Novel corrugated board forming process

Abstract

The invention discloses a novel corrugated board forming process, which comprises an uncoiler, a preheating forming machine, a gluing machine, a glue preparation tank, a feeding mechanism, a drying box, an edge trimmer, a quality inspection machine, a transverse cutting machine and a longitudinal cutting machine, and the assembly process comprises the following steps: firstly, adding corn starch, borax, caustic soda flakes and water into the glue preparation tank through an adding port for mixing, so as to prepare corn starch glue; continuously supplying the corn starch glue to the gluing machine for use, and introducing steam into the preheating forming machine and the drying box; secondly, corrugated base paper is fed through an uncoiling machine, then preheated and formed through a preheating forming machine and then fed into a gluing machine to be subjected to gluing processing, and after gluing, the corrugated base paper is conveyed into a drying box through a feeding mechanism to be dried; and finally, the paperboards subjected to edge cutting treatment are fed into a quality inspection machine for quality inspection, and finished products with qualified quality are fed into a finished product collecting box for storage. The preheating forming machine is arranged, and corrugated base paper fed by the uncoiling machine can be preheated and formed through the preheating forming machine.

Description

Technical Field

[0001] This invention relates to the field of corrugated cardboard forming technology, specifically a novel corrugated cardboard forming process. Background Technology

[0002] Corrugated board forming process is used to shape and process corrugated board. Corrugated board is a multi-layered bonded material, consisting of at least one layer of corrugated core paper (commonly known as "corrugated sheet," "corrugated paper core," "corrugated base paper") and one layer of cardboard (also known as "boxboard"). It has high mechanical strength and can withstand collisions and drops during handling. The actual performance of corrugated board depends on three factors: the characteristics of the core paper and the cardboard, and the structure of the carton itself; it is also called corrugated board. It is made of at least one layer of corrugated paper and one layer of boxboard (also called boxboard) bonded together, and has good elasticity and extensibility. It is mainly used to manufacture cartons, carton fillings, and other packaging materials for fragile goods. It is mainly made from traditional straw pulp and waste paper, which are pulped to make a base paper similar to yellow cardboard, then mechanically rolled into a corrugated shape, and then bonded to the boxboard with adhesives such as sodium silicate.

[0003] For example, the authorized patent with publication number CN101698361B (a novel method for manufacturing corrugated cardboard) describes a process where, during the gluing of the face, core, and backing layers of single-wall or multi-wall corrugated cardboard, the face, core, and backing layers are preheated to 80°C to 90°C. Room-temperature starch adhesive is then applied to the gluing surfaces of the multi-layer cardboard materials. The face material is placed with one side facing upwards, and a breathable double-layer material is used as a conveyor belt to clamp the glued multi-layer cardboard, completing the forming process. The face material is made by laminating a surface material with paper. The surface material is selected from leather, synthetic plastic leather, woven fabric, or non-woven fabric. This invention solves the technical problems of limited surface material selection, poor strength, and poor aesthetics associated with traditional corrugated cardboard.

[0004] The aforementioned existing technologies cannot utilize the heat of steam in the corrugated cardboard forming process, and no preheating treatment is performed before bonding, making it inconvenient to control the bonding effect during the bonding process. The adhesive cannot be prepared in real time, and the dust generated during the adhesive preparation process can easily cause air pollution. The heat energy utilization during the drying process is insufficient and the drying is not uniform. The scraps generated during the edge cutting process cannot be automatically collected into the waste bin through the production line, resulting in a large workload for subsequent cleaning. The cardboard that fails the inspection cannot be recycled, leading to resource waste and increased production costs. Summary of the Invention

