12results about "Web rotation wrapping" patented technology

A tension control apparatus controls tension of the material to be rolled when the material to be rolled passed through the final rolling stand of the finishing mill is coiled on a mandrel through pinch rolls. The tension control apparatus is configured to switch rotational driving of the mandrel between speed control and current control. The tension control apparatus includes a selection unit configured to compare torque necessary for the speed control and torque necessary for the current control, and to select small torque as final torque, and an integrator configured to integrate an output of the speed control, and further includes a limit setting unit configured to set, to the integrator, a limit corresponding to a tension reference. The tension control apparatus is configured to prevent an output of the integrator from being saturated.

A wrapping device and wrapping method for an electrode assembly. The wrapping device comprises a first wrapping assembly and a first positioning assembly. The first wrapping assembly is configured to position a wrapping film. The wrapping film comprises two main wrapping areas and a connecting area, with an opening being provided in the connecting area. The first positioning assembly is configured to position the electrode assembly and arrange a tab portion protruding from a first one of two end surfaces of the electrode assembly to face the connecting area. The first positioning assembly and the first wrapping assembly are configured to move relative to each other, such that the tab portion passes through the opening along with the relative movement of the first positioning assembly and the first wrapping assembly, and the connecting area wraps around the first one of the two end surfaces.

Various embodiments of the present disclosure provide a coil-wrapping system that simultaneously employs separate multiple film rolls to simultaneously wrap separate films around a single coil while the coil is rotated about its longitudinal axis.

A hand-held dispenser for holding a roll of a wrapping material such as flexible and stretchable plastics film comprises a handle 1 having an arm 2, 3 extending from each end thereof connected to a mo

Disclosed in the present application are a wrapping apparatus and wrapping method for an electrode assembly. The electrode assembly comprises an electrode main body and a tab portion, wherein the electrode main body has a first direction, a second direction and a third direction, and comprises two main surfaces, two end surfaces and two side surfaces, and the tab portion protrudes from the first one of the two end surfaces. The wrapping apparatus comprises a first wrapping assembly and a first positioning assembly. The first wrapping assembly is configured to position a wrapping film. The wrapping film comprises two main wrapping areas and a connecting area, with an opening being provided in the connecting area. The first positioning assembly is configured to position the electrode assembly and arrange the tab portion to face the connecting area. The first positioning assembly and the first wrapping assembly are configured to move relative to each other, such that the tab portion passes through the opening along with the relative movement of the first positioning assembly and the first wrapping assembly, and the connecting area wraps around the first one of the two end surfaces. In this way, the interference of the tab portion on the wrapping process can be reduced, and the wrapping effect is improved.

Embodiments of product handling systems facilitate transfer of individual product items from incoming bulk form into dedicated trays for inspection, sorting, selection, and packaging. Inspection may comprise interrogation of product items within a tray by electromagnetic (e.g., optical, hyperspectral) or other (e.g., physical, acoustic, gas sensing, etc.) techniques. Prior to packaging, product items disposed within the tray may be stored in a moveable carousel responsible for controlling environmental factors such as temperature, humidity, illumination, ambient gases, product-to-product interactions, and / or others. Movement of product items from a carousel's transfer station to an outside staging position may be accomplished using robots and / or conveyor belts. Embodiments may allow rapid, low-cost consumer selection of specific individual product items based upon their accompanying metadata (e.g., source, identifier), in combination with the results of inspection (e.g., visual appearance). Embodiments may receive product items pre-packaged in tray format to expedite inspection, sorting, selection, and packaging.

A hand-held dispenser for holding a roll of a wrapping material comprises a handle (1) having an arm (2, 3) extending from each end thereof connected to a mount (4, 5) for receiving the roll extending parallel to the handle in use, the opposed ends of the arms being configured to mount the roll between them. The handle (1) comprises two mutually movable parts (1a, 1b) with a screw adjuster (11) between them whereby the spacing between the opposed free ends may be increased or decreased, the screw adjuster (11) being operated by a twistable grip (8) around the handle (1).

A wrapper machine has a coiling station (5) for forming a coil (6) of a flexible article (2) with an elongated shape, a packaging station (7) for wrapping a stretch film (3) around the coil (6), and a transfer unit (10) for transferring the coil (6) from coiling station (5) to packaging station (7), at which coil (6) is wrapped in a stretch film (3), and is moved intermittently around a rotation axis (40) by two holding jaws (39) mounted so as to rotate due to the thrust of respective crank mechanisms (48) connected with an electric motor (44) via the interposition of a transmission shaft (45).

Various embodiments of the present disclosure provide a wrapping machine that includes an indicating device including one or more light sources configured to project a visible wrapping-zone indicator. The wrapping-zone indicator includes a boundary at least partially surrounding a wrapping zone of the wrapping machine to indicate the wrapping zone.

This relates to a stretch wrapping machine equipped with at least three spare stretch rollers. [Solution] The present invention relates to a stretch wrapping machine equipped with at least three pre-stretch rollers, wherein the pre-stretch rollers are sized, positioned, or configured to minimize necking and slippage as the film is pulled out and stretched through the pre-stretch rollers before the film is applied to the package.

Various embodiments of the present disclosure provide a stretch-wrapping machine with at least three pre-stretch rollers sized, positioned, and otherwise configured to minimize necking and slippage as the film is drawn through and stretched by the pre-stretch rollers before the film is applied to the load.

A cutting unit (1) for separating one or more bundles (F) wrapped with a continuous wrap or for cutting a flat film in dynamic transit, comprising a load-bearing structure (11) which operatively supports: - two eccentric wheels (13, 14), wherein said two eccentric wheels (13, 14) are hinged on opposite sides of the load-bearing structure (11) and comprise an outer crown element (113a, 114a) and an eccentric central plate (113b, 114b), the outer crown element (113a, 114a) being idly coupled to the eccentric central plate (113b, 114b); - a heated cutting wire (12) having two ends (112), the cutting wire (12) being fixed at the two ends (112) onto said outer crown element (113a, 114a) by pins (28), at a first circumferential portion (13a, 14a) of said eccentric wheels (13, 14); - a tensioning wire (212) having two ends (312) and comprising an elastic compensation element (16) along its length, the tensioning wire (212) being fixed at the two ends (312) onto said outer crown element (113a, 114a) by pins (128), at a second circumferential portion (13b, 14b) of the eccentric wheels (13, 14), so that an arc of a circle between the pins (28) of the first circumferential portion (13a, 14a) and the pins (128) of the second circumferential portion (13b, 14b) is less than 180° and preferably between 150°C and 170°C; wherein said eccentric central plate (113b, 114b) of said eccentric wheels (13, 14) is eccentrically fixed to a respective shaft (36), which is in turn fixed to a respective actuation pulley (26, 27), said actuation pulleys (26, 27) being continuously and synchronously rotated so as to impart to said eccentric wheels (13, 14) an alternate motion component in a plane substantially perpendicular to a surface to be cut of said continuous wrap or flat film, between an engagement position with said continuous wrap or flat film and a disengagement position from said continuous wrap or flat film.