CN111645369A - Industrial composite paperboard and preparation process thereof - Google Patents

Abstract

The invention discloses an industrial composite paperboard and a preparation process thereof, relating to the technical field of industrial composite paperboards, wherein the preparation process of the industrial composite paperboard comprises the following steps: feeding; gluing the preheated base paper; pressing the glued base paper; and (6) discharging. The industrial composite paperboard of the present invention comprises three layers of base paper bonded to each other. The invention solves the problem that the base paper can generate dislocation in the pressing process, and reduces the possibility of the dislocation of the base paper in the pressing process. In addition, the industrial composite paperboard has the advantage of neat side lines.

Description

A kind of industrial composite paperboard and its preparation process

technical field

The invention relates to the technical field of industrial composite paperboard, more particularly, to an industrial composite paperboard and a preparation process thereof.

Background technique

Currently, cardboard is a thick sheet of paper that has been processed through pulp and consists of interwoven fibers.

For the prior art, reference may be made to the Chinese invention patent with publication number CN108265561A, which discloses a manufacturing process of industrial composite paperboard, which includes material selection; paper loading; preheating; edge alignment; gluing; gluing; ; drying; after packaging, the industrial composite paperboard is prepared. The drying process is added to remove the moisture in the cardboard, so that the prepared composite cardboard is not easily deformed.

However, during the processing of the above-mentioned cardboard, the base paper is glued and bonded after the edge is aligned. Since the base paper is conveyed by a conveyor belt, dislocation may occur during the conveying process. The above process does not align the base paper in the bonding step, which may lead to the dislocation of the base paper during the lamination process, thereby affecting the neatness of the four edges of the cardboard after processing, thereby affecting the quality of the composite cardboard.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the first object of the present invention is to provide a process for preparing an industrial composite paperboard, which can reduce the possibility of dislocation of the base paper during the lamination process by aligning the base paper during the lamination process. sex.

The second object of the present invention is to provide an industrial composite paperboard, which has the advantage of neat edges.

The first invention purpose of the present invention is achieved through the following technical solutions:

A preparation process of industrial composite paperboard, comprising the following steps:

S1. Loading: Select high-gloss paper as the base paper, and place the base paper on the paper carrier in turn;

S2. Preheat the base paper: set the heating temperature to 40-50°C, the base paper is heated by the heating roller and then moves into the second transmission assembly;

S3. Glue the preheated base paper: move the base paper to the top of the second drive roller, start the second air cylinder to drive the glue roller to move down, and glue the base paper, and set the gluing speed of the glue roller to 20 -40M/min, each round of gluing time is 8-12s, after gluing is finished, the second cylinder drives the gluing roller to move upward; the base paper moves into the first transmission assembly;

S4. Base paper after pressing and gluing: the base paper is moved into the pressing device by the first transmission component, and the second air cylinder is activated, and the second air cylinder drives the first push plate to align the three overlapping base papers; the pressure plate After moving down, press three layers of base paper to form cardboard, and the pressing pressure is 0.8-5kg;

S5. Discharging: when the second air cylinder drives the pressing plate to move upward, the baffle plate moves upward, and the second pressing plate pushes the pressing plate to discharge the material through the discharge through hole; the cardboard is put into a 40-60 ℃ oven for drying, and trimmed. , Cross-cut to industrial composite cardboard.

By adopting the above technical solution, the base paper falls into the pressing device after being glued, and before the base paper is pressed by the pressure plate, the two first push plates will press the base paper from both sides respectively, so as to press the laminated three-layer base paper. On the opposite side, it reduces the possibility of the misalignment of the base paper after pressing the cardboard, and reduces the burden of the subsequent trimming process.

