Full-automatic paperboard composite production line capable of producing various types of paperboards

Abstract

The utility model discloses a full-automatic paperboard composite production line capable of producing various types of paperboards. The production line comprises a first paper feeding frame, a second paper feeding frame, a first single-face corrugated forming machine, a top paper feeding frame, a honeycomb paper core traction machine, a stretching machine, a third paper feeding frame, a first gluing machine, a lower ironing board conveyor, a fourth paper feeding frame, a second gluing machine and an upper ironing board conveyor. Production of various paperboards such as double-sided corrugated paperboards, double-sided honeycomb paperboards, double-sided corrugated honeycomb paperboards, double-sided corrugated honeycomb paperboards with middle inner surface paper, double-sided double-corrugated honeycomb paperboards, double-sided double-corrugated honeycomb paperboards with middle inner surface paper, single-sided double-corrugated honeycomb paperboards with middle inner surface paper and the like can be realized on the same production line; and the universality is good, the operation is stable and reliable, the operation is convenient, the purchase cost of the machine and the production cost of paperboards can be reduced, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of paperboard production equipment, and more specifically, to a full-automatic paperboard composite production line capable of producing various types of paperboards. Background Art

[0002] like Fig. 27 and Fig.28 As shown, conventional paperboard generally includes double-sided corrugated paperboard and double-sided honeycomb paperboard, wherein the double-sided corrugated paperboard may include face paper 101, corrugated paper core 102 and face paper 103, while the double-sided honeycomb paperboard may include face paper 103, honeycomb paper core 104 and face paper 105. When used, both the double-sided corrugated paperboard and the double-sided honeycomb paperboard have their own advantages. In order to give full play to the advantages of corrugated paperboard and honeycomb paperboard, some double-sided corrugated honeycomb paperboards combining corrugated paperboard and honeycomb paperboard and double-sided corrugated honeycomb paperboards with middle inner face paper have begun to appear on the market. These composite paperboards can improve multiple properties such as compression resistance, heat preservation and load-bearing capacity.

[0003] like Fig.29 As shown, the double-sided corrugated honeycomb paperboard may include a face paper 101, a corrugated paper core 102, a honeycomb paper core 104 and a face paper 105. Fig.30 As shown, the double-sided corrugated honeycomb paperboard with a middle inner face paper may include a face paper 101 , a corrugated paper core 102 , a face paper 103 , a honeycomb paper core 104 and a face paper 105 .

[0004] like Fig.31 As shown, the double-sided double-corrugated honeycomb paperboard may include a face paper 101, a corrugated paper core 102, a honeycomb paper core 104, a corrugated paper core 106 and a face paper 105. Fig.32 As shown, the double-sided double-corrugated honeycomb paperboard with the middle inner face paper may include a face paper 101, a corrugated paper core 102, a face paper 103, a honeycomb paper core 104, a corrugated paper core 106 and a face paper 105. Fig.33 As shown, the single-faced double-corrugated honeycomb paperboard with a middle inner face paper may include a face paper 101 , a corrugated paper core 102 , a face paper 103 , a honeycomb paper core 104 and a corrugated paper core 106 .

[0005] Among them, double-sided corrugated cardboard, double-sided honeycomb cardboard, double-sided corrugated honeycomb cardboard and double-sided corrugated honeycomb cardboard with middle inner paper can all be automatically produced by their respective machines, but each device can only produce one type of cardboard, and it is not possible to accommodate the production of multiple types of cardboard on one machine. Utility Model Content

[0006] The purpose of the utility model is to overcome the above-mentioned defects in the prior art and provide a full-automatic paperboard composite production line capable of producing various types of paperboards.

[0007] To achieve the above-mentioned purpose, the first aspect of the utility model provides a fully automatic paperboard composite production line capable of producing various types of paperboards, including a first upper paper rack for providing a first paper, a second upper paper rack for providing a second paper, a first single-sided corrugated paper forming machine for compositely forming the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into single-sided corrugated paper, a top paper feeder for transporting the single-sided corrugated paper above the production line, a honeycomb paper core traction machine for conveying the honeycomb paper core that has not been unfolded and shaped in the paper core pile to a stretching machine, a stretching machine for unfolding and shaping the honeycomb paper core, and a first single-sided corrugated paper forming machine for compositely forming the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into single-sided corrugated paper, a top paper feeder for transporting the single-sided corrugated paper above the production line, a honeycomb paper core traction machine for conveying the honeycomb paper core that has not been unfolded and shaped in the paper core pile to the stretching machine, and a stretching machine for unfolding and shaped the honeycomb paper core. a third upper paper rack for providing third paper, a first glue coating machine for gluing the lower corrugated surface of the single-sided corrugated paper delivered from the first unloading position of the top paper feeding rack, or gluing the upper surface of the third paper provided by the third upper paper rack, or gluing the lower surface of the honeycomb paper core, a lower ironing plate conveyor for pressing and flattening the single-sided corrugated paper and the third paper when compounding, or pressing and flattening the honeycomb paper core and the third paper when compounding, a fourth upper paper rack for providing fourth paper, and gluing the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack The second glue coating machine is used for gluing or gluing the lower corrugated surface of the single-sided corrugated paper delivered from the top paper feeding rack and the lower surface of the fourth paper provided by the fourth upper paper rack, or gluing the lower surface or both upper and lower surfaces of the fourth paper provided by the fourth upper paper rack, or gluing the lower corrugated surface of the single-sided corrugated paper delivered from the top paper feeding rack and the upper surface of the single-sided honeycomb paper, and is used for pressing and drying the single-sided corrugated paper and the single-sided honeycomb paper when compounding, or pressing and drying the single-sided corrugated paper, the fourth paper and the single-sided honeycomb paper when compounding, or pressing and drying the fourth paper and the single-sided honeycomb paper when compounding. An upper ironing plate conveyor for upper flattening and drying or upper flattening and drying of double-sided corrugated paperboard or double-sided honeycomb paperboard, wherein the first single-sided corrugated forming machine is located between the first upper paper rack and the second upper paper rack, the honeycomb paper core traction machine, the stretching machine, the third upper paper rack, the first gluing machine, the lower ironing plate conveyor, the second gluing machine and the upper ironing plate conveyor are arranged in sequence, the top paper feeding rack is erected above the first single-sided corrugated forming machine, the honeycomb paper core traction machine, the stretching machine, the third upper paper rack, the first gluing machine and the lower ironing plate conveyor through pillars, and the fourth upper paper rack is located between the top paper feeding rack and the lower ironing plate conveyor.

