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Machine for the production of bags made of heat-sealed alveolar or foamed thermoplastic material

A thermoplastic material and machine technology, used in envelope/bag manufacturing machinery, bag making operations, container manufacturing machinery, etc., can solve problems such as high cost, complexity, and low production rate

Inactive Publication Date: 2008-11-26
OFFMAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This arrangement causes significant hindrances, so that the overall longitudinal dimensions of the machine are sometimes not compatible with the space available at its place of use
[0005] In addition, the system of reciprocating linear movement of the heat-sealing assembly limits the speed of advancement of the continuous strip, resulting in a relatively low production rate, and is often complicated and costly due to structural factors.

Method used

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  • Machine for the production of bags made of heat-sealed alveolar or foamed thermoplastic material
  • Machine for the production of bags made of heat-sealed alveolar or foamed thermoplastic material
  • Machine for the production of bags made of heat-sealed alveolar or foamed thermoplastic material

Examples

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Embodiment Construction

[0019] first refer to figure 1 and FIG. 3 , the machine of the invention basically comprises a support structure 1 and a pull-and-fold assembly denoted 3 as a whole. The support structure 1 has less horizontal hindrance and supports the heat-sealed assembly indicated at 2 as a whole; At the sides of the support structure 1 there is provided a cabinet in which is housed a programmable electronic control unit 5 for controlling the operation of the above-mentioned machine.

[0020] As shown schematically in Figure 3, uncoiling device 6 is connected to the rear side of the machine for unwinding at least one continuous strip N uncoiled from reel R, which strip N is a thermoplastic material, usually in the form of a bubble (i.e., Polyethylene with bubbles) or foamed polyethylene. Depending on the width of the machine, an uncoiling device 6 can be prearranged for unwinding strips N of different widths as well as two or more strips N. The example described concerns precisely the ca...

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PUM

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Abstract

A machine for production of bags (S) with at least one continuous tape (N) having superposed sheets (L) and fed continuously to a heat-sealing assembly (2) is disclosed, the bags (S) is made of alveolar or foamed plastic materials. The heat-sealing assembly (2) is actuated according to a pendular motion in synchronism with continuous advance of the tape (N), and is pre-arranged for carrying out, at the same time of heat-sealing, half-cuts (T) on the tape (N), and then the tape (N) is folded in telescopic way by means of a folded assembly at output of the machine.

Description

technical field [0001] The present invention generally relates to the production of containers in the form of bags or the like made of heat-sealable plastics material. More specifically, the invention relates to a machine for producing such containers from at least one continuous strip with superimposed flaps, usually made of bubbled or foamed polyethylene and Continuously fed to heat seal assembly. Background technique [0002] In currently known machines of this type, the heat-sealing assembly includes heat blade means and contrast elements arranged transversely on opposite sides of the web, and also includes Actuating means for controlling the movement of the heat seal assembly and for controlling the mutual opening and closing of the heat blade means and the counter element. [0003] In these known machines, the heat-sealing assembly is usually mounted on slides or carriages capable of translating in a reciprocating linear motion parallel to the direction of advancemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B31B27/60B31B27/14B31B50/64
CPCB31B2237/40B65D75/44B31B19/64B31B2219/603B29C66/8511B29C65/18B31B2219/14B29C66/232B29C2793/0081B29L2031/7128B31B2237/10B29C65/7457B29C66/8226B31B23/00B29C66/8225B31B2237/406B29C2793/0045B29K2023/06B29C66/8762B29K2101/12B29C66/727B29K2105/04B29C66/83543B29C66/431B29C66/1122B29C66/73921B29C66/8432B29C66/71B29C66/8221B29C66/82263B29C66/82265B31B70/00B31B2160/10B31B70/14B31B70/64B31B2155/00B31B2155/001B31B2155/0014B31B2160/106B29C43/02B29C43/38B29C65/02B29C65/74
Inventor 埃米利亚诺·玛塔路易吉·玛塔
Owner OFFMAR
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