阅读说明：本技术 一种水针换卷吹托装置及纸卷生产线 (Hydro-acupuncture roll change blows and holds in palm device and scroll production line ) 是由 占正奉 陈学萍 鲁仕敏 万涛 黄跃 于 2019-09-02 设计创作，主要内容包括：本发明公开了一种水针换卷吹托装置及纸卷生产线,属于造纸技术领域。该装置包括：至少一个用于向纸尾运动方向正对喷气的喷气单元,其具有进气管、分配管及喷气支管,进气管一端连接分配管,另一端连接气源,喷气支管与分配管连接连通,喷气支管的出口倾斜朝向纸尾的运动轨迹方向；至少一个用于控制所述喷气单元工作的控制单元,其具有一PLC控制器。通过设置喷气支管向甩起的纸尾提供一个正面的吹力,在纸尾运动轨迹方向设置一个作用力,来保证纸尾的运动轨迹在可控的范围内,使得高速旋转的纸尾不会落入新的卷纸辊上,避免造成正在卷曲的纸张断裂。(The invention discloses a hydro-acupuncture roll changing and blowing support device and a paper roll production line, and belongs to the technical field of papermaking. The device includes: the air injection unit is used for injecting air to the moving direction of the paper tail and is provided with an air inlet pipe, a distribution pipe and an air injection branch pipe, one end of the air inlet pipe is connected with the distribution pipe, the other end of the air inlet pipe is connected with an air source, the air injection branch pipe is connected and communicated with the distribution pipe, and an outlet of the air injection branch pipe inclines towards the moving track direction of the paper tail; and at least one control unit for controlling the operation of the air injection unit, wherein the control unit is provided with a PLC controller. The air injection branch pipe is arranged to provide positive blowing force for the thrown paper tail, acting force is arranged in the direction of the motion track of the paper tail, the motion track of the paper tail is guaranteed to be in a controllable range, the paper tail rotating at high speed cannot fall into a new paper winding roller, and paper breakage during curling is avoided.)

1. A hydro-acupuncture roll-changing and blowing-supporting device (400), characterized in that the device comprises: the paper tail jet device comprises at least one jet unit (410) used for jetting air to the moving direction of a paper tail, and the jet unit is provided with an air inlet pipe (411), a distribution pipe (412) and a jet branch pipe (413), wherein one end of the air inlet pipe (411) is connected with the distribution pipe (412), the other end of the air inlet pipe is connected with an air source, the jet branch pipe (413) is connected and communicated with the distribution pipe (412), and an outlet of the jet branch pipe (413) inclines towards the moving track direction of;

at least one control unit (420) for controlling the operation of the gas injection unit (410) and having a PLC controller.

2. The hydro-acupuncture roll-changing blowing-supporting device (400) as claimed in claim 1, wherein an open-close valve (414) is arranged on the air inlet pipe (411), and the PLC is electrically connected with the open-close valve (414).

3. The apparatus (400) for changing hydro-acupuncture rolls and blowing off and supporting as claimed in claim 1, wherein the valve (414) is a solenoid valve or a flow valve.

4. The hydro-acupuncture roll-changing blowing-supporting device (400) as claimed in any one of claims 1 to 3, further comprising a moving unit (430) for driving the air injection unit (410) to move, wherein the moving unit is provided with a guide rail (431), a movable electric trolley (432) and a telescopic cylinder (433) fixed on the movable electric trolley (432), the lower end of a telescopic rod of the telescopic cylinder (433) is fixedly connected with the distribution pipe (412), and the movable electric trolley (432) and the telescopic cylinder (433) are electrically connected with the PLC;

and the tail monitoring unit (440) is used for monitoring the tail movement height in real time and is provided with an infrared sensor, and the infrared sensor comprises a receiver (441) and a transmitter (442) which are electrically connected with the PLC.

5. The hydro-acupuncture roll-changing blowing-supporting device (400) as claimed in claim 4, wherein the air inlet pipe (411) is a corrugated pipe made of polyethylene or aluminum alloy.

6. The hydro-acupuncture roll-changing blowing-supporting device (400) as claimed in claim 5, wherein the number of the branch gas injection pipes (413) is at least two, two adjacent branch gas injection pipes (413) are arranged in a staggered manner, and the central included angle a between the two branch gas injection pipes is 15-30 °.

7. The hydro-acupuncture roll-changing and blowing-holding device (400) according to claim 6, wherein the gas source comprises compressed air, nitrogen, helium or argon.

8. The apparatus (400) for changing a roll and blowing off a roll of a water needle as claimed in claim 7, wherein the number of the air injection branch pipes (413) is four, and the air injection branch pipes are equidistantly fixed on the distribution pipe (412).

