Online lapping and gluing yarn disorder prevention device for producing wood pulp gridding paper

Abstract

The utility model relates to the technical field of wood pulp gridding paper production and manufacturing, in particular to an online lapping and gluing yarn disorder prevention device for producing wood pulp gridding paper, which comprises an upper layer warp group, a middle layer weft group and a lower layer warp group which are used for online lapping to form loose gridding cloth, the warp yarn separator rollers are respectively arranged on the moving paths of the upper-layer warp yarn group and the lower-layer warp yarn group; the warp separating rollers comprise an upper-layer warp separating roller and a lower-layer warp separating roller, the upper-layer warp separating roller is connected with warps in the upper-layer warp group in an abutting mode, the lower-layer warp separating roller is connected with warps in the lower-layer warp group in an abutting mode, and the upper-layer warp separating roller is arranged on a section of path before the upper-layer warp group enters the gluing device. The lower-layer warp yarn separator roller is arranged on a section of path before the lower-layer warp yarn group enters the gluing device; a plurality of annular yarn separating grooves are distributed in the outer circle of the warp yarn separating roller at intervals. According to the utility model, the online lapping quality of the wood pulp gridding paper loose gridding cloth is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wood pulp grid paper production and manufacturing, in particular to an online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper. Background Art

[0002] Wood pulp grid paper is a cleaning product commonly used in industry for absorbing liquids, removing stains and wiping surfaces. Typical wood pulp grid paper is usually a three-layer composite structure, the middle layer is a sparse grid material layer made of fiber material (also known as sparse grid cloth), the bottom layer and the surface layer are wood pulp raw material paper, which is composited through a special process.

[0003] Wood pulp grid paper has a wide range of applications and usage scenarios. It can be used in mechanical processing, automobile manufacturing, electronic production, aviation and other industrial fields, and is often used in automobile maintenance and servicing, hospitals, laboratories and other places and the sanitation and cleaning of instruments and meters.

[0004] Wood pulp grid paper can form a specific wrinkle foaming effect through bidirectional shrinkage, enhance flexibility, comfort, high absorption and stretchability, and have the characteristics of high strength, strong absorption, safety and environmental protection, non-toxicity, and no linting. It can replace the rags currently used to maintain the safety of the production environment, products, and personnel. In addition, based on the good water absorption, chemical resistance, tensile strength, anti-static, not easy to break, no linting, and reusability of wood pulp grid paper, it is an important cleaning material for industrial applications, greatly improving cleaning efficiency and quality.

[0005] In the prior art, the preparation of wood pulp grid paper is made by a two-step forming process, which separates the preparation of the scrim and the compounding of the scrim with raw paper: the first step is to use a special scrim production line to make the scrim (or directly purchase the scrim), and the second step is to use a special compound production line to compound the scrim with raw paper. However, since there are few manufacturers in China that can produce high-quality scrim, in high-end application fields (such as medical paper for surgical operations), it is only possible to import scrim finished cloth that meets strict quality requirements from abroad at a high cost, resulting in a high production cost for high-end wood pulp grid paper. For this reason, our company has now specially developed a wood pulp grid paper production equipment that does not require the use of scrim finished cloth. The equipment adopts the online laying and forming technology of the loose grid material layer. The loose grid material layer is formed as the loose grid cloth by the online laying of the yarn weft and warp. The equipment also adopts the specially designed pressing and compounding roller to press and compound the upper and lower layers of raw paper and the loose grid material layer coated with glue in the middle layer. After drying, the wood pulp grid paper is formed.

[0006] The above-mentioned wood pulp grid paper production process involves an online laying process of a loose grid cloth, which divides the yarn into three layers: upper, middle and lower. The upper yarn and the lower yarn are respectively an upper warp group and a lower warp group composed of a number of parallel and spaced warps, and the middle yarn is a middle weft group composed of a number of parallel and spaced wefts. After the three layers of yarn are laid separately, they enter the glue coating roller and the glue pressing roller of the gluing device together for gluing and overlapping. The loose grid cloth formed after gluing and overlapping is then compounded with the upper and lower layers of raw paper, and is made into wood pulp grid paper after drying.

