Steam circulating system of paperboard double-sided machine

Abstract

The utility model belongs to the technical field of double-faced machines, and relates to a paperboard double-faced machine steam circulation system which comprises a double-faced machine, steam circulation assemblies are fixedly arranged on the two sides of the double-faced machine, each steam circulation assembly comprises an air pump, an air inlet pipe and an air outlet pipe, and the air pumps are fixedly connected to the outer side face of the double-faced machine. One end of the air inlet pipe is fixedly connected to the input end of the air pump, the other end of the air inlet pipe fixedly penetrates through the side face of the double-faced machine, one end of the air outlet pipe is fixedly connected to the output end of the air pump, the other end of the air outlet pipe fixedly penetrates through the side face of the double-faced machine, a filtering box is arranged on the air inlet pipe, and a heating box is arranged on the air outlet pipe. And four fans are uniformly and fixedly connected to the side surface of the end part of the double-sided machine. According to the utility model, air in the double-sided machine can be pumped into the filter box through the air pump, so that cooled steam in the double-sided machine can be continuously pumped out through the air pump, and is heated again for recycling, so that the waste is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of double-facer technology and relates to a steam circulation system for a cardboard double-facer. Background Technology

[0002] The main function of a double-facer is to bond single-face corrugated cardboard and face paper together, heat and cure them, dry them, and then cool and set them to form high-quality three-, five-, or seven-layer corrugated cardboard. The cardboard is then transferred to equipment such as a slitting and creasing machine for cutting. However, after the cardboard passes through the double-layer bonding area, the temperature drops, affecting the glue gelatinization rate and thus reducing the bonding effect. This can easily lead to delamination and reduced production efficiency. Therefore, a steam circulation system is needed to heat the cardboard and the glue layer to increase gelatinization and bonding speed, thereby enhancing the bonding effect.

[0003] The steam heating system for a double-facer in a corrugated cardboard production line disclosed in Chinese patent CN213861005U includes a steam spray box, a vertical steam distribution cylinder, a steam-water separator, a first electric actuator, and a second electric actuator. The steam heating system sprays steam onto the corrugated paper. The vertical steam distribution cylinder introduces steam, and the steam valve is opened so that the steam enters the steam-water separator for water-vapor separation. The separated steam enters the steam spray stainless steel pipe in the steam spray box through the first electric actuator or the first electric actuator and the second electric actuator.

[0004] The steam heating system uses a steam spray box, a vertical steam cylinder, a steam-water separator, a first electric actuator, and a second electric actuator to spray steam. However, the steam sprayed onto the cardboard flows into the outside air for natural cooling and cannot be recycled, resulting in waste and increased production costs.

[0005] To solve the above problems, this utility model proposes a steam circulation system for a cardboard double-facer. Utility Model Content

[0006] To address the problems existing in the background technology, this utility model proposes a steam circulation system for a cardboard double-facer.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a double-sided machine, on both sides of which a steam circulation assembly is fixedly installed. The steam circulation assembly includes an air pump, an air inlet pipe, and an air outlet pipe. The air pump is fixedly connected to the outer side of the double-sided machine. One end of the air inlet pipe is fixedly connected to the input end of the air pump, and the other end of the air inlet pipe is fixedly penetrated through the side of the double-sided machine. One end of the air outlet pipe is fixedly connected to the output end of the air pump, and the other end of the air outlet pipe is fixedly penetrated through the side of the double-sided machine.

[0008] A filter box is installed on the air inlet pipe, a heating box is installed on the air outlet pipe, and four fans are evenly fixedly connected to the side of the end of the double-sided machine.

[0009] Furthermore, the air inlet pipe includes a first connecting pipe, a second connecting pipe, and two first branch pipes. One end of the second connecting pipe is fixedly connected to the input end of the air pump, and the other end of the second connecting pipe is fixedly connected to the air outlet end of the filter box. One end of the first connecting pipe is fixedly connected to the air inlet end of the filter box, and the other end of the first connecting pipe is fixedly connected to the two first branch pipes through a water pipe joint. Both first branch pipes are vertically arranged, and the other ends of both first branch pipes are fixedly inserted through the side of the double-sided machine.

