Manufacturing method of colorful impregnated paperboard with good fire resistance

Abstract

The invention provides a manufacturing method of a colorful impregnated paperboard with good fire resistance, and relates to the technical field of impregnated paperboard production and processing.The manufacturing method of the colorful impregnated paperboard with good fire resistance mainly comprises the following steps that S1, a paper tube is loaded, specifically, a fireproof paper film wound into a tube is loaded into a roll, the fireproof paper film is installed on the surface of a winding shaft, and the winding shaft is wound into the paper tube; the fireproof paper film penetrates through the middle of the quantitative paper feeding wheel and is hung downwards; s2, the paperboard is loaded on a machine, specifically, the colorful impregnated paperboard of an arc-shaped bent structure is placed on a paperboard bottom support, the colorful impregnated paperboard is pushed to the middle of a board conveying roller, and arc-shaped pushing is conducted along the bent contour of the colorful impregnated paperboard through the board conveying roller; according to the device, glue is automatically coated, the coating structure is simple, the coating efficiency is high, the coating speed is high, coating is uniform, noise is avoided in the coating process, and roller coating can better guarantee that a thin glue layer is uniformly coated compared with spraying, so that the use amount of the glue is reduced, and the attaching compactness of a fireproof paper film is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of production and processing of impregnated cardboard, and specifically to a method for manufacturing a colorful impregnated cardboard with good fire resistance. Background Art

[0002] The colorful impregnated cardboard is a composite material with the original paper as the base material. After being impregnated with resin (such as phenolic resin, urea-formaldehyde resin) or coated, the colorful effect is achieved through processes such as printing and laminating on the surface. Its core characteristics include: High strength and water resistance: The resin penetration enhances the fiber bonding force, the compressive strength is increased by 30%-50%, and the water resistance meets the GB / T 13024-2015 standard, suitable for humid environments. Excellent barrier properties: It isolates water vapor (water vapor transmission rate ≤ 2.5 g / (m2·24h)), is resistant to chemical corrosion (resistant to acids and alkalis with pH values of 3-11), and is suitable for chemical product packaging. Lightweight and environmental protection: The weight per unit area is 15%-20% lower than that of corrugated paper, and the recyclability rate is over 90%, meeting the REACH regulations. Outstanding decorative properties: High-precision patterns can be presented through UV printing (resolution ≥ 1200 dpi), and the color saturation is increased by 40%, meeting the requirements of high-end gift boxes.

[0003] Currently, with the development of the preparation technology of colorful impregnated cardboard to meet the use requirements of special structures and special occasions, a part of the colorful impregnated cardboard is made into a curved arc-shaped cardboard, and the surface of this type needs to have fire resistance. Therefore, in the industry, a fireproof film is often wrapped on the surface of the colorful impregnated cardboard to improve its fire resistance. From the perspective of process difficulty, the traditional colorful impregnated cardboard is a straight panel, and the loading and unloading of the colorful impregnated cardboard are convenient and simple, and can be completed by directly lifting with two workers. Moreover, the surface lamination of the straight-panel colorful impregnated cardboard is simple and easy to laminate smoothly. However, for the curved surface arc-shaped colorful impregnated cardboard, it is easy to make the lamination uneven during surface lamination, and the lamination process is complex. Also, because the colorful impregnated cardboard is a curved surface arc-shaped structure, it is difficult for workers to control the angle during the loading process, and it is easy to damage the arc contour of the colorful impregnated cardboard during the loading process. Therefore, a method for manufacturing a colorful impregnated cardboard with good fire resistance is needed. Summary of the Invention

[0004] Aiming at the problems in the prior art, the purpose of the present invention is to provide a method for manufacturing a colorful impregnated cardboard with good fire resistance, and to solve the problems described in the above background technology: traditional colorful impregnated cardboard is a straight panel, and the loading and unloading of the colorful impregnated cardboard is convenient and simple, which can be completed by directly lifting it with two workers. Moreover, the surface of the straight-panel colorful impregnated cardboard is easy to be laminated, and it is easy to laminate it flat. However, for the curved surface arc-shaped structure of the colorful impregnated cardboard, it is easy to make the lamination uneven during the surface lamination process, and the lamination process is complex. In addition, due to the curved surface arc-shaped structure of the colorful impregnated cardboard, it is difficult for workers to control the angle during the loading process, and the arc contour of the colorful impregnated cardboard is easily damaged during the loading process.

[0005] The technical problems to be solved by the present invention are achieved by the following technical solutions: A method for manufacturing a colorful impregnated cardboard with good fire resistance, and this method mainly includes the following steps:

[0006] S1. Loading the paper tube onto the machine: Load the fireproof paper film wound into a tube onto the machine and install the fireproof paper film on the surface of the winding shaft. The fireproof paper film passes through the middle of the quantitative paper feeding wheel and hangs downwards.

[0007] S2. Loading the cardboard onto the machine: Place the colorful impregnated cardboard with an arc-shaped bending structure on the cardboard bottom tray, and push it through the cardboard bottom tray in a swinging manner along the center of the colorful impregnated cardboard. The colorful impregnated cardboard is pushed into the middle of the plate feeding rollers, and the plate feeding rollers push it in an arc along the bending contour of the colorful impregnated cardboard.

[0008] S3. Coating glue on the cardboard: During the process of pushing the colorful impregnated cardboard to move in step S2, the upper and lower coating wheels respectively roll and coat glue on the colorful impregnated cardboard from the rightmost side of the colorful impregnated cardboard, through the upper and lower surfaces of the colorful impregnated cardboard to the leftmost side of the colorful impregnated cardboard, so that the four surfaces of the colorful impregnated cardboard are coated with glue.

[0009] S4. Attaching the fireproof paper film: Continue to push the colorful impregnated cardboard in step S3. The rightmost side of the colorful impregnated cardboard contacts the fireproof paper film hanging downwards in step S1, and the fireproof paper film is tightly pressed along the surface contour of the colorful impregnated cardboard through the upper and lower pressing components arranged, so that the fireproof paper film is smoothly wrapped on the surface of the colorful impregnated cardboard.