[0008] Preferably, the production line also includes a fifth upper paper rack for providing fifth paper, and a second single-sided corrugated paper forming machine for making the fifth paper provided by the fifth upper paper rack into corrugated paper, and the fifth upper paper rack and the second single-sided corrugated paper forming machine are located on one side of the honeycomb paper core traction machine.

[0009] Preferably, the production line also includes a cooling section conveyor for naturally cooling various cardboards output from the upper ironing plate conveyor, a longitudinal cutter for longitudinally cutting the various cooled cardboards, a cross-cutter and / or a screw machine for transversely cutting the cardboards after longitudinal cutting, and a gantry stacking machine for stacking the finished cardboards after cutting, the cooling section conveyor is installed on the discharge side of the upper ironing plate conveyor, the longitudinal cutter is installed on the discharge side of the cooling section conveyor, and the cross-cutter and / or the screw machine are installed between the longitudinal cutter and the gantry stacking machine.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model has a reasonable structural design and is provided with a first upper paper rack, a second upper paper rack, a first single-sided corrugated forming machine, a top paper feeding rack, a honeycomb paper core traction machine, a stretching machine, a third upper paper rack, a first gluing machine, a lower ironing plate conveyor, a fourth upper paper rack, a second gluing machine and an upper ironing plate conveyor. It can realize the production of various paperboards on the same production line, has good versatility, stable and reliable operation, and is easy to operate. It can reduce the purchase cost of the machine and the production cost of the paperboard and reduce the space occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a fully automatic paperboard composite production line that can produce various types of paperboards;

[0013] Figure 2 It is a schematic diagram of the structure of the first part of the fully automatic paperboard composite production line;

[0014] Figure 3 It is a schematic diagram of the structure of the second part of the fully automatic paperboard composite production line;

[0015] Figure 4 It is a structural diagram of the third part of the fully automatic paperboard composite production line;

[0016] Figure 5 It is a structural diagram of the fourth part of the fully automatic paperboard composite production line;

[0017] Figure 6 It is a structural diagram of the fifth part of the fully automatic paperboard composite production line;

[0018] Figure 7 It is a schematic diagram of the structure of four upper paper racks;

[0019] Figure 8 It is a schematic diagram of the structure of the first single-face corrugated board forming machine;

[0020] Fig. 9 It is a structural schematic diagram of the traction device on single-face corrugated paper;

[0021] Fig.10 It is a structural schematic diagram of a honeycomb paper core traction machine;

[0022] Fig.11 It is a schematic diagram of the structure of the stretching machine;

[0023] Fig.12 It is a structural schematic diagram of the first glue coating machine;

[0024] Fig.13 It is a structural diagram of the lower ironing plate conveyor;

[0025] Fig.14 It is a structural diagram of the front section of the lower ironing plate conveyor;

[0026] Fig.15 It is a structural schematic diagram of the rear section of the lower ironing plate conveyor;

[0027] Fig.16 is a structural schematic diagram of the second glue coating machine;

[0028] Fig.17 It is a structural diagram of the upper ironing plate conveyor;

[0029] Fig.18 It is a structural diagram of the front section of the upper ironing plate conveyor;

[0030] Fig.19 It is a structural diagram of the rear section of the upper ironing plate conveyor;

[0031] Fig. 20 It is a schematic diagram of the structure of the second fully automatic paperboard composite production line that can produce various types of paperboards;

[0032] Fig.21 It is a structural diagram of the back-end mechanism of the fully automatic paperboard composite production line;

[0033] Fig. 22 It is a schematic diagram of the structure of the cooling section conveyor;

[0034] Fig.23 It is a schematic diagram of the structure of the slitting machine;

[0035] Fig.24 It is a schematic diagram of the structure of the cross-cutting machine;

[0036] Fig.25 It is a schematic diagram of the structure of the screw machine;

[0037] Fig.26 It is a schematic diagram of the structure of the gantry stacker;

[0038] Fig. 27 It is a schematic diagram of the structure of double-sided corrugated cardboard;

[0039] Fig.28 It is a structural diagram of a double-sided honeycomb paperboard;

[0040] Fig.29 It is a structural diagram of double-sided corrugated honeycomb paperboard;

[0041] Fig.30 It is a schematic diagram of the structure of a double-sided corrugated honeycomb paperboard with a middle inner paper;

[0042] Fig.31 It is a structural diagram of a double-sided double-corrugated honeycomb paperboard and a double-sided corrugated honeycomb paperboard;

[0043] Fig.32 It is a structural diagram of a double-sided double-corrugated honeycomb paperboard with a middle inner paper;

[0044] Fig.33 It is a structural schematic diagram of a single-sided double-corrugated honeycomb paperboard with a middle inner paper and a double-sided corrugated honeycomb paperboard. DETAILED DESCRIPTION

[0045] Embodiment 1

[0046] Please refer to Figures 1 to 6 , Embodiment 1 of the present invention provides a fully automatic paperboard composite production line that can produce various types of paperboards, including a first upper paper rack 1, a second upper paper rack 2, a first single-sided corrugated forming machine 3, a top paper feeding rack 4, a honeycomb paper core tractor 5, a stretching machine 6, a third upper paper rack 7, a first gluing machine 8, a lower ironing plate conveyor 9, a fourth upper paper rack 10, a second gluing machine 11 and an upper ironing plate conveyor 12, the first upper paper rack 1, the first single-sided corrugated forming machine 3, the second upper paper rack 2, the honeycomb paper core tractor 5, the stretching machine 6, the third upper paper rack 7, the first gluing machine 8, the lower ironing plate conveyor 9, the second gluing machine 11 and the upper ironing plate conveyor 12 are arranged in sequence from right to left, the top paper feeding rack 4 is erected above the first single-sided corrugated forming machine 3, the honeycomb paper core tractor 5, the stretching machine 6, the third upper paper rack 7, the first gluing machine 8 and the lower ironing plate conveyor 9 through pillars, and the fourth upper paper rack 10 is located between the top paper feeding rack 4 and the lower ironing plate conveyor 9.

[0047] The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.

