Anti-oil absorption chemical fiber paper tube and its preparation process

Abstract

The present invention discloses an oil-absorbing resistant chemical fiber paper tube and its preparation process. The tube is formed by winding cardboard and then cutting it into small sections. The cardboard includes an outer layer of parchment, a middle layer of parchment, and an inner layer of parchment. Several layers of ordinary paper are disposed between the outer and middle layers of parchment, and several layers of ordinary paper are disposed between the middle and inner layers of parchment. Adjacent layers of ordinary paper are bonded to each other, and ordinary paper is bonded to the outer, middle, or inner layers of parchment. The outer, middle, and inner layers of parchment are formed from a single sheet of parchment by repeated bending. When the cardboard is wound, adjacent turns of the cardboard are bonded to each other. Compared to existing paper tubes that simply have a layer of parchment on the outer layer, the oil-absorbing resistant chemical fiber paper tube of the present application has significantly improved oil absorption resistance and enhanced structural strength, overcoming the problem of poor adhesion between parchment and ordinary paper. This improves the service life of the chemical fiber paper tube.

Description

Technical Field

[0001] The present invention belongs to the technical field of chemical fiber paper tubes, and in particular relates to an oil-absorption resistant chemical fiber paper tube and a preparation process thereof. Background Art

[0002] Chemical fiber paper tubes are used to wrap chemical fiber yarns during the spinning process. Existing chemical fiber paper tubes are generally made by gluing paper, rolling it into a tube, and then cutting it. The strength, concentricity, and surface smoothness of chemical fiber paper tubes are all important performance indicators. During use, chemical fiber paper tubes need to come into contact with oily silk threads for a long time. This oil is easily absorbed by the paper of the chemical fiber paper tube. After the chemical fiber paper tube absorbs the oil from the silk threads, its structural strength will be reduced, causing the paper tube to deform and lose its smoothness, ultimately affecting the normal progress of subsequent spinning. To solve this problem, a parchment paper sleeve is generally directly put on the outer surface of an ordinary paper tube. The oil-resistant and smooth properties of parchment paper are used to solve the oil absorption problem of the chemical fiber paper tube. However, this method cannot completely solve the oil absorption problem. Due to the different shrinkage rates between parchment paper and ordinary paper, the parchment paper and ordinary paper can easily separate, causing the parchment paper to fall off, affecting the normal use of the chemical fiber paper tube. Summary of the Invention

[0003] To solve the above technical problems, the technical solution adopted by the present invention is: an oil-absorbing resistant chemical fiber paper tube is formed by cutting cardboard into small sections after winding, and the cardboard includes an outer layer of parchment, a middle layer of parchment and an inner layer of parchment, and several layers of ordinary paper are arranged between the outer layer of parchment and the middle layer of parchment, and several layers of ordinary paper are arranged between the middle layer of parchment and the inner layer of parchment. Adjacent ordinary paper layers are bonded to each other, and ordinary paper is bonded to the outer layer of parchment, the middle layer of parchment or the inner layer of parchment. The outer layer of parchment, the middle layer of parchment and the inner layer of parchment are formed by repeatedly bending a piece of parchment, and adjacent two layers of the cardboard are bonded to each other when the cardboard is wound.

[0004] The method for preparing an oil-absorbing resistant chemical fiber paper tube comprises the following steps: sequentially bonding a plurality of sheets of ordinary paper to form an ordinary paper composite layer; bending a sheet of parchment paper multiple times to form an outer parchment layer, a middle parchment layer, and an inner parchment layer that are sequentially connected, and applying glue to the inner surface of the outer parchment layer, the inner surface and outer surface of the middle parchment layer, and the outer surface of the inner parchment layer; inserting the ordinary paper composite layer between the outer parchment layer and the middle parchment layer, and between the middle parchment layer and the inner parchment layer, respectively, to form a paperboard; pressing the paperboard, and after the glue is cured, winding the paperboard into a roll, applying glue between two adjacent paperboard turns to bond them together to obtain a long paper tube; and cutting the long paper tube to obtain an oil-absorbing resistant chemical fiber paper tube.

[0005] As a preferred embodiment of the above technical solution, the parchment is bent using a forming device to obtain an outer parchment, a middle parchment and an inner parchment connected in sequence. The forming device includes a forming tube, the front end of the forming tube has a square flat paper input section, and the rear end has an outer parchment output section, a middle parchment output section, and an inner parchment output section arranged from bottom to top. The outer parchment output section and the middle parchment output section are connected by a bending section, and the inner parchment output section and the outer parchment output section are connected by another bending section. The flat paper input section gradually and smoothly transitions to form an outer parchment output section, a middle parchment output section, and an inner parchment output section arranged from bottom to top.