[0010] S5. Cutting the paper film: During the process of tightly pressing in step S4 by the pressing components, the excess fireproof paper film on the left surface of the colorful impregnated cardboard will be cut off.

[0011] S6. Consolidating and compressing: Further compress the fireproof paper film wrapped on the surface of the colorful impregnated cardboard in step S5, and roll several compressing rollers from the upper and lower surfaces of the colorful impregnated cardboard, so that the fireproof paper film adheres more tightly and firmly to the surface of the colorful impregnated cardboard.

[0012] The manufacturing method of a colorful impregnated cardboard with good fire resistance described above is mainly completed in cooperation with a colorful impregnated cardboard manufacturing device. The colorful impregnated cardboard manufacturing device includes a fixed base, the fixed base is fixed on the ground, a frame standing upright on the top surface of the fixed base is fixed at the top end of the fixed base, the frame is arranged in a semi-circular plate structure, a gear is rotatably connected in the middle of the frame, a linear guide rail is fixed on the surface of the frame, a sliding rack is slidably connected to the surface of the guide rail, the surface of the sliding rack is meshed and connected with the gear, an electric push rod is arranged at one end of the sliding rack, a pushing swing arm is arranged on the surface of the gear, a cardboard bottom support is arranged at the top end of the pushing swing arm, and an impregnated cardboard is placed on the surface of the cardboard bottom support;

[0013] A plurality of groups of plate conveying rollers are rotatably connected to the surface of the frame, and the plurality of groups of plate conveying rollers are arranged at equal intervals in an arc on the surface of the frame. Two coating assemblies are arranged at the middle position at the top end of the plate conveying rollers, and the two coating assemblies are respectively arranged on the upper and lower sides of the plate conveying rollers;

[0014] A winding shaft is fixedly installed at the top end of the frame, a winding shaft is rotatably connected to the top end of the winding shaft, a fireproof paper film is wound on the surface of the winding shaft, a quantitative paper feeding wheel is arranged below the winding shaft, the fireproof paper film wound on the surface of the winding shaft passes through the middle of the quantitative paper feeding wheel and hangs downwards, and two pressing assemblies are arranged on the right side of the fireproof paper film hanging downwards. The two pressing assemblies are respectively arranged on the upper and lower sides of the sliding track of the impregnated cardboard, and a plurality of compaction rollers in a round roller structure are arranged along the upper and lower sides of the sliding track of the impregnated cardboard on the right side of the pressing assembly.

[0015] As a preferred technical solution of the present invention, the compaction roller includes a compaction roller casing arranged on the outer wall of the compaction roller. There are two compaction roller casings in total, and the two compaction roller casings are respectively arranged on the upper and lower sides of the sliding track of the impregnated cardboard, and each compaction roller casing is in an arc structure. A plurality of compaction rollers are respectively rotatably connected to the surface of the compaction roller casing, and a self-rotating power roller is also rotatably connected to the surface of each compaction roller casing.

[0016] As a preferred technical solution of the present invention, each coating assembly includes a bracket base fixed on the surface of the frame, a rubber wheel bracket is rotatably connected to the surface of the bracket base, the rubber wheel bracket is arranged in an arc-shaped bent rod structure, a coating wheel is rotatably connected to the top end of the rubber wheel bracket, a tension spring base is fixed on the surface of the bracket base, a tension spring is fixed on the surface of the tension spring base, and the other end of the tension spring is fixedly connected to the middle of the rubber wheel bracket.

[0017] As a preferred technical solution of the present invention, each of the glue - applying assemblies further includes a glue storage box fixed to the surface of the frame. Glue liquid is stored inside the glue storage box. A glue pumping pump is installed inside the glue storage box. The glue pumping pump is connected to a glue conveying pipe. The glue conveying pipe extends outside the glue storage box. The glue supply box is fixed to the surface of the glue wheel bracket. A glue spraying port is formed inside the glue supply box. The top end of the glue conveying pipe extending outside the glue storage box is connected to the glue spraying port inside the glue supply box. The glue spraying port is filled with sponge, and the sponge is in close contact with the surface of the glue - applying wheel.

[0018] As a preferred technical solution of the present invention, each of the pushing and pressing assemblies includes a floating pushing and pressing block elastically and floatingly connected to the surface of the frame, and a shaft - supporting plate fixed around the floating pushing and pressing block. The floating pushing and pressing block is set as a long - strip columnar trapezoidal structure. An in - film guiding inclined surface with an inclined structure is formed on the surface of the floating pushing and pressing block. A film - withdrawing guiding inclined surface is formed on another surface of the floating pushing and pressing block. The top surface of the floating pushing and pressing block is a smooth plane. Two telescopic shafts are fixed on the surface of the floating pushing and pressing block. Two through - holes are formed on the surface of the shaft - supporting plate. Each of the two telescopic shafts is slidably connected to each of the through - holes on the surface of the shaft - supporting plate. A pressing spring is installed on the surface of each telescopic shaft. Both ends of the pressing spring are respectively fixed to the surface of the floating pushing and pressing block and the surface of the shaft - supporting plate.

[0019] As a preferred technical solution of the present invention, each floating pushing and pressing block further includes a bayonet formed on the surface of the film - withdrawing guiding inclined surface, and an inverted tooth extends from the middle of the bayonet.

[0020] As a preferred technical solution of the present invention, a pulling assembly is arranged at the bottom of the downward - hanging fire - proof paper film. The pulling assembly includes a fixed support fixed to the surface of the frame. Two damping wheel sliding brackets are fixed to the surface of the fixed support. Two sliding grooves are formed on the surface of each damping wheel sliding bracket. A slider is slidably connected to each sliding groove. Two damping wheels are rotatably connected to the middle of the two damping wheel sliding brackets. Each damping wheel is provided with a rotating shaft at both ends. The rotating shafts at both ends of each damping wheel are rotatably connected to the middle of the slider. A tensioning box is fixedly installed in the middle of the two sliding grooves on the surface of the damping wheel sliding bracket. Pulling ropes are symmetrically arranged on the left and right sides of the surface of the tensioning box. Each pulling rope on one side is connected to the surface of the slider in the sliding groove on this side. A second tension spring is arranged on the other surface of the slider in the sliding groove on this side, and the second tension spring is connected to the surface of the sliding groove.

