Double-layer wood pulp polymer core equipment

Abstract

The utility model relates to the field of disposable hygienic products, in particular to double-layer wood pulp polymer core equipment. Comprising a rack as well as a first forming device, a second forming device, a first unwinding device, a second unwinding device, a winding device, a first macromolecule applying device, a second macromolecule applying device, a first wood pulp applying device and a second wood pulp applying device which are arranged on the rack, the first polymer applying device and the first wood pulp applying device are respectively arranged on the first forming device, and a first non-woven fabric unwound by the first unwinding device is input into the first forming device; the second macromolecule applying device and the second wood pulp applying device are respectively arranged on the second forming device, and a second non-woven fabric unwound by the second unwinding device is input into the second forming device; the second non-woven fabric output by the second forming device and the first non-woven fabric output by the first forming device are combined and then input into the winding device. The technical problem of unstable addition of macromolecules and wood pulp in a double-layer wood pulp macromolecule core body is solved.

Description

Technical Field

[0001] The utility model relates to the field of disposable sanitary products, in particular to a double-layer wood pulp polymer core device. Background Art

[0002] At present, in the production process of disposable sanitary products, wood pulp and polymers play the functions of absorbing and storing liquids in the products, which are crucial to the performance of the products. In traditional equipment, the formation of wood pulp generally involves the wood pulp paper being conveyed into a pulverizer. The pulverizer breaks the wood pulp paper into fibers of a certain size through saw teeth, and then fixes the fibers with a forming bin and a die wheel into a core of the required size for the product. During this process, the polymer enters the feeding bin through a pumping machine and enters the forming bin through blowing, and the mixing of wood pulp and polymer is realized in the forming bin, and finally the core is formed. Reference can be made to a device for manufacturing an absorbent core disclosed in Chinese Patent Application No.: CN202210900619.2, which includes a frame, a controller, a first material conveying mechanism, a second material conveying mechanism, a first sizing mechanism, a second sizing mechanism, a first pressing roller, a second pressing roller, a polymer material compounding mechanism, a second polymer material compounding mechanism and a compounding roller provided on the frame. Both the polymer material compounding mechanism and the second polymer material compounding mechanism include a first transfer roller, a second transfer roller, a polymer storage cylinder and a third sizing mechanism. The first transfer roller is provided with a negative pressure adsorption mechanism, and the surface of the first transfer roller is provided with multi-cell continuous polymer adsorption grooves with different polymer contents corresponding to the requirements of the polymer distribution amount in each prefabricated absorbent core unit.

[0003] In traditional equipment, the mixing of wood pulp and polymer depends on the flow direction of the air flow in the forming bin, which is inconvenient to adjust and difficult to control the effect. Especially in the double-layer wood pulp polymer core, there are many unstable situations. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a double-layer wood pulp polymer core device, which solves the technical problem of unstable addition of polymer and wood pulp in the double-layer wood pulp polymer core.

[0005] To achieve the above object, the utility model adopts the following technical solutions: A double-layer wood pulp polymer core device includes a frame and a first forming device, a second forming device, a first unwinding device, a second unwinding device, a winding device, a first polymer applying device, a second polymer applying device, a first wood pulp applying device, and a second wood pulp applying device provided on the frame;

[0006] The first polymer application device and the first wood pulp application device are respectively arranged on the first forming device. The first non-woven fabric unwound by the first unwinding device is input into the first forming device to receive the application of the first polymer application device and the first wood pulp application device.

[0007] The second polymer application device and the second wood pulp application device are respectively arranged on the second forming device. The second non-woven fabric unwound by the second unwinding device is input into the second forming device to receive the application of the second polymer application device and the second wood pulp application device.

[0008] The second non-woven fabric output by the second forming device and the first non-woven fabric output by the first forming device are compounded and then input into the winding device to realize winding.

[0009] Furthermore, a first glue spraying device is arranged on the frame at the input end of the first forming device to realize glue application to the first non-woven fabric.

[0010] Furthermore, a second glue spraying device is arranged on the frame at the input end of the second forming device to realize glue application to the second non-woven fabric.

[0011] Furthermore, the second non-woven fabric is output by the second forming device and then input into the first forming device, and then output by the first forming device.

[0012] Furthermore, a pressing roller for rolling the first non-woven fabric and the second non-woven fabric is arranged on the first forming device.

[0013] Furthermore, an oscillating device for oscillating the composite material of the first non-woven fabric and the second non-woven fabric is arranged on one side of the frame in the output direction of the pressing roller.

[0014] Furthermore, the first wood pulp application device and the first polymer application device are arranged in sequence according to the conveying direction of the first non-woven fabric.

[0015] Furthermore, the second polymer application device and the second wood pulp application device are arranged in sequence according to the conveying direction of the second non-woven fabric.

