Paper bonding device for chemical fiber paper tube production

Abstract

The utility model discloses a paper bonding device for chemical fiber paper tube production, which comprises an upper unwinding roller, a lower unwinding roller, an upper glue spreading roller, a lower glue spreading roller, an upper pressing roller and a lower pressing roller, the upper pressing roller is driven by a pressing mechanism to press the lower pressing roller, upper paper is wound on the upper unwinding roller, lower paper is arranged on the lower unwinding roller, and the lower pressing roller is driven by a pressing mechanism to press the lower pressing roller. One side of the upper glue spreading roller and one side of the lower glue spreading roller are respectively provided with a glue spreading roller, each glue spreading roller comprises a roller surface pipe and a central shaft, a glue cavity is formed between the central shaft and the roller surface pipe, the circumferential surface of the roller surface pipe is provided with a plurality of glue outlet holes, and the central shaft is sleeved with an air bag. According to the gluing device, glue can be effectively and uniformly coated on paper, the paper is glued, the glue distribution uniformity in the paper gluing process is improved, the problems that cavities exist between the paper and the glue overflows from the edges of the paper are reduced, the glue utilization rate is improved, and finally, the quality of chemical fiber paper tubes can be effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical fiber paper tube production, and particularly relates to a paper bonding device for chemical fiber paper tube production. Background Art

[0002] In the production process of chemical fiber paper tubes, multiple sheets of paper need to be stacked and compounded with glue, and then rolled into a tube shape. After cutting, chamfering and other processing, chemical fiber paper tubes are obtained. In the existing production of chemical fiber paper tubes, glue is applied between the papers using a glue roller. The glue coating roller directly applies glue, which is easily affected by the viscosity of the colloid. It is difficult to evenly apply the glue on the paper, resulting in uneven distribution of paper glue. In order to avoid empty areas without glue between the papers, it is often necessary to increase the amount of glue based on the theoretical glue dosage. This is prone to the problem of uneven glue distribution, and glue is prone to overflow from the edges of the paper, requiring secondary cleaning. Therefore, it is necessary to improve the existing paper bonding device. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: a paper bonding device for chemical fiber paper tube production, comprising an upper unwinding roller, a lower unwinding roller, an upper glue coating roller, a lower glue coating roller, an upper pressing roller and a lower pressing roller, the upper pressing roller is located above the lower pressing roller, the upper pressing roller is driven by a lower pressing mechanism to press the lower pressing roller, the lower pressing roller is driven to rotate by a driving mechanism, a pressing channel is formed between the upper pressing roller and the lower pressing roller, the upper unwinding roller is wound with an upper paper, the lower surface of the upper paper contacts with the upper glue coating roller and then passes through the pressing channel, the lower unwinding roller is equipped with a lower paper, the upper surface of the lower paper contacts with the lower glue coating roller and then passes through the pressing channel, one side of the upper glue coating roller and one side of the lower glue coating roller are respectively provided with cloth glue rollers, the cloth glue rollers are connected to the upper glue coating roller or The rubber coating roller is fitted with the lower rubber coating roller, and the rubber coating roller includes a roller surface tube and a central axis. The central axis is located inside the roller surface tube and is coaxially arranged with the roller surface tube. A glue cavity is formed between the central axis and the roller surface tube. Sealing cover plates are respectively provided at both ends of the glue cavity. The sealing cover plates are fixedly connected to the roller surface tube and the central axis. A plurality of glue outlet holes are provided on the circumferential surface of the roller surface tube, and the glue outlet holes are connected to the glue cavity. An air bag is sleeved on the central axis. An air intake channel and a glue injection channel are provided inside the central axis. The air intake channel is connected to the air bag, and the glue injection channel is connected to the glue cavity. One end of the central axis is connected to a high-pressure air pipe, and the high-pressure air pipe is connected to the air intake channel through an air slip ring. A control valve is provided on the high-pressure air pipe, and the high-pressure air pipe is connected to the high-pressure gas. The other end of the central axis is connected to a glue injection pipe, and the glue injection pipe is connected to the glue injection channel through a liquid slip ring.

[0004] As a preferred embodiment of the above technical solution, guide rollers are respectively provided between the upper unwinding roller and the upper glue coating roller, and between the lower unwinding roller and the lower glue coating roller.

[0005] As a preferred embodiment of the above technical solution, a plurality of mounting holes are evenly distributed on the circumferential surface of the roller surface tube, rubber columns are fixedly inserted into the mounting holes, and the rubber outlet hole is located in the middle of the rubber column.

[0006] As a preferred embodiment of the above technical solution, the pressing mechanism includes two controllable gas springs located at both ends of the upper pressing roller, and sliders are respectively provided at both ends of the upper pressing roller. The sliders are slidably installed on the vertical slide rails, and the output shafts of the controllable gas springs are connected to the corresponding sliders.

[0007] As a preferred embodiment of the above technical solution, a one-way valve is provided on the glue injection tube.