[0021] As a preferred technical solution of the present invention, a rope - winding chamber is arranged inside the tensioning box. A rope - winding wheel is rotatably connected to the surface of the rope - winding chamber. The top ends of the pulling ropes extending into the rope - winding chamber on both sides of the tensioning box are respectively fixed to the surface of the rope - winding wheel.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] 1. In the device for manufacturing the colorful impregnated cardboard of the present invention, the fireproof paper film wound into a cylinder is loaded onto the machine and wound onto the surface of the winding shaft. The fireproof paper film passes through the middle of the quantitative paper feeding wheel and hangs downwards to an appropriate length. By placing the colorful impregnated cardboard with an arc-shaped bending structure on the cardboard bottom support, and the cardboard bottom support makes a swinging push along the center of the colorful impregnated cardboard. When the colorful impregnated cardboard enters the plate conveying roller, with the push of the cardboard bottom support at the bottom, the colorful impregnated cardboard can be smoothly pushed in. The colorful impregnated cardboard is pushed into the middle of the plate conveying roller, and the plate conveying roller makes an arc-shaped push along the bending contour of the colorful impregnated cardboard. During the conveying process, the colorful impregnated cardboard is not easily deformed due to uneven force. During the process of pushing the colorful impregnated cardboard to move, the coating wheels on the upper and lower sides respectively roll and coat glue from the rightmost side of the colorful impregnated cardboard, through the upper and lower surfaces of the colorful impregnated cardboard to the leftmost side of the colorful impregnated cardboard, so that the four surfaces of the colorful impregnated cardboard are coated with glue. The glue coating is automated, the coating structure is simple, the coating efficiency is high, the coating speed is fast, the coating is uniform and there is no noise during the coating process. Roller coating can better ensure uniform coating of a thinner glue layer thickness compared to spraying, which is beneficial to reducing the amount of glue used and improving the tightness of the attachment of the fireproof paper film.

[0024] 2. The rightmost side of the colorful impregnated cardboard of the present invention contacts the downward-hanging fireproof paper film, and the fireproof paper film is tightly pressed along the surface contour of the colorful impregnated cardboard through the push-pressing components arranged up and down, so that the fireproof paper film is flatly wrapped on the surface of the colorful impregnated cardboard; at the same time, during the process of tight pressing, the push-pressing components can also cut off the redundant fireproof paper film on the left surface of the colorful impregnated cardboard, so that there is no redundant edge material on the edge film of the fireproof paper film wrapped on the surface of the colorful impregnated cardboard. The cutting efficiency is high, all steps are completed automatically, and several compaction rollers roll and press from the upper and lower surfaces of the colorful impregnated cardboard, so that the fireproof paper film is more tightly and firmly attached to the surface of the colorful impregnated cardboard.

[0025] 3. Among them, each coating component of the present invention is rotatably connected to a glue wheel support through the surface of the support base. The glue wheel support is set as an arc-shaped bent rod structure, which is convenient for the coating wheels on the upper and lower sides to extend into the left and right end faces of the colorful impregnated cardboard to roll glue on the left and right end faces of the colorful impregnated cardboard. At the same time, during the process of rolling glue, the sponge is in close contact with the surface of the coating wheel. The sponge evenly adsorbs the glue liquid from the glue spraying port, and the coating wheel rolls and contacts from the surface of the sponge, so that a very thin layer of glue liquid can be evenly coated on the left and right end faces of the colorful impregnated cardboard, providing better adhesion for wrapping the fireproof paper film on the left and right sides of the colorful impregnated cardboard in the later stage, and improving the tightness of wrapping the fireproof paper film on the left and right sides of the colorful impregnated cardboard.

[0026] IV. In the present invention, each pressing component includes a floating pressing block elastically floatingly connected to the surface of the frame. The floating pressing block can perform elastic adaptive yielding and floating, so as to be able to adaptively press tightly against the surfaces of colorful impregnated cardboard with different sizes and thicknesses, improving the pressing effect. An inlet film guiding inclined surface with an inclined structure is provided on the surface of the floating pressing block, which makes it easier for the colorful impregnated cardboard to be squeezed into the middle position between the two floating pressing blocks. When continuously pushing the right side of the colorful impregnated cardboard into the middle position between the two floating pressing blocks distributed up and down, the glue on the right side surface of the colorful impregnated cardboard adheres to the fireproof paper film, and is continuously pushed to the right through the right side of the colorful impregnated cardboard. The right side surface and the right side edges of the colorful impregnated cardboard slide into the middle position between the two floating pressing blocks along the inlet film guiding inclined surface with an inclined structure. At the same time, since the surface of the floating pressing block is a straight plane, the surface of the floating pressing block presses on the surface of the colorful impregnated cardboard and moves along the arc-shaped and curved surface of the colorful impregnated cardboard, so that the fireproof paper film on the surface of the colorful impregnated cardboard can be pushed flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present drawings are merely simplified diagrams or schematic diagrams for illustrating the structural features, and do not represent the completely real structural features as well as the actual dimensions and tolerance fits. They are only used to facilitate the understanding of the technical solutions of the present application by those skilled in the art. The present invention will be further described below with reference to the drawings and embodiments.