[0005] The purpose of this invention is to provide a novel corrugated cardboard forming process to solve the problems mentioned in the background art, such as the inability to utilize the heat of steam during the corrugated cardboard forming process, the lack of preheating treatment before bonding, which makes it inconvenient to control the bonding effect during the bonding process, the inability to prepare the adhesive in real time, the dust generated during the adhesive preparation process causing air pollution, insufficient heat utilization and uneven drying during the drying process, the inability to automatically collect the scraps generated during the edge cutting process into the waste bin through the production line, resulting in a large workload for subsequent cleaning, and the inability to recycle unqualified cardboard, leading to resource waste and increased production costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel corrugated cardboard forming process, comprising an uncoiler, a preheating forming machine, a gluing machine, a glue-making tank, a feeding mechanism, a drying oven, an edge trimming machine, a quality inspection machine, a cross-cutting machine, and a slitting machine, wherein the assembly process is as follows: First, corn starch, borax, caustic soda and water are added to the glue-making tank for mixing to prepare corn starch glue, and the corn starch glue is continuously supplied to the bonding machine. Steam is introduced into the preheating molding machine and the drying oven. Secondly, the corrugated base paper is fed by the unwinding machine, then preheated and formed by the preheating forming machine, and then sent to the bonding machine for bonding. After bonding, it is conveyed to the drying box by the feeding mechanism for drying. The dried paperboard is then sent to the edge trimming machine, cross-cutting machine and longitudinal cutting machine for edge trimming. The trimmed scraps are automatically sent to the waste bin by the scrap conveyor belt for collection. Finally, the trimmed cardboard is sent to the quality inspection machine for quality testing. Finished products that pass the quality test are stored in the finished product collection bin, while waste products are stored in the waste collection bin for later sale or secondary recycling.

[0007] Preferably, the scrap conveyor belt surrounds the areas of the edge trimmer, cross-cutting machine, and longitudinal cutting machine, and is connected to the waste bin.

[0008] Preferably, the edge trimming machine includes hydraulic rods, a punching blade holder, and an edge trimming positioning plate; two hydraulic rods are respectively located on the top two sides of the edge trimming machine, the telescopic ends of the hydraulic rods are connected to the punching blade holder, and the edge trimming positioning plate is provided with a positioning groove, which is directly opposite to the punching blade holder.

[0009] Preferably, the glue-making tank is assembled with the bonding machine. The glue-making tank is equipped with a stirring mechanism controlled by a motor. A metering head is provided at the bottom center of the glue-making tank, and the metering head is connected to the bonding feeding mechanism of the bonding machine.

[0010] Preferably, the drying box has a second steam inlet on one side of the top, a drying chamber inside the drying box, a feeding roller inside the drying chamber, and multiple fans at the bottom of the inner cavity of the drying box.

[0011] Preferably, the oven also includes an exhaust plate, which is located at the top of the inner cavity of the drying oven and communicates with the second steam inlet. The inner wall of the drying oven is provided with a heating layer.

[0012] Preferably, the waste collection box is equipped with a compression mechanism and a strip-cutting and crushing mechanism inside, with the compression mechanism located below the strip-cutting and crushing mechanism, and a bundling mechanism is provided on one side of the waste collection box. The compression mechanism and the bundling mechanism are connected vertically, and a conveyor belt is provided at the bundling mechanism.

[0013] Preferably, the mixing area of ​​the glue-making tank is equipped with a dust removal mechanism, and the dust suction port of the dust removal mechanism is located at the inlet and outlet of the glue-making tank, and the top of the preheating molding machine is equipped with a first steam inlet.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The present invention includes a preheating forming machine, which can preheat and form the corrugated base paper fed from the unwinder, pre-treating the bonding of the cardboard. The preheating forming machine can be connected to an externally supplied steam, so that the heat can be fully utilized. In the edge trimming machine area, there is a scrap conveyor belt connected to the waste bin. The scrap generated by the edge trimming machine can be sent to the waste bin in real time through the scrap conveyor belt, which can avoid the accumulation of scrap, greatly reduce the subsequent workload, and save production time.