[0048] like Figure 8As shown, the first single-facer corrugated paper forming machine includes a single-facer frame 31, a first single-facer preheating roller 32 for preheating the first paper provided by the first upper paper rack, a single-facer composite pressing roller 33 for composite the first paper with the first corrugated paper to form a single-faced corrugated paper, a second single-facer preheating roller 34 for preheating the second paper provided by the second upper paper rack, a first corrugated forming roller 35 and a second corrugated forming roller 36 for forming the first corrugated paper from the second paper, and a single-facer for gluing the surface of the first corrugated paper. The single-sided gluing device 37, the first single-sided machine preheating roller 32, the single-sided composite pressing roller 33, the second single-sided machine preheating roller 34, the first corrugated forming roller 35, the second corrugated forming roller 36 and the single-sided gluing device 37 are respectively installed on the single-sided machine frame 31, the first single-sided machine preheating roller 32, the single-sided composite pressing roller 33, the second corrugated forming roller 36, the first corrugated forming roller 35 and the second single-sided machine preheating roller 34 are arranged from bottom to top, and the single-sided gluing roller of the single-sided gluing device 37 is located below the second corrugated forming roller 36. The single-sided gluing roller 371 of the single-sided gluing device 37 can apply glue to the surface of the corrugated paper.

[0049] like Figures 2 to 5 As shown, the top paper feeder 4 may include a top frame 41, a single-sided corrugated paper upper traction device 42 for pulling the single-sided corrugated paper made by the first single-sided corrugated paper forming machine 3 upward to the top frame 41, and a paper feeder guide roller 43 for guiding the single-sided corrugated paper located on the top frame 41. The single-sided corrugated paper upper traction device 42 is installed at one end of the top frame 41 and is located above the top of the first single-sided corrugated paper forming machine 3, and the paper feeder guide roller 43 is installed on the top frame 41.

[0050] like Fig. 9 The single-faced corrugated paper upper traction device 42 may include components such as a traction wheel and a traction wheel driving motor. The traction wheel driving motor can drive the traction wheel to rotate, thereby conveying the single-faced corrugated paper upward.

[0051] like Fig.10 As shown, the honeycomb paper core traction machine 5 may include a paper core traction machine frame 51, a paper core traction driving roller 52 for driving the honeycomb paper core in the paper core pile located on its feed side to be transported toward the stretching machine 6, and a paper core traction driving device 53 (such as a motor + sprocket + chain) for driving the paper core traction driving roller 52 to rotate. The paper core traction driving roller 52 and the paper core traction driving device 53 are both installed on the paper core traction machine frame 51, and the paper core traction driving device 53 is connected to the paper core traction driving roller 52 in a transmission manner. The paper core traction driving device 53 can drive the paper core traction driving roller 52 to rotate, thereby transporting the honeycomb paper core toward the stretching machine 6.

[0052] like Fig.11As shown, the stretching machine 6 can be configured as a honeycomb paper core stretching machine with a heating box 61 on the top. After the honeycomb paper core enters the stretching machine 6, the honeycomb paper core can be stretched and unfolded, and then the heating box 61 can heat-set the honeycomb paper core. Among them, the stretching machine 6 is a common device for preparing honeycomb paperboard.

[0053] like Fig.12 As shown, the first glue coating machine 8 may include a first glue coating machine frame 81, a first glue coating paper guide roller 82 for guiding the single-faced corrugated paper delivered from the first unloading position of the top paper feeding frame, a first glue coating roller 83 for coating the lower corrugated surface of the single-faced corrugated paper with glue, a first glue coating roller driving device 84 (such as a motor + sprocket + chain) for driving the first glue coating roller 83 to rotate, a second glue coating paper guide roller 85 for guiding the third paper provided by the third upper paper frame, a first glue coating / traction roller 86 for coating the upper surface of the third paper provided by the third upper paper frame with glue or only traction the third paper, and a second glue coating roller 87 for coating the lower surface of the honeycomb paper core with glue or only traction the honeycomb paper core. The gluing / traction roller 87, the first gluing traction roller driving device 88 (such as a motor + sprocket + chain) used to drive the first gluing / traction roller 86 and the second gluing / traction roller 87 to rotate, the first gluing paper guide roller 82, the first gluing roller 83 and the first gluing roller driving device 84 are respectively installed on the upper end of the first gluing frame 81, the first gluing roller driving device 84 is connected to the first gluing roller 83 in transmission, the second gluing paper guide roller 85, the first gluing / traction roller 86, the second gluing / traction roller 87 and the first gluing traction roller driving device 88 are respectively installed on the lower end of the first gluing frame 81, and the first gluing traction roller driving device 88 is connected to the first gluing / traction roller 86 and the second gluing / traction roller 87 in transmission.

[0054] During operation, the single-sided corrugated paper can pass through the upper end of the first gluing machine frame, the honeycomb paper core can pass through the middle position of the first gluing machine frame, and the third paper can pass through the lower end of the first gluing machine frame. When preparing double-sided corrugated paperboard, the relevant machines for preparing the honeycomb paper core are all stopped, and the honeycomb paper core will not pass through the first gluing machine 8.

[0055] When preparing single-sided honeycomb paper, the single-sided corrugated paper will not be fed down from the first unloading position of the top paper feed rack 4 and pass through the first glue coating machine 8. In addition, when the first glue coating / traction roller 86 is gluing the upper surface of the third paper, the second glue coating / traction roller 87 will not glue the lower surface of the honeycomb paper core, but only perform traction. Similarly, when the second glue coating / traction roller 87 is gluing the lower surface of the honeycomb paper core, the first glue coating / traction roller 86 will not glue the upper surface of the third paper, but only perform traction.

[0056] like Fig.13 , Fig.14 and Fig.15As shown, the lower ironing plate conveyor 9 may include a lower ironing plate conveyor frame 91, a first upper conveyor belt 92 for driving the single-faced corrugated paper and the third paper to move or driving the honeycomb paper core and the third paper to move, an upper elastic pressure wheel 93 for pressing down the lower end belt body of the first upper conveyor belt 92, a lower ironing plate 94 for heating and drying the single-faced corrugated paper and the third paper or heating and drying the honeycomb paper core and the third paper, a first lower conveyor belt 95 for driving the single-faced corrugated paper and the third paper to move or driving the honeycomb paper core and the third paper to move, and the lower ironing plate 94 is horizontally installed in the lower end area of ​​the front section of the lower ironing plate conveyor frame 91. In the embodiment of the present invention, the first lower conveyor belt 95 is installed in the lower end area of ​​the rear section of the lower ironing plate conveyor frame 91, the first upper conveyor belt 92 is installed at the upper end of the lower ironing plate conveyor frame 91 and is located above the lower ironing plate 94 and the first lower conveyor belt 95, the first upper conveyor belt 92 and the first lower conveyor belt 95 are respectively driven by their own conveyor belt motors to perform circular motion, a plurality of upper elastic pressure wheels 93 are provided and horizontally arranged and installed in the front section area of ​​the lower ironing plate conveyor frame 91, all upper elastic pressure wheels 93 are located inside the first upper conveyor belt 92 and are pressed and contacted with the lower end belt body of the first upper conveyor belt 92, and the lower ironing plate 94 is located below the upper elastic pressure wheel 93.