In a preferred example of the present invention, it can be further configured that: the paper carrier includes a roller bed, a heating roller and a second transmission roller rotatably installed on the opposite inner side of the roller bed, and a roller bed that is arranged in the roller bed and is used for conveying the base paper The first transmission assembly and the second transmission assembly; the second transmission assembly has the same structure as the first transmission assembly; the first transmission assembly includes two first transmission rollers rotatably installed on the opposite inner sides of the roller bed A conveyor belt linked by a first drive roller; a first gantry frame is fixed on the top of the roller bed, two first cylinders are fixed on the top of the first gantry frame, and connecting through holes are respectively opened on the opposite inner sides of the first gantry frame Two connecting through holes are respectively provided with connecting pieces along the vertical sliding, the opposite inner sides of the two connecting pieces are fixed with glue rollers, and the top of each connecting piece is fixed with the output end of the first cylinder connection; a pressing device for pressing the cardboard is arranged in the roller bed.

By adopting the above technical solution, the base paper is preheated by the heating roller and then moves into the second transmission assembly. By preheating the base paper, the residual moisture in the base paper can be reduced, which facilitates the subsequent gluing of the base paper by the gluing roller. After the base paper is conveyed to the top of the second drive roller, the first air cylinder is activated, the first air cylinder pushes the connecting piece to move down, and the gluing roller moves down and contacts the base paper, so as to apply glue to the upper surface of the base paper. The first transmission assembly is conveyed into the pressing device to form the cardboard.

In a preferred example of the present invention, it can be further configured that: the pressing device includes a second gantry fixed on the top of the roller bed, two second air cylinders fixed on the top of the second gantry, and a vertical sliding A top rod arranged in the second gantry; a support rod is fixed at the bottom of the top rod, a connecting rod is fixed at the bottom of the support rod, and a pressing plate for pressing cardboard is fixed at the bottom of the connecting rod; the first The output end of the second cylinder is fixedly connected with the top of the ejector rod.

By adopting the above technical solution, the three layers of base paper entering the pressing device are stacked in sequence from top to bottom, and the second air cylinder is activated. The glued base paper forms cardboard.

In a preferred example of the present invention, it can be further configured as follows: the roller bed is provided with two sets of pushing mechanisms for driving the alignment of the base paper; each group of the pushing mechanisms includes a first vertical plate fixed on the inner bottom surface of the roller bed, An installation through hole opened on the side of the first vertical plate close to the pressure plate, a sliding rod slidingly arranged in the installation through hole along the width direction of the roller bed, and a first pusher fixed on the side of the sliding rod close to the pressure plate plate; a pressing component for driving the first push plate to move to the side close to the pressing plate is arranged between each of the sliding rod and the top rod; A sliding member on one side and an abutting rod fixed on the bottom of the ejector rod; first inclined surfaces are respectively opened on the opposite inner sides of the abutting rod and the sliding member; a side of the sliding member close to the second transmission roller is fixed with A slider, a first spring is fixed on the side of the slider away from the abutment rod, and one end of the first spring away from the slider is fixedly connected with the side of the first vertical plate away from the pressure plate.

By adopting the above technical solution, when the ejector rod drives the abutment rod to move downward, the abutment rod contacts the sliding member, the abutting rod presses the sliding member through the first inclined surface, and pushes the sliding member to move toward the side close to the pressing plate ;The two first push plates push the base paper from both sides respectively, so that the stacked three layers of base paper are aligned; by setting the push mechanism to be linked with the pressure plate, it is convenient to align the base paper before pressing, and reduce the speed of the base paper during the pressing process. Possibility of misalignment. During the pressing process of the second cylinder driving the pressing plate, the first pressing plate moves along with it, thereby improving the use efficiency of the second cylinder.

In a preferred example of the present invention, it can be further configured as follows: a discharge through hole is opened on one side of the roller bed, and a baffle is arranged in the discharge through hole along the vertical sliding; two sides of the baffle are respectively A dovetail block is fixed, a dovetail groove is respectively opened on the opposite inner side of the discharge through hole, and each of the dovetail blocks is arranged in the dovetail groove along the vertical sliding; A drive assembly for driving the baffle to move upwards is arranged in each room.

By adopting the above-mentioned technical scheme, and by setting the discharging through hole, the pressing and pressing of the cardboard are convenient for discharging. The dovetail groove provides a guiding function for the dovetail block, reducing the possibility of the baffle deviating from the track during the vertical movement of the baffle.

