| 摘要 |
The vacuum suction cup prevents the holding products wrapped by the packing film from separating off the cup due to the air between the product and the packing film. The vacuum suction cup(105) has the suction hole(103), the hole support(104), the suction hole surface(102), and the elastic cup wall part(101). To remove the air between the product and the film, the cup includes a screw pin(107) which has a gimlet(108) at the front end having an air outlet(109) through the pin(107) to discharge the air between the product and the film when the cup is applied to the product for the gimlet to pierce the film.
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