[0028] Figure 1 It is a flowchart of the steps of the method for manufacturing the colorful impregnated cardboard of the present invention;

[0029] Figure 2 It is a front view structural schematic diagram of the device for manufacturing the colorful impregnated cardboard of the present invention;

[0030] Figure 3 It is a left view structural schematic diagram of the device for manufacturing the colorful impregnated cardboard of the present invention;

[0031] Figure 4 It is a structural schematic diagram of the fireproof paper film wrapping the right side of the impregnated cardboard of the present invention;

[0032] Figure 5 It is for the appendix of the specification of the present invention Figure 4 The enlarged structural schematic diagram at A;

[0033] Figure 6 It is a front view structural schematic diagram of the pressing component of the present invention;

[0034] Figure 7 It is a front view sectional structural schematic diagram of the pulling component of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the impregnated cardboard of the present invention;

[0036] Figure 9Schematic diagram of the structure for winding the pulling rope on the winding wheel inside the rope storage chamber of the present invention;

[0037] In the figure: frame 1, fixed base 2, electric push rod 3, gear 4, sliding rack 5, guide rail 6, pushing swing arm 7, cardboard bottom support 8, impregnated cardboard 9, plate conveying roller 10, glue coating assembly 11, glue storage box 110, glue conveying pipe 111, glue liquid 112, glue pumping pump 113, glue supply box 114, glue spraying port 115, sponge 116, glue coating wheel 117, tension spring 118, tension spring base 119, support base 120, glue wheel support 121, winding shaft 12, fireproof paper film 13, quantitative paper feeding wheel 14, pushing and pressing assembly 15, floating pushing block 151, film feeding guiding inclined surface 152, film retracting guiding inclined surface 153, bayonet 154, reverse teeth 155, pressing spring 156, telescopic shaft 157, shaft support plate 158, compaction roller 16, compaction roller housing 17, power roller 18, pulling assembly 19, fixed support 191, damping wheel sliding support 192, tension box 193, damping wheel 194, sliding groove 195, pulling rope 196, slider 197, rotating shaft 198, second tension spring 199, rope storage chamber 1910, winding wheel 1911, belt pulley 20, conveyor belt 21. Detailed implementation manners

[0038] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below with reference to specific drawings. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0039] Embodiment 1

[0040] Please refer to Figure 1 , which is a schematic diagram of the overall structure of a manufacturing method of a colorful impregnated cardboard with good fire resistance,

[0041] A manufacturing method of a colorful impregnated cardboard with good fire resistance, the manufacturing method of the colorful impregnated cardboard with good fire resistance mainly includes the following steps:

[0042] S1. Loading the paper tube onto the machine: Loading the fireproof paper film 13 wound into a tube onto the machine for winding, installing the fireproof paper film 13 on the surface of the winding shaft 12, and passing the fireproof paper film 13 through the middle of the quantitative paper feeding wheel 14 and hanging downward;

[0043] S2. Loading the cardboard onto the machine: Placing the colorful impregnated cardboard with an arc-shaped bending structure on the cardboard bottom support 8, and making a swinging push along the center of the colorful impregnated cardboard through the cardboard bottom support 8, pushing the colorful impregnated cardboard into the middle of the plate conveying roller 10, and making an arc-shaped push along the bending contour of the colorful impregnated cardboard through the plate conveying roller 10;

[0044] S3. Glue Coating on the Cardboard: During the process of pushing the multi-color impregnated cardboard for movement in step S2, the glue coating wheels 117 on the upper and lower sides respectively perform rolling glue coating from the rightmost side of the multi-color impregnated cardboard, through the upper and lower surfaces of the multi-color impregnated cardboard to the leftmost side of the multi-color impregnated cardboard, so that the four surfaces of the multi-color impregnated cardboard are coated with glue;

[0045] S4. Laminating the Fireproof Paper Film: In step S3, continue to push the multi-color impregnated cardboard. The rightmost side of the multi-color impregnated cardboard contacts the fireproof paper film 13 hanging downwards in step S1, and the fireproof paper film 13 is tightly pressed along the surface contour of the multi-color impregnated cardboard through the pushing and pressing components 15 arranged up and down, so that the fireproof paper film is smoothly wrapped on the surface of the multi-color impregnated cardboard;

[0046] S5. Cutting the Paper Film: During the process of the pushing and pressing component 15 in step S4 tightly pressing, the redundant fireproof paper film on the left surface of the multi-color impregnated cardboard will be cut off;

[0047] S6. Consolidating and Compacting: Further compact the fireproof paper film wrapped on the surface of the multi-color impregnated cardboard in step S5. Roll several compaction rollers 16 from the upper and lower surfaces of the multi-color impregnated cardboard, so that the fireproof paper film adheres more tightly and firmly to the surface of the multi-color impregnated cardboard.

[0048] Specifically, in this embodiment, the manufacturing device for the multi-color impregnated cardboard 9 of the present invention winds the fireproof paper film 13 wound into a cylinder onto the machine and installs it on the surface of the winding shaft 12. The fireproof paper film 13 passes through the middle of the quantitative paper feeding wheel 14 and hangs downwards to an appropriate length. By placing the multi-color impregnated cardboard 9 with an arc-shaped bending structure on the cardboard bottom tray 8, the cardboard bottom tray 8 performs swinging pushing along the center of the multi-color impregnated cardboard 9. In the initial state, it may be necessary to manually hold it and simply support it. However, when the multi-color impregnated cardboard 9 enters the plate conveying roller 10, with the cooperation of the cardboard bottom tray 8 at the bottom for pushing, the multi-color impregnated cardboard 9 can be smoothly pushed in. The multi-color impregnated cardboard 9 is pushed into the middle of the plate conveying roller 10, and the plate conveying roller 10 performs arc-shaped pushing along the bending contour of the multi-color impregnated cardboard 9. During the conveying process of the multi-color impregnated cardboard 9, it is not easy to be deformed due to uneven force. During the process of pushing the multi-color impregnated cardboard 9 for movement, the glue coating wheels 117 on the upper and lower sides respectively perform rolling glue coating from the rightmost side of the multi-color impregnated cardboard 9, through the upper and lower surfaces of the multi-color impregnated cardboard 9 to the leftmost side of the multi-color impregnated cardboard 9, so that the four surfaces of the multi-color impregnated cardboard 9 are coated with glue. The glue is automatically coated, the coating structure is simple, the coating efficiency is high, the coating speed is fast, the coating is uniform and there is no noise during the coating process. Roller coating can better ensure uniform coating of a thinner glue layer thickness than spraying, which is beneficial to reducing the glue consumption and improving the tightness of the adhesion of the fireproof paper film 13.