In a preferred example of the present invention, it can be further configured as follows: each group of the driving components includes an installation groove opened on the side of the baffle plate close to the abutment rod, and is slidably arranged in the installation groove along the length direction of the roller bed and used for A plug connector that is inserted into the side of the abutment rod away from the second transmission roller; a third spring is fixed on the side of the plug connector away from the abutment rod, and one end of the third spring away from the plug connector is installed with The groove is fixedly connected on the side away from the abutting rod; a pressing piece is fixed on the top surface of the discharge through hole, and a slot for inserting with the pressing piece is opened on the top of the plug-in piece; the bottom of the pressing piece is far away from the A second inclined surface is formed on one side of the abutting rod, and a third inclined surface is formed on a side of the slot away from the abutting rod for abutting with the second inclined surface.

By adopting the above technical solution, after the abutment rod moves upward, the plug-in connector is inserted into the abutment rod under the action of the third spring, so that the baffle plate moves upwards with the abutment rod; After the slot is inserted, the pressing piece abuts against the third inclined surface through the second inclined surface, and pushes the inserting piece to move to the side away from the abutting rod, thereby separating the inserting piece from the abutting rod; the baffle plate falls under the action of gravity , thereby closing the discharge through hole. The up and down movement of the baffle is driven by the abutment rod, and the abutment rod is driven by the second air cylinder to move vertically up and down, thereby further improving the use efficiency of the second air cylinder.

In a preferred example of the present invention, it can be further configured as follows: the bottom plate of the roller bed is provided with a square groove along the length direction of the roller bed, and an abutting plate is arranged in the square groove along the length direction of the roller bed; A first strip-shaped through hole and a second strip-shaped through hole are opened on the bottom surface of the bed; fourth inclined surfaces are respectively opened on the opposite inner sides of the baffle plate and the abutment plate; a second push plate is fixed on the top of the abutment plate, The second push plate is slidably arranged in the second strip-shaped through hole along the length direction of the roller bed; a second vertical plate is fixed on the inner bottom surface of the roller bed, and the second vertical plate is close to the second push plate. There are two guide through holes on the side, two guide shafts are fixed on the side of the second push plate close to the second vertical plate, and each of the guide shafts is slidingly arranged in the guide through holes along the length direction of the roller bed. A second spring is fixed on the side of the second vertical plate close to the second push plate, and one end of the second spring away from the second push plate is fixedly connected to the side of the second vertical plate close to the second push plate.

By adopting the above technical solution, after the baffle falls, the baffle presses against the abutment plate through the fourth inclined surface, and pushes the abutment plate to move toward the side close to the second push plate; therefore, when the discharge through hole is in the closed state, the first The two springs are in a compressed state, and the second spring applies an elastic force to the second push plate toward the side close to the baffle; when the baffle rises, the two second springs push the second push plate to move toward the side close to the baffle, which is convenient for moving the second push plate to the side close to the baffle. The pressed cardboard is pushed out from the discharge through hole.

The second purpose of the present invention is achieved through the following technical solutions:

An industrial composite paperboard comprising three layers of mutually bonded base paper.

By adopting the above technical solution, the three layers of base paper are formed by adhering to opposite sides, which reduces the possibility of the dislocation of the base paper after the cardboard is formed.

To sum up, the present invention has the following beneficial effects compared to the prior art:

1. After the base paper falls into the pressing device, firstly align the stacked three-layer base paper to reduce the possibility of the misalignment of the base paper after pressing and reducing the burden of the subsequent trimming process. ;

2. By setting the push mechanism to be linked with the pressing plate, it is convenient to align the base paper before pressing, reducing the possibility of misalignment of the base paper during the pressing process, and improving the use efficiency of the second cylinder;

3. After the cardboard is pressed together, the second air cylinder drives the abutment rod to rise, so that the second push plate pushes the cardboard out of the discharge through hole, which facilitates the cardboard discharge and further improves the use efficiency of the second air cylinder.

