The disclosure relates to forming shaped thermoplastic articles having smooth peripheries. Many thermoplastic articles have sharp edges formed upon molding or cutting the article from a feedstock sheet. Such sharp edges can damage thin plastic films or flesh which they contact, and smoothing the edges is desirable. Described herein are methods of forming a smooth periphery for such sharp-edged articles by rolling over the sharp edge. The smoothing operation is performed by forming a deflectable flange including a bend region separated from the potentially sharp peripheral edge by a spacer, deflecting a portion of the deflectable flange, and softening at least one bent portion of the deflectable flange to yield a smooth periphery upon cooling. The deflection can include curling the spacer at or near the peripheral edge.

Cup or cartridge that is deep-drawn from a plastic film or a plastic cutout has a bottom and a circumferential wall, wherein the deep-drawing contour ensures a predetermined material distribution. A reinforcement, in terms of design, may be provided at the transition between the bottom and the wall. The transition between the bottom and the wall may have an approximately identical or greater material thickness than the bottom or the wall or than both the bottom and the wall.

The disclosure relates to forming shaped thermoplastic articles having smooth peripheries. Many thermoplastic articles have sharp edges formed upon molding or cutting the article from a feedstock sheet. Such sharp edges can damage thin plastic films or flesh which they contact, and smoothing the edges is desirable. Described herein are methods of forming a smooth periphery for such sharp-edged articles by rolling over the sharp edge. The smoothing operation is performed by forming a deflectable flange including a bend region separated from the potentially sharp peripheral edge by a spacer, deflecting a portion of the deflectable flange, and softening at least one bent portion of the deflectable flange to yield a smooth periphery upon cooling. A liner sheet may be attached to the feedstock sheet prior to, during, or after forming and can be peelable therefrom.

A method for producing a tub-shaped sanitary object made of plastic with a visible side and a bottom, including the following steps: providing a plastic sheet to be molded to form the sanitary object; providing a forming device having a frame arrangement including a first frame with a first frame-shaped bending structure and a second frame with a second frame-shaped bending structure, wherein the plastic sheet is to be formed by bending structures; arranging and attaching the heated plastic sheet to the first frame; inserting the second frame into the open first frame into a forming end position so that the second frame takes along the plastic sheet with its bending structure when it is inserted, wherein the plastic sheet is formed into a tub shape by both the first and the second bending structure; and, cooling the formed plastic sheet.

The disclosure relates to forming shaped thermoplastic articles having smooth peripheries. Many thermoplastic articles have sharp edges formed upon molding or cutting the article from a feedstock sheet. Such sharp edges can damage thin plastic films or flesh which they contact, and smoothing the edges is desirable. Described herein are methods of forming a smooth periphery for such sharp-edged articles by rolling over the sharp edge. The smoothing operation is performed by forming a deflectable flange including a bend region separated from the potentially sharp peripheral edge by a spacer, deflecting a portion of the deflectable flange, and softening at least one bent portion of the deflectable flange to yield a smooth periphery upon cooling.

Pot with an undercut that includes a bottom wall (5), a side wall (6) that is closed on itself and connected to the bottom wall (5), with an opening providing access to the interior of the pot. The outside surface of the side wall of the pot has a non-symmetrical undercut shape for rotation around the vertical direction (Z). The outside surface has at least one vertical demolding plane (P) such that an undercut value of the pot with respective side ends of the pot, with a maximum side spacing of the outside surface in relation to the vertical demolding plane (P), is less than a maximum undercut value of the pot on the circumference of the outside surface of the pot.

The invention relates to a method and a device for producing large-volume container trays of plastic. A tubular preform is guided over a mold frame which is facing two blow molds. During the closure of the blow molds, an encircling flange is formed on the outer edge of the container trays. After blow molding, the container trays are cut free from the mold frame along said mold frame.

A method for making a containment element that has a bottom wall (3), a lateral wall (4) connected at the bottom to the bottom wall (3) and a shaped perimetric flange that extends outwards from an upper part of the lateral wall (4), wherein the method comprises a thermoforming operating step in which a flat sheet is thermoformed and the bottom wall (3), the lateral wall (4) and an annular band (2) that projects outwards from the upper part of the lateral wall (4) are created and, subsequently, a hot bending operating step for bending the annular band (2), dividing the annular band (2) into a first annular portion (6) and a second annular portion (7) which are concentric and are not coplanar, after the hot bending the annular band (2) constituting the shaped perimetric flange. An apparatus and a machine able to implement all or part of that method are also claimed.

A molding tool (1000), in particular a thermoforming tool, for producing a container (10) is provided. The molding tool comprises a mold bottom (200) and a mold insert (100) receiving the mold bottom (200), wherein the mold insert (100) is constructed of at least two mold insert parts (110, 120) that together with the mold bottom (200) define a cavity (300) provided for reshaping a two-dimensional web of material into a container, wherein a first mold insert part (110) is mounted stationary in the molding tool (1000) and a second mold insert part is axially movable in the molding tool (1000).

The disclosure relates to forming shaped thermoplastic articles having smooth peripheries. Many thermoplastic articles have sharp edges formed upon molding or cutting the article from a feedstock sheet. Such sharp edges can damage thin plastic films or flesh which they contact, and smoothing the edges is desirable. Described herein are methods of forming a smooth periphery for such sharp-edged articles by rolling over the sharp edge. The smoothing operation is performed by forming a deflectable flange including a bend region separated from the potentially sharp peripheral edge by a spacer, deflecting a portion of the deflectable flange, and softening at least one bent portion of the deflectable flange to yield a smooth periphery upon cooling.