B31B50/592

METHOD AND APPARATUS FOR DEEP-DRAWING A TRAY FROM SHEET MATERIAL

The invention relates to a method and an apparatus for deep-drawing a tray (1) from a blank of sheet material (2). The blank is provided with score lines, which determine the location of wrinkles formed in the process. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bot-tom outwardly, a male moulding tool (4), which comprises a plunger (11) for form-ing the tray bottom inwardly, the plunger being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet ma-terial and forming a tray rim flange. According to the invention by laterally distanc-ing at least one of the moulding tools (3, 4) from the sheet material leeway is pro-vided for free forming so that wrinkling of the tray side walls is achieved in a con-trolled manner. Spacer plates (13) may be positioned behind the plunger (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) therebelow, or screw means may be provided for adjusting the distance of the bottom of the cavi-ty from the clamp interface and thereby varying the depth of the tray.

Method and apparatus for deep-drawing a tray from sheet material

The invention relates to a method and an apparatus for deep-drawing a tray (1) from a blank of sheet material (2). The blank is provided with score lines, which determine the location of wrinkles formed in the process. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bottom outwardly, a male moulding tool (4), which comprises a plunger (11) for forming the tray bottom inwardly, the plunger being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet material and forming a tray rim flange. According to the invention by laterally distancing at least one of the moulding tools (3, 4) from the sheet material leeway is pro-vided for free forming so that wrinkling of the tray side walls is achieved in a controlled manner. Spacer plates (13) may be positioned behind the plunger (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) therebelow, or screw means may be provided for adjusting the distance of the bottom of the cavity from the clamp interface and thereby varying the depth of the tray.

Nestable container with uniform stacking features

Various embodiments of flanged containers that can be stacked in a nested relationship are disclosed so as to provide uniform spacing between the containers to facilitate reliable denesting thereof. The flanges and/or sidewalls of the containers may be provided with features that facilitate alignment and uniform spacing of the nested containers so that a denesting apparatus can reliably denest the containers. Other containers include sidewalls divided into two sections that serve to stabilize stacked container.

Tool for forming a three dimensional article or container

A forming tool assembly and method for forming a cooking element. The forming tool assembly has an upper tool assembly and a lower tool assembly that cooperate to shape the cooking element from an annular cutout.

Flange Stabilizer for a Shaped Article of Fiber Material, Shaped Article, Method for Making a Shaped Article, and Use of a Flange Stabilizer
20210387427 · 2021-12-16 ·

A shaped article, a method for making it, and its use. The shaped article is formed from flat fiber material and has a bottom (2), a body (4), and an opening, which is surrounded by a circumferential flange (6). The shaped article (1) comprises a flange stabilizer (10) attached to the second flat side (18) of the flange (6) facing the bottom (2). The flange stabilizer (10) is disc-shaped and has an inner contour (12) corresponding to the desired cross-sectional shape of the shaped article (1) in the region of the opening and can be slipped over the body (4) in the region of the bottom (2) and up to the flange (6). The flat sides (16, 18) of the flange stabilizer (10) extend essentially parallel to the flange (6), defining and stabilizing the cross-sectional shape of the body (4) in the region of the opening and the flange.

Rim flattener apparatus and method
11331874 · 2022-05-17 · ·

An apparatus for forming an upper edge of a paperboard container includes a pocket including a shell having a cavity with a mouth configured to receive the container along an axis such that the rim extends beyond the mouth. A workstation includes a forming member having a first forming surface which is actuatable toward the axis from a retracted position spaced from the rim to an extended position lying adjacent an upper end of the rim, and a forming segment having a second forming surface which is actuatable along the axis and the forming member in response to axial movement thereof such that the second forming surface is positioned spaced from a lower end of the rim. The second forming surface is actuatable along the axis towards the first forming surface to form the rim therebetween.

COATED PAPERBOARD CONTAINER, METHOD OF MANUFACTURING A COATED PAPERBOARD CONTAINER, AND CUP BOTTOM FORMING APPARATUS

A method of manufacturing a coated paperboard container includes: providing a coated paperboard bottom blank, the coated paperboard bottom blank comprising a paperboard substrate and a first barrier coating layer on a first outermost surface of the paperboard substrate; heating the coated paperboard bottom blank; shaping the heated coated paperboard bottom blank, thereby forming a peripheral skirt portion about a periphery of a bottom wall portion of the coated paperboard bottom blank; and sealing a coated paperboard sidewall to the first barrier coating layer of the peripheral skirt portion.

Method for producing a cellulose product
11717993 · 2023-08-08 · ·

A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100° C. to 300° C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.

SYSTEM FOR DESTACKING CARTON BLANKS

A system for destacking carton blanks comprises a stacking magazine for receiving a stack of carton blanks, the stacking magazine having a retaining system. The system for destacking carton blanks further comprises a first die comprising a first cavity for shaping the carton blanks, and a transport device with at least one first gripping unit for gripping and displacing carton blanks. The transport device is configured to grip a carton blank from the stack, transport the carton blank into the first cavity and form the carton blank by exerting a force.

DESTACKING SYSTEM FOR CARDBOARD BLANKS

A destacking system for cardboard blanks comprises a deposition unit for cardboard blanks with first and second deposition positions, a first destacker comprising a first stacking magazine for accommodating a first stack of cardboard blanks, a first retaining system for retaining the cardboard blanks at a first stacking position, and a first conveying unit with a first gripper to grip a first cardboard blank of the first destacker at the first stacking position and convey the first cardboard blank to the first deposition position, a second destacker comprising a second stacking magazine for accommodating a second stack of cardboard blanks, a second retaining system for retaining the cardboard blanks at a second stacking position, and a second conveying unit with a second gripper configured to grip a second cardboard blank of the second destacker at the second stacking position and convey the second cardboard blank to the second deposition position.