Production equipment for secondary processing of flame-retardant paper

Abstract

The utility model relates to production equipment for secondary processing of flame-retardant paper in the field of flame-retardant paper production equipment, which comprises an unwinding mechanism, a solvent pool, a drying box and a winding mechanism, the unwinding mechanism and the winding mechanism are oppositely arranged, one end of the solvent pool is in contact with the output end of the unwinding mechanism, the other end of the solvent pool is connected with a rack, and the drying box is arranged on the rack. A solvent pool is arranged on the machine frame, a traction mechanism is connected to the machine frame, a cleaning pool is arranged on the machine frame, roll paper is placed on the unwinding mechanism, and the roll paper sequentially penetrates through the solvent pool, the traction mechanism and the cleaning pool through the opening end, enters the drying box and enters the winding mechanism from the output end of the drying box. The surface of the roll paper can be uniformly and effectively coated to form a flame-retardant layer, and the formed roll paper is coated for flame retardance according to requirements to form the flame-retardant paper, so that the forming procedures of roll paper raw materials are reduced, the production cost of flame-retardant paper production equipment is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of flame retardant paper production equipment, in particular to production equipment for secondary processing of flame retardant paper. Background Art

[0002] As an important fireproof material, flame-retardant paper has received extensive attention and application in recent years. Flame-retardant paper is generally made of kraft paper with flame retardants added to achieve the flame-retardant effect. With its excellent flame-retardant properties, flame-retardant paper plays a vital role in many fields such as construction, furniture, electrical appliances, and transportation. In the construction field, flame-retardant paper is widely used in building materials such as walls, ceilings, and floors due to its excellent fire resistance, effectively preventing the spread of flames and providing solid protection for people's lives and property. In the electrical field, flame-retardant paper is used as a material for components such as wire sheaths and cable insulation layers, effectively reducing the occurrence of electrical fires.

[0003] At present, the production equipment of flame-retardant paper is mainly composed of basic structures such as raw material preparation device, forming device, drying device and cutting device. The raw material preparation device is responsible for mixing the flame-retardant fiber with other additives to form uniform pulp. The forming device makes the pulp into paper through a paper forming machine. The drying device is used to remove excess moisture from the paper to make the paper reach a suitable degree of dryness, and then it is rolled up through a winding mechanism, so that the paper can be cut into different sizes according to needs through the subsequent cutting device.

[0004] However, the flame retardancy of kraft paper can be achieved by applying the corresponding coating to achieve the flame retardant effect, but for the secondary processing of the existing kraft paper after forming, such as surface decoration, functional coating (flame retardant layer) and other treatments, the kraft paper is not easy to be processed again according to the needs. The current flame retardant paper production equipment generally requires the mixing of kraft paper raw materials and flame retardants through the forming of the paper forming device and the drying of the drying device to complete the production of flame retardant paper. However, due to the complex raw material forming production process of flame retardant paper and the complex structure of the integrated production forming equipment of flame retardant paper, when the user uses the integrated forming production equipment in production, the production cost of flame retardant paper is relatively high and the production process is complicated. Therefore, using the one-piece forming flame retardant paper production equipment for production not only increases the production cost, but also reduces the production efficiency. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a production equipment for secondary processing of flame-retardant paper, so as to solve the technical problems that the production equipment of one-piece flame-retardant paper in the above-mentioned background technology is complex in structure and it is not easy to coat the formed kraft paper with flame retardant production, resulting in low production efficiency and high production cost of flame-retardant paper.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] The invention discloses production equipment for secondary processing of flame-retardant paper, comprising an unwinding mechanism, a solvent tank, a drying box and a winding mechanism, wherein the unwinding mechanism and the winding mechanism are arranged opposite to each other, the solvent tank is located between the unwinding mechanism and the winding mechanism, one end of the solvent tank is in contact with the output end of the unwinding mechanism, the other end of the solvent tank is connected to a frame, a traction mechanism is connected to the frame, and a cleaning tank is arranged on the frame, the end of the frame is connected to the drying box, the output end of the drying box is connected to the input end of the winding mechanism, a roll of paper is placed on the unwinding mechanism, the roll of paper passes through the solvent tank, the traction mechanism and the cleaning tank in sequence through the open end, and enters the drying box and enters the winding mechanism from the output end of the drying box, thereby completing the secondary flame-retardant processing of the roll of paper.

