CN2097192U

CN2097192U - Rewinder

Info

Publication number: CN2097192U
Application number: CN 90224529
Authority: CN
Inventors: 张才良; 张炽扬; 华辛刚
Original assignee: CHANGZHOU LIGHT INDUSTRY MACHINERY PLANT
Current assignee: CHANGZHOU LIGHT INDUSTRY MACHINERY PLANT
Priority date: 1990-12-08
Filing date: 1990-12-08
Publication date: 1992-02-26

Abstract

The utility model discloses a rewinder used for making paper, which is characterized in that a paper web tension controlling device is composed of a tension controlling executor (2), a tension sensor (3) and a radius sensor (7) or composed of the tension controlling executor (2) and the radius sensor (7). The paper web tension controlling device can stably control paper web tension and makes paper web tension reduce with the increase of the diameter of a roll paper tube and a finished roll even, so as to get the high-quality paper roll with the tight inner part and the loose outer part. The cost of the rewinder is low, which is 1/50 to 1/40 of the cost of a foreign rewinder having same performance.

Description

Rewinder

The utility model relates to a kind of papermaking equipment, particularly a kind of rewinding device.

At present the rewinding machine that uses is generally all by moving back web roll, mechanical hatching gate, and jockey pulley, air roll, winding roll, two anvil rolls etc. are formed.Web tension is manually controlled by mechanical hatching gate, therefore, even the operator has experience preferably owing to can not keep constant tension force, paper roll with regard to the time pine when tight, produce star pleat, lax, disadvantage such as garden not, and influence the smooth bundling of paper roll.Air roll pressure does not increase along with coil paper paper web diameter and reduces, and therefore, nip pressure increases along with the increase of reel diameter, can produce the outer tight abnormality of pine in the paper roll.Utility model rewinding machine (notification number CN2054026U), replaced mechanical hatching gate with electromagnetic slip clutches, apply an opposing torque to moving back web roll, move back the rotating speed of web roll in order to control, make the tension force of paper web obtain adjusting, its shortcoming is the speed control difficulty, and volume is big, the high quality finished roll of tight outer pine in can not being rolled into equally.Another kind of rewinding machine is to adopt by dynamo generator--the drg that DC motor or pneumatic hydraulic system are formed constitutes the constant automatic control device of web tension together with tension pick-up; Anvil roll is the electronics transmission, and its speed difference or difference in torque are programme controlled control setup.But, this device construction complexity, the rewinding machine of import that involves great expense reaches 800,000 dollars.

The purpose of this utility model is to overcome above-mentioned weak point a kind of rewinding machine is provided, it can stably control web tension, and web tension increased along with coil paper paper web diameter and reduce, make finished roll reach in the quality product requirement of tight outer pine, and its cost is lower.

The purpose of this utility model realizes by the following method, it is by moving back web roll (1), jockey pulley (4), air roll (5), winding roll (6), anvil roll (8), anvil roll (9) and web tension control system, power conveying system is formed, and it is characterized in that the web tension control setup by the Tension Control actr (2) that moves back on the web roll (1), tension pick-up (3) on the jockey pulley (4) and the radius sensor (7) on the winding roll (6); Or constituted by Tension Control actr (2) and radius sensing (7).

Improving the finished roll quality critical is the tightness of finished roll, and the tightness of paper roll is with web tension and pass, and the tension stability then tightness of paper roll is good.But, the high quality paper roll of tight outer pine in the coil paper process, will being rolled into, so, the diameter increase of the coil paper paper web that web tension must be rolled into along with winding roll and reducing.Therefore, by the increase of the radius sensor on the winding roll, provide the signal input controller of a radius value and convert the certain force of strain value to along with paper web radius in the coil paper process.Simultaneously, measure the tension value input controller of paper web in the running from tension pick-up, compare, both difference becomes controlling valu, and the Tension Control actr controlled, produce a moment of torsion by the Tension Control actr and put on and move back web roll levelling tension value.This has just formed the closed loop tenslator.Equally, also can convert the certain force of strain value to the Tension Control actr is controlled, regulate web tension, because this is the tenslator of an open loop by the signal input controller that the radius sensor produces, so do not have closed loop tenslator control stabilization, and precision is poor slightly.