Description of drawings

1 is a partial cross-sectional view of an embodiment of the present invention;

Fig. 2 is the enlarged schematic diagram of A place in Fig. 1;

FIG. 3 is a schematic structural diagram of highlighting the abutment rod in the present invention;

FIG. 4 is an enlarged schematic view of B in FIG. 3 .

In the figure: 1. Roller bed; 11. Heating roller; 12. Second transmission roller; 13. First cylinder; 14. Connecting through hole; 15. Connecting piece; 2. First transmission assembly; ; 22, the first drive roller; 23, the conveyor belt; 24, the first gantry; 25, the second gantry; 26, the glue roller; 3, the pressing device; 31, the second cylinder; 32, the ejector rod; 33, Support rod; 34, connecting rod; 35, pressing plate; 36, pressing member; 4, pushing mechanism; 41, first vertical plate; 42, installation through hole; 43, sliding rod; 44, first push plate; 5, Abutting component; 51, sliding piece; 52, abutting rod; 53, first slope; 54, slider; 55, first spring; 56, discharge through hole; 57, baffle; 58, dovetail block; 6. Drive assembly; 61, Installation slot; 62, Plug connector; 63, Slot; 64, Second slope; 65, Third slope; 66, Square slot; 67, Abutment plate; 7, Second spring; 71, the first strip through hole; 72, the second strip through hole; 73, the fourth slope; 74, the second push plate; 75, the second vertical plate; 76, the guide through hole; 77, the guide shaft.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1: A paper carrier, as shown in Figure 1, includes a roller bed 1, a heating roller 11 and a second transmission roller 12 that are rotatably installed on the opposite inner side of the roller bed 1, and are arranged in the roller bed 1 and are used for conveying. The first transmission assembly 2 and the second transmission assembly 21 of the base paper; the second transmission assembly 21 has the same structure as the first transmission assembly 2 . The first transmission assembly 2 includes two first transmission rollers 22 rotatably mounted on the opposite inner side of the roller bed 1 and a conveyor belt 23 for interlocking the two first transmission rollers 22 . The first transmission assembly 2 and the second transmission assembly 21 are respectively disposed on both sides of the second transmission roller 12 ; the heating roller 11 is disposed on the side of the second transmission assembly 21 away from the second transmission roller 12 . A first gantry 24 and a second gantry 25 are fixed on the top of the roller bed 1. The first gantry 24 is located above the second drive roller 12, and two first cylinders 13 are fixed on the top of the first gantry 24. The first gantry The opposite inner sides of 24 are respectively provided with connecting through holes 14 . Connecting pieces 15 are respectively disposed in the two connecting through holes 14 along the vertical sliding direction. The opposite inner sides of the two connecting pieces 15 are fixed with a glue roller 26 , and the top of each connecting piece 15 is fixedly connected to the output end of the first cylinder 13 . . The base paper is preheated by the heating roller 11 and then moves into the second transmission assembly 21, and is transported by the second transmission assembly 21 to the top of the second transmission roller 12; after the first air cylinder 13 is activated, the first air cylinder 13 pushes the connecting piece 15 to move down , the gluing roller 26 moves down and contacts the base paper, so as to apply glue to the upper surface of the base paper. After the base paper is glued, it moves into the first transmission assembly 2 .

As shown in FIG. 1 , the roller bed 1 is provided with a pressing device 3 for pressing the cardboard, and the pressing device 3 is arranged on the side of the first transmission assembly 2 away from the second transmission roller 12 . The pressing device 3 includes two second air cylinders 31 fixed on the top of the second gantry 25 and a top rod 32 slidably arranged in the second gantry 25 along the vertical direction. A support rod 33 is fixed at the bottom of the top rod 32 , a connecting rod 34 is fixed at the bottom of the support rod 33 , and a pressing plate 35 for pressing the cardboard is fixed at the bottom of the connecting rod 34 . The output end of the second air cylinder 31 penetrates through the top of the second gantry 25 and is fixedly connected to the top of the ejector rod 32 . The base paper is moved into the pressing device 3 by the first transmission assembly 2; after the three layers of base paper are stacked in sequence from top to bottom, the second air cylinder 31 is activated, and the second air cylinder 31 drives the pressing plate 35 to move down through the ejector rod 32. The base paper is pressed together.

