发明名称 |
HEAT-SEALING STRAPPING MACHINE |
摘要 |
There is disclosed a strapping machine for applying a plastic strap around an object, tensioning the strap and heat-sealing together overlapping portions of the strap, including a retractable heating member movable between the overlapping strap portions and a pressure-applying means including a pressure block with a tiltable universal joint coupling for pressing the overlapping strap portions against the heating element with a first relatively light pressure to melt the facing surfaces thereof. The heating element is withdrawn while the pressure-applying means presses the strap thereagainst with the first pressure, and then the melted strap portions are pressed together with a strong second pressure to complete the seal. A cam with a yieldable section controls the first pressure and a compression spring controls the second pressure. While retracted, the heating element is raised to a higher temperature for burn-off of strap residues. Switch means disposed in the strap path provide a positive stop to prevent strap overfeed while a yieldable track section permits escape of excess strap from the path to prevent jamming. Air filter means remove waste products of the heatsealing operation. |
申请公布号 |
CA1141648(A) |
申请公布日期 |
1983.02.22 |
申请号 |
CA19800353240 |
申请日期 |
1980.06.03 |
申请人 |
INTERLAKE, INC. |
发明人 |
MOSSELL, ALAN T.;SIMMONS, JAMES R.;MIDDLETON, CHARLES G. |
分类号 |
B29C65/00;B29C65/20;B65B13/32 |
主分类号 |
B29C65/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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