Can adopt the actr of various ways for the Tension Control actr, it would be desirable electromagnetic power brake, other can adopt dynamo generator, magnetic clutch, cylinder or oil cylinder are the friction belt type drg of power element, any in the fluid coupling etc.Tension pick-up can adopt LOAD CELLS or mechanical sensor.The radius sensor adopts potential device, impulse deviser, any in the inductor etc. synchronously.

The utility model has the advantages that the control web tension is stable, and tension force can permanent Tension Control, also can the attenuation type Tension Control, tension adjustment is convenient, finished roll quality height, the finished roll of tight outer pine in particularly can being rolled into, and also cost is low, as long as ten thousand yuan of 8-10 are with abroad comparing price with the rewinding machine of performance only reaches 1/40-1/50.

Below in conjunction with embodiment and accompanying drawing thereof, the utility model is described in further detail.

Fig. 1, the rewinding machine structural representation.

Fig. 2, the electromagnetic power brake structural representation.

Fig. 3, the tenslator schematic diagram.

Embodiment 1:

Move back among the figure web roll (1) at an end of axle with Tension Control actr (2), here adopt electromagnetic power brake, model is a CZ II-100, one end of (the dynamo-electric factory in state-run Hai'an produces) axle is connected, jockey pulley (4) is gone up by dress tension pick-up (3), here adopt LOAD CELLS, model is that state-run 701 factories of AKC-14(produce), end at winding roll (6) axle connects radius sensor (7) with chain, here adopt potential device (production of the 3rd research institute of Ministry of Astronautics Industry 33 research institutes), paper holder is by anvil roll (8), and anvil roll (9) supports, anvil roll (8), (9) Zhou a end is connected with motor by gear case.

During rewinding machine work, by driven by motor anvil roll (8), anvil roll (9) rotates, and drives winding roll (6) thus and rotates, and begins coil paper, and moves back web roll (1) by the paper web drive, and paper web is by air roll (5), jockey pulley (4) in the middle of this.Before rewinding machine work begins, according to paper type a setting tension value (19) and attenuation settings value (20) input controller (10), during rewinding machine work, by the radius sensor is the radius size of potential device according to the coil paper paper web, provide a signal value, input controller (18), draw corresponding setting tension value, tension pick-up (3) (LOAD CELLS) is gone up stressed size according to jockey pulley (4) simultaneously, provided the web tension value, input controller (18), both compare, and draw a difference, regulate electromagnetic power brake stator (13) with this difference and go up the electric current that coil (14) passes through, change magnetic-field intensity and pass through magnetic flux (10), magnetism-isolating loop (11), magnetic (15), driving rotor (16) driven rotor (12) is given (17) brake torques of input shaft, control moving back web roll (1), make web tension obtain aligning value into setting.The size of control tension force increases along with coil paper paper web radius and web tension and reducing.The high-quality paper roll of tight outer pine in being rolled into.If the attenuation settings value is zero, then become permanent Tension Control.

Embodiment 2:

In the above-described embodiments, the tenslator that only adopts tension control assembly (2) (electromagnetic power brake) to be constituted with radius sensor (7) (potential device).

Claims

1, a kind of rewinding machine, it is by moving back web roll (1), jockey pulley (4), air roll (5), winding roll (6), anvil roll (8), anvil roll (9) and web tension control system, power-transmission system is formed, and it is characterized in that the web tension control setup is by being connected in the Tension Control actr (2) that moves back on the web roll (1), tension pick-up (3) on the jockey pulley (4) and the radius sensor (7) on the winding roll (6); Or constituted by Tension Control actr (2) and radius sensor (7).

2, want 1 to ask described rewinding machine according to right, it is characterized in that Tension Control actr (2) adopts electromagnetic power brake, dynamo generator, magnetic clutch, cylinder or oil cylinder are the frictin braek of power element, any in the fluid coupling etc.

3, rewinding machine according to claim 1 is characterized in that tension pick-up (3) adopts LOAD CELLS or mechanical sensor.

4, rewinding machine according to claim 1 is characterized in that radius sensor (7) adopts potential device, impulse deviser, any in the inductor etc. synchronously.