A device for separating a deep-drawn jaw-spanning dental apparatus such as an aligner or a bite splint of thermoform film that includes: a separating element for thermally separating the deep-drawn thermoform film and simultaneously refining, the separated deep-drawn thermoform film; a heating means for regulating the heating of the separating element so as to increase the temperature of the thermoform film substantially to at least its glass temperature; a support for supporting the deep-drawn thermoform film relatively movable with respect to the separating element; a moving mechanism for moving the separating element along a separation contour of the deep-drawn jaw-spanning dental apparatus relative to the support; and a control unit adapted to control the heating means and the moving mechanism based on the separation contour.

A system and method of providing a secondary means for removing thermoforming trim material from a continuous-loop clamping chain (202) having clamps (302) biased to engage a clamp grip surface (314). A cam (400), attached to a sprocket located downstream from a cutting station (114) but upstream from a forming station (102), provides an outer surface that engages a clamp release surface (306) as the link member (300) passes over the sprocket.

A system and method for forming plastic sheet into a three-dimensional shape. The plastic sheet may include one or more sheet-mounted components, such as electronics, that must be shielded from excessive heat, pressure, and/or crushing when the formation of the sheet occurs. A recess will be formed to protect against directly contacting sheet-mounted component. The recess may be aligned along the heating plate and/or the form core and/or along a protective blanket which may be set over (and under) sheet prior to heating/forming. The sheet is registered (with or without a blanket) onto a base plate, and preferably over a form core. The sheet is then raised to contact with a heating plate, and then placed downward over the (optionally heated) form core. Recess(es) align in locations corresponding to mounted component to protect same.

A system and method for forming plastic sheet into a three-dimensional shape. The plastic sheet may include one or more sheet-mounted components, such as electronics, that must be shielded from excessive heat, pressure, and/or crushing when the formation of the sheet occurs. A recess will be formed to protect against directly contacting sheet-mounted component. The recess may be aligned along the heating plate and/or the form core and/or along a protective blanket which may be set over (and under) sheet prior to heating/forming. The sheet is registered (with or without a blanket) onto a base plate, and preferably over a form core. The sheet is then raised to contact with a heating plate, and then placed downward over the (optionally heated) form core. Recess(es) align in locations corresponding to mounted component to protect same.

A method for forming an article includes providing a sheet of material, optionally conditioning the sheet with a surface of a roller, forming the sheet to provide a web, and separating an article from the web to provide the article. An apparatus adapted to form the article from a sheet is provided.

A method for forming an article includes providing a sheet of material, optionally conditioning the sheet with a surface of a roller, forming the sheet to provide a web, and separating an article from the web to provide the article. An apparatus adapted to form the article from a sheet is provided.

A method for forming an article includes providing a sheet of material, optionally conditioning the sheet with a surface of a roller, forming the sheet to provide a web, and separating an article from the web to provide the article. An apparatus adapted to form the article from a sheet is provided.

A method for forming an article includes providing a sheet of material, optionally conditioning the sheet with a surface of a roller, forming the sheet to provide a web, and separating an article from the web to provide the article. An apparatus adapted to form the article from a sheet is provided.

A method for thermoforming an article includes extruding a sheet of material, conditioning the sheet with a roller, thermoforming the sheet to provide a web, and cutting the web to provide the article.

Three-dimensional decorative articles are produced from blanks of heat-shrinkable plastic sheet material, using a mold base having an outer surface with a recess over which a blank is placed, and a convex mold insert that moves into the recess by gravity as the blank softens and cooperates with the interior wall of the recess to shape the sheet material into a three-dimensional decorative article. A guide peg extends outward from the bottom of the recess past the outer surface of the mold base and extends through a hole formed in the blank, and through a guide hole in the mold insert to support the mold insert before heating and to guide the mold insert as it moves into the recess of the mold base.