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Unwinding device

A technology of unwinding device and paper roll, which is applied in the direction of winding strips, transportation and packaging, thin material processing, etc., and can solve problems affecting production continuity, tearing, and inaccurate paper unwinding control, etc.

Active Publication Date: 2016-04-27
肇庆北新建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an unwinding device, the purpose of which is to solve the problem that the unwinding control of the existing unwinding device is not accurate enough, and the paper tape is easily wrinkled or torn in the gap between two groups of gypsum boards, which affects the continuous production. sex

Method used

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Examples

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Embodiment Construction

[0027] In order to make the purpose, technical solutions, and beneficial effects of the present invention clearer, the embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and the embodiments in the present application The features in can be combined with each other arbitrarily.

[0028] The core idea of ​​the present application is that a friction pair is formed between the rotating part and the fixed part by providing a friction plate. When the paper roll starts to unwind, due to friction, a certain pulling force must be passed to unwind. When the unwinding stops, the paper roll will slowly stop unwinding under the action of the friction plate to prevent the paper roll from being suddenly decelerated due to the rotating part. Caused paper rolls to pile up before the next plasterboard.

[0029] Such as figure 2 As shown, a gypsum board edge banding paper ro...

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Abstract

The invention relates to an unwinding device. The unwinding device comprises a horizontally arranged base, a fixed part and a rotating part; the fixed part is fixedly connected with the base; and the rotating part is arranged on the fixed part in a sleeving way, and performs circularmotion around the fixed part. The unwinding device is characterized by further comprising friction pieces; the friction pieces are fixed on opposite surfaces of the rotating part and the fixed part; a friction pair is formed between the rotating part and the fixed part; and springs are arranged between the friction pieces and the rotating part or the fixed part. The unwinding device prevents the problems of influence on the edge wrapping effect of later sets of gypsum boards and easy paper blockage caused by longer paper strips in a loose state when the later sets of gypsum boards reach the edge wrapping position due to a continuing unwinding action because of inertia after previous sets of gypsum boards exceed the edge wrapping position.

Description

Technical field [0001] The invention relates to an unwinding device used in production, in particular to an edge-sealing paper unwinding device in the production process of gypsum board. Background technique [0002] Gypsum board edge sealing is one of the later processes of gypsum board processing. The main purpose is to protect the end of the board through edge sealing to prevent damage to the board edge during transportation and handling, which affects the use. The unwinding and unwinding process of the edge banding tape is passive, that is, the paper tape is stuck to the gypsum board through the paper tape, and the paper tape is unrolled by the movement of the gypsum board. [0003] Existing unwinding devices such as figure 1 As shown, the paper roll 1 is sleeved on the first mandrel 3, the first mandrel 3 is sleeved on the fixed shaft 2 and the bottom surface is in contact with the nylon plate 4 installed on the top surface of the base chassis 5, and the paper roll 1 and the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H23/06B65H16/02
Inventor 王晓法
Owner 肇庆北新建材有限公司