[0007] When the open mesh cloth is laid online, the yarn needs to be tensioned. However, since the warp is long and thin, the tension applied to the warp cannot be too large, which may still cause a certain degree of disturbance in the warp. In addition, the yarn moving at high speed is prone to static electricity, which may easily cause the warp with a certain degree of disturbance to stick to each other during high-speed movement. In addition, although the length of the weft is relatively short, the air in front of the weft will have a certain airflow impact on the weft during high-speed movement, which may easily cause the weft to bend in an arc shape, which will also affect the quality of the laid net. Utility Model Content

[0008] In order to solve the above problems, the utility model proposes an online laying and gluing anti-yarn disorder device for producing wood pulp grid paper, aiming to improve the online laying quality of wood pulp grid paper scrim, thereby improving the manufacturing quality of wood pulp grid paper. The specific technical solution is as follows:

[0009] An online laying, gluing and yarn disorder prevention device for producing wood pulp grid paper, comprising an upper warp group, a middle weft group and a lower warp group for online laying to form a loose grid cloth, and warp dividing rollers respectively arranged on the moving paths of the upper warp group and the lower warp group; the warp dividing rollers include an upper warp dividing roller abutting against the warps in the upper warp group and a lower warp dividing roller abutting against the warps in the lower warp group, the upper warp dividing roller is arranged on a section of the path before the upper warp group enters the gluing device, and the lower warp dividing roller is arranged on a section of the path before the lower warp group enters the gluing device; a number of annular dividing grooves are spaced apart on the outer circumference of the warp dividing roller.

[0010] Among them, the upper warp thread group is composed of a number of upper warp threads arranged at intervals, the middle weft thread group is composed of a number of middle weft threads arranged at intervals, and the lower warp thread group is composed of a number of lower warp threads arranged at intervals.

[0011] The sparse mesh cloth of the utility model is laid with its warp and weft threads under a certain tensioning force.

[0012] During operation, the warps in the upper warp group and the lower warp group are correspondingly abutted against the annular wire separation grooves of the corresponding warp wire separation rollers, thereby preventing the warp wires from being disordered and achieving the effect of warp wire separation.

[0013] Preferably, the axial cross-section of the annular wire dividing groove is V-shaped.

[0014] Preferably, a layer of conductive coating is provided on the surface of the warp separation roller, and the conductive coating of the warp separation roller is externally connected to a low-voltage power supply.

[0015] In the utility model, the glue coating device includes a glue coating roller, a glue pressing roller pressed against the upper part of the glue coating roller, a glue coating pool arranged below the glue coating roller, and a transfer roller arranged between the glue coating roller and the glue coating pool; the surfaces of the glue coating roller and the glue pressing roller are both provided with a layer of conductive coating, and the conductive coatings of the glue coating roller and the glue pressing roller are externally connected to a low-voltage power supply.

[0016] Preferably, a pair of conductive rods are inserted into the glue coating pool, and a low-voltage power supply is externally connected between the pair of conductive rods.

[0017] Preferably, the transfer roller includes a first transfer roller with the lower side of the roller surface immersed in the glue coating pool, a second transfer roller arranged between the glue coating roller and the first transfer roller and respectively in contact with the glue coating roller and the first transfer roller, the surface of the second transfer roller is provided with a conductive coating, and the conductive coating of the second transfer roller is externally connected to a low-voltage power supply.

[0018] As a further improvement of the present invention, a synchronous airflow generator is provided on the path where the middle layer weft thread group enters the gluing device, and the synchronous airflow generator is used to form a moving airflow around the middle layer weft thread group, and the moving speed of the moving airflow is the same as or close to the moving speed of the middle layer weft thread group.