[0057] Under the downward pressure of the upper elastic pressure wheel 93, the first upper conveyor belt 92 can press down the double-sided corrugated cardboard or single-sided honeycomb paper on the lower ironing plate 94 so that the cardboard is close to the lower ironing plate 94, and the lower ironing plate 94 is used to heat and dry the glue connection between the lower corrugated surface of the single-sided corrugated paper and the third paper or the glue connection between the bottom surface of the honeycomb paper core and the third paper.

[0058] Among them, the lower ironing plate conveyor 9 is set to flatten and dry the lower end of the cardboard, which is beneficial to accelerate the curing of the glue and can reduce the moisture in the cardboard. At the same time, it can improve the flatness of the surface paper at the bottom of the cardboard and avoid wrinkles in the surface paper.

[0059] like Fig.16As shown, the second glue coating machine 11 may include a second glue coating machine frame 111, a third glue coating paper guide roller 112 for guiding the single-sided corrugated paper delivered from the second unloading position of the top paper feeding frame, a second glue coating roller 113 for gluing the lower corrugated surface of the single-sided corrugated paper, a fourth glue coating paper guide roller 114 for guiding the fourth paper provided by the fourth upper paper frame, a third glue coating / traction roller 115 for gluing the lower surface of the fourth paper provided by the fourth upper paper frame or only pulling the fourth paper, a fourth glue coating / traction roller 116 for gluing the upper surface of the single-sided honeycomb paper or only pulling the single-sided honeycomb paper, and driving the second glue coating roller 113, a second glue coating roller driving device 117 (such as a motor + sprocket + chain) for rotating the third glue coating / traction roller 115 and the fourth glue coating / traction roller 116, the third glue coating paper guide roller 112, the second glue coating roller 113, the fourth glue coating paper guide roller 114, the third glue coating / traction roller 115, the fourth glue coating / traction roller 116 and the second glue coating roller driving device 117 are respectively installed on the second glue coating frame 111, the third glue coating / traction roller 115 is located between the second glue coating roller 113 and the fourth glue coating / traction roller 116, and the second glue coating roller driving device 117 is respectively connected to the second glue coating roller 113, the third glue coating / traction roller 115 and the fourth glue coating / traction roller 116.

[0060] When preparing double-sided honeycomb paperboard, the relevant machines for preparing single-sided corrugated paper can be stopped, and the single-sided corrugated paper can be skipped through the second gluing machine.

[0061] When preparing double-sided corrugated honeycomb paperboard, the fourth paper loading rack 10 can stop outputting the fourth paper, and the fourth paper can not pass through the second glue coating machine. In addition, when the second glue coating roller 113 is gluing the lower corrugated surface of the single-sided corrugated paper, the fourth glue coating / traction roller 116 does not gluing the upper surface of the single-sided honeycomb paper, but only performs traction.

[0062] When preparing double-sided honeycomb paperboard and double-sided corrugated honeycomb paperboard with middle inner paper, when the third glue coating / traction roller 115 glues the lower surface of the fourth paper, the fourth glue coating / traction roller 116 does not glue the upper surface of the single-sided honeycomb paper, but only performs traction. Similarly, when the fourth glue coating / traction roller 116 glues the upper surface of the single-sided honeycomb paper, the third glue coating / traction roller 115 does not glue the lower surface of the fourth paper, but only performs traction.

[0063] like Fig.17 , Fig.18 and Fig.19As shown, the upper ironing plate conveyor 12 may include an upper ironing plate conveyor frame 121, a second lower conveyor belt 122 for driving the single-sided corrugated paper and the single-sided honeycomb paper to move, or driving the single-sided corrugated paper and the fourth paper and the single-sided honeycomb paper to move, or driving the double-sided corrugated paper or the double-sided honeycomb paper to move, an upper ironing plate 123 for heating and drying the single-sided corrugated paper and the single-sided honeycomb paper, or heating and drying the single-sided corrugated paper and the fourth paper and the single-sided honeycomb paper, or heating and drying the double-sided corrugated paper or the double-sided honeycomb paper, and driving the single-sided corrugated paper and the fourth paper to move. The second upper conveyor belt 124 is used to move the single-sided corrugated paper and the single-sided honeycomb paper, or to drive the single-sided corrugated paper and the fourth paper and the single-sided honeycomb paper to move, or to drive the double-sided corrugated paperboard or the double-sided honeycomb paperboard to move. The second lower conveyor belt 122 is installed at the lower end of the upper ironing plate conveyor frame 121, the upper ironing plate 123 is installed in the front upper end area of ​​the upper ironing plate conveyor frame 121, and the second upper conveyor belt 124 is installed in the front lower end area of ​​the upper ironing plate conveyor frame 121. The upper ironing plate 123 and the second upper conveyor belt 124 are both located above the second upper conveyor belt 124. The second lower conveyor belt 122 and the second upper conveyor belt 124 can be driven by their respective conveyor belt motors to perform circular motion. Preferably, the upper ironing plate 123 can be driven up and down by a lifting device such as a cylinder and a motor to facilitate the processing of paperboards of different thicknesses.

[0064] When the cardboard is transported to the upper ironing plate conveyor 12, the second lower conveyor belt 122 transports the cardboard to the left, and the upper ironing plate 123 is close to the top of the cardboard. The upper ironing plate 123 can flatten and heat and dry the upper end of the cardboard (i.e., the glue connection between the single-sided corrugated paper and the single-sided honeycomb paper, the glue connection between the single-sided corrugated paper and the fourth paper and the single-sided honeycomb paper, the glue connection between the fourth paper and the single-sided honeycomb paper, or the upper end of the double-sided corrugated paper).