[0010] Furthermore, the filter box is fixedly connected to one side of the double-sided machine. Inside the filter box is a filter screen box, which is formed by woven metal wire and filled with filter cotton.

[0011] Furthermore, the air outlet pipe includes a third connecting pipe, a fourth connecting pipe, and two second branch pipes. One end of the third connecting pipe is fixedly connected to the output end of the air pump, and the other end of the third connecting pipe is fixedly connected to the air inlet end of the heating box. One end of the fourth connecting pipe is fixedly connected to the air outlet end of the heating box, and the other end of the fourth connecting pipe is fixedly connected to the two second branch pipes through a water pipe joint. Both second branch pipes are vertically arranged, and the other ends of both second branch pipes are fixedly inserted through the side of the double-sided machine.

[0012] Furthermore, the interior of the double-sided machine is fixedly connected with two jet tubes from top to bottom. The end of the upper second branch tube extends into one of the upper jet tubes, and the end of the lower second branch tube extends into the other jet tube. Both jet tubes are provided with a number of jet holes spaced apart.

[0013] Furthermore, the heating box is fixedly connected to one side of the double-sided machine. The heating box is equipped with a heating plate with several air vents evenly distributed on it. Heating wires are laid inside the heating plate, and a water inlet is provided on the side of the heating box.

[0014] Furthermore, the double-sided machine has a feed inlet at one end and a discharge outlet at the other end. A fan is fixedly connected to the end of the double-sided machine with the feed inlet, and a receiving box is fixedly connected to the bottom of the end of the double-sided machine with the discharge outlet.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The steam circulation system of this cardboard double-facer is equipped with an air pump. The air pump draws the gas inside the double-facer into the filter box. The filtered gas then enters the heating box, where it heats the gas and the water inside. The steam generated is then discharged back into the double-facer through a second branch pipe. The steam that cools down inside the double-facer can be drawn out again by the air pump and reheated for reuse, reducing waste and lowering production costs. Attached Figure Description

[0017] Fig. 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Fig. 2 This is a schematic diagram of the structure of the filter box and the heating box in this utility model;

[0019] Fig. 3 This is a structural schematic diagram of the double-sided machine in this utility model.

[0020] In the diagram: 1. Double-sided machine; 2. Receiving box; 3. Air pump; 4. First connecting pipe; 5. First branch pipe; 6. Suction head; 7. Second connecting pipe; 8. Heating plate; 9. Second branch pipe; 10. Air jet; 11. Air jet hole; 12. Fan; 13. Drive roller; 14. Filter box; 15. Filter box; 16. Heating box; 17. Third connecting pipe; 18. Fourth connecting pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figs. 1-3 As shown, the technical solution adopted by this utility model is as follows: a steam circulation system for a cardboard double-facer, including a double-facer 1, with steam circulation components fixedly installed on both sides of the double-facer 1. The steam circulation components include an air pump 3, an air inlet pipe, and an air outlet pipe, with the air pump 3 fixedly connected to the outer surface of the double-facer 1.

[0023] One end of the air intake pipe is fixedly connected to the input end of the air pump 3, and the other end of the air intake pipe is fixedly inserted through the side of the double-sided machine 1. A filter box 15 is installed on the air intake pipe.

[0024] The air inlet pipe includes a first connecting pipe 4, a second connecting pipe 7, and two first branch pipes 5. One end of the second connecting pipe 7 is fixedly connected to the input end of the air pump 3, and the other end of the second connecting pipe 7 is fixedly connected to the air outlet end of the filter box 15. One end of the first connecting pipe 4 is fixedly connected to the air inlet end of the filter box 15, and the other end of the first connecting pipe 4 is fixedly connected to the two first branch pipes 5 via water pipe connectors. This allows the gas inside the double-sided machine 1 to enter the interior of the first connecting pipe 4 together through the two first branch pipes 5.

[0025] Both first branch pipes 5 are vertically arranged, and the other end of each first branch pipe 5 is fixedly inserted through the side of the double-sided machine 1. Each end of the two first branch pipes 5 that extends into the double-sided machine 1 is fixedly connected to a suction head 6. By cooperating with the two first branch pipes 5, the gas at the top and bottom of the double-sided machine 1 can be extracted together.

