A system for forming and fanfolding a sheet material, from a web of indefinite length, having a bottom, top and longitudinal side edges, the system includes a frame, a feeding device, a creasing device downstream of the feeding device to form transverse creases on the web spaced apart at a constant longitudinal pitch and defining adjacent partitions, and a folding device located downstream of the creasing device for folding adjacent partitions along creases into a fanfold arrangement. The folding device includes at least one first group of thrust tools acting on creases formed on the bottom side of the web and at least one second group of thrust tools acting on creases formed on the top side of the web. The thrust tools of each group are mechanically connected to and operatively dependent on each other so that tools of the same group are forced to follow the same trajectory.

A sheet processing apparatus includes: an output unit that renders one side of a sheet convex and outputs the sheet, the sheet having the one side and other side; a first folding unit that mountain-folds the one side of the sheet, which is rendered to be convex, to form a first fold in the sheet; and a second folding unit that mountain-folds the one side of the sheet, which includes the first fold formed therein, to form a second fold in the sheet.

An electrode assembly is manufactured in a process in which a positive electrode and a negative electrode are alternately stacked and a separator is positioned between the positive electrode and the negative electrode. The positive electrode is disposed above a first separator in a first step. A second separator is disposed above the positive electrode to cover the positive electrode in a second step. A negative electrode is disposed above the second separator in a third step. A third separator is disposed above the negative electrode to cover the negative electrode in a fourth step. In the first step and the third step, a laser beam is irradiated to indicate positions at which the positive electrode and the negative electrode are disposed.

A method for folding and stacking a stretchable sheet includes a first conveying step in which a stretchable sheet is conveyed in a stretched state to an stretchable sheet discharger using conveyance rollers that define the conveyance speed V.sub.1, V.sub.2 of the stretchable sheet; and a second conveying step in which the stretchable sheet discharger conveys the stretchable sheet from an introduction port to a discharge port of the stretchable sheet discharger while clamping both sides of the stretchable sheet in the first direction, and the discharge port of the stretchable sheet discharger reciprocates in the first direction to fold and stack the discharged stretchable sheet from the discharge port of the stretchable sheet discharger. The conveyance speed V.sub.3 when the stretchable sheet discharger conveys the stretchable sheet is smaller than the conveyance speed V.sub.1, V.sub.2 when the conveyance rollers convey the stretchable sheet.

A method for folding and stacking a stretchable sheet includes a first conveying step in which a stretchable sheet is conveyed in a stretched state to an stretchable sheet discharger using conveyance rollers that define the conveyance speed V.sub.1, V.sub.2 of the stretchable sheet; and a second conveying step in which the stretchable sheet discharger conveys the stretchable sheet from an introduction port to a discharge port of the stretchable sheet discharger while clamping both sides of the stretchable sheet in the first direction, and the discharge port of the stretchable sheet discharger reciprocates in the first direction to fold and stack the discharged stretchable sheet from the discharge port of the stretchable sheet discharger. The conveyance speed V.sub.3 when the stretchable sheet discharger conveys the stretchable sheet is smaller than the conveyance speed V.sub.1, V.sub.2 when the conveyance rollers convey the stretchable sheet.

The present application relates to a laminating machine, including a heating device, a first sheet material device, a second sheet material device, and a first combining device. By using the laminating machine, adhesives on opposite sides of a first combining material strip are heated and melted by the heating device; then, the first sheet material device and the second sheet material device attach a first sheet material and a second sheet material to the opposite sides of the first combining material strip respectively; next, a second combining material strip is formed by the first combining device. Due to the adhesives being melted, bonding strength of the first sheet material and the second sheet material to the first combining material strip can be guaranteed, avoiding a displacement after the first sheet material and the second sheet material are attached to the first combining material strip.

The present application relates to a laminating machine, including a heating device, a first sheet material device, a second sheet material device, and a first combining device. By using the laminating machine, adhesives on opposite sides of a first combining material strip are heated and melted by the heating device; then, the first sheet material device and the second sheet material device attach a first sheet material and a second sheet material to the opposite sides of the first combining material strip respectively; next, a second combining material strip is formed by the first combining device. Due to the adhesives being melted, bonding strength of the first sheet material and the second sheet material to the first combining material strip can be guaranteed, avoiding a displacement after the first sheet material and the second sheet material are attached to the first combining material strip.

The present application relates to a laminating machine, including a first heating device, a first sheet material device, a second sheet material device, and a first combining device, the first combining device includes a heating mechanism and a rolling mechanism. A first sheet material, a first material strip, and a second sheet material are heated and pressed by the heating mechanism and the rolling mechanism, compared with a combination method of a PET film and an oven, it is not necessary to set arrange the PET film, cost of the PET film, arranging a PET film unwinding mechanism, and arranging a PET film winding mechanism is reduced, and occupied space is reduced, manufacturing cost is reduced, and there is no need to set up a longer oven, which improves combination efficiency and production efficiency, and further saves space and reduces device cost.

A system for stacking a fanfolded continuous web of sheet material of indefinite length, such as corrugated cardboard, includes a feeding device that guides the continuous web longitudinally, a creasing device downstream of the feeding device to form transverse creases on the continuous web with a constant longitudinal pitch to define a succession of adjacent partitions, a folding device downstream of the creasing device for progressively and alternately fanfolding adjacent partitions along the creases, and a collection device for collecting the folded web. The collection device includes a vertical column for retaining the stack of fanfolded adjacent partitions, and a cutting unit is mounted at the top of the column to act on the fly on the top adjacent partition of the stack while tracking stack-formation without stopping the folding device. A method of stacking a sheet material, such as a fanfolded continuous web of corrugated cardboard of indefinite length.