As shown in FIG. 1 and FIG. 2 , two sets of push mechanisms 4 for driving the alignment of the base paper are provided in the roller bed 1 . Referring to FIG. 3 , each set of pushing mechanisms 4 includes a first vertical plate 41 fixed on the inner bottom surface of the roller bed 1 , a mounting through hole 42 opened on the side of the first vertical plate 41 close to the pressing plate 35 , and sliding along the width direction of the roller bed 1 . The sliding rod 43 disposed in the installation through hole 42 and the first push plate 44 fixed to the side of the sliding rod 43 close to the pressing plate 35 are provided. A pressing component 5 for driving the first push plate 44 to move toward the side close to the pressing plate 35 is disposed between each sliding rod 43 and the top rod 32 . Each set of pressing components 5 includes a sliding member 51 fixed on the side of the sliding rod 43 away from the first push plate 44 and an abutting rod 52 fixed on the bottom of the top rod 32 ; First inclined surfaces 53 are respectively opened. A slider 54 is fixed on the side of the sliding member 51 close to the second transmission roller 12 , a first spring 55 is fixed on the side of the slider 54 away from the abutting rod 52 , and the first spring 55 is connected with the first vertical plate 41 at one end away from the slider 54 . The side away from the pressure plate 35 is fixedly connected. When the ejector rod 32 drives the abutment rod 52 to move downward, the abutment rod 52 is in contact with the sliding member 51 , and the abutting rod 52 presses the sliding member 51 through the first inclined surface 53 and pushes the sliding member 51 toward the pressing plate 35 One side moves; the two first push plates 44 push the base paper from two sides respectively, so that the stacked three layers of base paper are aligned.

As shown in FIG. 1 and FIG. 3 , a discharge through hole 56 is opened on one side of the roller bed 1 , and a baffle plate 57 is arranged in the discharge through hole 56 to slide vertically. Dovetail blocks 58 are respectively fixed on both sides of the baffle plate 57 , and dovetail grooves are respectively formed on the opposite inner side of the discharge through hole 56 , and each dovetail block 58 is vertically slid and disposed in the dovetail groove. A driving assembly 6 for driving the shutter 57 to move upward is disposed between each abutment rod 52 and the baffle 57 . Each set of drive assemblies 6 includes an installation groove 61 formed on the side of the baffle 57 close to the abutment rod 52 , and is slidably disposed in the installation groove 61 along the length direction of the roller bed 1 and is used for the abutment rod 52 to be away from the second transmission roller 12 plug-in connector 62 on one side; a third spring is fixed on the side of the connector 62 away from the abutment rod 52, and one end of the third spring away from the connector 62 is fixedly connected to the side of the installation slot 61 away from the abutment rod 52 . Referring to FIG. 4 , the pressing member 36 is fixed on the top surface of the discharge through hole 56 , and the top of the plug-in member 62 is provided with a slot 63 for inserting with the pressing member 36 ; the bottom of the pressing member 36 is away from the side of the abutting rod 52 A second inclined surface 64 is formed, and a third inclined surface 65 for abutting with the second inclined surface 64 is formed on the side of the slot 63 away from the abutting rod 52 . After the abutment rod 52 moves upward, the plug 62 is inserted into the abutment rod 52 under the action of the third spring, so that the baffle 57 moves upward with the abutment rod 52; after the baffle 57 is opened, the pressed cardboard The material is discharged from the discharge through hole 56 . After the plug-in member 62 moves until the pressing member 36 is inserted into the slot 63 , the pressing member 36 abuts against the third inclined surface 65 through the second inclined surface 64 and pushes the plug-in member 62 to move away from the abutting rod 52 . , and then separate the plug 62 from the abutting rod 52 ; the baffle 57 falls under the action of gravity, thereby closing the discharge through hole 56 .