[0006] As a preferred embodiment of the above technical solution, the rear end of the forming tube is provided with an upper conveying roller layer and a lower conveying roller layer located below the upper conveying roller layer, the upper conveying roller layer is located between the middle parchment layer and the inner parchment layer, and the lower conveying roller layer is located between the outer parchment layer and the middle parchment layer, the upper conveying roller layer and the lower conveying roller layer are respectively composed of a number of conveying rollers, and the conveying rollers of the upper conveying roller layer and the conveying rollers of the lower conveying roller layer are staggered with each other.

[0007] As a preferred embodiment of the above technical solution, the upper conveying roller layer and the lower conveying roller layer are both divided into a front half and a rear half, and the diameter of the conveying rollers in the rear half is smaller than that in the front half.

[0008] As a preferred embodiment of the above technical solution, a plurality of glue coating rollers are provided between the conveying rollers in the second half.

[0009] As a preferred embodiment of the above technical solution, the cardboard pressing is carried out in a pressing groove, and a pressing roller is provided above the pressing groove.

[0010] The beneficial effects of the present invention are as follows: the oil-absorbing resistant chemical fiber paper tube of the present application combines a whole sheet of parchment with ordinary paper to produce a paperboard with parchment on the outside, inside, and inside. After being wound into a roll, the chemical fiber paper tube can be interspersed with multiple layers of parchment. Compared to existing paper tubes that simply wrap a single layer of parchment on the outside, the oil-absorbing resistance of the tube is greatly improved, and the structural strength is also enhanced, overcoming the problem of poor adhesion between parchment and ordinary paper. This also increases the service life of the chemical fiber paper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of the oil-absorption resistant chemical fiber paper tube of the present invention;

[0012] Figure 2 It is a schematic diagram of the structure of the cardboard;

[0013] Figure 3 It is a structural diagram of the flat paper feeding section;

[0014] Figure 4It is a structural diagram of the transition state in the middle of the forming tube;

[0015] Figure 5 It is a structural diagram of the rear end of the forming tube;

[0016] Figure 6 It is a structural schematic diagram of the upper conveying roller layer and the lower conveying roller layer;

[0017] Figure 7 This is a structural diagram of the upper conveyor roller layer and the lower conveyor roller layer from another angle;

[0018] Figure 8 It is a structural diagram of the pressing groove. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0022] like Figure 1-2As shown, the oil-absorption-resistant chemical fiber paper tube is formed by winding cardboard and then cutting it into small sections. The cardboard includes an outer parchment layer 1, a middle parchment layer 2, and an inner parchment layer 3. Several layers of ordinary paper 4 are interposed between the outer and middle parchment layers 1 and 2, and between the middle and inner parchment layers 2 and 3. Adjacent layers of ordinary paper 4 are bonded to each other, and the ordinary paper 4 is bonded to the outer parchment layer 1, the middle parchment layer 2, or the inner parchment layer 3. The outer, middle, and inner parchment layers 1, 2, and 3 are formed from a single sheet of parchment paper by repeated bending. When the cardboard is wound, adjacent turns are bonded to each other. The ordinary paper 4 can be made of commonly used corrugated paper.

[0023] The preparation method of the oil-absorbing resistant chemical fiber paper tube is as follows: Figure 1-8 As shown, the process includes the following steps: bonding several sheets of ordinary paper 4 to each other in sequence to form an ordinary paper composite layer 20; bending a piece of parchment paper multiple times to form an outer parchment layer 1, a middle parchment layer 2, and an inner parchment layer 3, which are connected in sequence; applying glue to the inner surface of the outer parchment layer 1, the inner surface and outer surface of the middle parchment layer 2, and the outer surface of the inner parchment layer 3; inserting the ordinary paper composite layer 20 between the outer parchment layer and the middle parchment layer 2, and between the middle parchment layer 2 and the inner parchment layer 3, respectively, to form paperboard; pressing the paperboard together, and after the glue is cured, winding the paperboard into a roll, applying glue between two adjacent paperboard turns to form a long paper tube; and cutting the long paper tube to obtain an oil-absorbing resistant chemical fiber paper tube.

[0024] Furthermore, the parchment is bent using a forming device to obtain an outer parchment 1, a middle parchment 2 and an inner parchment 3 connected in sequence. The forming device includes a forming tube, the front end of the forming tube has a square flat paper input section 5, and the rear end has an outer parchment output section 6, a middle parchment output section 7, and an inner parchment output section 8 arranged from bottom to top. The outer parchment output section 6 and the middle parchment output section 7 are connected by a bending section 9, and the inner parchment output section 8 and the outer parchment output section 6 are connected by another bending section 9. The flat paper input section 5 gradually and smoothly transitions to form the outer parchment output section 6, the middle parchment output section 7, and the inner parchment output section 8 arranged from bottom to top.