[0016] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are:

[0017] 1. In this solution, the first forming device, the first polymer application device, and the first wood pulp application device are used to separately apply polymers and wood pulp to the first non-woven fabric. The second forming device, the second polymer application device, and the second wood pulp application device are used to apply polymers and wood pulp to the second non-woven fabric. Then, the first non-woven fabric and the second non-woven fabric are laminated to form the core. Since the wood pulp and the polymer are added separately, they are not affected by the air flow during the mixing process, thus eliminating the uncontrollability of the air flow. Moreover, separate control also means that the amounts of the wood pulp and the polymer can be freely changed. Therefore, through precise adjustment, a core that meets the actual requirements can be produced. Since both the first forming device and the second forming device are under negative pressure, after separate application, the thickness of the single wood pulp is relatively thin, which enables the polymer to more easily enter the interior of the wood pulp, achieving a certain degree of fusion between the wood pulp and the polymer. Through a layered design, the best core effect can be achieved.

[0018] 2. The provision of the first glue spraying device and the second glue spraying device can fix the wood pulp, the polymer, the first non-woven fabric, and the second non-woven fabric separately, and is also conducive to the lamination between the first non-woven fabric and the second non-woven fabric.

[0019] 3. After being output by the second forming device, the second non-woven fabric is input into the first forming device and then output via the first forming device. This is to enable the second non-woven fabric to undergo negative pressure adsorption again to achieve a tight fit with the first non-woven fabric. Moreover, a pressure roller is added to enhance the strength of the lamination. In addition, an oscillation device is added, which is conducive to the uniformity of the polymer in the wood pulp.

[0020] 4. The first wood pulp application device and the first polymer application device are arranged in sequence along the conveying direction of the first non-woven fabric, and the second polymer application device and the second wood pulp application device are arranged in sequence along the conveying direction of the second non-woven fabric. Such an arrangement is mainly to achieve the stratification of the polymer, forming a distribution of two layers of polymers with a certain distance, resulting in a better absorption effect. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the present utility model.

[0022] Reference Signs:

[0023] 1. Frame; 21. First forming device; 22. Second forming device; 31. First unwinding device; 32. Second unwinding device; 4. Rewinding device; 51. First polymer application device; 52. Second polymer application device; 61. First wood pulp application device; 62. Second wood pulp application device; 71. First glue spraying device; 72. Second glue spraying device; 81. Pressure roller; 82. Oscillation device. Detailed Embodiments

[0024] The present utility model will be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] Referring Figure 1 , this embodiment provides a double-layer wood pulp polymer core equipment, including a frame 1 and a first forming device 21, a second forming device 22, a first unwinding device 31, a second unwinding device 32, a winding device 4, a first polymer application device 51, a second polymer application device 52, a first wood pulp application device 61, and a second wood pulp application device 62 provided on the frame 1;

[0026] The first polymer application device 51 and the first wood pulp application device 61 are respectively provided on the first forming device 21, and the first non-woven fabric unwound by the first unwinding device 31 is input into the first forming device 21 to receive the application of the first polymer application device 51 and the first wood pulp application device 61;

[0027] The second polymer application device 52 and the second wood pulp application device 62 are respectively provided on the second forming device 22, and the second non-woven fabric unwound by the second unwinding device 32 is input into the second forming device 22 to receive the application of the second polymer application device 52 and the second wood pulp application device 62;

[0028] The second non-woven fabric output by the second forming device 22 is compounded with the first non-woven fabric output by the first forming device 21 and then input into the winding device 4 to realize winding.

[0029] A first glue spraying device 71 is provided on the frame 1 at the input end of the first forming device 21 to realize the glue application of the first non-woven fabric. A second glue spraying device 72 is provided on the frame 1 at the input end of the second forming device 22 to realize the glue application of the second non-woven fabric.

[0030] The second non-woven fabric is output by the second forming device 22 and then input into the first forming device 21, and then output by the first forming device 21. A pressing roller 81 for rolling the first non-woven fabric and the second non-woven fabric is provided on the first forming device 21. An oscillating device 82 for oscillating the composite material of the first non-woven fabric and the second non-woven fabric is provided on one side of the frame 1 in the output direction of the pressing roller 81.

[0031] The first wood pulp application device 61 and the first polymer application device 51 are arranged in sequence according to the conveying direction of the first non-woven fabric. The second polymer application device 52 and the second wood pulp application device 62 are arranged in sequence according to the conveying direction of the second non-woven fabric.

