Abstract:
The invention relates to the Cardboard Industry. More specially it relates to a machine for manufacturing of display packages of the type comprising an opening straddling at least one edge and which is closed by a stiff, transparent sheet of plastic material. The device according the present invention comprises a horizontal circular plate, a plurality of work stations which feed the suction boxes positioned on the said plate which permit to move the blanks from one of the work stations to the other. It comprises at least stations for the cardboard blanks, for the plastic blanks, for the coating of the blanks, for the sealing and/or grooving of the plastic blanks and for picking up the assembled blanks.
Abstract:
The present invention relates to a method and apparatus for making display boxes having windows made of substantially rigid plastic material. The boxes comprise substantially rigid opaque material, such as paperboard, in combination with substantially rigid plastic material. The substantially rigid plastic material includes at least one fold line or groove which cooperates with a fold line in the opaque material when the box is set up. The present invention provides a method and means for making such boxes in a single machine from a supply of blanks of the opaque material and a roll of ungrooved plastic material. The machine comprises means for feeding of the opaque blanks, feeding of a length of the plastic material, means for forming at least one groove in the length of plastic material, means for cutting the grooved plastic material into sheets, and means for juxtaposing and joining the blanks of opaque material and the cut plastic sheets of material.
Abstract:
The present invention relates to a method and apparatus for making display boxes having windows made of substantially rigid plastic material. The boxes comprise substantially rigid opaque material, such as paperboard, in combination with substantially rigid plastic material. The substantially rigid plastic material includes at least one fold line or groove which cooperates with a fold line in the opaque material when the box is set up. The present invention provides a method and means for making such boxes in a single machine from a supply of blanks of the opaque material and a roll of ungrooved plastic material. The machine comprises means for feeding of the opaque blanks, feeding of a length of the plastic material, means for least one groove in the length of plastic material, means for forming at cutting the grooved plastic material into sheets, and means for juxtaposing and joining the blanks of opaque material and the cut plastic sheets of material.
Abstract:
The present invention relates to a method and apparatus for making display boxes having windows made of substantially rigid plastic material. The boxes comprise substantially rigid opaque material, such as paperboard, in combination with substantially rigid plastic material. The substantially rigid plastic material includes at least one fold line or groove which cooperates with a fold line in the opaque material when the box is set up. The present invention provides a method and apparatus for making such boxes from a supply of sheets of the opaque material and a supply of sheets of the plastic material. The method comprises the steps of supplying a sheet of opaque material with an opening, positioning a supplied sheet of plastic material into juxtaposition with the sheet of opaque material to cover the opening, adhering the plastic material to the opaque material, and forming groove lines in the plastic and opaque sheets to permit folding of the sheets along aligned groove lines.
Abstract:
This invention relates to a display box of the kind comprising a part of an opaque material such as cardboard and an opening overlapping or straddling at least one edge of the box and which is shut off by a sheet of a plastics material. According to the invention the sheet is formed from a rigid plastics material.The sheet may be formed by a single sheet and have two preparatory or incipient folds produced by pre-scoring or pre-grooving along the lines corresponding to the edges which are to be produced, the edges of the plastics sheet having notches at the extremities of each incipient fold.The invention also provides a method of and apparatus for manufacturing the box.
Abstract:
This invention relates to a display box of the kind comprising a part of an opaque material such as cardboard and an opening overlapping or straddling at least one edge of the box and which is shut off by a sheet of a plastics material. According to the invention the sheet is formed from a rigid plastics material. The sheet may be formed by a single sheet and have two preparatory or incipient folds produced by pre-scoring or pre-grooving along the lines corresponding to the edges which are to be produced, the edges of the plastics sheet having notches at the extremities of each incipient fold. The invention also provides a method of and apparatus for manufacturing the box.