[0025] Furthermore, the rear end of the forming tube is provided with an upper conveyor roller layer 10 and a lower conveyor roller layer 11 located below the upper conveyor roller layer 10. The upper conveyor roller layer 10 is located between the middle parchment layer 2 and the inner parchment layer 3, and the lower conveyor roller layer 11 is located between the outer parchment layer 1 and the middle parchment layer 2. The upper conveyor roller layer 10 and the lower conveyor roller layer 11 are each composed of a plurality of conveyor rollers 13, and the conveyor rollers of the upper conveyor roller layer 10 and the conveyor rollers of the lower conveyor roller layer 11 are staggered. A bottom conveyor roller layer 12 is provided below the lower conveyor roller layer 11, and is composed of a plurality of conveyor rollers.

[0026] Furthermore, the upper and lower conveyor roller layers 10 and 11 are each divided into a front section 15 and a rear section 16. The diameter of the conveyor rollers 13 in the rear section 16 is smaller than that of the conveyor rollers 13 in the front section 15. The top ends of the conveyor rollers 13 in the rear section 16 are at the same height as the top ends of the conveyor rollers 13 in the front section 15. This allows the plain paper composite layer 20 to be inserted into the gap formed by the diameter difference without affecting the conveyance of the parchment paper.

[0027] Furthermore, a plurality of glue coating rollers 14 are provided between the conveying rollers in the second half. The glue coating rollers 14 are used to apply glue to the inner surface of the outer parchment 1, the inner and outer surfaces of the middle parchment 2, and the outer surface of the inner parchment 3.

[0028] Furthermore, the cardboard is pressed in a pressing groove 21 , and a pressing roller 22 is provided above the pressing groove 21 .

[0029] It is worth mentioning that the technical features such as the coating roller and the pressure roller involved in the patent application of this invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial arrangement method of these technical features can be selected by conventional means in the field and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0030] The above describes in detail the preferred specific embodiments of the present invention. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the present invention without creative work. Therefore, any technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the present invention on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. A method for preparing an oil-absorption resistant chemical fiber paper tube, characterized in that: The oil-absorbing resistant chemical fiber paper tube is formed by winding a cardboard and then cutting it into small sections. The cardboard includes an outer parchment, a middle parchment and an inner parchment. Several layers of ordinary paper are arranged between the outer parchment and the middle parchment. Several layers of ordinary paper are arranged between the middle parchment and the inner parchment. Adjacent ordinary papers are bonded. The outer parchment, the middle parchment and the inner parchment are formed by repeatedly bending a piece of parchment. When the cardboard is wound, adjacent two turns are bonded to each other. The preparation method includes the following steps: The sheets of parchment are sequentially bonded to form a composite layer of ordinary paper; a sheet of parchment is bent multiple times to form an outer parchment layer, a middle parchment layer, and an inner parchment layer connected in sequence; glue is applied to the inner surface of the outer parchment layer, the inner surface and outer surface of the middle parchment layer, and the outer surface of the inner parchment layer; the composite layer of ordinary paper is inserted between the outer and middle parchment layers, and between the middle and inner parchment layers, respectively, to form a paperboard; the paperboard is pressed together, and after the glue is cured, the paperboard is rolled into a roll, and glue is applied between two adjacent paperboard rolls to form a long paper tube; Cut the long paper tube to obtain the oil-absorbing resistant chemical fiber paper tube.

2. The method for preparing the oil-absorption resistant chemical fiber paper tube according to claim 1, wherein: The parchment is bent using a forming device to obtain an outer parchment layer, a middle parchment layer and an inner parchment layer connected in sequence. The forming device includes a forming tube, the front end of the forming tube has a square flat paper input section, and the rear end has an outer parchment output section, a middle parchment output section, and an inner parchment output section arranged from bottom to top. The outer parchment output section and the middle parchment output section are connected by a bending section, and the inner parchment output section and the outer parchment output section are connected by another bending section. The flat paper input section gradually and smoothly transitions to form an outer parchment output section, a middle parchment output section, and an inner parchment output section arranged from bottom to top.

3. The method for preparing the oil-absorption resistant chemical fiber paper tube according to claim 2, wherein: The rear end of the forming tube is provided with an upper conveying roller layer and a lower conveying roller layer located below the upper conveying roller layer. The upper conveying roller layer is located between the middle parchment layer and the inner parchment layer, and the lower conveying roller layer is located between the outer parchment layer and the middle parchment layer. The upper conveying roller layer and the lower conveying roller layer are respectively composed of a plurality of conveying rollers, and the conveying rollers of the upper conveying roller layer and the conveying rollers of the lower conveying roller layer are staggered with each other.

4. The method for preparing the oil-absorption resistant chemical fiber paper tube according to claim 3, wherein: The upper conveying roller layer and the lower conveying roller layer are both divided into a front half section and a rear half section, and the diameter of the conveying rollers in the rear half section is smaller than that in the front half section.

5. The method for preparing the oil-absorption resistant chemical fiber paper tube according to claim 4, wherein: A plurality of glue coating rollers are arranged between the conveying rollers in the rear half.

6. The method for preparing the oil-absorption resistant chemical fiber paper tube according to claim 5, wherein: The cardboard pressing is carried out in a pressing groove, and a pressing roller is provided above the pressing groove.

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