CN-121986955-A - Paper guiding device and paper guiding method for reconstituted tobacco substrate

CN121986955ACN 121986955 ACN121986955 ACN 121986955ACN-121986955-A

Abstract

The paper guiding device comprises a front roller mechanism, a coating double-roller mechanism, a cooling short net, a stripping air pipe mechanism, a guiding air pipe mechanism and a whole air pipe mechanism, wherein the reconstituted tobacco substrate enters the paper guiding device from the front roller mechanism and is fed into the coating double-roller mechanism through the stripping air pipe mechanism, the guiding air pipe mechanism and the whole air pipe mechanism synchronously act on the coating double-roller mechanism so that the reconstituted tobacco substrate on the coating double-roller mechanism is separated and is completely fed into the cooling short net, and the paper guiding method is realized through the paper guiding device, thereby solving the inherent safety risk and low efficiency problems of manual paper guiding.

Inventors

LI PENGFEI
WANG SHUIMING
CHEN QIANJIN
PAN YAXIONG
XIA ZHIGANG
PENG HAO
WANG JIAN
ZHANG YI
WANG YU

Assignees

湖北中烟工业有限责任公司
湖北新业烟草薄片开发有限公司

Dates

Publication Date: 20260508
Application Date: 20260319

Claims (10)

1. A paper guide for reconstituted tobacco substrates, comprising: The front roller mechanism is arranged at the inlet end of the paper guiding device; The coating double-roller mechanism is arranged at the middle section of the paper guiding device; The cooling short net is arranged at the outlet end of the paper guiding device; Stripping air pipe mechanism; A guiding air pipe mechanism; A whole air pipe mechanism; the stripping air pipe mechanism is arranged between the front roller mechanism and the coating double-roller mechanism around the running route of the reconstituted tobacco substrate; The reconstituted tobacco substrate enters the paper guiding device from the front roller mechanism, is sent into the coating double roller mechanism through the stripping air pipe mechanism, and synchronously acts on the coating double roller mechanism through the stripping air pipe mechanism, the guiding air pipe mechanism and the whole air pipe mechanism, so that the reconstituted tobacco substrate on the coating double roller mechanism is separated from and is completely sent into the cooling short net.
2. The paper guide device according to claim 1, wherein the coating double-roller mechanism comprises a first coating roller and a second coating roller, the first coating roller and the second coating roller are adjacently arranged and rotate in opposite directions, and a channel for accommodating the reconstituted tobacco substrate to pass through is arranged between the first coating roller and the second coating roller; The front roller mechanism is arranged above the coating double-roller mechanism; the air guiding pipe mechanism and the whole air pipe mechanism are arranged below the coating double-roller mechanism.
3. The paper guide apparatus according to claim 2, wherein the peeling duct mechanism includes a peeling duct, a duct connecting the peeling duct and the main duct, a control valve provided on the duct for controlling air intake of the peeling duct; The control valve is a ball valve and/or an electromagnetic valve, and the number of the stripping air pipes is at least 3.
4. The paper guide apparatus of claim 3, wherein the stripping air duct mechanism comprises a first stripping air duct assembly, a second stripping air duct assembly, a third stripping air duct assembly, and a fourth stripping air duct assembly; The first stripping air pipe assembly is arranged on the front roller mechanism and is used for primarily stripping the reconstituted tobacco substrate and the paper-guiding rope; The second stripping air pipe assembly is arranged between the front roller mechanism and the coating double-roller mechanism and is used for completely stripping the reconstituted tobacco substrate and the paper-guiding rope; the third stripping air pipe assembly and the fourth stripping air pipe assembly act on the coating double-roller mechanism to separate the reconstituted tobacco substrate from the coating double-roller mechanism.
5. The paper guiding device according to claim 4, wherein the air outlet pressure of the first stripping air pipe assembly is 5-10 bar; the support frame of the second stripping air pipe assembly is 7-shaped; the second stripping air pipe assembly can be used for three-dimensional position adjustment.
6. A paper guide apparatus according to claim 3, wherein the air guide duct mechanism comprises a first air guide duct and a second air guide duct; The first guide air pipe is arranged at the right lower part of the first coating roller, and is used for preventing the reconstituted tobacco substrate from sticking to the first coating roller and blowing the reconstituted tobacco substrate to advance along the horizontal direction; The first guide air pipe and the horizontal line form a first included angle, and the range of the first included angle is 80-85 ℃.
7. The paper guide apparatus of claim 6, wherein the second guide duct is disposed at a lower left side of the first coating roller, the second guide duct blowing in a horizontal direction for guiding the reconstituted tobacco substrate into the cooling stub.
8. The paper feeding device according to claim 3, wherein the whole air pipe mechanism is arranged below the first coating roller, and when the reconstituted tobacco substrate enters the cooling short net, the whole air pipe blows air in the horizontal direction so that the whole reconstituted tobacco substrate enters the cooling short net.
9. A paper guide according to claim 3, wherein the second applicator roll is further provided with a doctor blade assembly for cleaning the roll surface of the second applicator roll.
10. A paper guiding method, characterized in that the paper guiding method is realized by the paper guiding device according to any one of claims 1-9, the paper guiding method comprises the following steps: S1, connecting the reconstituted tobacco substrate with a paper-guiding rope, and enabling the reconstituted tobacco substrate to enter the paper-guiding device through the front roller mechanism and approach the coating double-roller mechanism; S2, separating the reconstituted tobacco substrate from the paper-guiding rope through the stripping air pipe mechanism and then passing through the coating double-roller mechanism; And S3, separating the reconstituted tobacco substrate from the coating double-roller mechanism and entering the cooling short net under the synchronous action of the stripping air pipe mechanism, the guiding air pipe mechanism and the whole air pipe mechanism.

