Lako Tool & Manufacturing, Inc.

Other

Testing Machines, Inc.

Larry E Smith

Louis M Montano

William Witzler

A split crimper for use in a crimping assembly for engaging and heat sealing overlapping layers of a packaging material includes a first crimper portion having a crimping surface and a second crimper portion that is secured to the first crimper portion to form a crimper. Portions of the first and second crimper portions cooperate to define an interior cavity, and a heating element is disposed completely within the interior cavity.

Split crimper for heat sealing packaging material

A punch assembly is provided in a form, fill, and seal machine that provides a package that includes a sealed end portion and contains an article. The punch assembly includes a housing, and a heat sink provided in and retained by the housing, where the heat sink includes a punch tip that is to provide an opening in the sealed end portion of the package. The punch assembly also includes a coil heater contacting the heat sink to provide heat to the heat sink and the punch tip, where one or more air gaps are provided between the housing and the heat sink to prevent heat transfer from the heat sink to a seal jaw assembly of the form, fill, and seal machine.

Hot punch assembly for providing an opening in packaging material

A crimper assembly forms end seals in overlapping portions of the sheet of packaging material after being folded about an article. The crimper assembly includes a crimper including a base, an insert that is formed from a resilient material, and a support plate that is formed from a rigid material. The insert has a surface that is adapted to engage and seal overlapping layers of a packaging material. The insert is disposed between the base and the support plate. The support plate is secured to the body to retain and support the insert thereon. The insert and the support plate may be formed as separate pieces or may be secured together as a single piece. To prevent excessive compression of the insert, the insert can have an aperture formed therethrough, and the support plate can have a protrusion formed thereon that extends through the aperture into abutment with the base. Alternatively, the insert can include a pair of bushings, and such bushings are engaged between the base and the support plate to prevent excessive compression.

Crimper assembly for sealing overlapping portions of a sheet of packaging material

A crimper assembly includes upper and lower crimper bars which are rotated relative to a sheet of packaging material. A pair of upper crimpers are secured to opposite sides of the upper crimper bar, while a pair of lower crimpers are secured to opposite sides of the lower crimper bars. Each of the upper crimpers includes a metallic base having an outwardly facing portion with an undulating cross sectional shape. A slot is formed in the outwardly facing portion of the upper crimper, and a cutting blade is retained therein. In a first embodiment, an insert is secured to the base of each of the upper crimpers. The insert includes a rigid shank having a lip portion extending therefrom. Portions of the outer surface of the shank are covered by a layer of a relatively resilient material. The layer is formed from a material which is suitable for compressing overlapping portions of the folded sheet of packaging material to form an intermeshing seal pattern. The outwardly facing portion of the layer of resilient material includes a longitudinally extending, outwardly facing resilient crimping surface with an undulating cross sectional shape. The lower crimpers are formed in a similar manner, except that an anvil is retained within the slot. During operation, the crimpers are rotated such that the folded sheet of packaging material is compressed between the downwardly facing undulating surface of the upper resilient layer and the upwardly facing undulating surface of the lower base. As a result, the overlapping layers which make up the folded sheet of packaging material are sealed together to form a trailing edge seal for a packaged article.

A crimper assembly includes upper and lower crimper bars which are rotated relative to a sheet of packaging material. A pair of upper crimpers are secured to opposite sides of the upper crimper bar, while a pair of lower crimpers are secured to opposite sides of the lower crimper bars. Each of the upper crimpers includes a metallic base having an outwardly facing portion with an undulating cross sectional shape. A slot is formed in the outwardly facing portion of the upper crimper, and a cutting blade is retained therein. In a first embodiment, an insert is secured to the base of each of the upper crimpers. The insert includes a rigid shank having a lip portion extending therefrom. Portions of the outer surface of the shank are covered by a layer of a relatively resilient material. The layer is formed from a material which is suitable for compressing overlapping portions of the folded sheet of packaging material to form an intermeshing seal patter. The outwardly facing portion of the layer of resilient material includes a longitudinally extending, outwardly facing resilient crimping surface with an undulating cross sectional shape. The lower crimpers are formed in a similar manner, except that an anvil is retained within the slot. During operation, the crimpers are rotated such that the folded sheet of packaging material is compressed between the downwardly facing undulating surface of the upper resilient layer and the upwardly facing undulating surface of the lower base.

Crimper assembly for sealing overlapping portions of a sheet of

In continuous packaging of comestibles in individual packages of thermo plastic sheet material, elongate, reciprocating crimper bars or dies simultaneously sever the packages and inpart end crimp seals to the packages but unfortunately featuring a high rate of rejects overcome by a special contour in the surface of one of the said crimper dies, according to present discovery.

Growing community of inventors

Perrysburg, OH, United States of America

Larry E Smith