Unwinding mechanism for roll-shaped web member

A technology for rolls and webs, applied in the direction of winding strips, thin material handling, transportation and packaging, etc., can solve the problems of increasing operating time, reducing the durability of circulating elements, waste, etc., achieving simple and reliable mechanism, and improving work. Efficiency, the effect of reducing operation steps

CN111056345APending Publication Date: 2020-04-24FOSHAN BAOSUO PAPER MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-04-24

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Abstract

The invention discloses an unwinding mechanism for a roll-shaped web member. The unwinding mechanism comprises a first circulating element used for driving a winding drum to rotate at a first unwinding position, a winding drum displacement mechanism used for driving the winding drum to move from the first unwinding position to a second unwinding position, a second circulating element enabling thewinding drum to keep rotating in the moving process of the winding drum, and a second moving mechanism used for driving the second circulating element to move along with the winding drum. The unwinding mechanism has the advantages that a standby position special for placing a new winding drum does not need to be arranged, rotation of the winding drum does not need to be maintained through tensiledeformation of the circulating elements in the moving process of the winding drum, the mechanism is simplified, the durability of the circulating elements is improved, the space occupied by the mechanism is reduced, and working efficiency is improved.
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Description

technical field

[0001] The present invention relates to a mechanism for withdrawing a web wound into a roll from a roll. Background technique

[0002] In the production process of toilet paper rolls, folded paper towels, non-woven fabric rolls, etc., it is often necessary to use an unwinding mechanism to withdraw paper, non-woven fabrics, etc. for further processing.

[0003] During the working process of the unwinding mechanism, there is a handover process in which a new reel replaces the previous reel, that is, when the previous reel is about to finish unwinding, the new reel replaces the previous reel. In order to improve the operating efficiency of this handover process, the invention patent named "Reel Unwinding Machine and Unwinding Method" and patent No. 2012800656895 provides a design scheme. This design scheme can complete the process of the new reel replacing the previous reel without stopping the rotation of the previous reel.

[0004] However, the design schem...

Examples

Embodiment 1

[0038] see figure 1 , the unwinding mechanism of the roll-shaped web includes a first circulation element 1 that drives the reel 2 to rotate at the first unwinding position Q1, and drives the reel 2 to move from the first unwinding position Q1 to the second unwinding position Q2 The reel displacement mechanism.

[0039] Specifically, the first circulating element 1 is a circulating belt, and the reel 2 is driven to rotate in an unwinding direction by virtue of the frictional force between it and the reel 2 . The reel 2 is wound from a web. The web 3 is withdrawn from the reel 2 as the reel 2 rotates in the unwinding direction. The web can be, but is not limited to, paper, nonwovens, and the like. It should be noted that although the reel and the web are drawn in the drawings of the present invention, the reel and the web are not structural components of the present invention, but are only the operation objects of the unwinding mechanism of the present invention.

[0040] S...

Embodiment 2

[0074]see Figure 10 The difference between the structure of this embodiment and the first embodiment is that the kicking hook 11 and the groove 10 on the frame of the first embodiment are cancelled, the shape of the lifting hook 5 is different, and the slider 4 and the lifting hook 5 are respectively connected Roller 15, roller 16 are arranged.

[0075] The difference between the action principle of this embodiment and the first embodiment is that no matter whether the reel is in the first unwinding position Q1 or the second unwinding position Q2, or when the reel moves from the first unwinding position Q1 to the second unwinding position During the process of Q2, the central axis of the reel is clamped by rollers 15 and 16.

[0076] The structure and action principles not described in detail in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0077] It should be noted that, according to different types of web products, some reels are ...