[0019] Preferably, the synchronous airflow generator includes an upper air supply box and a lower air supply box arranged in upper and lower positions, the upper air supply box is located above the middle-layer latitude line group, and the lower air supply box is located below the middle-layer latitude line group, and upper air supply holes that blow obliquely toward the middle-layer latitude line group in the moving direction of the middle-layer latitude line group are densely arranged on the bottom end surface of the upper air supply box, and lower air supply holes that blow obliquely toward the middle-layer latitude line group in the moving direction of the middle-layer latitude line group are densely arranged on the top end surface of the lower air supply box; the upper air supply box and the lower air supply box are respectively connected to the air supply system.

[0020] Preferably, the densely distributed air supply holes may be replaced by spaced air supply slits, wherein the air supply slits are parallel to or substantially consistent with the latitudes in the middle layer latitude group, and the direction of the airflow blown out by the air supply slits is still oblique.

[0021] Preferably, the synchronous airflow generator is arranged at a position close to the glue coating device.

[0022] As a further improvement of the utility model, an anemometer is arranged on the synchronous airflow generator near one end of the gluing device; the air supply system and the anemometer are respectively connected to the control system of the wood pulp grid paper production line.

[0023] Preferably, the anemometer includes a constant current wire that is electrically heated and a detection control circuit module connected to the constant current wire for controlling the current of the constant current wire to be constant and detecting the resistance of the constant current wire.

[0024] The working principle of the above anemometer is: the air flow rate will change the heat dissipation rate of the constant current wire, and then change the temperature of the constant current wire. The change in temperature causes the internal resistance of the constant current wire to change. The air flow rate signal is converted into the resistance signal of the constant current wire to realize the detection of the air flow rate.

[0025] During operation, the control system measures the air flow velocity around the middle-layer latitude line group through the anemometer to determine whether the air flow velocity is the same as or close to the moving speed of the middle-layer latitude line group; when there is a deviation, the air supply speed of the air supply system is adjusted to make the air flow velocity consistent with or close to the moving speed of the middle-layer latitude line group, thereby eliminating or greatly reducing the airflow impact on the middle-layer latitude line group when it moves at high speed, thereby eliminating or reducing the bending deformation of the latitude line.

[0026] Preferably, an environmental temperature sensor is also provided on the wood pulp grid paper production line, and the environmental temperature sensor is provided on the upper air supply box or the lower air supply box, and the environmental temperature sensor is connected to the control system of the wood pulp grid paper production line. The environmental temperature value around the middle layer weft group is measured by the environmental temperature sensor, and environmental temperature compensation can be performed when the anemometer is measuring, so that the air velocity data measured by the anemometer can be more accurate.

[0027] The beneficial effects of the utility model are:

[0028] First, the utility model is an online laying and gluing device for preventing yarn disorder for producing wood pulp grid paper. The yarns in the upper warp group and the lower warp group in the loose grid cloth are guided by the upper warp wire separation roller and the lower warp wire separation roller respectively before entering the gluing device to separate the adjacent warp wires, thereby eliminating or greatly reducing the warp wire adhesion caused by static electricity, thereby improving the online laying quality of the wood pulp grid paper loose grid cloth, and then improving the manufacturing quality of the wood pulp grid paper.

[0029] Second, the utility model discloses an online web laying and gluing device for preventing yarn disorder in the production of wood pulp grid paper. The surfaces of the gluing roller, the glue pressing roller, the second transfer roller and the warp wire separation roller are all provided with a conductive coating, and a conductive rod is provided in the gluing pool. The conductive coating and the conductive rod are respectively connected to electricity, thereby eliminating or greatly reducing the static electricity when the yarn moves at high speed, thereby effectively avoiding the mutual adhesion of the yarn, thereby further improving the online web laying quality of the wood pulp grid paper loose grid cloth.