[0008] Further in the above description, the unwinding mechanism is composed of a mounting frame and an unwinding roller, the paper roll is coaxially connected to the unwinding roller, the unwinding roller is mounted on the mounting frame, and the mounting frame is connected to a guide roller, the open end of the paper roll passes through the guide roller and extends toward the solvent pool, and the unwinding roller drives the formed kraft paper roll to be transferred to the solvent pool, thereby facilitating the subsequent coating of the paper roll to form a flame retardant layer, thereby improving the production efficiency of the paper roll, thereby reducing the mixing of the kraft paper raw material and the flame retardant and the subsequent forming process, and reducing production costs.

[0009] Further in the above description, a containing tank is formed in the solvent pool, the containing tank is filled with a flame retardant, and a filter screen and a plurality of movable rollers are connected to the containing tank, a plurality of filter holes are formed on the surface of the filter screen, the edge of the filter screen is connected to the inner wall of the containing tank, the movable roller is connected to the inner wall of the containing tank through a bearing seat, and a heating plate is connected to the interior of the containing tank. The roll paper enters the containing tank, so that the flame retardant in the containing tank is coated on the surface of the roll paper to form a flame retardant layer, so that the roll paper becomes flame retardant paper, thereby improving the production efficiency of the roll paper and reducing the production cost of the roll paper. The internal solvent can be filtered by the set filter screen, so that the residue on the roll paper is settled at the bottom of the containing tank.

[0010] Further in the above description, the solvent pool is provided with a drain outlet connected to the containing tank, the drain outlet is connected to a drain pipe, the side of the drain pipe is connected to a circulating water pipe, one end of the circulating water pipe is connected to a circulating water pump, the water inlet end of the circulating water pump is connected to the circulating water pump, and the water outlet end of the circulating water pump is connected to the containing tank through a connecting pipe, the liquid in the solvent pool can be recovered through the connected circulating water pipe, and the liquid can be reintroduced into the solvent pool through the circulating water pump through the connecting pipe, so as to further recycle the liquid.

[0011] Further in the above description, the traction mechanism is composed of a pressure roller, a traction roller and two support frames, the pressure roller and the traction roller are installed between the two support frames, the two ends of the pressure roller are connected to the sides of the support frames through a tensioner, the tensioner is composed of a frame, a sliding seat and a tensioning cylinder, the frame is connected to the side of the support frame, the sliding seat is slidably installed in the frame, the telescopic end of the tensioning cylinder is connected to the sliding seat, and the sliding seat can be driven to slide and adjust along the frame, so that the outer surface of the pressure roller contacts the outer surface of the traction roller, the paper roll can be conveyed into the cleaning tank in sequence through the traction mechanism, and the pressure roller can be driven by the tensioner to roll the surface of the paper roll, so that the flame retardant can be coated on the surface of the paper roll at a high temperature.

[0012] Further in the above description, the cleaning pool is installed on a frame, and a cleaning groove is formed inside the cleaning pool, the cleaning groove is filled with cleaning liquid, and a gate valve connected to the cleaning groove is opened on the side of the cleaning pool, and a partition net is connected in the cleaning groove, so that the cleaning groove can clean the roll paper and improve the coating quality of the flame retardant layer.

[0013] Further in the above description, a plurality of guide rollers are connected to the interior of the drying box, and a plurality of heating tubes are provided in the drying box, the heating tubes are distributed at intervals along the length direction of the drying box, a plurality of water vapor exhaust holes are provided on the top of the drying box, the output end of the drying box extends to the winding mechanism, and a discharge roller is connected to the bracket.

[0014] Further in the above description, the output end of the drying box is connected to a cooling trough, a plurality of ventilation holes are opened on the cooling trough, and the ventilation holes are all connected to a cooling fan, and the cooling fan is installed on the ventilation holes of the cooling trough. The cooling fan can be used to cool the surface of the roll paper output from the drying box to prevent excessive temperature from causing adhesion in the subsequent winding mechanism.

[0015] The beneficial effects of the utility model are as follows: the unwinding mechanism can stably release the formed roll paper, so that the roll paper can enter the subsequent processing flow smoothly and evenly, greatly improving the production efficiency, ensuring the continuity and stability of the production process, and making the roll paper enter the solvent pool containing the flame retardant treatment solvent. The immersion of the roll paper in the solvent pool can make the surface of the roll paper be evenly and effectively coated with a flame retardant layer on the surface, and the formed roll paper is flame-retardantly coated to form flame retardant paper according to demand, thereby reducing the forming process of the roll paper raw material and reducing the production cost of the flame retardant paper production equipment. When the roll paper coated with the flame retardant layer enters the cleaning pool through the traction of the traction mechanism, the excess solvent or impurities on the surface of the roll paper can be effectively removed, ensuring the cleanliness and smoothness of the surface of the roll paper, improving the quality of the flame retardant coating of the roll paper, and making the cleaned roll paper enter the drying box so that the flame retardant can be quickly and effectively dried and fixed in the paper, so as to ensure the uniformity and efficiency of the drying process, thereby ensuring the quality and performance of the flame retardant paper, and the winding mechanism can be used to neatly wind up the roll paper coated with the flame retardant, which is convenient for subsequent storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0017] Figure 2 is an overall cross-sectional view of this embodiment;