[0049] Specifically, in this embodiment, the rightmost side of the multi-color impregnated cardboard 9 of the present invention contacts the downwardly hanging fireproof paper film 13, and the fireproof paper film 13 is tightly pressed along the surface contour of the multi-color impregnated cardboard 9 by the push-pressing assembly 15 arranged up and down, so that the fireproof paper film 13 is smoothly wrapped on the surface of the multi-color impregnated cardboard 9; at the same time, during the tight pressing process, the push-pressing assembly 15 can also cut off the redundant fireproof paper film 13 on the left surface of the multi-color impregnated cardboard 9, so that there is no redundant edge material on the edge film of the fireproof paper film 13 wrapped on the surface of the multi-color impregnated cardboard 9. The cutting efficiency is high, and all steps are completed automatically. Then, several compaction rollers 16 roll from the upper and lower surfaces of the multi-color impregnated cardboard 9, and the fireproof paper film 13 is more tightly and firmly attached to the surface of the multi-color impregnated cardboard 9.

[0050] Embodiment 2

[0051] Please refer to Figures 2 - 9 , this embodiment has the same parts as the above-mentioned Embodiment 1, and the same parts will not be elaborated in this embodiment. The specific differences are as follows:

[0052] The manufacturing method of a multi-color impregnated cardboard with good fire resistance disclosed in the above embodiment is specifically completed by cooperating with a multi-color impregnated cardboard manufacturing device. The multi-color impregnated cardboard manufacturing device includes a fixed base 2, the fixed base 2 is fixed on the ground, and a frame 1 standing upright on the top surface of the fixed base 2 is fixed at the top of the fixed base 2. The frame 1 is set as a semi-circular arc plate structure. A gear 4 is rotatably connected in the middle of the frame 1. A linear guide rail 6 is fixed on the surface of the frame 1. A sliding rack 5 is slidably connected to the surface of the guide rail 6. The surface of the sliding rack 5 is meshed with the gear 4. One end of the sliding rack 5 is provided with an electric push rod 3. When the electric push rod 3 drives the sliding rack 5 to reciprocate along the surface of the guide rail 6, the gear 4 is driven to rotate, thereby pushing the push swing arm 7 to reciprocate, so that the cardboard bottom bracket 8 pushes the multi-color impregnated cardboard 9 to swing along the center of the multi-color impregnated cardboard 9 and push it to the middle of the upper conveying plate roller 10. A push swing arm 7 is arranged on the surface of the gear 4. A cardboard bottom bracket 8 is arranged at the top of the push swing arm 7. The multi-color impregnated cardboard 9 is placed on the surface of the cardboard bottom bracket 8. The impregnated cardboard 9 is a curved cardboard with an arc structure.

[0053] A plurality of groups of conveying plate rollers 10 are rotatably connected to the surface of the frame 1. The plurality of groups of conveying plate rollers 10 are arranged at equal intervals in an arc on the surface of the frame 1. Two coating assemblies 11 are arranged at the middle position of the top of the conveying plate rollers 10. The two coating assemblies 11 are respectively arranged on the upper and lower sides of the conveying plate rollers 10;

[0054] At the top of the frame 1, a winding shaft 12 is fixedly installed. The top of the winding shaft 12 is rotatably connected to the winding shaft 12. The surface of the winding shaft 12 is wound with a fireproof paper film 13. Below the winding shaft 12, a quantitative paper feeding wheel 14 is provided. The fireproof paper film 13 wound on the surface of the winding shaft 12 passes through the middle of the quantitative paper feeding wheel 14 and hangs downwards. On the right side of the hanging fireproof paper film 13, there are two pressing components 15. The two pressing components 15 are respectively arranged on the upper and lower sides of the sliding track of the impregnated cardboard 9. On the right side of the pressing component 15, along the upper and lower sides of the sliding track of the impregnated cardboard 9, there are several compaction rollers 16 in the shape of a round roller structure to further roll and compact the fireproof paper film 13 on the surface of the colorful impregnated cardboard 9.

[0055] The plate conveying roller 10 is rotatably connected to the surface of the frame 1. At the top of the plate conveying roller 10 rotatably connected to the surface of the frame 1, a belt pulley 20 is installed. Between two adjacent belt pulleys 20 above the impregnated cardboard 9, they are driven to rotate through a conveyor belt 21, so as to realize the synchronous rotation of the plate conveying rollers 10 on the upper and lower sides of the impregnated cardboard 9. In this embodiment, one of the belt pulleys 20 is driven to rotate by an independent servo motor.

[0056] Specifically, in this embodiment, the device for manufacturing the colorful impregnated cardboard 9 of the present invention winds the wound fireproof paper film 13 onto the machine and installs it on the surface of the winding shaft 12. The fireproof paper film 13 passes through the middle of the quantitative paper feeding wheel 14 and hangs down to an appropriate length. By placing the colorful impregnated cardboard 9 with an arc-shaped bending structure on the cardboard bottom tray 8, and the cardboard bottom tray 8 makes a swinging push along the center of the colorful impregnated cardboard 9. In the initial state, it may be necessary to manually hold it for a simple support. However, when the colorful impregnated cardboard 9 enters the plate conveying roller 10, with the push of the cardboard bottom tray 8 at the bottom, the colorful impregnated cardboard 9 can be smoothly pushed in. The colorful impregnated cardboard 9 is pushed into the middle of the plate conveying roller 10, and the plate conveying roller 10 makes an arc-shaped push along the bending contour of the colorful impregnated cardboard 9. During the conveying process of the colorful impregnated cardboard 9, it is not easy to be deformed due to uneven force. During the process of pushing the colorful impregnated cardboard 9 to move, the coating wheels 117 on the upper and lower sides respectively roll and coat glue from the rightmost side of the colorful impregnated cardboard 9, through the upper and lower surfaces of the colorful impregnated cardboard 9 to the leftmost side of the colorful impregnated cardboard 9, so that the four surfaces of the colorful impregnated cardboard 9 are coated with glue. The glue is automatically coated, the coating structure is simple, the coating efficiency is high, the coating speed is fast, the coating is uniform and there is no noise during the coating process. Roller coating can better ensure uniform coating of a thinner glue layer thickness than spraying, which is beneficial to reducing the amount of glue used and improving the adhesion tightness of the fireproof paper film 13.