[0065] Among them, the upper ironing plate conveyor 12 is set to flatten and dry the upper end of the cardboard, which is beneficial to accelerate the curing of the glue and can reduce the moisture in the cardboard. At the same time, it can improve the flatness of the surface paper at the bottom of the cardboard and avoid wrinkles in the surface paper.

[0066] When working, the method for producing paperboard by the fully automatic paperboard composite production line includes the following steps:

[0067] When preparing double-sided corrugated paperboard, the first single-sided corrugated forming machine 3 composites the first paper provided by the first upper paper rack 1 and the second paper provided by the second upper paper rack 2 into single-sided corrugated paper, and then transports the single-sided corrugated paper through the top paper feeding rack 4, and then the single-sided corrugated paper transported from the first unloading position of the top paper feeding rack 4 enters the first glue coating machine 8, and the first glue coating machine 8 glues the lower corrugated surface of the single-sided corrugated paper or the upper surface of the third paper. After gluing, the single-sided corrugated paper and the third paper are composited in the lower ironing plate conveyor 9, and the lower ironing plate conveyor 9 presses and dries the single-sided corrugated paper and the third paper, thereby forming a double-sided corrugated paperboard (see Fig. 27 );

[0068] When preparing double-sided corrugated honeycomb paperboard, the first single-sided corrugated forming machine 3 composites the first paper provided by the first upper paper rack 1 and the second paper provided by the second upper paper rack 2 into single-sided corrugated paper, and then transports the single-sided corrugated paper through the top paper feeding rack 4. At the same time, the honeycomb paper core traction machine 5 transports the unexpanded and shaped honeycomb paper core in the paper core pile on one side thereof to the stretching machine 6, and the stretching machine 6 expands and shapes the honeycomb paper core, and then the honeycomb paper core passes through the first glue coating machine 8, and the first glue coating machine 8 glues the upper surface of the third paper provided by the third upper paper rack 7 or the lower surface of the honeycomb paper core, and then the honeycomb paper core passes through the first glue coating machine 8. The honeycomb paper core and the third paper are compounded in the lower ironing plate conveyor 9, and the lower ironing plate conveyor 9 presses and dries the honeycomb paper core and the third paper downward, thereby forming a single-sided honeycomb paper. Then, the single-sided honeycomb paper output from the lower ironing plate conveyor 9 passes through the second glue coating machine 11, and the second glue coating machine 11 glues the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack 4. Subsequently, the single-sided corrugated paper and the single-sided honeycomb paper are compounded in the upper ironing plate conveyor 12, and the upper ironing plate conveyor 12 presses and dries the single-sided corrugated paper and the single-sided honeycomb paper upward, thereby forming a double-sided corrugated honeycomb paperboard (see Fig.29 );

[0069] When preparing a double-sided corrugated honeycomb paperboard with a middle inner paper, the first single-sided corrugated forming machine 3 composites the first paper provided by the first upper paper rack 1 and the second paper provided by the second upper paper rack 2 into a single-sided corrugated paper, and then the single-sided corrugated paper is transported through the top paper feeding rack 4. At the same time, the honeycomb paper core tractor 5 conveys the unexpanded and shaped honeycomb paper core in the paper core pile on one side thereof to the stretching machine 6, and the stretching machine 6 expands and shapes the honeycomb paper core, and then the honeycomb paper core passes through the first glue coating machine 8, and the first glue coating machine 8 glues the upper surface of the third paper provided by the third upper paper rack 7 or the lower surface of the honeycomb paper core, and then the honeycomb paper core and the third paper are composited in the lower ironing plate conveyor 9, and The lower ironing plate conveyor 9 presses down and dries the honeycomb paper core and the third paper, thereby forming a single-sided honeycomb paper. Then, the single-sided honeycomb paper output from the lower ironing plate conveyor 9 passes through the second glue coating machine 11, and the second glue coating machine 11 glues the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack 4 and the lower surface of the fourth paper provided by the fourth upper paper rack 10 or the upper surface of the single-sided honeycomb paper. Subsequently, the single-sided corrugated paper, the fourth paper and the single-sided honeycomb paper are compounded in the upper ironing plate conveyor 12, and the upper ironing plate conveyor 12 presses up and dries the single-sided corrugated paper, the fourth paper and the single-sided honeycomb paper, thereby forming a double-sided corrugated honeycomb paperboard with an intermediate inner paper (see Fig.30 );

[0070] When preparing double-sided honeycomb paperboard, the honeycomb paper core tractor 5 conveys the un-expanded and shaped honeycomb paper core in the paper core pile located on one side thereof to the stretching machine 6, and the stretching machine 6 expands and shapes the honeycomb paper core, and then the honeycomb paper core passes through the first gluing machine 8, and the first gluing machine 8 glues the upper surface of the third paper provided by the third upper paper rack 7 or the lower surface of the honeycomb paper core, and then the honeycomb paper core and the third paper are compounded in the lower ironing plate conveyor 9, and the lower ironing plate conveyor 9 presses and dries the honeycomb paper core and the third paper downward, thereby forming a single-sided honeycomb paper, and then the single-sided honeycomb paper output from the lower ironing plate conveyor 9 passes through the second gluing machine 11, and the second gluing machine 11 glues the lower surface of the fourth paper provided by the fourth upper paper rack 10 or the upper surface of the single-sided honeycomb paper, and subsequently, the fourth paper and the single-sided honeycomb paper are compounded in the upper ironing plate conveyor 12, and the upper ironing plate conveyor 12 presses and dries the fourth paper and the single-sided honeycomb paper upward, thereby forming a double-sided honeycomb paperboard (see Fig.28 ).

[0071] Embodiment 2

[0072] The second embodiment of the present utility model provides a fully automatic paperboard composite production line capable of producing various types of paperboards, which also includes a first paperboard rack 1, a second paperboard rack 2, a first single-faced corrugated paper forming machine 3, a top paper feeder 4, a honeycomb paper core traction machine 5, a stretching machine 6, a third paperboard rack 7, a first glue coating machine 8, a lower ironing plate conveyor 9, a fourth paperboard rack 10, a second glue coating machine 11, and an upper ironing plate conveyor 12. On the basis of the above-mentioned first embodiment, the production line may also include a fifth paperboard rack for providing a fifth paper, and a second single-faced corrugated paper forming machine for making the fifth paper provided by the fifth paperboard rack into corrugated paper, and the fifth paperboard rack and the second single-faced corrugated paper forming machine may be located on one side of the honeycomb paper core traction machine. The structure of the second single-faced corrugated paper forming machine may be the same as that of the first single-faced corrugated paper forming machine.