[0018] Figure 3 Schematic diagram of the connection structure of the solvent pool in this embodiment;

[0019] Figure 4 is a cross-sectional view of the solvent tank in this embodiment;

[0020] Figure 5 Schematic diagram of the structure of the traction mechanism in this embodiment;

[0021] Figure 6 is a cross-sectional view of the drying box in this embodiment;

[0022] The reference numerals in the figure are: 1-solvent tank, 2-drying box, 3-frame, 4-cleaning tank, 5-mounting frame, 6-unwinding roller, 7-guide roller, 8-heating plate, 9-drainage pipe, 10-circulating water pipe, 11-circulating water pump, 12-connecting pipe, 13-pressing roller, 14-traction roller, 15-support frame, 16-tensioner, 17-tensioning cylinder, 18-cleaning tank, 19-gate valve, 20-partition net, 21-guide roller, 22-heating pipe, 23-water vapor exhaust, 24-discharge roller, 25-cooling tank, 26-cooling fan. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] In this embodiment, refer to Figure 1-Figure 6 The specific implementation of the production equipment for secondary processing of flame-retardant paper includes a unwinding mechanism, a solvent tank 1, a drying box 2 and a winding mechanism. The unwinding mechanism and the winding mechanism are arranged opposite to each other, and the solvent tank 1 is located between the unwinding mechanism and the winding mechanism. One end of the solvent tank 1 is in contact with the output end of the unwinding mechanism, and the other end of the solvent tank 1 is connected to a frame 3, and a traction mechanism is connected to the frame 3, and a cleaning tank 4 is provided on the frame 3. The end of the frame 3 is connected to the drying box 2, and the output end of the drying box 2 is connected to the input end of the winding mechanism. A roll of paper is placed on the unwinding mechanism, and the roll of paper passes through the solvent tank 1, the traction mechanism and the cleaning tank 4 in sequence through the open end, and enters the drying box 2 and enters the winding mechanism from the output end of the drying box 2, thereby completing the secondary flame retardant processing of the roll of paper.

[0025] The unwinding mechanism is composed of a mounting frame 5 and an unwinding roller 6. The paper roll is coaxially connected to the unwinding roller 6. The unwinding roller 6 is mounted on the mounting frame 5. The mounting frame 5 is connected with a guide roller 7. The open end of the paper roll passes through the guide roller 7 and extends toward the solvent pool 1. The unwinding roller 6 drives the formed kraft paper roll to be transferred to the solvent pool 1, so as to facilitate the subsequent coating of the paper roll to form a flame retardant layer, thereby improving the production efficiency of the paper roll, thereby reducing the mixing of the kraft paper raw material and the flame retardant and the subsequent forming process, and reducing the production cost.

[0026] A receiving tank 27 is formed in the solvent pool 1, and the receiving tank 27 is filled with a flame retardant. A filter screen 28 and a plurality of movable rollers 29 are connected to the receiving tank 27. A plurality of filter holes are formed on the surface of the filter screen 28. The edge of the filter screen 28 is connected to the inner wall of the receiving tank 27. The movable roller 29 is connected to the inner wall of the receiving tank 27 through a bearing seat. A heating plate 8 is connected to the inside of the receiving tank 27. When the roll paper enters the receiving tank 27, the flame retardant in the receiving tank 27 is coated on the surface of the roll paper to form a flame retardant layer, thereby making the roll paper flame retardant paper, which can improve the production efficiency of the roll paper and reduce the production cost of the roll paper. The filter screen 28 can filter the internal solvent so that the residue on the roll paper is deposited at the bottom of the receiving tank 27.

[0027] A drain outlet connected to the containing tank 27 is provided on the solvent tank 1, and a drain pipe 9 is connected to the drain outlet. A circulating water pipe 10 is connected to the side of the drain pipe 9, and a circulating water pump 11 is connected to one end of the circulating water pipe 10. The water inlet end of the circulating water pump 11 is connected to the circulating water pump 11, and the water outlet end of the circulating water pump 11 is connected to the containing tank 27 through a connecting pipe 12. The liquid in the solvent tank 1 can be recovered through the connected circulating water pipe 10, and the liquid can be reintroduced into the solvent tank 1 through the circulating water pump 11 through the connecting pipe 12, so that the liquid can be further recycled.