[0057] The compaction roller 16 includes a compaction roller housing 17 disposed on the outer wall of the compaction roller 16. There are two compaction roller housings 17 in total, and the two compaction roller housings 17 are respectively disposed on the upper and lower sides of the sliding track of the impregnated cardboard 9. Each compaction roller housing 17 is an arc structure. A number of compaction rollers 16 are respectively rotatably connected to the surface of the compaction roller housing 17. A self-rotating power roller 18 is also rotatably connected to the surface of each compaction roller housing 17. Driven by the spaced power rollers 18 as power, the colorful impregnated cardboard 9 attached with the fireproof paper film 13 is pushed to roll, and the fireproof paper film 13 on the surface of the colorful impregnated cardboard 9 is further rolled and compacted by a number of compaction rollers 16 with a round roller structure, so as to improve the tightness of the fireproof paper film 13 attached to the surface of the colorful impregnated cardboard 9.

[0058] Each coating assembly 11 includes a support base 120 fixed to the surface of the frame 1. A glue wheel support 121 is rotatably connected to the surface of the support base 120. The glue wheel support 121 is arranged as an arc-shaped bent rod structure. A coating wheel 117 is rotatably connected to the top end of the glue wheel support 121. A tension spring base 119 is fixed to the surface of the support base 120. A tension spring 118 is fixed to the surface of the tension spring base 119. The other end of the tension spring 118 is fixedly connected to the middle of the glue wheel support 121. The tension spring 118 pulls the coating wheel 117 to closely adhere to the surface of the impregnated cardboard 9 and apply glue.

[0059] Each coating assembly 11 further includes a glue storage box 110 fixed to the surface of the frame 1. Glue liquid 112 is stored inside the glue storage box 110. A glue pumping pump 113 is installed inside the glue storage box 110. The glue pumping pump 113 is connected with a glue delivery pipe 111. The glue delivery pipe 111 extends outside the glue storage box 110. A glue supply box 114 is fixed to the surface of the glue wheel support 121. A glue spraying port 115 is opened inside the glue supply box 114. The top end of the glue delivery pipe 111 extending outside the glue storage box 110 is connected to the glue spraying port 115 inside the glue supply box 114. A sponge 116 is filled inside the glue spraying port 115. The sponge 116 is in close contact with the surface of the coating wheel 117.

[0060] Specifically, in this embodiment, each glue - applying component 11 of the present invention is rotationally connected to a glue - wheel bracket through the surface of a bracket base. The glue - wheel bracket is arranged in an arc - shaped bent - rod structure, which facilitates the upper and lower glue - applying wheels 117 to extend into the left and right end faces of the colorful impregnated cardboard 9, so as to roll - apply glue to the left and right end faces of the colorful impregnated cardboard 9. At the same time, during the process of rolling - applying glue, the sponge 116 is in surface - fitting contact with the surface of the glue - applying wheel 117. The sponge 116 uniformly adsorbs the glue liquid 112 at the glue - spraying port 115, and the glue - applying wheel 117 rolls and contacts the surface of the sponge 116, so as to uniformly coat a very thin layer of glue liquid 112 on the left and right end faces of the colorful impregnated cardboard 9, providing better adhesiveness for wrapping the fire - proof paper film 13 on the left and right end faces of the colorful impregnated cardboard 9 in the later stage, and improving the tightness of wrapping the fire - proof paper film 13 on the left and right sides of the colorful impregnated cardboard 9.

[0061] Each pressing component 15 includes a floating pressing block 151 elastically and floatingly connected to the surface of the frame 1, and a shaft - supporting plate 158 fixed around the floating pressing block 151. The floating pressing block 151 is arranged in a long - strip - shaped trapezoidal structure. An in - film guiding inclined surface 152 with an inclined structure is formed on the surface of the floating pressing block 151, and a film - retreating guiding inclined surface 153 is formed on the other surface of the floating pressing block 151. The top surface of the floating pressing block 151 is a smooth plane. Two telescopic shafts 157 are fixed on the surface of the floating pressing block 151. Two through - holes are formed on the surface of the shaft - supporting plate 158, and the two telescopic shafts 157 are slidably connected to each through - hole on the surface of the shaft - supporting plate 158. A pressing spring 156 is installed on the surface of each telescopic shaft 157, and both ends of the pressing spring 156 are respectively fixed to the surface of the floating pressing block 151 and the surface of the shaft - supporting plate 158.

[0062] Each floating pressing block 151 further includes a bayonet 154 formed on the surface of the film - retreating guiding inclined surface 153, and an inverted tooth 155 extends from the middle of the bayonet 154.

[0063] Specifically, in this embodiment, the present invention includes a floating pressing block 151 elastically floatingly connected to the surface of the frame 1 in each pressing assembly 15. The floating pressing block 151 can perform elastic adaptive yielding and floating, so as to be adaptively pressed against the surface of the colorful impregnated cardboard 9 with different sizes and thicknesses, improving the pressing effect. An in-film guiding inclined surface 152 with an inclined structure is provided on the surface of the floating pressing block 151, which makes it easier for the colorful impregnated cardboard 9 to be squeezed into the middle position between the two floating pressing blocks 151. When the right side of the colorful impregnated cardboard 9 continues to be pushed into the middle position between the two floating pressing blocks 151 distributed up and down, the glue on the right side surface of the colorful impregnated cardboard 9 adheres to the fireproof paper film 13, and the right side of the colorful impregnated cardboard 9 is continuously pushed to the right. The right side surface and the right edge of the colorful impregnated cardboard 9 slide into the middle position between the two floating pressing blocks 151 along the in-film guiding inclined surface 152 with an inclined structure. At the same time, since the surface of the floating pressing block 151 is a straight plane, the surface of the floating pressing block 151 presses on the surface of the colorful impregnated cardboard 9 and is pushed along the arcuately curved surface of the colorful impregnated cardboard 9, so that the fireproof paper film 13 on the surface of the colorful impregnated cardboard 9 can be pushed flat.