[0026] The filter box 15 is fixedly connected to one side of the double-sided machine 1. Inside the filter box 15 is a filter screen box 14, which is formed by woven metal wire and filled with filter cotton. Gas drawn through the first branch pipe 5 enters the interior of the filter box 15, causing the filter screen box 14 to filter impurities from the gas.

[0027] One end of the air outlet pipe is fixedly connected to the output end of the air pump 3, and the other end of the air outlet pipe is fixedly inserted through the side of the double-sided machine 1. A heating box 16 is installed on the air outlet pipe.

[0028] The exhaust pipe includes a third connecting pipe 17, a fourth connecting pipe 18, and two second branch pipes 9. One end of the third connecting pipe 17 is fixedly connected to the output end of the air pump 3, and the other end is fixedly connected to the air inlet end of the heating box 16. One end of the fourth connecting pipe 18 is fixedly connected to the air outlet end of the heating box 16, and the other end is fixedly connected to the two second branch pipes 9 via water pipe connectors. Both second branch pipes 9 are vertically arranged, and the other ends of both second branch pipes 9 are fixedly inserted through the side of the duplexer 1. This allows steam to be discharged through the two second branch pipes 9 to the top and bottom of the duplexer 1 respectively, resulting in more uniform heating of the cardboard inside the duplexer 1.

[0029] The double-sided machine 1 has two jet tubes 10 fixedly connected from top to bottom inside. The end of the upper second branch pipe 9 extends into the upper jet tube 10, and the end of the lower second branch pipe 9 extends into the other jet tube 10. Each of the two jet tubes 10 has a number of jet holes 11 spaced apart. The second branch pipe 9 delivers steam into the jet tubes 10, and the steam is evenly sprayed into the double-sided machine 1 through the jet holes 11.

[0030] The heating chamber 16 is fixedly connected to one side of the double-sided machine 1. A heating plate 8 is installed inside the heating chamber 16, with several evenly spaced air vents on the heating plate 8 to allow the generated steam to pass through and exit into the fourth connecting pipe 18. Heating wires are laid inside the heating plate 8. These heating wires utilize the heating effect of electric current to convert electrical energy into heat energy; the heating wires are existing products. A water inlet is located on the side of the heating chamber 16. Water is added to the heating chamber 16 through the water inlet to heat the water and generate steam.

[0031] Four fans 12 are evenly fixedly connected to the side of the end of the double-sided machine 1. The fans 12 blow air into the double-sided machine 1, and then blow steam into different parts of the double-sided machine 1.

[0032] The double-facer 1 has a feed inlet at one end, and a blower 12 is fixedly connected to the feed inlet end of the double-facer 1. The double-facer 1 has a discharge outlet at the other end, and a receiving box 2 is fixedly connected to the bottom of the discharge outlet end of the double-facer 1. The cardboard enters the double-facer 1 through the feed inlet and is then discharged through the discharge outlet. The discharged cardboard is collected in the receiving box 2.

[0033] The double-facer 1 has several drive rollers 13 arranged in a straight line, rotating at intervals inside. Each drive roller 13 is located between two air jets 10. This allows the cardboard to move on the drive rollers 13, enabling the air jets 10 to spray steam onto the top and bottom of the cardboard.

[0034] Working principle:

[0035] In use, water is added into the heating chamber 16 through the water inlet. Power is applied to the heating wire, causing the heating plate 8 to heat the water and generate steam.

[0036] The cardboard enters the double-facer 1 through the feed inlet for processing.

[0037] Start the air pump 3 to allow the gas inside the double-sided machine 1 to enter the interior of the first connecting pipe 4 from the ends of the two first branch pipes 5. Then, it enters the filter box 15, where it passes through the filter screen box 14, where the filter cotton filters the gas. The filtered gas then enters the interior of the second connecting pipe 7.

[0038] The gas enters the third connecting pipe 17 and then the heating chamber 16. The heating chamber 16 heats the gas, and the gas and water vapor pass through the vent on the heating plate 8 into the fourth connecting pipe 18, and then into the two second branch pipes 9 respectively. The water vapor and hot gas in the second branch pipes 9 enter the corresponding jet tubes 10, and finally are sprayed into the double-facer 1 through the jet hole 11 to heat the cardboard.

