Packing material tension keeping structure
A tension maintenance and packaging material technology, applied in the field of packaging, can solve the problems of unmaintained surface tension, unqualified packaging products, loose feeding materials, etc., to achieve the effect of strong hardness, weakening restrictions, and light weight
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Embodiment 1
[0016] Such as figure 1 As shown, the present embodiment includes a guide roller 3 and a speed-limiting mechanism, and the guide roller 3 and the speed-limiting mechanism are respectively arranged on an external packaging machine 9, and the speed-limiting mechanism includes a support rod 1, a hand wheel 6, a connecting rod 2 and Press down device, one end of support rod 1 is hinged with the press down device through connecting rod 2, and the other end of support rod 1 is threadedly connected with handwheel 6. The guide roller 3 is spaced from the cylinder 8 of the external packaging machine 9 at a certain distance, so that the packaging material 7 maintains a certain tension. And the speed limiting mechanism can control the rotational speed of the cylinder 8 of the external packaging machine 9, which plays the role of speed limiting; turning the hand wheel 6 drives the support rod 1 to rotate, so that the pressing device moves up and down under the linkage effect of the connec...
Embodiment 2
[0018] Such as figure 1 As shown, this embodiment is based on Embodiment 1, and the pressing device includes a roller 5 and a wheel handle 4 connected to each other, and the wheel handle 4 is connected to the support rod 1 through the connecting rod 2 . The set roller 5 can move together with the roller 8 of the external packaging machine 9, and the interaction force between the roller 5 and the roller 8 can be adjusted by adjusting the handwheel 6. The greater the frictional force between them, the greater the restriction on the speed at which the cylinder 8 rotates, and vice versa.
Embodiment 3
[0020] Such as figure 1 As shown, this embodiment is based on Embodiment 1 and Embodiment 2. As a preference, the roller 5 is a plastic roller. The texture of the plastic roller 5 is relatively soft, and when the relative force between the roller 5 and the roller 8 is relatively large, the roller 5 will not cause damage, imprints and other interference to the packaging material 7 .
[0021] Preferably, the connecting rod 2 is made of aluminum alloy. The connecting rod 2 is arranged between the pressing device and the support rod 1, and is used to connect and support the pressing device. The aluminum alloy material has strong hardness and light weight, which reduces the labor intensity when turning the handwheel 6. It also effectively avoids phenomena such as breakage and fracture of the connecting rod 2 .
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