[0073] When working, the method for producing paperboard by the fully automatic paperboard composite production line may further include the following steps:

[0074] When preparing double-sided double-corrugated honeycomb paperboard, the first single-sided corrugated forming machine composites the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into single-sided corrugated paper, and then the single-sided corrugated paper is transported through the top paper feeding rack. At the same time, the honeycomb paper core traction machine transports the unexpanded and shaped honeycomb paper core in the paper core pile located on one side thereof to the stretching machine, and the stretching machine unfolds and shapes the honeycomb paper core, and the second corrugated paper output from the second single-sided corrugated forming machine is also transported to the stretching machine and is located below the honeycomb paper core, and then the honeycomb paper core and the second corrugated paper pass through the first gluing machine, and the first gluing machine glues the upper surface of the third paper provided by the third upper paper rack and the lower surface or The upper and lower surfaces of the second corrugated paper are coated with glue, and then the honeycomb paper core, the second corrugated paper and the third paper are compounded in the lower ironing plate conveyor, and the lower ironing plate conveyor presses and dries the honeycomb paper core, the second corrugated paper and the third paper downward to form a single-sided corrugated honeycomb paper. After that, the single-sided corrugated honeycomb paper output from the lower ironing plate conveyor passes through the second glue coating machine, and the second glue coating machine glues the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack. Subsequently, the single-sided corrugated paper and the single-sided corrugated honeycomb paper are compounded in the upper ironing plate conveyor, and the upper ironing plate conveyor presses and dries the single-sided corrugated paper and the single-sided corrugated honeycomb paper upward to form a double-sided double-corrugated honeycomb paperboard (see Fig.31 );

[0075] When preparing a double-sided double-corrugated honeycomb paperboard with a middle inner paper, the first single-sided corrugated forming machine composites the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into single-sided corrugated paper, and then the single-sided corrugated paper is transported through the top paper feeding rack, and at the same time, the honeycomb paper core traction machine conveys the unexpanded and shaped honeycomb paper core in the paper core pile located on one side thereof to the stretching machine, and the stretching machine unfolds and shapes the honeycomb paper core, and the second corrugated output from the second single-sided corrugated forming machine is also conveyed to the stretching machine and is located below the honeycomb paper core, and then the honeycomb paper core and the second corrugated pass through the first gluing machine, and the first gluing machine glues the upper surface of the third paper provided by the third upper paper rack and the lower surface of the honeycomb paper core or the second corrugated paper. The upper and lower surfaces of the flutes are coated with glue, and then the honeycomb paper core, the second flute and the third paper are compounded in the lower ironing plate conveyor, and the lower ironing plate conveyor presses and dries the honeycomb paper core, the second flute and the third paper downward, thereby forming a single-sided corrugated honeycomb paper, and then the single-sided corrugated honeycomb paper output from the lower ironing plate conveyor passes through the second glue coating machine, and the second glue coating machine glues the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack, and subsequently, the single-sided corrugated paper, the fourth paper and the single-sided corrugated honeycomb paper are compounded in the upper ironing plate conveyor, and the upper ironing plate conveyor presses and dries the single-sided corrugated paper, the fourth paper and the single-sided corrugated honeycomb paper upward, thereby forming a double-sided double-corrugated honeycomb paperboard with an intermediate inner paper (see Fig.32 );

[0076] When preparing a single-sided double-corrugated honeycomb paperboard with a middle inner paper, the first single-sided corrugated forming machine composites the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into a single-sided corrugated paper, and then the single-sided corrugated paper is transported through the top paper feeding rack. At the same time, the honeycomb paper core traction machine transports the unexpanded and shaped honeycomb paper core in the paper core pile located on one side thereof to the stretching machine, and the stretching machine unfolds and shapes the honeycomb paper core, and the second corrugated paper outputted from the second single-sided corrugated forming machine is also transported to the stretching machine and is located below the honeycomb paper core, and then the honeycomb paper core and the second corrugated paper pass through the first glue coating machine, and the first glue coating machine coats the lower surface of the honeycomb paper core or the second corrugated paper. The upper surface of the flute is coated with glue, and then the honeycomb paper core and the second flute are compounded in the lower ironing plate conveyor, and the lower ironing plate conveyor presses down and dries the honeycomb paper core and the second flute to form corrugated honeycomb paper. After that, the corrugated honeycomb paper output from the lower ironing plate conveyor passes through the second glue coating machine, and the second glue coating machine glues the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack. Subsequently, the single-sided corrugated paper, the fourth paper and the corrugated honeycomb paper are compounded in the upper ironing plate conveyor, and the upper ironing plate conveyor presses up and dries the single-sided corrugated paper, the fourth paper and the corrugated honeycomb paper to form a single-sided double-corrugated honeycomb paperboard with an intermediate inner paper (see Fig.33 ).

[0077] Embodiment 3

[0078] Please refer to Fig. 20 and Fig.21 The third embodiment of the present invention provides a fully automatic paperboard composite production line capable of producing various types of paperboards, which also includes a first paperboard rack 1, a second paperboard rack 2, a first single-face corrugated forming machine 3, a top paperboard rack 4, a honeycomb paper core traction machine 5, a stretching machine 6, a third paperboard rack 7, a first glue coating machine 8, a lower ironing plate conveyor 9, a fourth paperboard rack 10, a second glue coating machine 11 and an upper ironing plate conveyor 12. Based on the first or second embodiment, the production line can also include a plurality of paperboards for output from the upper ironing plate conveyor 12. The cooling section conveyor 13 for natural cooling is now provided, a longitudinal cutting machine 14 is used for longitudinally cutting various cooled cardboards, a cross-cutting machine 15 and / or a spiral machine 16 are used for transversely cutting the cardboards after longitudinal cutting, and a gantry stacking machine 17 is used for stacking the finished cardboards after cutting. The cooling section conveyor 13 is installed on the discharge side of the upper ironing plate conveyor 12, the longitudinal cutting machine 14 is installed on the discharge side of the cooling section conveyor 13, and the cross-cutting machine 15 and / or the spiral machine 16 are installed between the longitudinal cutting machine 14 and the gantry stacking machine 17.

