT/US2011/047275 2010-08-11 2011-08-10 Compacteur de bobine de fil machine comprenant un trajet d'alimentation de courroie WO2012021637A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2309CH2010 2010-08-11
IN2309/CHE/2010 2010-08-11

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Publication Number Publication Date
WO2012021637A1 true WO2012021637A1 (fr) 2012-02-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113978787A (zh) * 2021-12-01 2022-01-28 上海为隆节能环保技术有限公司 一种盘条打包机垫片放置机垫片卷通道的压条结构
CN116891040A (zh) * 2023-09-08 2023-10-17 潍坊特钢集团有限公司 一种热轧盘条打包装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195444A (en) * 1963-09-27 1965-07-20 Morgan Construction Co Means for collecting, compacting, banding and weighing a plurality of coils of rod
US3498212A (en) * 1968-01-22 1970-03-03 Webb Co Jervis B Coil compacting and banding apparatus
DE1586294A1 (de) * 1967-09-27 1970-06-25 Schmitz Soehne Gmbh J H Drehkreuz als Ladevorrichtung fuer Bundpressen
US3548739A (en) * 1968-04-01 1970-12-22 Botalam Machine for compacting and binding coils
GB2268438A (en) * 1992-07-02 1994-01-12 Autotreads & Accessories Limit Machine for compacting waste tyres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195444A (en) * 1963-09-27 1965-07-20 Morgan Construction Co Means for collecting, compacting, banding and weighing a plurality of coils of rod
DE1586294A1 (de) * 1967-09-27 1970-06-25 Schmitz Soehne Gmbh J H Drehkreuz als Ladevorrichtung fuer Bundpressen
US3498212A (en) * 1968-01-22 1970-03-03 Webb Co Jervis B Coil compacting and banding apparatus
US3548739A (en) * 1968-04-01 1970-12-22 Botalam Machine for compacting and binding coils
GB2268438A (en) * 1992-07-02 1994-01-12 Autotreads & Accessories Limit Machine for compacting waste tyres

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113978787A (zh) * 2021-12-01 2022-01-28 上海为隆节能环保技术有限公司 一种盘条打包机垫片放置机垫片卷通道的压条结构
CN113978787B (zh) * 2021-12-01 2023-02-28 上海为隆节能环保技术有限公司 一种盘条打包机垫片放置机垫片卷通道的压条结构
CN116891040A (zh) * 2023-09-08 2023-10-17 潍坊特钢集团有限公司 一种热轧盘条打包装置
CN116891040B (zh) * 2023-09-08 2023-12-01 潍坊特钢集团有限公司 一种热轧盘条打包装置

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