[0032] In the above solution, the first forming device 21, the second forming device 22, the first unwinding device 31, the second unwinding device 32, the winding device 4, the first polymer applying device 51, the second polymer applying device 52, the first wood pulp applying device 61, the second wood pulp applying device 62, the pressing roller 81, and the oscillating device 82 are all conventional devices in the art. In the patents previously disclosed by the applicant, the above devices have been correspondingly disclosed. This solution adjusts the arrangement of the devices, changing the relative positional relationship between the devices, thereby achieving a better synergistic effect. It also changes the material flow direction, resulting in a better forming effect for the double-layer wood pulp polymer core.

[0033] The beneficial effects of the present utility model are as follows:

[0034] 1. In this solution, the first forming device, the first polymer applying device, and the first wood pulp applying device separately apply polymer and wood pulp to the first non-woven fabric, and the second forming device, the second polymer applying device, and the second wood pulp applying device apply polymer and wood pulp to the second non-woven fabric. Then, the first non-woven fabric and the second non-woven fabric are laminated to form a core. Since the wood pulp and the polymer are added separately, they are not affected by the air flow during the mixing process, thus eliminating the uncontrollability of the air flow. And separate control also means that the amounts of the wood pulp and the polymer can be freely changed, so that through precise adjustment, a core that meets the actual requirements can be produced. Since both the first forming device and the second forming device are under negative pressure, after separate application, the thickness of the single wood pulp is relatively thin, which makes it easier for the polymer to enter the wood pulp, achieving a certain degree of fusion between the wood pulp and the polymer. Through a layered design, the best core effect is achieved.

[0035] 2. The settings of the first glue spraying device and the second glue spraying device can fix the wood pulp, polymer, the first non-woven fabric, and the second non-woven fabric respectively, and are also beneficial to the lamination between the first non-woven fabric and the second non-woven fabric.

[0036] 3. After the second non-woven fabric is output from the second forming device, it is input into the first forming device and then output via the first forming device. This is to make the second non-woven fabric undergo negative pressure adsorption again to achieve a tight fit with the first non-woven fabric. And a pressing roller is added to strengthen the lamination strength. Moreover, an oscillating device is added, which is beneficial to the uniformity of the polymer in the wood pulp.

[0037] 4. The first wood pulp applying device and the first polymer applying device are arranged in sequence along the conveying direction of the first non-woven fabric, and the second polymer applying device and the second wood pulp applying device are arranged in sequence along the conveying direction of the second non-woven fabric. Such an arrangement is mainly to achieve the stratification of the polymer, forming a distribution of two layers of polymer with a certain distance, resulting in a better absorption effect.

[0038] Although the present utility model is specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims, and all such changes are within the protection scope of the present utility model.

Claims

1. A double-layer wood pulp polymer core equipment, characterized by: It comprises a frame and a first forming device, a second forming device, a first unwinding device, a second unwinding device, a winding device, a first polymer applying device, a second polymer applying device, a first wood pulp applying device, and a second wood pulp applying device arranged on the frame; The first polymer applying device and the first wood pulp applying device are respectively arranged on the first forming device, and the first nonwoven fabric unwound by the first unwinding device is input into the first forming device to be applied by the first polymer applying device and the first wood pulp applying device; The second polymer applying device and the second wood pulp applying device are respectively arranged on the second forming device, and the second nonwoven fabric unwound by the second unwinding device is input into the second forming device to be applied by the second polymer applying device and the second wood pulp applying device; The second non-woven fabric outputted by the second molding device is compounded with the first non-woven fabric outputted by the first molding device and then input into the winding device for winding.

2. A double-layer wood pulp polymer core device according to claim 1, characterized in that: A first glue spraying device is arranged on the frame at the input end of the first forming device to realize glue application on the first non-woven fabric.

3. The double-layer wood pulp polymer core equipment according to claim 1, characterized in that: A second glue spraying device is arranged on the frame at the input end of the second forming device to realize glue application on the second non-woven fabric.

4. The double-layer wood pulp polymer core equipment according to claim 1, characterized in that: The second nonwoven fabric is output from the second forming device and then input into the first forming device, and then output through the first forming device.

5. A double-layer wood pulp polymer core device according to claim 4, characterized in that: The first forming device is provided with a pressing roller for rolling the first non-woven fabric and the second non-woven fabric.

6. A double-layer wood pulp polymer core device according to claim 5, characterized in that: An oscillating device for oscillating the composite material of the first non-woven fabric and the second non-woven fabric is arranged on one side of the frame located in the output direction of the pressing roller.

7. The double-layer wood pulp polymer core equipment according to claim 1, characterized in that: The first wood pulp applying device and the first polymer applying device are arranged in sequence according to the conveying direction of the first non-woven fabric.

8. The double-layer wood pulp polymer core equipment according to claim 1, characterized in that: The second polymer applying device and the second wood pulp applying device are sequentially arranged along the conveying direction of the second nonwoven fabric.

Images