摘要:
A vertical form fill and seal system supports a sheet of material having material segments and a tube sized for drawing edges of the elongated sheet of material together in an overlapping configuration to form the sheet into a substantially tube shape. The VFFS also includes a sealer that seals the edges of the material to one another and a gusseting mechanism sized for forming a gusseted tuck in each of a left panel portion of the material and a right panel portion of the material. A cutting mechanism removes a first portion and a second portion of a first segment of the material segments in order to form a first cut and a second cut in the first segment and a sealing mechanism folds and seals the first segment at the first cut and at the second cut to provide an end wall with a substantially flat, rectangular-shaped footprint.
摘要:
A vertical form fill and seal system supports a sheet of material having material segments and a tube sized for drawing edges of the elongated sheet of material together in an overlapping configuration to form the sheet into a substantially tube shape. The VFFS also includes a sealer that seals the edges of the material to one another and a gusseting mechanism sized for forming a gusseted tuck in each of a left panel portion of the material and a right panel portion of the material. A cutting mechanism removes a first portion and a second portion of a first segment of the material segments in order to form a first cut and a second cut in the first segment and a sealing mechanism folds and seals the first segment at the first cut and at the second cut to provide an end wall with a substantially flat, rectangular-shaped footprint.
摘要:
A device and method for producing sanitary articles of the pre-closed pant type (10) comprising the steps of: folding longitudinally in two a composite web (100), formed by a chain of blanks of absorbent sanitary products (10), which advance in a longitudinal direction (A), so as to form a continuous longitudinal portion of web and a discontinuous portion of web, the continuous portion comprising the waist regions, the discontinuous portion being basically constituted by the absorbent insert; welding (40) the continuous portion (38) of the web (100) with welding lines (13) transverse to the longitudinal direction of advance (A) so as to form the circumference of the waist and the openings for the legs (11); of the sanitary article (10); conveying (50) the composite web (100) through the welding station (40), maintaining a positive grip of the discontinuous portions (39) of said composite web (100); feeding the cutting station (60) with said composite web (100), maintaining the positive grip of the discontinuous portions (39) of said composite web (100); and cutting said composite web (100) to separate the individual sanitary articles (10) from one another.
摘要:
A packaging apparatus including a rotary jaw device, the rotary jaw device comprising an elongate holder, an elongate knife mounted on and projecting outwardly from the elongate holder, the knife having an elongate cutting edge parallel to a plane of the knife, and at least one part of a heat seal device located on the elongate holder on opposed sides of the knife. A packaging method is also disclosed.
摘要:
An anvil has a temperature adjustment mechanism including a heater. The anvil has a heat transmitter transmitting heat generated by the temperature adjustment mechanism. The anvil has a temperature sensor detecting a temperature of an anvil attachment portion in which the anvil of rotating drum installed. The ultrasonic joining apparatus includes a controller configured to control a temperature to which the rotating drum should be heated by the temperature adjustment mechanism. The controller controls a heat generation amount of the temperature adjustment mechanism on the basis of a detection result by the temperature sensor. The temperature adjustment mechanism and the heat transmitter are installed in each of the multiple anvils.
摘要:
A sealing apparatus includes an anvil of a sealing abutment surface, which is driven to circulate with a constant peripheral velocity, and an ultrasonic horn of a sealing abutment surface, which is driven to reciprocate with varying velocities. Since the relative velocity of a soft workpiece moving along with the anvil against the sealing abutment surface of the ultrasonic horn can be made low, a sealing energy from the ultrasonic horn may be applied to the soft workpiece sufficiently long.
摘要:
A sealing assembly is employed to clamp together layers of a layered web, such as two layers of flexible laminate plastic film, and to bond and cut the layers by applying heat and pressure. The sealing assembly may include a pair of jaws, one of which has a sealing head with a conductive knife protruding from a tapered dielectric supporting base. The knife has a high thermal conductivity relative to the supporting base. A current supplied through the knife heats it and the heat of the knife raises the temperature of the supporting base to a baseline temperature. When the head abuts the layered web, a spike current through the knife raises its temperature momentarily to melt through, and therefore sever, the web.
摘要:
Apparatus for processing continuously fed elongate material, such as forming sealed bags from continuously fed film tubes, uses at least one pair of orbital tools that are cantilevered from tool drives (e.g., crank arms) at one edge of the material, extending transversely across the direction of material travel to engage opposite faces of the material. During material engagement the tools run synchronously with the moving material, but may be returned upstream rapidly to reengage the material for the next processing cycle. In order to achieve a higher throughput an additional pair of tools can be used, cantilevered and driven from the opposite edge of the material, maintaining the same processing (e.g., sealing) time. Through this arrangement the tools on opposing sides can alternate contact with the material and be run independently of each other.
摘要:
Apparatus for processing continuously fed elongate material, such as forming sealed bags from continuously fed film tubes, uses at least one pair of orbital tools that are cantilevered from tool drives (e.g., crank arms) at one edge of the material, extending transversely across the direction of material travel to engage opposite faces of the material. During material engagement the tools run synchronously with the moving material, but may be returned upstream rapidly to reengage the material for the next processing cycle. In order to achieve a higher throughput an additional pair of tools can be used, cantilevered and driven from the opposite edge of the material, maintaining the same processing (e.g., sealing) time. Through this arrangement the tools on opposing sides can alternate contact with the material and be run independently of each other.
摘要:
Disclosed is a novel process for splicing webs of pressure sensitive laminate material. When webs of pressure sensitive laminates are spliced by conventional methods and wound into rolls, the resultant splices must be located and removed when the roll is later converted into pressure sensitive products. The novel splice is achieved by eliminating the top tape used in a conventional splice and overlapping a face sheet of one laminate web over the other laminate web to join the webs. For many processes, this novel splice is printable and does not have to be edited out, and it is at least as strong as those made with tapes. Also disclosed is a novel spliced pressure sensitive laminate.