[0008] The beneficial effects of the utility model are as follows: the paper bonding device for producing chemical fiber paper tubes of the utility model can effectively and evenly apply glue on the paper and bond the paper together, thereby improving the uniformity of glue distribution during the paper bonding process, reducing the problems of voids between the papers and glue overflowing from the edges of the papers, improving the utilization rate of glue, and ultimately effectively ensuring the quality of the chemical fiber paper tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the cloth rubber roller;

[0011] Figure 3 It is a schematic diagram of the structure of the upper pressing roller. DETAILED DESCRIPTION

[0012] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0013] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0014] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] like Figure 1-3 As shown, a paper bonding device for producing chemical fiber paper tubes includes an upper unwinding roller 1, a lower unwinding roller 2, an upper glue roller 3, a lower glue roller 4, an upper pressing roller 5 and a lower pressing roller 6. The upper pressing roller 5 is located above the lower pressing roller 6. The upper pressing roller 5 is driven by a downward pressing mechanism to press the lower pressing roller 6. The lower pressing roller 6 is driven to rotate by a driving mechanism. A pressing channel 7 is formed between the upper pressing roller 5 and the lower pressing roller 6. An upper paper 8 is wound on the upper unwinding roller 1. The lower surface of the upper paper 8 contacts the upper glue roller 3 and passes through the pressing channel 7. The lower unwinding roller 2 is provided with a lower paper 9. The upper surface of the lower paper 9 contacts the lower glue roller 4 and passes through the pressing channel 7. A rubber cloth roller 10 is provided on one side of the upper glue roller 3 and one side of the lower glue roller 4, respectively. The rubber cloth roller 10 is in contact with the upper glue roller 3 or the lower glue roller 4. The rubber cloth roller 10 includes a roller surface tube 11, The central shaft 12 is located inside the roller surface tube 11 and is coaxially arranged with the roller surface tube 11. A glue cavity 14 is formed between the central shaft 12 and the roller surface tube 11. Sealing covers are respectively provided at both ends of the glue cavity 14. The sealing covers are fixedly connected to the roller surface tube 11 and the central shaft 12. A plurality of glue outlet holes 13 are provided on the circumferential surface of the roller surface tube 11. The glue outlet holes 13 are connected to the glue cavity 14. An air bag 15 is sleeved on the central shaft 12. An air intake channel 16 and a glue injection channel 17 are provided inside the central shaft 12. The air intake channel 16 is connected to the air bag 15. The glue injection channel 17 is connected to the glue cavity 14. One end of the central shaft 12 is connected to a high-pressure air pipe. The high-pressure air pipe is connected to the air intake channel 16 through an air slip ring. A control valve is provided on the high-pressure air pipe. The high-pressure air pipe is connected to high-pressure gas. The other end of the central shaft 12 is connected to a glue injection pipe. The glue injection pipe is connected to the glue injection channel 17 through a liquid slip ring. The driving mechanism is a motor.

[0016] Furthermore, guide rollers 18 are provided between the upper unwinding roller 1 and the upper glue coating roller 3, and between the lower unwinding roller 2 and the lower glue coating roller 4. The guide rollers 18 guide the upper paper 8 and the lower paper 9, so that the upper paper 8 and the lower paper 9 form a larger contact area with the upper glue coating roller 3 and the lower glue coating roller 4, respectively, which is conducive to the transfer of glue amount.

[0017] Furthermore, a plurality of mounting holes 19 are evenly distributed on the circumferential surface of the roller surface tube 11, and a rubber column 20 is fixedly inserted in the mounting hole 19, and the glue outlet hole 13 is located in the middle of the rubber column 20. The glue outlet hole 13 is in a closed state when the internal and external pressure difference is zero or below a certain threshold. When the airbag 15 expands, the internal and external pressure difference of the glue outlet hole 13 reaches the threshold, and the glue is discharged from the glue outlet hole 13. Since the threshold required for the glue to be squeezed out of all the glue outlet holes 13 is within a certain range, the glue output of each glue outlet hole 13 can be approximately equal, and will not be affected by gravity, viscosity, etc.

[0018] Furthermore, the pressing mechanism includes two controllable gas springs 21 located at both ends of the upper pressing roller 5, and sliders 22 are respectively provided at both ends of the upper pressing roller 5. The sliders 22 are slidably mounted on the vertical slide rails 23, and the output shafts of the controllable gas springs 21 are connected to the corresponding sliders 22. The pressure between the upper pressing roller 5 and the lower pressing roller 6 is adjustable, thereby effectively controlling the composite force between the upper paper 8 and the lower paper 9.

[0019] Furthermore, a one-way valve is provided on the glue injection tube to prevent the glue in the glue cavity 14 from flowing back into the glue injection tube, thereby ensuring that the glue in the glue cavity 14 can be smoothly squeezed out from the glue outlet hole 13 after the airbag 15 is expanded.