[0064] Specifically, in this embodiment, during the pushing process of the floating pressing block 151, the fireproof paper film 13 passing through the middle of the quantitative paper feeding wheel 14 and hanging downwards is pulled by the pulling assembly 19 below the floating pressing block 151, so that a downward straightening effect is generated during the process of the fireproof paper film 13 being pushed on the surface of the colorful impregnated cardboard 9, which is beneficial for the floating pressing block 151 to press the fireproof paper film 13 evenly and flatly on the arcuately curved surface of the colorful impregnated cardboard 9.

[0065] A pulling assembly 19 is provided at the bottom of the fireproof paper film 13 hanging downwards. The pulling assembly 19 includes a fixed support 191 fixed to the surface of the frame 1. Two damping wheel sliding brackets 192 are fixed to the surface of the fixed support 191. Two sliding grooves 195 are provided on the surface of each damping wheel sliding bracket 192. A slider 197 is slidably connected in each sliding groove 195. Two damping wheels 194 are rotatably connected to the middle of the two damping wheel sliding brackets 192. Each end of each damping wheel 194 is provided with a rotating shaft 198. The rotating shafts 198 at both ends of each damping wheel 194 are rotatably connected to the middle of the slider 197. A tensioning box 193 is fixedly installed in the middle of the two sliding grooves 195 on the surface of the damping wheel sliding bracket 192. Pulling ropes 196 are symmetrically arranged on the left and right sides of the surface of the tensioning box 193. Each pulling rope 196 on one side is connected to the surface of the slider 197 in the sliding groove 195 on that side. A second tension spring 199 is provided on the other surface of the slider 197 in the sliding groove 195 on that side, and the second tension spring 199 is connected to the surface of the sliding groove 195.

[0066] Inside the tension box 193, there is a rope storage chamber 1910. The surface of the rope storage chamber 1910 is rotatably connected with a rope winding wheel 1911. The top ends of the pull ropes 196 extending into the rope storage chamber 1910 on both sides of the tension box 193 are respectively fixed to the surface of the rope winding wheel 1911. In this embodiment, the rope winding wheel 1911 is driven to rotate by an independent servo motor, or a worm and worm gear drive commonly used in the art can be adopted to achieve a power connection with a self-locking function. Specifically, the driving method of the rope winding wheel 1911 is not unique. Any driving element in the prior art that can achieve the technical effects described in this application can be used as a replacement for this application.

[0067] Specifically, in this embodiment, after the pushing and pressing are completed, the other surface of the floating push block 151 is provided with a film removal guiding inclined surface 153. The film removal guiding inclined surface 153 gradually slides and moves downward along the left side of the surface of the colorful impregnated cardboard 9. At this time, the redundant fireproof paper film 13 on the left side of the colorful impregnated cardboard 9 is cut by the bayonet 154 and the reverse teeth 155. There is no need to manually cut the left side of the colorful impregnated cardboard 9 later. Only the left side of the colorful impregnated cardboard 9 needs to be edge-sealed later. The production efficiency is high, and the cumbersome steps of cutting the corners later are omitted.

[0068] Specifically, in this embodiment, the pulling assembly 19 of the present invention clamps and rolls the bottom of the downwardly hanging fireproof paper film 13 through two damping wheels 194. When the fireproof paper film 13 needs to be wrapped above, when the clamped and rolled fireproof paper film 13 rises, it drags the rotation of the two damping wheels 194. The resistance generated during the rotation of the two damping wheels 194 tightens the fireproof paper film 13, improving the flatness of the surface of the fireproof paper film 13 during the winding process of the fireproof paper film 13. The damping of the damping wheel 194 is achieved through the frictional resistance generated during the rotation in the middle of the slider 197. After the floating push block 151 cuts the redundant fireproof paper film 13 on the left side of the colorful impregnated cardboard 9, the two damping wheels 194 are pulled back by the second tension spring 199, so that the two damping wheels 194 are loosened from the middle. The redundant waste fireproof paper film 13 between the two damping wheels 194 falls below. By arranging a material guiding plate above the sliding rack 5, the dropped waste fireproof paper film 13 is guided into the collection box for collection.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for manufacturing a colorful impregnated cardboard with good fire resistance, characterized in that, The manufacturing method of the fireproof multi-color impregnated cardboard mainly includes the following steps: S1. Loading the paper tube onto the machine: Load the wound fireproof paper film onto the machine and install it on the surface of the winding shaft. The fireproof paper film passes through the middle of the quantitative paper feeding wheel and hangs downwards. S2. Loading the cardboard onto the machine: Place the multi-color impregnated cardboard with an arc-shaped bending structure on the cardboard bottom support. Push and send it along the center of the multi-color impregnated cardboard through the cardboard bottom support. The multi-color impregnated cardboard is pushed into the middle of the board conveying rollers, and the board conveying rollers push it in an arc along the bending contour of the multi-color impregnated cardboard. S3. Coating the cardboard with glue: During the process of pushing and moving the multi-color impregnated cardboard in step S2, the upper and lower coating wheels respectively roll and coat the glue from the rightmost side of the multi-color impregnated cardboard, through the upper and lower surfaces of the multi-color impregnated cardboard to the leftmost side of the multi-color impregnated cardboard, so that the four surfaces of the multi-color impregnated cardboard are coated with glue. S4. Attaching the fireproof paper film: In step S3, continue to push the multi-color impregnated cardboard. The rightmost side of the multi-color impregnated cardboard contacts the fireproof paper film hanging downwards in step S1, and the fireproof paper film is tightly pressed along the surface contour of the multi-color impregnated cardboard through the upper and lower pressing components, so that the fireproof paper film is smoothly wrapped on the surface of the multi-color impregnated cardboard. S5. Cutting the paper film: During the process of tightly pressing in step S4, the pressing components will cut the redundant fireproof paper film on the left surface of the multi-color impregnated cardboard. S6. Consolidating and compressing: Further compress the fireproof paper film wrapped on the surface of the multi-color impregnated cardboard in step S5. Roll several compressing rollers from the upper and lower surfaces of the multi-color impregnated cardboard, so that the fireproof paper film adheres more tightly and firmly to the surface of the multi-color impregnated cardboard.

2. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 1, characterized in that: The above-mentioned steps S1 - S6 are mainly completed by a manufacturing device for multi-color impregnated cardboard. The manufacturing device for multi-color impregnated cardboard includes a fixed base, the fixed base is fixed on the ground, the top of the fixed base is fixed with a frame standing upright on the top surface of the fixed base. The frame is set as a semi-circular plate structure. A gear is rotatably connected in the middle of the frame. A linear guide rail is fixed on the surface of the frame. A sliding rack is slidably connected to the surface of the guide rail. The surface of the sliding rack is meshed and connected with the gear. One end of the sliding rack is provided with an electric push rod. A pushing swing arm is arranged on the surface of the gear. The top of the pushing swing arm is provided with a cardboard bottom support. The surface of the cardboard bottom support is placed with impregnated cardboard. Several groups of board conveying rollers are rotatably connected to the surface of the frame. The several groups of board conveying rollers are arranged at equal intervals in an arc on the surface of the frame. Two coating components are arranged at the middle position of the top of the board conveying rollers. The two coating components are respectively arranged on the upper and lower sides of the board conveying rollers. A winding shaft is fixedly installed at the top of the frame. The top of the winding shaft is rotatably connected to a winding shaft. A fireproof paper film is wound around the surface of the winding shaft. A quantitative paper feeding wheel is arranged below the winding shaft. The fireproof paper film wound around the surface of the winding shaft passes through the middle of the quantitative paper feeding wheel and hangs downwards. Two pushing components are arranged on the right side of the fireproof paper film hanging downwards. The two pushing components are respectively arranged on the upper and lower sides of the sliding track of the impregnated cardboard. A number of compaction rollers in the form of round roller structures are arranged on the right side of the pushing components along the upper and lower sides of the sliding track of the impregnated cardboard.

3. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 2, characterized in that: The compaction roller includes a compaction roller housing arranged on the outer wall of the compaction roller. There are two compaction roller housings in total. The two compaction roller housings are respectively arranged on the upper and lower sides of the sliding track of the impregnated cardboard, and each compaction roller housing is an arc structure. A number of compaction rollers are respectively rotatably connected to the surface of the compaction roller housing. A self-rotating power roller is also rotatably connected to the surface of each compaction roller housing.

4. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 3, characterized in that: Each coating component includes a bracket base fixed to the surface of the frame. A glue wheel bracket is rotatably connected to the surface of the bracket base. The glue wheel bracket is arranged as an arc-shaped bent rod structure. A coating wheel is rotatably connected to the top of the glue wheel bracket. A spring base is fixed to the surface of the bracket base. A tension spring is fixed to the surface of the spring base. The other end of the tension spring is fixedly connected to the middle of the glue wheel bracket.

5. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 4, characterized in that: Each coating component further includes a glue storage box fixed to the surface of the frame. Glue liquid is stored inside the glue storage box. A glue pumping pump is installed inside the glue storage box. The glue pumping pump is connected to a glue conveying pipe. The glue conveying pipe extends outside the glue storage box. The glue supply box is fixed to the surface of the glue wheel bracket. A glue spraying port is opened inside the glue supply box. The top end of the glue conveying pipe extending outside the glue storage box is connected to the glue spraying port inside the glue supply box. The glue spraying port is filled with sponge, and the sponge is in close contact with the surface of the coating wheel.

6. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 2, characterized in that: Each pushing component includes a floating pushing block elastically and floatingly connected to the surface of the frame, and a shaft support plate fixed around the floating pushing block. The floating pushing block is arranged as a long strip-shaped trapezoidal structure. An inclined film feeding guiding slope is opened on the surface of the floating pushing block. A film retreating guiding slope is opened on the other surface of the floating pushing block. The top surface of the floating pushing block is a smooth plane. Two telescopic shafts are fixed to the surface of the floating pushing block. Two through round holes are opened on the surface of the shaft support plate. The two telescopic shafts are slidably connected to each round hole on the surface of the shaft support plate. A compression spring is installed on the surface of each telescopic shaft. The two ends of the compression spring are respectively fixed to the surface of the floating pushing block and the surface of the shaft support plate.

7. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 6, characterized in that: Each floating pushing block further includes a bayonet opened on the surface of the film retreating guiding slope, and an inverted tooth extends from the middle of the bayonet.

8. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 2, characterized in that: A pulling component is arranged at the bottom of the downward-hanging fireproof paper film. The pulling component includes a fixed support fixed on the surface of the frame. Two damping wheel sliding brackets are fixed on the surface of the fixed support. Two chutes are formed on the surface of each damping wheel sliding bracket. A slider is slidably connected in each chute. Two damping wheels are rotatably connected in the middle of the two damping wheel sliding brackets. A rotating shaft is arranged at each end of each damping wheel. The rotating shafts at both ends of each damping wheel are rotatably connected to the middle of the slider. A tensioning box is fixedly installed in the middle of the two chutes on the surface of the damping wheel sliding bracket. Pulling ropes are symmetrically arranged on the left and right sides of the surface of the tensioning box. Each pulling rope on one side is connected to the surface of the slider in the chute on that side. A second tension spring is arranged on the other surface of the slider in the chute on that side. The second tension spring is connected to the surface of the chute.

9. The manufacturing method of a colorful impregnated cardboard with good fire resistance according to claim 8, characterized in that: A rope storage chamber is arranged inside the tensioning box. A rope winding wheel is rotatably connected to the surface of the rope storage chamber. The tops of the pulling ropes extending into the rope storage chamber on both sides of the tensioning box are respectively fixed to the surface of the rope winding wheel.

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