Production equipment for reinforced wrinkle wiping paper

Abstract

The present application proposes a production device for reinforced wrinkled wiping paper, comprising: a raw material unit, a laminating unit, and a winding unit; the raw material unit comprises: a first paper roller, a grid-shaped linear reinforcement roller, and a third paper roller; the first paper roller, the grid-shaped linear reinforcement roller, and the third paper roller are torque-controllable rollers; the first paper roller, the grid-shaped linear reinforcement roller, and the third paper roller are used to wind the raw material; an upper pressing roller and a lower pressing roller are used to heat-press the raw material passing through the laminating gap to form heat-pressed paper; one of the upper pressing roller and the lower pressing roller is connected to a first motor; the winding unit comprises: a winding roller and a finished wrinkled paper roller; the winding roller is driven by a second motor; and the finished wrinkled paper roller is driven by the winding roller. The wrinkling device for producing wrinkled cloth-like paper of the present application utilizes the tension difference between the raw material layers during processing to form primary wrinkles, and the primary wrinkles can be further adjusted to secondary wrinkles by the difference between the output speed of the laminating unit and the winding speed of the winding unit.

Description

Technical Field

[0001] The present application relates to a production device for sanitary products, and in particular to a production device for reinforced wrinkled wiping paper. Background Art

[0002] Currently, disposable medical and daily hygiene products on the domestic market primarily consist of non-woven fabrics and regular toilet paper. While non-woven fabrics offer excellent wiping performance when wet, their high cost and price make them difficult for everyday consumers to accept. Furthermore, non-woven fabrics are insoluble in water and are not easily degraded, leading to linting and pilling with repeated wiping. Regular toilet paper products are inexpensive and easily decomposed, but they also perform poorly when submerged in water.

[0003] When used as a disposable medical product, if it needs to be wiped, ordinary imitation cloth paper has a smooth surface and low friction, making it difficult to effectively hold it. How to improve the friction while maintaining the performance of the imitation cloth paper has become a technical problem that needs to be solved urgently.

[0004] Patent 201510329891.X discloses equipment and methods for producing wrinkled, cloth-like paper. The wrinkles are formed by humidifying the paper and then drying it. However, this technology has the following drawbacks: First, the wrinkles on the cloth-like paper after humidification and drying are uneven and unsightly; second, after the paper absorbs water and is dried, some fibers adhere to each other, affecting its ability to absorb water again. Multiple tests have shown that the water absorption of the cloth-like paper decreases by at least 15% after drying; and third, drying after humidification consumes a lot of energy. Summary of the Invention

[0005] In view of the above problems, the present application aims to propose a production device for reinforced wrinkled wiping paper, which can produce uniform wrinkles without sacrificing the water absorption performance of cloth-like paper, without the need for drying, and saves energy.

[0006] The production equipment of the reinforced wrinkled wiping paper of the present application comprises: a raw material unit, a pressing unit, and a winding unit;

[0007] The raw material unit includes: a first paper roller, a grid-shaped wire tendon roller, and a third paper roller; the first paper roller, the grid-shaped wire tendon roller, and the third paper roller are torque-controllable rollers; the first paper roller is used to wind the first paper as the raw material; the grid-shaped wire tendon roller is used to wind the grid-shaped wire tendon as the raw material; and the third paper roller is used to wind the third paper as the raw material;

[0008] The laminating unit includes an upper pressing roller and a lower pressing roller; a laminating gap is formed between the upper pressing roller and the lower pressing roller, and the upper pressing roller and the lower pressing roller are used to thermally press the raw material passing through the laminating gap to form a thermally pressed paper; one of the upper pressing roller and the lower pressing roller is connected to the first motor as a driving roller;

[0009] The winding unit includes: a winding roller and a finished crepe paper roller; the winding roller is driven by a second motor; the finished crepe paper roller is driven by the winding roller; the finished crepe paper roller is used to wind and install the hot pressing paper;

[0010] There is a tension difference between the raw materials between the raw material unit and the laminating unit; among them, the tension of the first paper and the tension of the third paper are less than the tension of the grid-shaped ribs, which causes the hot-pressed paper output by the laminating unit to form a wrinkle due to the tension difference.

