A welding station for producing a wrapping has a support wheel and a welding device housed on the support wheel and having a head assembly that has a welding member, a support body, and a rod axially movable between a retracted position and a forward position. The support body is integral with an axial end of the rod. The welding device has an abutment assembly having an abutment member and a base assembly engaged to the support wheel. The welding device is configurable in an open configuration where the head assembly and the abutment assembly are mutually spaced, the rod is axially retracted, and the abutment member allows the wrapping to be loaded onto and removed from the head assembly, and a welding configuration where the head assembly and the abutment assembly are mutually engaged, the rod is axially forward and the abutment is engaged by the welding member.

An outer ring (29) is first transported to an insertion point (E) in the feed device (34). At the same time, a circular blank ring (30) is brought into a starting position (P) in the feed device. The circular blank ring (29) is first aligned coaxially with respect to an axis (A) using a centering body (61). The circular blank ring moves solely radially with respect to the axis (A). The circular blank ring (30) is then inserted into the hole of the outer ring (29). During this movement, the circular blank ring is aligned coaxially with respect to the axis (A) preferably using a centering channel (54). The circular blank ring (30) carries out a superimposed movement in the axial direction (V) and in the radial direction radially with respect to the axis (A).

An outer ring (29) is first transported to an insertion point (E) in the feed device (34). At the same time, a circular blank ring (30) is brought into a starting position (P) in the feed device. The circular blank ring (29) is first aligned coaxially with respect to an axis (A) using a centering body (61). The circular blank ring moves solely radially with respect to the axis (A). The circular blank ring (30) is then inserted into the hole of the outer ring (29). During this movement, the circular blank ring is aligned coaxially with respect to the axis (A) preferably using a centering channel (54). The circular blank ring (30) carries out a superimposed movement in the axial direction (V) and in the radial direction radially with respect to the axis (A).

A compression roller device includes markers on roller heads for pressure-rolling over a substrate to form visual indicia that the substrate has been properly pressure-rolled. In example embodiments, there are two roller heads that each have a set of markers and that are spaced-apart with a handle center-mounted between them. In this way, the roller heads have free/unobstructed outer/opposite edges so they can be positioned closely against an obstructing surface or element for rolling substrates in tight spots with limited clearance. Also, the recess defined between the inner/facing edges of the roller heads provides clearance for rolling over any protruding fasteners securing the substrate in place. Further, the spaced-apart marker sets provide for marking the visual indicia on both sides of a seam/joint between two adjacent panels in a panel-and-tape system to show that both longitudinal side portions of the tape have been pressure-rolled.

A compression roller device includes markers on roller heads for pressure-rolling over a substrate to form visual indicia that the substrate has been properly pressure-rolled. In example embodiments, there are two roller heads that each have a set of markers and that are spaced-apart with a handle center-mounted between them. In this way, the roller heads have free/unobstructed outer/opposite edges so they can be positioned closely against an obstructing surface or element for rolling substrates in tight spots with limited clearance. Also, the recess defined between the inner/facing edges of the roller heads provides clearance for rolling over any protruding fasteners securing the substrate in place. Further, the spaced-apart marker sets provide for marking the visual indicia on both sides of a seam/joint between two adjacent panels in a panel-and-tape system to show that both longitudinal side portions of the tape have been pressure-rolled.

Provided are a sheet supply device and a sheet supply method capable of keeping the precision of a sheet separating operation constant regardless of differences in diameter dimensions of rolls. A second guide roller is disposed at an opposite side of a standby side roll with respect to a tangential line to the outer peripheral surface of the standby side roll at a pressing position in a state in which the pressing roller is pressed against the pressing position, and guides a sheet such that the sheet is guided from the pressing roller in a direction away from the standby side roll. Furthermore, the second guide roller is fixed to a moving unit so as to be configured to approach and move away from the standby side roll together with the pressing roller.

Various embodiments introduce a device for attaching a protection film, the device comprising: a fixing tray including a seating portion on which an electronic device is stably placed; a base portion including a coupling portion to allow the fixing tray to be attached to or detached from the base portion and at least one rail formed along the longitudinal direction or the width direction of the coupling portion; a roller portion which moves along the at least one rail and presses a surface of the electronic device stably placed on the fixing tray; and a hardening portion coupled to the base portion, closing or opening the seating portion of the fixing tray, and emitting ultraviolet rays toward the fixing tray. Other embodiments are also possible.

Various embodiments introduce a device for attaching a protection film, the device comprising: a fixing tray including a seating portion on which an electronic device is stably placed; a base portion including a coupling portion to allow the fixing tray to be attached to or detached from the base portion and at least one rail formed along the longitudinal direction or the width direction of the coupling portion; a roller portion which moves along the at least one rail and presses a surface of the electronic device stably placed on the fixing tray; and a hardening portion coupled to the base portion, closing or opening the seating portion of the fixing tray, and emitting ultraviolet rays toward the fixing tray. Other embodiments are also possible.

An apparatus for manufacturing a display apparatus is provided. The apparatus includes: a first seat portion configured to receive a first member; a second seat portion arranged to face the first seat portion and configured to receive a second member; a roller portion adjacent to a second side of the second seat portion; a rail groove in one surface of the second seat portion facing the first seat portion; and an adsorber inside the rail groove and configured to adsorb the second member.

An apparatus for manufacturing a display apparatus is provided. The apparatus includes: a first seat portion configured to receive a first member; a second seat portion arranged to face the first seat portion and configured to receive a second member; a roller portion adjacent to a second side of the second seat portion; a rail groove in one surface of the second seat portion facing the first seat portion; and an adsorber inside the rail groove and configured to adsorb the second member.