[0020] Paper bonding process of chemical fiber paper tube: two layers of paper to be bonded are unwound from the upper unwinding roller 1 and the lower unwinding roller 2 respectively, the lower surface of the upper paper 8 contacts the upper glue roller 3 and enters the pressing channel 7, the upper surface of the lower paper 9 contacts the lower glue roller 4 and enters the pressing channel 7, the upper pressing roller 5 and the lower pressing roller 6 are used to press the upper paper 8 and the lower paper 9 in the pressing channel 7, so that the upper paper 8 and the lower paper 9 are bonded; by controlling the air pressure of the airbag 15, the expanded airbag 15 is used to squeeze the glue in the glue cavity 14 from the glue outlet 13, and then the glue on the roller surface tube 11 is transferred to the upper glue roller 3 or the lower glue roller 4 in contact with the roller surface tube 11, and then transferred to the lower surface of the upper paper 8 or the upper surface of the lower paper 9; the expansion and contraction of the airbag 15 are performed alternately, and when the airbag 15 contracts, the glue injection channel 17 injects a certain amount of glue into the glue cavity 14.

[0021] Furthermore, the interval between two adjacent expansions of the airbag 15 forms a glue injection cycle, and a glue injection cycle is an integer multiple of the time for the upper lamination roller 5 or the lower lamination roller 6 to rotate once. Preferably, it is 1 times, that is, when the upper lamination roller 5 and the lower lamination roller 6 rotate once, the airbag 15 completes a process of expanding once to squeeze out the glue in the glue cavity 14, and then shrinks, and the glue cavity 14 is re-injected with glue. At this time, the roller surface tube 11, driven by the upper glue coating roller 3 or the lower glue coating roller 4, also rotates once, so that the glue emerging from the glue outlet 13 is evenly transferred to the upper lamination roller 5 or the lower lamination roller 6, and the squeeze effect between the upper lamination roller 5 and the roller surface tube 11 or between the lower lamination roller 6 and the roller surface tube 11 makes the glue evenly distributed on the upper lamination roller 5 or the lower lamination roller 6. Finally, it is transferred to the lower surface of the upper paper 8 or the upper surface of the lower paper 9 through contact.

[0022] It is worth mentioning that the technical features such as the motor and controllable gas spring 21 involved in the utility model patent application should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of the utility model patent. The utility model patent will not be further elaborated.

[0023] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all 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 utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A paper bonding device for producing chemical fiber paper tubes, characterized in that: The paper is rolled up on the upper unwinding roller, and the lower unwinding roller is driven by the lower pressing mechanism to press the lower pressing roller. The lower pressing roller is driven by the driving mechanism to rotate. A pressing channel is formed between the upper pressing roller and the lower pressing roller. The upper unwinding roller is wound with an upper paper, and the lower surface of the upper paper contacts the upper glue roller and passes through the pressing channel. The lower unwinding roller is equipped with a lower paper, and the upper surface of the lower paper contacts the lower glue roller and passes through the pressing channel. One side of the upper glue roller and one side of the lower glue roller are respectively provided with a cloth glue roller, and the cloth glue roller is in contact with the upper glue roller or the lower glue roller. The cloth glue roller includes a roller surface tube, The central shaft is located inside the roller surface tube and is coaxially arranged with the roller surface tube. A glue cavity is formed between the central shaft and the roller surface tube. Sealing cover plates are respectively provided at both ends of the glue cavity. The sealing cover plates are fixedly connected to the roller surface tube and the central shaft. A plurality of glue outlet holes are provided on the circumferential surface of the roller surface tube. The glue outlet holes are connected to the glue cavity. An air bag is sleeved on the central shaft. An air intake channel and a glue injection channel are provided inside the central shaft. The air intake channel is connected to the air bag, and the glue injection channel is connected to the glue cavity. One end of the central shaft is connected to a high-pressure air pipe, which is connected to the air intake channel through an air slip ring. A control valve is provided on the high-pressure air pipe, and the high-pressure air pipe is connected to the high-pressure gas. The other end of the central shaft is connected to a glue injection pipe, which is connected to the glue injection channel through a liquid slip ring.

2. The paper bonding device for producing chemical fiber paper tubes according to claim 1, characterized in that: Guide rollers are respectively arranged between the upper unwinding roller and the upper glue coating roller, and between the lower unwinding roller and the lower glue coating roller.

3. The paper bonding device for producing chemical fiber paper tubes according to claim 1, characterized in that: A plurality of mounting holes are evenly distributed on the circumferential surface of the roller surface tube, rubber columns are fixedly inserted into the mounting holes, and the rubber outlet hole is located in the middle of the rubber column.

4. The paper bonding device for producing chemical fiber paper tubes according to claim 1, characterized in that: The pressing mechanism includes two controllable gas springs located at both ends of the upper pressing roller. Slide blocks are respectively provided at both ends of the upper pressing roller. The slide blocks are slidably installed on the vertical slide rails. The output shafts of the controllable gas springs are connected to the corresponding slide blocks.

5. The paper bonding device for producing chemical fiber paper tubes according to claim 1, characterized in that: The glue injection pipe is provided with a one-way valve.

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