[0011] Preferably, it further comprises a motor operation adjustment unit;

[0012] The first motor is connected to a first motor speed sensor; the second motor is connected to a second motor speed sensor; the motor operation adjustment unit controls the first motor and the second motor according to the motor speeds sensed by the first motor speed sensor and the second motor speed sensor, so that the linear speed of the outer peripheral surface of the hot pressing paper wound on the winding roller is less than the linear speed when the hot pressing paper is output to the pressing unit, thereby redistributing the stress of the hot pressing paper, and adjusting the primary wrinkles to form secondary wrinkles.

[0013] Preferably, the apparatus further comprises a second paper roller, which is also a roller with controllable torque; the second paper roller is used to wind the second paper as the raw material; the second paper and the first paper are stacked and passed through the laminating unit;

[0014] The tension of the second paper is also less than the tension of the mesh-like tendons.

[0015] Preferably, it further comprises a tension control unit;

[0016] A first paper roller tension sensor is provided between the first paper roller and the laminating unit for measuring the tension of the first paper;

[0017] A second paper roller tension sensor is provided between the second paper roller and the laminating unit for measuring the tension of the second paper;

[0018] A grid-shaped wire reinforcement roller tension sensor is provided between the grid-shaped wire reinforcement roller and the pressing unit to measure the tension of the grid-shaped wire reinforcement;

[0019] A third paper roller tension sensor is provided between the third paper roller and the upper pressing roller and the lower pressing roller for measuring the tension of the third paper;

[0020] The tensions of the first paper, the second paper, the grid-shaped tendons, and the third paper are respectively sent to a tension control unit; the tension control unit controls the torques of the first paper roller, the second paper roller, the grid-shaped tendons roller, and the third paper roller, so that the tensions of the first paper, the second paper, the grid-shaped tendons, and the third paper are respectively maintained at predetermined values.

[0021] Preferably, the pressing gap between the upper pressing roller and the lower pressing roller is adjustable.

[0022] Preferably, the device further comprises a heating control unit;

[0023] The upper pressing roller is formed with an upper pressing roller heating element and a second temperature sensor; the upper pressing roller heating element is used to heat the upper pressing roller, and the second temperature sensor is used to measure the temperature of the upper pressing roller;

[0024] The lower pressing roller is provided with a lower pressing roller heating element and a first temperature sensor. The lower pressing roller heating element is used to heat the lower pressing roller, and the first temperature sensor is used to measure the temperature of the lower pressing roller.

[0025] The first temperature sensor and the second temperature sensor are connected to the heating control unit. The heating control unit controls the lower pressing roller heating element according to the temperature measured by the first temperature sensor, and controls the lower and upper pressing roller heating elements according to the temperature measured by the second temperature sensor.

[0026] The production equipment of reinforced wrinkled wiping paper of the present application uses the tension difference between the raw material layers during the processing to form primary wrinkles, and can further form secondary wrinkles through the difference between the output speed of the pressing unit and the winding speed of the winding unit. Not only is it different from the wrinkling method of the prior art, it does not require water soaking or corresponding drying during the wrinkling process, and the density of the wrinkles can be adjusted through the secondary wrinkling, making the wrinkles more uniform; it saves energy and can better control the wrinkle density. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a production device for reinforced wrinkled wiping paper according to the present invention;

[0028] in:

[0029] 1: Finished crepe paper roller; 2: Winding roller; 3, 4, 5, 10, 13, 17, 20, 21: Guide rollers;

[0030] 6: First temperature sensor; 7: Lower pressing roller heating element; 8: Lower pressing roller; 9: Heating control unit;

[0031] 11: First paper roller tension sensor; 12: Grid-shaped rib roller tension sensor; 14: First paper roller;

[0032] 15: Second paper roller tension sensor; 16: Second paper roller; 18: Third paper roller;

[0033] 19: Grid-shaped rib roller; 22: Third paper roller tension sensor; 23: Upper pressure roller heating element;

[0034] 24: Upper pressing roller; 25: First motor (pressing roller motor); 26: Pressing roller motor speed sensor;

[0035] 27: Second temperature sensor; 28: Gap adjustment motor; 29: Gap sensor;

[0036] 30: Motor operation adjustment unit; 31: Sensor data processing unit; 32: Display unit;

[0037] 33: Central processing unit; 34: Key unit; 35: Second motor (winding motor);

[0038] 36: Winding motor speed sensor; tension control unit 37. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0040] like Figure 1 As shown, an embodiment of the present invention discloses a production apparatus for reinforced wrinkled wiping paper, comprising: a control system and, arranged from upstream to downstream, a first paper roller 14, a second paper roller 16, a gridded rib roller 19, a third paper roller 18, a laminating unit, a gap adjustment unit, and a winding roller 2. The first paper roller 14, the second paper roller 16, the gridded rib roller 19, and the third paper roller 18 constitute a raw material unit.