[0015] The bonding machine and glue-making tank assembly of the present invention can supply glue to the bonding machine in real time, produce glue in a timely manner, ensure sufficient glue, and save space and is easy to use. It is equipped with a dust removal mechanism in conjunction with the glue-making tank to prevent dust and dirt contamination and improve the quality of the processing environment. It is equipped with a waste collection box in conjunction with the quality inspection machine, and the waste collection box can reprocess and reuse unqualified cardboard, which can save costs.

[0016] The drying oven of the present invention can be connected to external steam, and can make full use of the heat of the steam. The oven is equipped with a heating layer and multiple fans inside to ensure uniform heat distribution. Combined with the heat of the steam, the drying efficiency of the cardboard is improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the processing flow and processing equipment of the present invention; Figure 2 This is a flowchart of the present invention; Figure 3 This is a schematic diagram of the structure of the glue-making tank of the present invention; Figure 4 This is a front view of the edge trimming machine of the present invention; Figure 5This is a front view of the drying oven of the present invention.

[0018] In the diagram: 1. Uncoiler; 2. First steam inlet; 3. Preheating molding machine; 4. Bonding machine; 5. Glue tank; 6. Feeding mechanism; 7. Second steam inlet; 8. Drying chamber; 9. Trimming machine; 10. Waste bin; 11. Finished product collection bin; 12. Quality inspection machine; 13. Cross-cutting machine; 14. Slitting machine; 15. Waste collection bin; 16. Scrap conveyor belt; 17. Punching cutter holder; 18. Trimming positioning plate; 19. Hydraulic rod; 20. Motor; 21. Ingredient feeding port; 22. Quantitative feeding head; 23. Fan; 24. Exhaust plate; 25. Feeding roller; 26. Drying chamber. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figure 1-5 A novel corrugated cardboard forming process includes an uncoiler 1, a preheating forming machine 3, a gluing machine 4, a glue tank 5, a feeding mechanism 6, a drying oven 8, an edge trimmer 9, a quality inspection machine 12, a cross cutter 13, and a slitter 14. Its assembly process is as follows: First, corn starch, borax, caustic soda and water are added to glue-making tank 5 through inlet 21 for mixing and preparation to prepare corn starch glue. The corn starch glue is continuously supplied to adhesive machine 4 for use. Steam is introduced into preheating molding machine 3 and drying oven 8. Secondly, the corrugated base paper is fed by the unwinder 1, then preheated by the preheating forming machine 3 and then fed into the bonding machine 4 for bonding. After bonding, it is conveyed by the feeding mechanism 6 to the drying box 8 for drying. The dried paperboard is then fed into the edge trimmer 9, the cross cutter 13 and the longitudinal cutter 14 for edge trimming. The trimmed scraps are automatically fed into the waste bin 10 by the scrap conveyor belt 16 for collection. Finally, the trimmed cardboard is sent into the quality inspection machine 12 for quality inspection. Finished products that pass the quality inspection are sent into the finished product collection box 11 for storage, while waste products are sent into the waste collection box 15 for buffering, and will be sold or recycled later.

[0021] Furthermore, the scrap conveyor belt 16 surrounds the areas of the edge trimmer 9, the cross-cutting machine 13, and the longitudinal cutting machine 14, and is connected to the waste bin 10.

[0022] The scrap material conveyor belt 16 can collect and transport the scrap materials generated during the cutting process of the edge cutting machine 9, the cross cutting machine 13 and the longitudinal cutting machine 14 into the waste bin 10, which can save time for subsequent scrap material collection and reduce the workload in the later stage.

[0023] Furthermore, the edge trimming machine 9 includes a hydraulic rod 19, a punching blade holder 17, and an edge trimming positioning plate 18; two hydraulic rods 19 are respectively located on the top two sides of the edge trimming machine 9, the telescopic ends of the hydraulic rods 19 are connected to the punching blade holder 17, and the edge trimming positioning plate 18 is provided with a positioning groove, which is directly opposite to the punching blade holder 17.