As shown in FIG. 1 , a square groove 66 is formed in the bottom plate of the roller bed 1 along the length direction of the roller bed 1 , and a contact plate 67 is slidably arranged in the square groove 66 along the length direction of the roller bed 1 . The inner bottom surface of the roller bed 1 is provided with a first bar-shaped through hole 71 and a second bar-shaped through-hole 72 that communicate with the square groove 66 , and the baffle plate 57 is penetrated in the first strip-shaped through hole 71; the baffle plate 57 is in contact with the The opposite inner sides of the plate 67 are respectively provided with fourth inclined surfaces 73 . A second push plate 74 is fixed on the top of the contact plate 67 , and the second push plate 74 is slidably disposed in the second strip-shaped through hole 72 along the length direction of the roller bed 1 . A second vertical plate 75 is fixed on the inner bottom surface of the roller bed 1. Two guide through holes 76 are formed on the side of the second vertical plate 75 close to the second push plate 74. The second push plate 74 is fixed on the side close to the second vertical plate 75. Two guide shafts 77 , each guide shaft 77 is slidably disposed in the guide through hole 76 along the length direction of the roller bed 1 . The side of the second vertical plate 75 close to the second push plate 74 is fixed with a second spring 7, and the end of the second spring 7 away from the second push plate 74 is fixedly connected to the side of the second vertical plate 75 close to the second push plate 74; The spring 7 is sleeved on the peripheral side of the guide shaft 77 . After the baffle 57 falls, the baffle 57 presses against the abutment plate 67 through the fourth inclined surface 73, and pushes the abutment plate 67 to move toward the side close to the second push plate 74; therefore, when the discharge through hole 56 is in the closed state, The second spring 7 is in a compressed state, and the second spring 7 applies an elastic force to the second push plate 74 toward the side close to the baffle plate 57; when the baffle plate 57 rises, the two second springs 7 push the second push plate 74 toward the side close to the baffle plate 57. One side of the baffle plate 57 is moved, so that the pressed cardboard can be pushed out from the discharge through hole 56 .

The working principle of this embodiment is as follows:

The base paper is preheated by the heating roller 11 and then moves into the second transmission assembly 21, and is transported by the second transmission assembly 21 to the top of the second transmission roller 12; after the first air cylinder 13 is activated, the first air cylinder 13 pushes the connecting piece 15 to move down , the gluing roller 26 moves down and contacts the base paper, so as to apply glue to the upper surface of the base paper. After the base paper is glued, it moves into the first transmission assembly 2 . After the three layers of base paper are stacked in sequence from top to bottom, the second air cylinder 31 is activated, and the second air cylinder 31 drives the pressing plate 35 to move downward through the ejector rod 32 to press the three layers of base paper.

When the ejector rod 32 drives the abutment rod 52 to move downward, the abutment rod 52 is in contact with the sliding member 51 , and the abutting rod 52 presses the sliding member 51 through the first inclined surface 53 and pushes the sliding member 51 toward the pressing plate 35 One side moves; the two first push plates 44 push the base paper from two sides respectively, so that the stacked three layers of base paper are aligned.

After the pressing is completed, the second air cylinder 31 drives the abutment rod 52 to move upward, and the plug connector 62 is inserted into the abutment rod 52 under the action of the third spring, so that the baffle 57 moves upward with the abutment rod 52; the baffle After the 57 is opened, the two second springs 7 push the second push plate 74 to move toward the side close to the baffle 57 , and the pressed cardboard is discharged from the discharge through hole 56 .

After the plug-in member 62 moves until the pressing member 36 is inserted into the slot 63 , the pressing member 36 abuts against the third inclined surface 65 through the second inclined surface 64 and pushes the plug-in member 62 to move away from the abutting rod 52 . , and then separate the plug 62 from the abutting rod 52 ; the baffle 57 falls under the action of gravity, thereby closing the discharge through hole 56 .

An industrial composite cardboard is formed by bonding three layers of base paper in sequence.

