Automatic unwinder of flexible materials comprising feeding means for feeding the operating machine with at least a flexible material, defining a mouth, susceptible of being traversed in the advancement direction of the material, and at least a slide guide, extended between a first end, in proximity to the mandrels, and a second end, in proximity to the mouth, and a rack, at which portions of flexible materials can be retained. The automatic unwinder further comprises at least a carriage, provided with a retention gripper, and movement means in order to move the carriage along at least a slide guide between a grip position, in which the carriage is at the first end and the gripper is susceptible of grippingly receive a free flap of the flexible material, and a release position, in which the carriage is at the second end to release the free flap at the rack.

Automatic unwinder of flexible materials comprising feeding means for feeding the operating machine with at least a flexible material, defining a mouth, susceptible of being traversed in the advancement direction of the material, and at least a slide guide, extended between a first end, in proximity to the mandrels, and a second end, in proximity to the mouth, and a rack, at which portions of flexible materials can be retained. The automatic unwinder further comprises at least a carriage, provided with a retention gripper, and movement means in order to move the carriage along at least a slide guide between a grip position, in which the carriage is at the first end and the gripper is susceptible of grippingly receive a free flap of the flexible material, and a release position, in which the carriage is at the second end to release the free flap at the rack.

A deposit device is configured to temporarily store a carrier tape with through holes on the carrier tape platform. The carrier tape platform is used to pull the carrier tape to external equipment for processing. The deposit device includes a storage bin and a deposit assembly. The storage bin is configured to temporarily store the carrier tape and has an opening. The storage bin is configured to be mounted on the carrier tape platform to make the opening to correspond to the carrier tape. The deposit assembly includes a deposit driver and a deposit member. The deposit member with a plurality of teeth is located in the storage bin. The deposit driver is configured to drive the deposit member to rotate to cause one of the plurality of teeth to be located in one of the through holes, thereby driving the carrier tape to move into the storage bin.

A tape supply device is disclosed. The tape supply device comprises a supply roll supplying a tape having a first surface and a second surface formed opposite to the first surface; and a clamp gripping an end of the tape drawn from the supply roll. The clamp includes a first fixing part movable in an up-down direction, the first fixing part positioned above the tape, the first fixing part facing the first surface; a second fixing part positioned below the first fixing part, the second fixing part positioned below the tape, the second fixing part facing the second surface, and the second fixing part movable in the up-down direction, the second fixing part including a through hole; and a push rod positioned below the second fixing part. When the second fixing part moves down, the push rod passes through the through hole and protrudes upward from the second fixing part.

A tape supply device is disclosed. The tape supply device comprises a supply roll supplying a tape having a first surface and a second surface formed opposite to the first surface; and a clamp gripping an end of the tape drawn from the supply roll. The clamp includes a first fixing part movable in an up-down direction, the first fixing part positioned above the tape, the first fixing part facing the first surface; a second fixing part positioned below the first fixing part, the second fixing part positioned below the tape, the second fixing part facing the second surface, and the second fixing part movable in the up-down direction, the second fixing part including a through hole; and a push rod positioned below the second fixing part. When the second fixing part moves down, the push rod passes through the through hole and protrudes upward from the second fixing part.

Embodiments relate to a jelly roll winding unit (1) and winding method for a secondary battery and, more particularly, to a jelly roll winding unit (1) and winding method for a secondary battery seeking to prevent sagging in the width direction by constantly supporting the bottom of a jelly roll (J) during the work of wrapping the jelly roll (J) with a separator (B) and easily guides the folding line of the separator (B) as needed.

Embodiments relate to a jelly roll winding unit (1) and winding method for a secondary battery and, more particularly, to a jelly roll winding unit (1) and winding method for a secondary battery seeking to prevent sagging in the width direction by constantly supporting the bottom of a jelly roll (J) during the work of wrapping the jelly roll (J) with a separator (B) and easily guides the folding line of the separator (B) as needed.

The present invention relates to an electrode connection apparatus including a transfer unit configured to transfer a start portion of a standby electrode roll in a state of gripping the start portion, a leading unit configured to move upwards in a state of gripping the start portion of the standby electrode roll transferred by the transfer unit, a first connection unit configured to fix the standby electrode roll transferred by the leading unit, a second connection unit configured to fix an end portion of a moving electrode roll, and a taping unit configured to connect the standby electrode roll and the moving electrode roll to each other, whereby it is possible to automatically connect the electrode rolls to each other during an electrode manufacturing process performed as a roll-to-roll process.

The present invention relates to an electrode connection apparatus including a transfer unit configured to transfer a start portion of a standby electrode roll in a state of gripping the start portion, a leading unit configured to move upwards in a state of gripping the start portion of the standby electrode roll transferred by the transfer unit, a first connection unit configured to fix the standby electrode roll transferred by the leading unit, a second connection unit configured to fix an end portion of a moving electrode roll, and a taping unit configured to connect the standby electrode roll and the moving electrode roll to each other, whereby it is possible to automatically connect the electrode rolls to each other during an electrode manufacturing process performed as a roll-to-roll process.

A web transport assembly for moving flexible sheet material in a manufacturing process. The web transport assembly comprises first and second gripper chains spaced apart from one another to define a path of travel of the flexible sheet material, each of the gripper chains having a plurality of saddle links and a plurality of gripper links. First and second parallel rail structures are respectively aligned with the first and second gripper chains. In addition, upstream and downstream hubs are associated with each of the first and second gripper chains to define a continuous loop about which the associated gripper chain extends. At least one of the hubs includes a driven sprocket having a plurality of teeth engaging the associated gripper chain. The saddle links have a pair of spaced apart extension portions defining a spaced in which an associated one of the rails is received. The gripper links have a gripper mechanism that is configured to clamp a side of the flexible sheet material.