Description

Paper guiding device and paper guiding method for reconstituted tobacco substrate Technical Field The patent relates to the field of papermaking-method reconstituted tobacco equipment automation, in particular to a paper guiding device and a paper guiding method for reconstituted tobacco substrates. Background The reconstituted tobacco, also called tobacco sheet, is an important material used for improving the utilization rate of raw materials and reducing harmful components in the tobacco industry, and the production process of the reconstituted tobacco mainly uses the papermaking technology to comprise two sections of pulping and papermaking. In the papermaking section, the continuous substrate formed after the slurry is dehydrated and formed needs to be subjected to multiple procedures such as forming, squeezing, drying, coating, final drying and the like in sequence. Wherein the coating procedure is a key link, and aims to uniformly apply the coating liquid containing components such as tobacco extract, humectant and the like on the surface of the substrate so as to improve the sensory and physical properties of the substrate. The coated substrate becomes wet, soft and extremely low in strength due to the large amount of liquid contained therein, and must be immediately cooled and preliminarily set to prevent breakage or blocking thereof by its own weight, which is usually accomplished by a cooling short wire which runs in a loop. The cooling short net not only plays a role in conveying, but also can effectively stabilize the shape of the substrate by an internal cooling mechanism, and is prepared for the subsequent main drying process. However, in modern continuous production lines, the coating apparatus and the cooling short web are two separate apparatuses, with a certain physical separation between them, and are arranged with a plurality of guiding rolls. This creates a critical process challenge in how to safely, reliably and efficiently guide and deposit reconstituted tobacco substrates in a wet, soft state just exiting from between the coating rolls, particularly narrow reconstituted tobacco substrates as a "lead" at the start of production, from the coating area onto a high-speed running cooling mat. The coated substrate is easy to adhere to the surface of the roller rotating at high speed, and can fall off or break due to gravity sagging or running track deviation, so that the paper guiding process becomes a bottleneck for improving production continuity and automation level. At present, the paper guiding mode commonly adopted in the industry still highly depends on manual operation. Specifically, when the paper is required to be drawn, an operator needs to hold a high-pressure air pipe, and in the running state of the equipment, the operator is close to dangerous areas such as a coating roller, a guide roller and the like which rotate at high speed, and the reconstituted tobacco substrate is tried to be stripped from a paper drawing rope and blown to the direction of a cooling short net through the impact force of air flow, and sometimes even needs to assist in picking by a long rod. The method has extremely high experience and skill requirements on operators, and the operators are placed under the double risks of mechanical injury and high-pressure gas injury, so that potential safety hazards are prominent. Meanwhile, the success rate of manual paper feeding is affected by a plurality of factors, the stability is poor, and the shutdown and restarting frequently caused by paper feeding failure seriously affect the running efficiency of a production line and the exertion of the whole productivity. In addition, the traditional mode can not meet the requirements of modern automatic and intelligent production, and becomes an obvious short board for industrial upgrading. Therefore, development of a paper guiding device and a paper guiding method for reconstituted tobacco substrates, which can completely replace manual work, realize automation, and be safe and efficient, is needed. Disclosure of Invention This patent aims at solving the wet substrate after the coating in the reconstituted tobacco production and relies on the technical problem that the potential safety hazard that manual operation led to is big, inefficiency and success rate unstable from the transfer process of coating roller to cooling short net, and this patent provides following technical scheme: The first aspect provides a paper guiding device for reconstituted tobacco substrates, which comprises a front roller mechanism, a coating double-roller mechanism, a cooling short net, a stripping air pipe mechanism, a guiding air pipe mechanism, a whole air pipe mechanism, a stripping air pipe mechanism, a peeling air pipe mechanism, a coating double-roller mechanism and a cooling short net, wherein the front roller mechanism is arranged at the inlet end of the paper guiding device, the coating double-roller mechanism is arranged at the