[0030] Third, the utility model is an online laying and gluing device for preventing yarn disorder for producing wood pulp grid paper. A synchronous airflow generator is arranged around the middle layer weft group. The combined force of the oblique airflows blown out by the upper air supply box and the lower air supply box can form a moving airflow around the middle layer weft group that is consistent with (same direction, equal size) or close to (consistent direction, close size) the moving speed of the middle layer weft group, thereby effectively avoiding the impact of the air flow on the wefts in the middle layer weft group during high-speed movement, thereby greatly reducing the bending deformation of the wefts, thereby further improving the online laying quality of the wood pulp grid paper loose mesh cloth.

[0031] Fourthly, the utility model is an online laying and gluing device for preventing yarn disorder for producing wood pulp grid paper. The warp wire separation roller, the anti-static power connection setting and the synchronous airflow generator cooperate with each other, so that the grid formed by the laying of the warp and weft threads is a rectangular grid with a relatively regular shape and uniform size, which overcomes the disadvantages of the traditional use of sparse grid finished cloth to make wood pulp grid paper, which is easy to produce grid deformation and inconsistent shape and size of each grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of an online web laying and gluing device for preventing yarn disorder for producing wood pulp grid paper according to the utility model;

[0033] Figure 2 yes Figure 1 With a magnified view;

[0034] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle warp wire separation roller.

[0035] In the figure: 1, glue coating roller, 2, glue pressing roller, 3, glue coating pool, 4, first transfer roller, 5, second transfer roller, 10, control system, 16, online paving scrim;

[0036] In the figure: 81, upper warp group, 82, middle weft group, 83, lower warp group, 84, upper warp wire dividing roller, 85, lower warp wire dividing roller, 86, annular wire dividing groove, 87, V-shape, 88, conductive rod, 89, synchronous air flow generator, 90, upper air supply box, 91, lower air supply box, 92, upper air supply hole, 93, lower air supply hole, 94, air supply system, 95, anemometer, 96, ambient temperature sensor. DETAILED DESCRIPTION

[0037] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0038] like Figures 1 to 3 The utility model is shown as an embodiment of an online web-laying and gluing anti-yarn disorder device for producing wood pulp grid paper, comprising an upper warp group 81, a middle weft group 82 and a lower warp group 83 for online web-laying to form a sparse grid cloth 16, and warp wire separation rollers 84 and 85 respectively arranged on the moving paths of the upper warp group 81 and the lower warp group 83; the warp wire separation rollers 84 and 85 include a warp wire separation roller 84 and 85 that are close to the warp wires in the upper warp group 81. The upper warp dividing roller 84 is connected to the upper warp group 81, and the lower warp dividing roller 85 is adjacent to the warp in the lower warp group 83, the upper warp dividing roller 84 is arranged on a path before the upper warp group 81 enters the glue coating device, and the lower warp dividing roller 85 is arranged on a path before the lower warp group 83 enters the glue coating device; a number of annular dividing grooves 86 are spaced apart on the outer circles of the warp dividing rollers 84 and 85.

[0039] The upper warp thread group 81 is composed of a number of upper warp threads arranged at intervals, the middle weft thread group 82 is composed of a number of middle weft threads arranged at intervals, and the lower warp thread group 83 is composed of a number of lower warp threads arranged at intervals.

[0040] In the present embodiment, the warp and weft threads of the scrim 16 are laid under a certain tension.

[0041] During operation, the warps in the upper warp group 81 and the lower warp group 83 are correspondingly abutted against the annular wire dividing grooves 86 of the corresponding warp wire dividing rollers 84 and 85, thereby preventing the warp wires from being disordered and achieving the effect of warp wire dividing.

[0042] Preferably, the axial cross-section shape of the annular wire dividing groove 86 is a V-shape 87 .

[0043] Preferably, a layer of conductive coating is provided on the surface of the warp wire separation rollers 84, 85, and the conductive coatings of the warp wire separation rollers 84, 85 are externally connected to a low-voltage power supply.