[0024] The hydraulic rod 19 controls the punch holder 17 to cut the edges of the conveyed cardboard, and the cutting edge positioning plate 18 positions the cutting edge.

[0025] Furthermore, the glue-making tank 5 is assembled with the bonding machine 4. The glue-making tank 5 is equipped with a stirring mechanism controlled by a motor 20. A quantitative supply head 22 is provided at the bottom center of the glue-making tank 5, and the quantitative supply head 22 is connected to the bonding feeding mechanism of the bonding machine 4.

[0026] The motor 20 drives the stirring mechanism to rotate, which can stir the mixture of corn starch, borax, caustic soda and water to produce corn starch glue. The produced glue liquid is quantitatively added into the bonding machine 4 through the metering head 22, and the bonding machine 4 is used to bond and form the cardboard.

[0027] Furthermore, a second steam inlet 7 is provided on one side of the top of the drying box 8, a drying chamber 26 is provided inside the drying box 8, a feeding roller 25 is provided inside the drying chamber 26, and multiple fans 23 are provided at the bottom of the inner cavity of the drying box 8.

[0028] External steam can be added through the second steam inlet 7, and the paperboard is dried through the drying chamber 26. The paperboard is conveyed by the feeding roller 25, and multiple fans 23 are used to evenly distribute the heat in the drying chamber 26, so that the paperboard can be dried quickly.

[0029] Furthermore, it also includes an exhaust plate 24, which is located at the top of the inner cavity of the drying chamber 8 and is connected to the second steam inlet 7. The inner side wall of the drying chamber 8 is provided with a heating layer.

[0030] The exhaust plate 24 is used to discharge steam into the drying chamber 8, which can enhance the drying efficiency and make full use of the heat of the steam. The heating layer is used to increase the heat inside the drying chamber 8.

[0031] Furthermore, the waste collection box 15 is equipped with a compression mechanism and a strip-cutting and crushing mechanism inside, with the compression mechanism located below the strip-cutting and crushing mechanism, and a bundling mechanism is provided on one side of the waste collection box 15. The compression mechanism and the bundling mechanism are connected vertically, and a conveyor belt is provided at the bundling mechanism.

[0032] The collected fertilizer is cut and crushed by a strip-cutting and crushing mechanism, then compressed and sorted by a compression mechanism, and finally bundled by a baling mechanism. The waste is then discharged by a conveyor belt for subsequent recycling or sale.

[0033] Furthermore, the mixing area of ​​the glue-making tank 5 is equipped with a dust removal mechanism, and the dust suction port of the dust removal mechanism is located at the feed and discharge ports of the glue-making tank 5. The top of the preheating molding machine 3 is equipped with a first steam inlet 2.

[0034] The dust removal mechanism is used to absorb and purify the dust and dirt produced by the glue-making tank 5 during the glue-making process, which can prevent air pollution. Steam can be added into the preheating molding machine 3 through the first steam inlet 2 for use.