[0079] like Fig. 22 As shown, the cooling section conveyor 13 can be any conveyor on the market (such as a roller conveyor or a belt conveyor), as long as the cardboard can be naturally cooled at room temperature during the conveying process.

[0080] Better, such as Fig.23 As shown, the slitting machine 14 can be a computer slitting machine of model FY-C1-F. Fig.25 As shown, the screw machine 16 can be a computer screw machine of model NC-120-F. Fig.26 As shown, the gantry stacker 17 can be a large gantry stacker of model DM-DLM-F. When working, the cross-cutting machine 15 and the spiral machine 16 can select one pair to cut the cardboard horizontally. The cross-cutting machine 15 can be any cross-cutting machine on the market that can cut the cardboard horizontally.

[0081] After adding the cooling section conveyor 13, the longitudinal cutting machine 14, the cross-cutting machine 15 or the spiral machine 16, and the gantry stacking machine 17, the method for producing paperboards by the fully automatic paperboard composite production line may further include the following steps:

[0082] The various cardboards output from the upper ironing plate conveyor 12 are transported and naturally cooled during transportation by the cooling section conveyor 13. Then, the longitudinal cutting machine 14 performs longitudinal cutting on the various cooled cardboards. The cross-cutting machine 15 or the spiral machine 16 performs transverse cutting on the longitudinally cut cardboards, so that the cardboards are cut into preset sizes. Finally, the gantry stacking machine 17 stacks the finished cardboards after cutting.

[0083] To sum up, the utility model has a reasonable structural design, can realize the production of various cardboards on the same production line, has good versatility, stable and reliable operation, is easy to operate, can reduce the purchase cost of the machine and the production cost of the cardboard, and reduce the space occupied.

Claims

1. A fully automatic cardboard composite production line capable of producing various types of cardboard, characterized in that: The invention comprises a first upper paper rack for providing a first paper, a second upper paper rack for providing a second paper, a first single-sided corrugated forming machine for compounding the first paper provided by the first upper paper rack and the second paper provided by the second upper paper rack into a single-sided corrugated paper, a top paper feeding rack for transporting the single-sided corrugated paper above the production line, a honeycomb paper core traction machine for conveying the honeycomb paper core that has not been unfolded and shaped in the paper core pile to the stretching machine, a stretching machine for unfolding and shaping the honeycomb paper core, a third upper paper rack for providing a third paper, and a first single-sided corrugated forming machine for conveying the single-sided corrugated paper from the first unloading position of the top paper feeding rack. a first glue coating machine for gluing the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack, or gluing the upper surface of the third paper provided by the third upper paper feeding rack, or gluing the lower surface of the honeycomb paper core; a lower ironing plate conveyor for pressing and flattening the single-sided corrugated paper and the third paper when compounded, or pressing and flattening the honeycomb paper core and the third paper when compounded; a fourth upper paper feeding rack for providing the fourth paper, and gluing the lower corrugated surface of the single-sided corrugated paper delivered from the second unloading position of the top paper feeding rack, or gluing the lower corrugated surface of the single-sided corrugated paper delivered from the top paper feeding rack; The second glue coating machine is used for coating both the lower corrugated surface and the lower surface of the fourth paper provided by the fourth upper paper rack with glue, or coating the lower surface or both the upper and lower surfaces of the fourth paper provided by the fourth upper paper rack with glue, or coating both the lower corrugated surface of the single-sided corrugated paper and the upper surface of the single-sided honeycomb paper delivered from the top paper feeding rack with glue, and is used for pressing and drying the single-sided corrugated paper and the single-sided honeycomb paper during compounding, or pressing and drying the single-sided corrugated paper, the fourth paper and the single-sided honeycomb paper during compounding, or pressing and drying the fourth paper and the single-sided honeycomb paper during compounding, or The invention relates to an upper ironing plate conveyor for flattening and drying single-sided corrugated cardboard or double-sided honeycomb cardboard, the first single-sided corrugated forming machine is located between the first upper paper rack and the second upper paper rack, the honeycomb paper core traction machine, the stretching machine, the third upper paper rack, the first gluing machine, the lower ironing plate conveyor, the second gluing machine and the upper ironing plate conveyor are arranged in sequence, the top paper feeding rack is erected above the first single-sided corrugated forming machine, the honeycomb paper core traction machine, the stretching machine, the third upper paper rack, the first gluing machine and the lower ironing plate conveyor through pillars, and the fourth upper paper rack is located between the top paper feeding rack and the lower ironing plate conveyor.

2. The fully automatic cardboard composite production line capable of producing various types of cardboards according to claim 1 is characterized in that: The first single-sided corrugated paper forming machine includes a single-sided machine frame, a first single-sided machine preheating roller for preheating the first paper provided by the first upper paper rack, a single-sided composite pressing roller for composite the first paper with the first corrugated paper to form a single-sided corrugated paper, a second single-sided machine preheating roller for preheating the second paper provided by the second upper paper rack, a first corrugated forming roller and a second corrugated forming roller for forming the second paper into the first corrugated paper, and a single-sided gluing device for gluing the surface of the first corrugated paper, the first single-sided machine preheating roller, the single-sided composite pressing roller, the second single-sided machine preheating roller, the first corrugated forming roller, the second corrugated forming roller and the single-sided gluing device are respectively installed on the single-sided machine frame, the first single-sided machine preheating roller, the single-sided composite pressing roller, the second corrugated forming roller, the first corrugated forming roller and the second single-sided machine preheating roller are arranged from bottom to top, and the single-sided gluing roller of the single-sided gluing device is located below the second corrugated forming roller.

3. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1 is characterized in that: The top paper feeding rack includes a top frame, a single-sided corrugated upper traction device for pulling the single-sided corrugated paper made by the first single-sided corrugated forming machine upward to the top frame, and a paper feeding rack guide roller for guiding the single-sided corrugated paper located on the top frame, the single-sided corrugated upper traction device is installed at one end of the top frame and is located above the top of the first single-sided corrugated forming machine, and the paper feeding rack guide roller is installed on the top frame.

4. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1 is characterized in that: The honeycomb paper core traction machine comprises a paper core traction machine frame, a paper core traction driving roller for driving the honeycomb paper core in the paper core pile located at the feeding side thereof to be transported toward the stretching machine, and a paper core traction driving device for driving the paper core traction driving roller to rotate, the paper core traction driving roller and the paper core traction driving device are both installed on the paper core traction machine frame, and the paper core traction driving device is drivingly connected to the paper core traction driving roller; The stretching machine is configured as a honeycomb paper core stretching machine with a heating box on the top.

5. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1 is characterized in that: The first glue coating machine includes a first glue coating frame, a first glue coating paper guide roller for guiding the single-faced corrugated paper delivered from the first unloading position of the top paper feeding frame, a first glue coating roller for coating the lower corrugated surface of the single-faced corrugated paper with glue, a first glue coating roller driving device for driving the first glue coating roller to rotate, a second glue coating paper guide roller for guiding the third paper provided by the third upper paper frame, a first glue coating / traction roller for coating the upper surface of the third paper provided by the third upper paper frame with glue or only traction the third paper, and a first glue coating / traction roller for coating the lower surface of the honeycomb paper core with glue or only traction the honeycomb paper core. The traction second glue coating / traction roller is used to drive the first glue coating / traction roller and the second glue coating / traction roller to rotate. The first glue coating paper guide roller, the first glue coating roller and the first glue coating roller driving device are respectively installed on the upper end of the first glue coating frame, and the first glue coating roller driving device is connected to the first glue coating roller in driving connection. The second glue coating paper guide roller, the first glue coating / traction roller, the second glue coating / traction roller and the first glue coating traction roller driving device are respectively installed on the lower end of the first glue coating frame, and the first glue coating traction roller driving device is connected to the first glue coating / traction roller and the second glue coating / traction roller in driving connection.

6. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1 is characterized in that: The second glue coating machine includes a second glue coating machine frame, a third glue coating paper guide roller for guiding the single-sided corrugated paper delivered from the second unloading position of the top paper feeding frame, a second glue coating roller for gluing the lower corrugated surface of the single-sided corrugated paper, a fourth glue coating paper guide roller for guiding the fourth paper provided by the fourth upper paper frame, a third glue coating / traction roller for gluing the lower surface of the fourth paper provided by the fourth upper paper frame or only traction the fourth paper, and a third glue coating / traction roller for gluing the upper surface of the single-sided honeycomb paper or only traction the single-sided honeycomb paper. a fourth glue coating / traction roller, a second glue coating roller driving device for driving the second glue coating roller, the third glue coating / traction roller and the fourth glue coating / traction roller to rotate; the third glue coating paper guide roller, the second glue coating roller, the fourth glue coating paper guide roller, the third glue coating / traction roller, the fourth glue coating / traction roller and the second glue coating roller driving device are respectively installed on the second glue coating frame; the third glue coating / traction roller is located between the second glue coating roller and the fourth glue coating / traction roller; the second glue coating roller driving device is respectively connected to the second glue coating roller, the third glue coating / traction roller and the fourth glue coating / traction roller.

7. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1, characterized in that: The lower ironing plate conveyor includes a lower ironing plate conveyor frame, a first upper conveyor belt for driving the single-sided corrugated paper and the third paper to move or driving the honeycomb paper core and the third paper to move, an upper elastic pressure wheel for pressing down the lower end belt body of the first upper conveyor belt, a lower ironing plate for heating and drying the single-sided corrugated paper and the third paper or heating and drying the honeycomb paper core and the third paper, and a first lower conveyor belt for driving the single-sided corrugated paper and the third paper to move or driving the honeycomb paper core and the third paper to move, the lower ironing plate is horizontally installed in the front lower end area of ​​the lower ironing plate conveyor frame, the first lower conveyor belt is installed in the rear lower end area of ​​the lower ironing plate conveyor frame, the first upper conveyor belt is installed at the upper end of the lower ironing plate conveyor frame and is located above the lower ironing plate and the first lower conveyor belt, a plurality of upper elastic pressure wheels are provided and are horizontally arranged and installed in the front area of ​​the lower ironing plate conveyor frame, all of the upper elastic pressure wheels are located inside the first upper conveyor belt and are pressed and contacted with the lower end belt body of the first upper conveyor belt, and the lower ironing plate is located below the upper elastic pressure wheel.

8. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1, characterized in that: The upper ironing plate conveyor includes an upper ironing plate conveyor frame, a second lower conveyor belt for moving single-sided corrugated paper and single-sided honeycomb paper, or moving single-sided corrugated paper and fourth paper and single-sided honeycomb paper, or moving double-sided corrugated paperboard or double-sided honeycomb paperboard, an upper ironing plate for heating and drying single-sided corrugated paper and single-sided honeycomb paper, or heating and drying single-sided corrugated paper and fourth paper and single-sided honeycomb paper, or heating and drying double-sided corrugated paperboard or double-sided honeycomb paperboard, and a second upper conveyor belt for moving single-sided corrugated paper and single-sided honeycomb paper, or moving single-sided corrugated paper and fourth paper and single-sided honeycomb paper, or moving double-sided corrugated paperboard or double-sided honeycomb paperboard, the second lower conveyor belt is installed at the lower end of the upper ironing plate conveyor frame, the upper ironing plate is installed in the upper end area of ​​the front section of the upper ironing plate conveyor frame, the second upper conveyor belt is installed in the lower end area of ​​the front section of the upper ironing plate conveyor frame, and the upper ironing plate and the second upper conveyor belt are both located above the second upper conveyor belt.

9. The fully automatic paperboard composite production line capable of producing various types of paperboards according to claim 1, characterized in that: It also includes a fifth upper paper rack for providing fifth paper, and a second single-sided corrugated paper forming machine for making the fifth paper provided by the fifth upper paper rack into corrugated paper. The fifth upper paper rack and the second single-sided corrugated paper forming machine are located on one side of the honeycomb paper core traction machine.

10. The fully automatic paperboard composite production line capable of producing various types of paperboards according to any one of claims 1 to 9, characterized in that: It also includes a cooling section conveyor for naturally cooling the cardboard output from the upper ironing plate conveyor, a longitudinal cutter for longitudinally cutting the cooled cardboard, a cross-cutter and / or a screw machine for transversely cutting the cardboard after longitudinal cutting, and a gantry stacking machine for stacking the finished cardboard products after cutting. The cooling section conveyor is installed on the discharge side of the upper ironing plate conveyor, the longitudinal cutter is installed on the discharge side of the cooling section conveyor, and the cross-cutter and / or the screw machine are installed between the longitudinal cutter and the gantry stacking machine.

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