[0041] Although Figure 1 What is shown in the figure is that one layer of grid is laminated with three layers of paper, but it can also be laminated with two layers of paper, four layers of paper or more layers of paper.

[0042] The pressing unit includes an upper pressing roller 24 and a lower pressing roller 8 .

[0043] A plurality of guide rollers 3, 4, 5, 10, 13, 17, 20, 21 are arranged between the raw material unit and the pressing unit to change the direction of the raw material.

[0044] The gap adjustment unit includes an upper pressing roller 24 and a gap adjustment motor 28 that drives the upper pressing roller to move up and down.

[0045] The control system includes a central processing unit 33 and a sensor data processing unit 31 electrically connected to the central processing unit 33 , a motor operation adjustment unit 30 , a display unit 32 , a button unit 34 , a tension control unit 37 and a heating control unit 9 .

[0046] The sensor data processing unit 31 is electrically connected to the lamination roller motor speed sensor 26, the gap sensor 29, the first temperature sensor 6, the second temperature sensor 27, the first paper roller tension sensor 11, the second paper roller tension sensor 15, the grid-shaped rib roller tension sensor 12, the third paper roller tension sensor 22 and the winding roller motor speed sensor 36.

[0047] The motor operation adjustment unit 30 is electrically connected to the gap adjustment motor 28 , the pressing roller motor 25 , and the winding roller motor 35 .

[0048] The heating control unit 9 is electrically connected to the upper pressing roller heating element 23 and the lower pressing roller heating element 7 provided in the upper pressing roller 24 and the lower pressing roller 8 .

[0049] The first paper roller 14, the second paper roller 16, the gridded reinforcing roller 19, and the third paper roller 18 are rollers equipped with magnetic powder clutches. Other methods can also be used to achieve torque control for the first paper roller 14, the second paper roller 16, the gridded reinforcing roller 19, and the third paper roller 18. The magnetic powder clutch is only one method of achieving torque control, and this application is not limited to rollers using magnetic powder clutches to achieve torque control.

[0050] The tension control unit 37 is connected to the first paper roller 14 , the second paper roller 16 , the gridded wire roller 19 , and the third paper roller 18 to control their torques.

[0051] The production equipment for reinforced wrinkle-coated wiping paper of this application adjusts the tension between the first, second, and third paper rollers 14, 16, and 18, as well as the gridded rib roller 19, and the laminating unit (i.e., the upper and lower pressing rollers 24 and 8). This tension difference creates a tension between each roller, resulting in instantaneous wrinkling of the cloth-like paper after hot lamination, which is known as a primary wrinkle. Furthermore, the tension of the paper above and below the gridded ribs can be different, allowing for different wrinkle densities on each side of the reinforced wrinkle-coated wiping paper.

[0052] After the primary wrinkle is formed, although the reinforced wrinkle wiping paper has been formed, the density of the primary wrinkle is difficult to control and is often too dense, uneven, and unsightly. For this reason, in another embodiment, a secondary wrinkle formation process is added.

[0053] The data from the laminating roller motor speed sensor 26 and the winding roller motor speed sensor 36 are processed by the sensor data processing unit 31 and then sent to the central processing unit 33 for calculation, and the motor operation adjustment unit 30 is instructed to control the laminating roller motor speed and the winding roller motor speed, so that the linear speed of the winding motor 35 is slightly smaller than the linear speed of the laminating motor 25, forming a linear speed difference, causing the stress of the primary reinforced wrinkle wiping paper to be redistributed, forming new wrinkles, which are secondary wrinkles.

[0054] The secondary wrinkles are more controllable, the density is easier to control, the wrinkles are more uniform, and the appearance is more beautiful. The density of the secondary wrinkles can be adjusted by fine-tuning the linear speed difference between the winding motor 35 and the pressing motor 25.

[0055] In the process of secondary wrinkle formation, primary wrinkles are only an intermediate state or transition state, which will not appear in the final product.

[0056] While ensuring the adhesion strength between the layers of fabric-like paper, achieving optimal water absorption can be achieved by adjusting the gap between the upper and lower pressing rollers 24 and 8. Gap setting data is input to the central processing unit 33 via the keypad 34. The central processing unit 33 calculates and instructs the motor operation adjustment unit 30, causing the gap adjustment motor 28 to drive the upper pressing roller 24 to adjust the gap.

