A strip material unwinding device
A technology of unwinding device and materials, which is applied in the direction of thin material processing, coiling strips, transportation and packaging, etc. It can solve the problems of low cost and inability to effectively control the tension of materials, and achieves low cost, simple structure, and realization The effect of material tension
Active Publication Date: 2017-09-29
CHONGQING MIDEA REFRIGERATION EQUIP CO LTD +2
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Problems solved by technology
[0006] The purpose of the present invention is to provide a strip-shaped material unwinding device with simple structure and low cost, and to solve the problem that the existing tensioning and material temporary storage mechanism cannot effectively control the tension force of the material during the unwinding process
Method used
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Embodiment Construction
[0025] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0026] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. ...
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The invention relates to the field of strip-shaped material conveying, and provides a strip-shaped material unwinding device. According to the strip-shaped material unwinding device, a first friction piece is fixedly arranged on a first wheel shaft of an unwinding roll wheel. A second friction piece is fixedly arranged on the first rod section of a lever, and a tensioning roll wheel is installed on the second rod section of the lever. The tensioning roll wheel bears tensioning force of materials. When the value of the tensioning force is larger than a first critical value, the lever rotates in the forward direction and enables the second friction piece to be separated from the first friction piece, and when the value of the tensioning force is smaller than a second critical value, the lever rotates in the reverse direction until the second friction piece makes contact with the first friction piece. According to the scheme, when the second friction piece and the first friction piece are separated, the unwinding roll wheel can smoothly conduct material unwinding, when material unwinding is excessive, the lever rotates in the reverse direction to conduct material storage, and when material unwinding needs to be stopped, the lever rotates in the reverse direction until the second friction piece and the first friction piece make contact with each other. The strip-shaped material unwinding device is simple in structure and low in cost, and can achieve material tensioning and material storage through upward and downward swing of the lever.
Description
technical field [0001] The invention relates to the field of strip material transmission, in particular to a strip material unwinding device. Background technique [0002] There are many types of strip materials, such as label paper, adhesive tape, disposable plastic bags, etc., which are more common in daily life, and the strip materials are generally arranged in a roll shape. And the unwinding of these roll-shaped strip materials is generally difficult to control. [0003] Taking label paper as an example, in the intermittent transmission process of label paper, in order to ensure the reliability of subsequent operations, it is necessary to reasonably release the material while controlling the tension of the material. At present, the above requirements are mainly realized through the tensioning and material temporary storage mechanism. In the prior art, the tensioning and material temporary storage mechanism mostly adopts the spring-swing rod method, and its specific for...
Claims
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IPC IPC(8): B65H23/188B65H23/26B65H16/04
CPCB65H16/04B65H23/1888B65H23/26
Inventor 侯峰郭子氚
Owner CHONGQING MIDEA REFRIGERATION EQUIP CO LTD