9. The hydro-acupuncture roll-changing and blowing-holding device (400) as claimed in claim 8, wherein the number of the infrared sensors is at least three or more.

10. A paper roll production line comprises a roll changing rack (100), wherein two roll winding rollers (200) and a guide roller (300) are arranged on the roll changing rack (100), and the paper roll production line is characterized by further comprising a squirt roll changing and blowing and supporting device (400) according to any one of claims 1 to 9, and the squirt roll changing and blowing and supporting device (400) is arranged on the roll changing rack (100).

Technical Field

The invention belongs to the technical field of papermaking, and particularly relates to a hydro-acupuncture roll changing and blowing support device and a paper roll production line.

Background

With the rapid development of international large paper machines, the increase of the speed of the paper machine becomes the goal of consistent pursuit of international famous paper making equipment manufacturers such as Metso, Voith and the like and production factories. However, the lifting of the speed of the paper machine is limited by various conditions, especially under the condition of high speed of the paper machine, the finished paper roll can generate a large centrifugal force during roll changing, when smooth paper is produced and the mandrel is braked and stopped, the outer layer of the finished paper roll still runs under the action of inertial centrifugal force, so that the finished paper roll is loosened, the normal production of the paper machine and the lifting of the speed of the paper machine are seriously influenced, and a large amount of loss is generated.

The hydro-acupuncture roll changing device is arranged between the paper rolling cylinder and the arc-shaped roller, and the paper is controlled and cut by high-pressure water, so that the paper is smoothly wound on a new paper rolling roller, the roll changing process is instantly completed, and the hydro-acupuncture roll changing device can be applied to the production of culture paper/coated paper/packaging paper/paperboard/special paper/household paper. Through the water needle roll changing device, the wrinkles and fragments of paper at the bottom of a roller during air blowing roll changing can be eliminated, the paper loss at the bottom of the roller caused by the indentation of a paper tape during paper tape roll changing is eliminated, the paper loss at the bottom of a paper rolling roller is very little, the full-automatic roll changing process eliminates artificial unsafe factors, and the intrinsic safety of equipment is improved.

However, in the automatic paper-winding hydro-acupuncture roll-changing process for papermaking, the roll-up roll cannot avoid the phenomenon of tail flying off in the roll-changing process, and the flying off tail is rolled into the paper layer of a new roll-up roll, so that the roll-up roll is easy to break at the winding or rewinding position.

In order to solve the above problems, for example, the patent application document with chinese patent application No. 200810060300.3 and published as 2008/9/3 discloses a paper winding machine, which comprises a workbench, a winding roller, a winding changing iron core and a loading brake device, and a glue spraying system for adhering the end of the paper roll to the surface of the paper roll during the winding changing; because the glue spraying system is arranged around the reel changing iron core of the reel machine, glue is sprayed on the paper surface six seconds before reel changing, so that the end part of the paper is bonded on the paper roll, the loosening phenomenon of the paper roll under the action of inertial centrifugal force is thoroughly solved, and the swinging phenomenon of the paper tail after reel changing is also solved. For another example, a chinese patent application No. 201320651848.1, published as 2014, 4/9 discloses a winding device, which includes: the winding unit is used for winding the paper sheets to be wound entering the winding unit to form a paper roll with a preset diameter; the paper cutting unit is used for cutting the to-be-collected paper entering the winding unit to complete a winding process after the winding unit winds the paper to form a paper roll; and the tail sealing unit comprises a nozzle communicated with a water source, the nozzle is used for spraying water to the tail part of the paper roll cut off by the paper cutting unit in the paper cutting process of the paper cutting unit so as to wet the paper tail of the paper roll, and the nozzle is used for spraying water to the tail part of the wound paper roll when the paper cutting unit performs paper cutting operation so as to wet the paper tail of the paper roll, so that the paper tail of the paper roll can be well attached to the outermost layer of the paper roll under the wet condition and the paper throwing phenomenon cannot occur.

The scheme is a good exploration for solving the paper throwing problem in the paper rolling process, but still has a further promotion space, and the research on the paper throwing problem in the industry is never stopped.

Disclosure of Invention

1. Problems to be solved

The invention provides a hydro-acupuncture roll change blowing and supporting device and a paper roll production line, aiming at the problems that paper tail paper throwing phenomenon can be caused under the action of centrifugal force and paper roll breaking is caused in the existing roll paper changing process.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention relates to a hydro-acupuncture coil-changing blowing-supporting device, which comprises: the air injection unit is used for injecting air to the moving direction of the paper tail and is provided with an air inlet pipe, a distribution pipe and an air injection branch pipe, one end of the air inlet pipe is connected with the distribution pipe, the other end of the air inlet pipe is connected with an air source, the air injection branch pipe is connected and communicated with the distribution pipe, and an outlet of the air injection branch pipe inclines towards the moving track direction of the paper tail;

and at least one control unit for controlling the operation of the air injection unit, wherein the control unit is provided with a PLC controller.