[0057] Unless otherwise defined, all technical and / or scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which the invention relates. The materials, methods, and examples mentioned in this application are illustrative only and not restrictive.

[0058] Although the present invention has been described in conjunction with specific embodiments, those skilled in the art may make appropriate substitutions, modifications and changes within the scope of the invention of this application, and such substitutions, modifications and changes shall still fall within the scope of protection of this application.

Claims

1. A production device for reinforced wrinkled wiping paper, comprising: Raw material unit, pressing unit, winding unit; The raw material unit includes: a first paper roller, a grid-shaped wire reinforcement roller, and a third paper roller; the first paper roller, the grid-shaped wire reinforcement roller, and the third paper roller are torque-controllable rollers; the first paper roller is used to wind a first paper as a raw material; the grid-shaped wire reinforcement roller is used to wind a grid-shaped wire reinforcement as a raw material; and the third paper roller is used to wind a third paper as a raw material. The raw material unit further includes: a second paper roller; the second paper roller is also a torque-controllable roller; the second paper roller is used to wind a second paper as a raw material; the second paper and the first paper are stacked and passed through a laminating unit; the tension of the second paper is also less than the tension of the grid-shaped wire reinforcement; The laminating unit includes an upper pressing roller and a lower pressing roller; a laminating gap is formed between the upper pressing roller and the lower pressing roller, and the upper pressing roller and the lower pressing roller are used to thermally press the raw material passing through the laminating gap to form a thermally pressed paper; one of the upper pressing roller and the lower pressing roller is connected to the first motor as a driving roller; The winding unit includes: a winding roller and a finished crepe paper roller; the winding roller is driven by a second motor; the finished crepe paper roller is driven by the winding roller; the finished crepe paper roller is used to wind and install the hot pressing paper; There is a tension difference between the raw materials between the raw material unit and the laminating unit; the tension of the first paper and the third paper is less than the tension of the grid-shaped ribs, which causes the heat-pressed paper output by the laminating unit to form a primary wrinkle due to the tension difference; The invention further comprises a motor operation adjustment unit; the first motor is connected to a first motor speed sensor; the second motor is connected to a second motor speed sensor; the motor operation adjustment unit controls the first motor and the second motor according to the motor speeds sensed by the first motor speed sensor and the second motor speed sensor, so that the linear speed of the outer peripheral surface of the hot pressed paper wound on the winding roller is lower than the linear speed of the hot pressed paper when it is output from the pressing unit, thereby redistributing the stress of the hot pressed paper, adjusting the primary wrinkles and forming secondary wrinkles; It further includes a tension control unit; a first paper roller tension sensor is provided between the first paper roller and the laminating unit for measuring the tension of the first paper; a second paper roller tension sensor is provided between the second paper roller and the laminating unit for measuring the tension of the second paper; a grid-shaped wire reinforcement roller tension sensor is provided between the grid-shaped wire reinforcement roller and the laminating unit for measuring the tension of the grid-shaped wire reinforcement; a third paper roller tension sensor is provided between the third paper roller and the upper pressure roller and the lower pressure roller for measuring the tension of the third paper; the tensions of the first paper, the second paper, the grid-shaped wire reinforcement and the third paper are respectively sent to the tension control unit; the tension control unit controls the torques of the first paper roller, the second paper roller, the grid-shaped wire reinforcement roller and the third paper roller, so that the tensions of the first paper, the second paper, the grid-shaped wire reinforcement and the third paper are respectively maintained at predetermined values.

2. The production equipment of reinforced wrinkled wiping paper according to claim 1, characterized in that: The pressing gap between the upper pressing roller and the lower pressing roller is adjustable.

3. The production equipment of reinforced wrinkled wiping paper according to claim 1, characterized in that: further comprising a heating control unit; The upper pressing roller is formed with an upper pressing roller heating element and a second temperature sensor; the upper pressing roller heating element is used to heat the upper pressing roller, and the second temperature sensor is used to measure the temperature of the upper pressing roller; The lower pressing roller is formed with a lower pressing roller heating element and a first temperature sensor; the lower pressing roller heating element is used to heat the lower pressing roller, and the first temperature sensor is used to measure the temperature of the lower pressing roller; The first temperature sensor and the second temperature sensor are connected to the heating control unit. The heating control unit controls the lower pressing roller heating element according to the temperature measured by the first temperature sensor, and controls the upper pressing roller heating element according to the temperature measured by the second temperature sensor.

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