[0044] In this embodiment, the glue coating device includes a glue coating roller 1, a glue pressing roller 2 pressed against the upper part of the glue coating roller 1, a glue coating pool 3 arranged below the glue coating roller 1, and transfer rollers 4 and 5 arranged between the glue coating roller 1 and the glue coating pool 3; the surfaces of the glue coating roller 1 and the glue pressing roller 2 are both provided with a layer of conductive coating, and the conductive coatings of the glue coating roller 1 and the glue pressing roller 2 are externally connected to a low-voltage power supply.

[0045] Preferably, a pair of conductive rods 88 are inserted into the glue coating pool 3 , and a low-voltage power supply is externally connected between the pair of conductive rods 88 .

[0046] Preferably, the transfer rollers 4, 5 include a first transfer roller 4 with the lower side of the roller surface immersed in the glue coating pool 3, and a second transfer roller 5 arranged between the glue coating roller 1 and the first transfer roller 4 and respectively in contact with the glue coating roller 1 and the first transfer roller 4, and a layer of conductive coating is provided on the surface of the second transfer roller 5, and the conductive coating of the second transfer roller 5 is externally connected to a low-voltage power supply.

[0047] As a further improvement of this embodiment, a synchronous airflow generator 89 is provided on the path where the middle layer weft thread group 82 enters the gluing device, and the synchronous airflow generator 89 is used to form a moving airflow around the middle layer weft thread group 82, and the moving speed of the moving airflow is the same as or close to the moving speed of the middle layer weft thread group 82.

[0048] Preferably, the synchronous airflow generator 89 includes an upper air supply box 90 and a lower air supply box 91 arranged in an upper and lower position, the upper air supply box 90 is located above the middle-layer latitude group 82, and the lower air supply box 91 is located below the middle-layer latitude group 82, and upper air supply holes 92 are densely distributed on the bottom end surface of the upper air supply box 90, which blow obliquely toward the middle-layer latitude group 82 in the moving direction of the middle-layer latitude group 82, and lower air supply holes 93 are densely distributed on the top end surface of the lower air supply box 91, which blow obliquely toward the middle-layer latitude group 82 in the moving direction of the middle-layer latitude group 82; the upper air supply box 90 and the lower air supply box 91 are respectively connected to the air supply system 94.

[0049] Preferably, the densely distributed air supply holes 92, 93 may be replaced by spaced air supply slits, wherein the air supply slits are parallel to or substantially consistent with the latitudes in the middle layer latitude group 82, and the direction of the airflow blown out by the air supply slits is still oblique.

[0050] Preferably, the synchronous airflow generator 89 is arranged at a position close to the glue coating device.

[0051] As a further improvement of this embodiment, an anemometer 95 is provided on the synchronous airflow generator 89 near one end of the gluing device; the air supply system 94 and the anemometer 95 are respectively connected to the control system 10 of the wood pulp grid paper production line.

[0052] Preferably, the anemometer 95 includes a constant current wire for heating and a detection control circuit module connected to the constant current wire for controlling the current of the constant current wire to be constant and detecting the resistance of the constant current wire.

[0053] The working principle of the above-mentioned anemometer 95 is: the air flow rate will change the heat dissipation rate of the constant current wire, and then change the temperature of the constant current wire. The change in temperature causes the internal resistance of the constant current wire to change. The air flow rate signal is converted into the resistance signal of the constant current wire to realize the detection of the air flow rate.

[0054] During operation, the control system 10 measures the air flow velocity around the middle-layer latitude line group 82 through the anemometer 95, and determines whether the air flow velocity is the same as or close to the moving speed of the middle-layer latitude line group 82; when there is a deviation, the air supply speed of the air supply system 94 is adjusted to make the air flow velocity consistent with or close to the moving speed of the middle-layer latitude line group 82, thereby eliminating or greatly reducing the airflow impact on the middle-layer latitude line group 82 when it moves at high speed, thereby eliminating or reducing the bending deformation of the latitude line.