In a possible embodiment of the present invention, an open/close valve is disposed on the air inlet pipe, and the PLC controller is electrically connected to the open/close valve.

In a possible embodiment of the present invention, the open/close valve is a solenoid valve or a flow valve.

In a possible implementation manner of the invention, the device further comprises a moving unit for driving the air injection unit to move, the moving unit is provided with a guide rail, a movable electric trolley and a telescopic cylinder fixed on the movable electric trolley, the lower end of a telescopic rod of the telescopic cylinder is fixedly connected with the distribution pipe, and the movable electric trolley and the telescopic cylinder are electrically connected with the PLC controller;

a paper tail monitoring unit for real-time supervision paper tail motion height, it has infrared inductor, infrared inductor includes receiver and transmitter, and all with the PLC controller electricity is connected.

In one possible embodiment of the present invention, the air inlet pipe is a corrugated pipe, and the material of the air inlet pipe is polyethylene or aluminum alloy.

In a possible embodiment of the present invention, the number of the branch nozzles is at least two, two adjacent branch nozzles are staggered, and the central angle a between the two branch nozzles is 15-30 °.

In one possible embodiment of the present invention, the gas source includes compressed air, nitrogen, helium, or argon, or other alternative gas.

In a possible embodiment of the present invention, the number of the branch gas injection pipes is four, and the branch gas injection pipes are equidistantly fixed on the distribution pipe.

In a possible embodiment of the present invention, the number of the infrared sensors is at least three.

The invention also provides a paper roll production line which comprises a roll changing rack and the squirt roll changing and blowing support device, wherein the roll changing rack is provided with two roll changing rolls and a guide roll, and the squirt roll changing and blowing support device is arranged on the roll changing rack.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the hydro-acupuncture roll-changing blowing-supporting device, the air injection branch pipe is arranged to provide a positive blowing force for the thrown paper tail, and an acting force is arranged in the direction of the motion track of the paper tail to ensure that the motion track of the paper tail is in a controllable range, so that the paper tail rotating at a high speed cannot fall onto a new paper winding roller, and the breakage of the paper which is being curled is avoided;

(2) according to the hydro-acupuncture roll-changing blowing support device, the air inlet pipe is provided with the opening and closing valve, the opening and closing valve is an electromagnetic valve or a flow valve, when the PLC of the paper machine sends an alarm to change the roll, and simultaneously sends a signal to open the electromagnetic valve or the flow valve, so that the air injection branch pipe injects air forwards before roll change is started, and the possibility of paper breakage can be effectively reduced;

(3) according to the hydro-acupuncture reel-changing blowing-supporting device, the air injection branch pipes are equidistantly fixed on the distribution pipe, the paper tail can receive acting forces of a plurality of points in the transverse direction of the paper winding roller, the blowing-supporting effect is obvious, the phenomenon that the air injection floats on the paper tail is effectively eliminated, and the regular and ordered rotation of the paper tail is guaranteed;

(4) according to the hydro-acupuncture roll change blowing and supporting device, the infrared sensor is arranged, the highest point possibly occurring on the paper tail is monitored in real time, the use performance of the device is improved, and the phenomena of paper tail breaking and paper throwing during roll change are reduced;

(5) the hydro-acupuncture coil-changing blowing-supporting device is simple in structure and easy to manufacture.

Drawings

FIG. 1 is a schematic structural diagram of a hydro-acupuncture roll-changing blowing-supporting device of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is another schematic structural diagram of the hydro-acupuncture roll-changing blowing-supporting device of the present invention;

FIG. 4 is a top view of FIG. 3;

fig. 5 is another structural schematic diagram of the hydro-acupuncture roll-changing blowing-supporting device of the invention.

Description of reference numerals:

100. a reel changing frame;

200. a paper winding roller;

300. a guide roller;

400. the hydro-acupuncture coil-changing blowing-supporting device; 410. a gas injection unit; 411. an air inlet pipe; 412. a distribution pipe; 413. a gas injection branch pipe; 414. opening and closing the valve; 420. a control unit; 430. a mobile unit; 431. a guide rail; 432. moving the electric trolley; 433. a telescopic cylinder; 440. a paper tail monitoring unit; 441. a receiver; 442. a transmitter.

500. Paper.

Detailed Description

The invention is further described with reference to specific examples.