[0035] Working principle: First, corn starch, borax, caustic soda, and water are added to the glue-making tank 5 through the ingredient inlet 21 for mixing and preparation to make corn starch glue. The corn starch glue is continuously supplied to the bonding machine 4 for use. Steam is introduced into the preheating forming machine 3 and the drying chamber 8. Second, corrugated base paper is fed by the uncoiler 1, then preheated by the preheating forming machine 3 and then fed into the bonding machine 4 for bonding. After bonding, it is conveyed by the feeding mechanism 6 to the drying chamber 8 for drying. The dried cardboard is then fed into the edge trimmer 9 and cross-cutting machine. The edges are trimmed in machine 13 and slitting machine 14. The trimmed scraps are automatically fed into waste bin 10 by scrap conveyor belt 16. Finally, the trimmed cardboard is sent to quality inspection machine 12 for quality inspection. Finished products that pass the quality inspection are sent to finished product collection bin 11 for storage, while waste products are sent to waste collection bin 15 for buffering. They will be sold or recycled later. The waste collection bin 15 is crushed and cut into strips and compressed and bundled by compression and crushing mechanisms. After bundling, the strips are discharged by output belt.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel corrugated cardboard forming process, comprising an uncoiler (1), a preheating forming machine (3), a gluing machine (4), a glue-making tank (5), a feeding mechanism (6), a drying oven (8), an edge trimmer (9), a quality inspection machine (12), a cross-cutting machine (13), and a slitting machine (14), the assembly process of which is as follows: First, corn starch, borax, caustic soda and water are added to the glue-making tank (5) through the ingredient inlet (21) for mixing and preparation to make corn starch glue. The corn starch glue is then continuously supplied to the bonding machine (4) for use. Steam is introduced into the preheating molding machine (3) and the drying oven (8). Next, the corrugated base paper is fed by the unwinder 1, and then preheated and formed by the preheating forming machine (3) and then fed into the bonding machine (4) for bonding processing. After bonding, it is conveyed by the feeding mechanism (6) to the drying box (8) for drying. The dried paperboard is then fed into the edge trimmer (9), the cross cutter (13) and the longitudinal cutter (14) for edge trimming. The trimmed scraps are automatically fed into the garbage bin (10) by the scrap conveyor belt (16) for collection. Finally, the cardboard after edge trimming is sent into the quality inspection machine (12) for quality inspection. Finished products that pass the quality inspection are sent into the finished product collection box (11) for storage, while waste products are sent into the waste collection box (15) for buffering.

2. The novel corrugated cardboard forming process according to claim 1, characterized in that: The scrap conveyor belt (16) surrounds the area of ​​the edge trimmer (9), the cross-cutting machine (13) and the longitudinal cutting machine (14) and is connected to the waste bin (10).

3. The novel corrugated cardboard forming process according to claim 2, characterized in that: The edge trimming machine (9) includes a hydraulic rod (19), a punching blade holder (17), and an edge trimming positioning plate (18). The two hydraulic rods (19) are respectively located on the top two sides of the edge trimming machine (9). The telescopic ends of the hydraulic rods (19) are connected to the punching blade holder (17). The edge trimming positioning plate (18) is provided with a positioning groove, and the positioning groove is directly opposite to the punching blade holder (17).

4. The novel corrugated cardboard forming process according to claim 1, characterized in that: The glue-making tank (5) is assembled with the adhesive machine (4). The glue-making tank (5) is equipped with a stirring mechanism controlled by a motor (20). The bottom center of the glue-making tank (5) is equipped with a quantitative supply head (22), and the quantitative supply head (22) is connected to the adhesive feeding mechanism of the adhesive machine (4).

5. The novel corrugated cardboard forming process according to claim 1, characterized in that: The drying box (8) has a second steam inlet (7) on one side of the top, a drying chamber (26) inside the drying box (8), a feeding roller (25) inside the drying chamber (26), and multiple fans (23) at the bottom of the inner cavity of the drying box (8).

6. The novel corrugated cardboard forming process according to claim 5, characterized in that: It also includes an exhaust plate (24), which is located at the top of the inner cavity of the drying box (8) and is connected to the second steam inlet (7). The inner wall of the drying box (8) is provided with a heating layer.

7. The novel corrugated cardboard forming process according to claim 1, characterized in that: The waste collection box (15) is equipped with a compression mechanism and a strip-cutting and crushing mechanism inside. The compression mechanism is located below the strip-cutting and crushing mechanism, and a bundling mechanism is provided on one side of the waste collection box (15). The compression mechanism and the bundling mechanism are connected vertically, and a conveyor belt is provided at the bundling mechanism.

8. The novel corrugated cardboard forming process according to claim 1, characterized in that: The mixing area of ​​the glue-making tank (5) is equipped with a dust removal mechanism, and the dust suction port of the dust removal mechanism is located at the feed and discharge ports of the glue-making tank (5). The top of the preheating molding machine (3) is equipped with a first steam inlet (2).

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