[0039] Start the fan 12 to blow steam to different parts of the double-sided machine 1, so that the cardboard is heated more evenly.

[0040] The steam and gas that are about to cool down inside the double-sided machine 1 will be drawn back into the heating box 16 for reheating, so that the water can be recycled and production costs can be reduced.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steam circulation system for a cardboard double-facer, characterized in that, The machine includes a double-sided machine (1), and steam circulation components are fixedly installed on both sides of the double-sided machine (1). The steam circulation components include an air pump (3), an air inlet pipe and an air outlet pipe. The air pump (3) is fixedly connected to the outer side of the double-sided machine (1). One end of the air inlet pipe is fixedly connected to the input end of the air pump (3), and the other end of the air inlet pipe is fixedly connected through the side of the double-sided machine (1). One end of the air outlet pipe is fixedly connected to the output end of the air pump (3), and the other end of the air outlet pipe is fixedly connected through the side of the double-sided machine (1). A filter box (15) is provided on the air inlet pipe, a heating box (16) is provided on the air outlet pipe, and four fans (12) are evenly fixedly connected to the side of the end of the double-sided machine (1).

2. The steam circulation system for a cardboard double-facer according to claim 1, characterized in that: The air inlet pipe includes a first connecting pipe (4), a second connecting pipe (7), and two first branch pipes (5). One end of the second connecting pipe (7) is fixedly connected to the input end of the air pump (3), and the other end of the second connecting pipe (7) is fixedly connected to the air outlet end of the filter box (15). One end of the first connecting pipe (4) is fixedly connected to the air inlet end of the filter box (15), and the other end of the first connecting pipe (4) is fixedly connected to the two first branch pipes (5) through a water pipe joint. Both first branch pipes (5) are vertically arranged, and the other ends of both first branch pipes (5) are fixedly inserted through the side of the double-sided machine (1).

3. The steam circulation system for a paperboard double-facer according to claim 2, characterized in that: The filter box (15) is fixedly connected to one side of the double-sided machine (1). Inside the filter box (15) is a filter screen box (14), which is woven from metal wire and filled with filter cotton.

4. The steam circulation system for a paperboard double-facer according to claim 1, characterized in that: The air outlet pipe includes a third connecting pipe (17), a fourth connecting pipe (18), and two second branch pipes (9). One end of the third connecting pipe (17) is fixedly connected to the output end of the air pump (3), and the other end of the third connecting pipe (17) is fixedly connected to the air inlet end of the heating box (16). One end of the fourth connecting pipe (18) is fixedly connected to the air outlet end of the heating box (16), and the other end of the fourth connecting pipe (18) is fixedly connected to the two second branch pipes (9) through a water pipe joint. Both second branch pipes (9) are vertically arranged, and the other ends of both second branch pipes (9) are fixedly inserted through the side of the double-sided machine (1).

5. The steam circulation system for a cardboard double-facer according to claim 4, characterized in that: The double-sided machine (1) has two jet tubes (10) fixedly connected from top to bottom inside. The end of the upper second branch pipe (9) extends into the upper jet tube (10), and the end of the lower second branch pipe (9) extends into the other jet tube (10). Both jet tubes (10) are provided with a number of jet holes (11) spaced apart.

6. The steam circulation system for a paperboard double-facer according to claim 4, characterized in that: The heating box (16) is fixedly connected to one side of the double-sided machine (1). The heating box (16) is equipped with a heating plate (8). Several air vents are evenly opened on the heating plate (8). Heating wires are laid inside the heating plate (8). A water inlet is opened on the side of the heating box (16).

7. The steam circulation system for a paperboard double-facer according to claim 1, characterized in that: The double-sided machine (1) has a feed inlet at one end and a discharge outlet at the other end. A blower (12) is fixedly connected to the end of the double-sided machine (1) with the feed inlet, and a receiving box (2) is fixedly connected to the bottom of the end of the double-sided machine (1) with the discharge outlet.

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