[0028] The traction mechanism is composed of a pressure roller 13, a traction roller 14 and two support frames 15. The pressure roller 13 and the traction roller 14 are installed between the two support frames 15. The two ends of the pressure roller 13 are connected to the sides of the support frames 15 through a tensioner 16. The tensioner 16 is composed of a frame, a sliding seat and a tensioning cylinder 17. The frame is connected to the side of the support frame 15. The sliding seat is slidably installed in the frame. The telescopic end of the tensioning cylinder 17 is connected to the sliding seat, which can drive the sliding seat to slide and adjust along the frame, so that the outer surface of the pressure roller 13 contacts the outer surface of the traction roller 14. The paper rolls can be conveyed into the cleaning tank 4 in sequence through the traction mechanism. The pressure roller 13 can be driven by the tensioner 16 to roll the surface of the paper roll, so that the flame retardant can be coated on the surface of the paper roll at a high temperature.

[0029] The cleaning pool 4 is installed on the frame 3, and a cleaning tank 18 is formed inside the cleaning pool 4. The cleaning tank 18 is filled with cleaning liquid, and a gate valve 19 connected to the cleaning tank 18 is opened on the side of the cleaning pool 4. A partition net 20 is connected to the cleaning tank 18, so that the cleaning tank 18 can clean the roll paper and improve the coating quality of the flame retardant layer.

[0030] A plurality of guide rollers 21 are connected to the interior of the drying box 2, and a plurality of heating tubes 22 are provided inside the drying box 2. The heating tubes 22 are spaced apart along the length direction of the drying box 2. A plurality of water vapor exhaust holes 23 are provided on the top of the drying box 2. The output end of the drying box 2 extends toward the winding mechanism and is connected to a discharge roller 24 through a bracket.

[0031] The output end of the drying box 2 is connected to a cooling groove 25, on which a plurality of ventilation holes are provided, and each of the ventilation holes is connected to a cooling fan 26, which is installed on the ventilation holes of the cooling groove 25. The cooling fan 26 can be used to cool the surface of the roll paper output from the drying box 2 to prevent excessive temperature from causing adhesion in the subsequent winding mechanism.

[0032] In this embodiment, the roll paper is formed kraft paper, and the specific production process of the production equipment using the secondary processed flame retardant paper is as follows:

[0033] The first step: unwinding, installing the wound kraft paper on the unwinding mechanism, so that the unwinding roller 6 of the unwinding mechanism is coaxially connected with the kraft paper, and extending the open end of the kraft paper toward the solvent pool 1;

[0034] Step 2: Mixing: injecting water and flame retardant into the solvent pool 1. The flame retardant may be aluminum hydroxide, aluminum silicate, ammonium phosphate, etc. among inorganic flame retardants;

[0035] Step 3: coating, the kraft paper enters the solvent pool 1 and is driven by the movable roller 29 to evenly coat the surface of the kraft paper with the flame retardant to form a flame retardant layer;

[0036] Step 4: Cleaning: The kraft paper is pulled into the cleaning tank 4 by the pulling mechanism to clean the excess impurities on the surface of the kraft paper to improve the flame retardant effect;

[0037] Step 5: Drying: The traction mechanism on the frame 3 pulls the cleaned kraft paper into the drying box 2, and the heating tube 22 in the drying box 2 is heated to dry the surface of the kraft paper, so that the flame retardant layer is coated on the surface of the kraft paper;

[0038] Step 6: Rewinding: Connect an external rewinding mechanism so that the processed kraft paper can be rewinded through the rewinding mechanism, thereby completing the secondary processing of the kraft paper.

[0039] The specific use principle in this embodiment is: the formed and wound kraft paper is placed on the unwinding mechanism, and under the drive of the unwinding mechanism, the kraft paper can enter the subsequent processing flow smoothly and evenly. When the kraft paper enters the solvent pool 1 containing the flame retardant treatment solvent, the flame retardant treatment solvent in this embodiment is specifically aluminum oxide (α-Al2O3). The immersion of the kraft paper in the solvent pool 1 enables the surface of the kraft paper to be evenly and effectively coated with a flame retardant layer on the surface. According to the needs, the formed kraft paper is flame-retardantly coated to form flame-retardant paper, thereby reducing the forming process of the kraft paper raw material and reducing the production cost of the flame retardant paper production equipment. When the kraft paper coated with the flame retardant layer passes through the traction roller 14 and the pressure roller 13, the flame retardant layer is formed. Leading the kraft paper roll downward into the cleaning pool 4 can effectively remove excess solvents or impurities on the surface of the kraft paper roll, ensure the cleanliness and smoothness of the surface of the kraft paper roll, improve the quality of the flame retardant coating on the paper roll, and allow the cleaned paper roll to enter the drying box 2 to quickly and effectively dry and fix the flame retardant in the paper. The kraft paper roll passes through the guide roller 21 of the drying box 2 to ensure the uniformity and efficiency of the drying process, thereby ensuring the quality and performance of the flame retardant paper. Through the cooling trough 25 connected to the output end of the drying box 2, the surface of the kraft paper roll can be quickly cooled under the drive of the cooling fan 26, so that the subsequent use of the winding mechanism can neatly roll up the kraft paper coated with flame retardant, which is convenient for subsequent storage and transportation.