[0055] Preferably, an ambient temperature sensor 96 is also provided on the wood pulp grid paper production line, and the ambient temperature sensor 96 is provided on the upper air supply box 90 or the lower air supply box 91, and the ambient temperature sensor 96 is connected to the control system 10 of the wood pulp grid paper production line. The ambient temperature value around the middle layer weft group 82 is measured by the ambient temperature sensor 96, and ambient temperature compensation can be performed when the anemometer 95 measures, so that the air flow rate data measured by the anemometer 95 can be more accurate.

[0056] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An online web laying and gluing device for preventing yarn disorder for producing wood pulp grid paper, characterized in that: It comprises an upper warp group, a middle weft group and a lower warp group for online laying to form a sparse mesh cloth, and warp dividing rollers respectively arranged on the moving paths of the upper warp group and the lower warp group; the warp dividing rollers comprise an upper warp dividing roller abutting against the warps in the upper warp group and a lower warp dividing roller abutting against the warps in the lower warp group, the upper warp dividing rollers are arranged on a section of the path before the upper warp group enters the glue coating device, and the lower warp dividing rollers are arranged on a section of the path before the lower warp group enters the glue coating device; a number of annular dividing grooves are spaced apart on the outer circumference of the warp dividing rollers.

2. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 1 is characterized in that: The axial cross-section shape of the annular wire dividing groove is V-shaped.

3. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 1, characterized in that: A layer of conductive coating is arranged on the surface of the warp wire separation roller, and the conductive coating of the warp wire separation roller is externally connected to a low-voltage power supply.

4. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 1, characterized in that: The glue coating device includes a glue coating roller, a glue pressing roller pressed against the upper part of the glue coating roller, a glue coating pool arranged below the glue coating roller, and a transfer roller arranged between the glue coating roller and the glue coating pool; the surfaces of the glue coating roller and the glue pressing roller are both provided with a layer of conductive coating, and the conductive coatings of the glue coating roller and the glue pressing roller are externally connected to a low-voltage power supply.

5. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 4, characterized in that: A pair of conductive rods are inserted into the glue coating pool, and a low-voltage power supply is externally connected between the pair of conductive rods.

6. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 4, characterized in that: The transfer roller includes a first transfer roller with the lower side of the roller surface immersed in the glue coating pool, a second transfer roller arranged between the glue coating roller and the first transfer roller and respectively in contact with the glue coating roller and the first transfer roller, and a conductive coating is provided on the surface of the second transfer roller, and the conductive coating of the second transfer roller is externally connected to a low-voltage power supply.

7. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 1, characterized in that: A synchronous airflow generator is provided on the path where the middle layer weft thread group enters the glue coating device and is used to form a moving airflow around the middle layer weft thread group, and the moving speed of the moving airflow is the same as or close to the moving speed of the middle layer weft thread group.

8. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 7, characterized in that: The synchronous airflow generator includes an upper air supply box and a lower air supply box arranged in an upper and lower position, the upper air supply box is located above the middle-layer latitude line group, and the lower air supply box is located below the middle-layer latitude line group. Upper air supply holes that blow obliquely toward the middle-layer latitude line group in the moving direction of the middle-layer latitude line group are densely arranged on the bottom end surface of the upper air supply box, and lower air supply holes that blow obliquely toward the middle-layer latitude line group in the moving direction of the middle-layer latitude line group are densely arranged on the top end surface of the lower air supply box; the upper air supply box and the lower air supply box are respectively connected to the air supply system.

9. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 8, characterized in that: The synchronous airflow generator is arranged at a position close to the glue coating device.

10. The online web laying and gluing anti-yarn disorder device for producing wood pulp grid paper according to claim 9, characterized in that: An anemometer is arranged on the synchronous airflow generator at a position close to one end of the gluing device; the air supply system and the anemometer are respectively connected to the control system of the wood pulp grid paper production line.

Images