[0040] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. Production equipment for secondary processing of flame-retardant paper, comprising an unwinding mechanism, a solvent tank, a drying box and a rewinding mechanism, wherein the unwinding mechanism and the rewinding mechanism are arranged opposite to each other, and the solvent tank is located between the unwinding mechanism and the rewinding mechanism, characterized in that: One end of the solvent pool is in contact with the output end of the unwinding mechanism, the other end of the solvent pool is connected to a frame, the frame is connected to a traction mechanism, and the frame is provided with a cleaning tank, the end of the frame is connected to a drying box, the output end of the drying box is connected to the input end of the rewinding mechanism, a roll of paper is placed on the unwinding mechanism, the roll of paper passes through the solvent pool, the traction mechanism and the cleaning tank in sequence through the open end, and enters the drying box and enters the rewinding mechanism from the output end of the drying box, thereby completing the secondary flame retardant processing of the roll of paper.

2. The production equipment for secondary processing of flame-retardant paper according to claim 1, characterized in that: The unwinding mechanism is composed of a mounting frame and an unwinding roller. The paper roll is coaxially connected to the unwinding roller. The unwinding roller is mounted on the mounting frame. The mounting frame is connected to a guide roller. The open end of the paper roll passes through the guide roller and extends toward the solvent pool.

3. The production equipment for secondary processing of flame-retardant paper according to claim 1, characterized in that: A containing tank is formed in the solvent pool, the containing tank is filled with flame retardant, a filter screen and a plurality of movable rollers are connected to the containing tank, a plurality of filter holes are formed on the surface of the filter screen, the edge of the filter screen is connected to the inner wall of the containing tank, the movable roller is connected to the inner wall of the containing tank through a bearing seat, and a heating plate is connected to the inside of the containing tank.

4. The production equipment for secondary processing of flame retardant paper according to claim 3, characterized in that: The solvent pool is provided with a drain outlet connected to the containing tank, the drain outlet is connected to a drain pipe, the side of the drain pipe is connected to a circulating water pipe, one end of the circulating water pipe is connected to a circulating water pump, the water inlet end of the circulating water pump is connected to the circulating water pump, and the water outlet end of the circulating water pump is connected to the containing tank through a connecting pipe.

5. The production equipment for secondary processing of flame-retardant paper according to claim 1, characterized in that: The traction mechanism is composed of a pressure roller, a traction roller and two support frames. The pressure roller and the traction roller are installed between the two support frames. The two ends of the pressure roller are connected to the sides of the support frames through a tensioner. The tensioner is composed of a frame, a sliding seat and a tensioning cylinder. The frame is connected to the sides of the support frames. The sliding seat is slidably installed in the frame. The telescopic end of the tensioning cylinder is connected to the sliding seat, which can drive the sliding seat to slide and adjust along the frame, so that the outer surface of the pressure roller contacts the outer surface of the traction roller.

6. The production equipment for secondary processing of flame-retardant paper according to claim 1, characterized in that: The cleaning pool is installed on the frame, and a cleaning tank is formed inside the cleaning pool. The cleaning tank is filled with cleaning liquid, and a gate valve connected to the cleaning tank is opened on the side of the cleaning pool. A partition net is connected in the cleaning tank.

7. The production equipment for secondary processing of flame-retardant paper according to any one of claims 1 to 6, characterized in that: The drying box is connected to a plurality of guide rollers inside, and a plurality of heating tubes are arranged inside the drying box, which are spaced apart along the length direction of the drying box, a plurality of water vapor exhaust holes are opened on the top of the drying box, and the output end of the drying box extends to the winding mechanism and is connected to a discharging roller through a bracket.

8. The production equipment for secondary processing of flame-retardant paper according to any one of claims 1 to 6, characterized in that: The output end of the drying box is connected with a cooling groove, a plurality of ventilation holes are opened on the cooling groove, and each of the ventilation holes is connected with a cooling fan.

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