A preparation process of industrial composite paperboard, comprising the following steps:

S1. Loading: Select high-gloss paper as the base paper, and place the base paper on the paper carrier in turn. The three adjacent base papers on the paper carrier are a group, and the interval between two adjacent base paper groups on the paper carrier is 60cm. In each base paper group, the interval between two adjacent base papers on the paper carrier is 15cm.

S2. Preheating the base paper: the heating temperature of the heating roller 11 is set to 40° C., and the base paper is heated by the heating roller 11 and then moves into the second transmission assembly 21 .

S3. Glue the preheated base paper: move the base paper to the top of the second drive roller 12, start the second air cylinder 31 to drive the glue roller 26 to move down, apply glue to the base paper, and set the coating of the glue roller 26. The gluing speed is 20M/min, and the gluing time per round is 8s. After gluing is completed, the second cylinder 31 drives the gluing roller 26 to move upward; the base paper moves into the first transmission assembly 2 .

S4. Base paper after pressing and gluing: The base paper is moved from the first transmission assembly 2 into the pressing device 3, the second air cylinder 31 is activated, and the second air cylinder 31 drives the first push plate 44 to align the three superimposed base papers. edge; after the pressing plate 35 moves down, the three layers of base paper are pressed together to form cardboard, and the pressing pressure is 0.8kg.

S5. Discharging: when the second air cylinder 31 drives the pressing plate 35 to move upward, the baffle 57 moves upward, and the second pushing plate 74 pushes the pressing plate 35 to discharge the material from the discharging through hole 56 . Put the cardboard into an oven at 40°C to dry, and after trimming and cross-cutting, it becomes an industrial composite cardboard.

Embodiment 2: a preparation process of industrial composite paperboard, comprising the steps:

S1. Loading: Select high-gloss paper as the base paper, and place the base paper on the paper carrier in turn. The three adjacent base papers on the paper carrier are a group, and the interval between two adjacent base paper groups on the paper carrier is 70cm. In each base paper group, the interval between two adjacent base papers on the paper carrier is 18cm.

S2. Preheating the base paper: the heating temperature of the heating roller 11 is set to 45° C., and the base paper is heated by the heating roller 11 and then moves into the second transmission assembly 21 .

S3. Glue the preheated base paper: move the base paper to the top of the second drive roller 12, start the second air cylinder 31 to drive the glue roller 26 to move down, apply glue to the base paper, and set the coating of the glue roller 26. The gluing speed is 30M/min, and the gluing time per round is 10s. After gluing is completed, the second cylinder 31 drives the gluing roller 26 to move upward; the base paper moves into the first transmission assembly 2 .

S4. Base paper after pressing and gluing: The base paper is moved from the first transmission assembly 2 into the pressing device 3, the second air cylinder 31 is activated, and the second air cylinder 31 drives the first push plate 44 to align the three superimposed base papers. edge; after the pressing plate 35 moves down, the three layers of base paper are pressed together to form cardboard, and the pressing pressure is 3kg.

S5. Discharging: when the second air cylinder 31 drives the pressing plate 35 to move upward, the baffle 57 moves upward, and the second pushing plate 74 pushes the pressing plate 35 to discharge the material from the discharging through hole 56 . Put the cardboard into an oven at 45°C to dry, and after trimming and cross-cutting, it is an industrial composite cardboard.

Embodiment 3: a preparation process of industrial composite paperboard, comprising the steps:

S1. Loading: Select high-gloss paper as the base paper, and place the base paper on the paper carrier in turn. Three adjacent base papers on the paper carrier are a group, and the interval between two adjacent base paper groups on the paper carrier is 80cm. In each base paper group, the interval between two adjacent base papers on the paper carrier is 15-20cm.

S2. Preheating the base paper: the heating temperature of the heating roller 11 is set to 50° C., and the base paper is heated by the heating roller 11 and then moves into the second transmission assembly 21 .

S3. Glue the preheated base paper: move the base paper to the top of the second drive roller 12, start the second air cylinder 31 to drive the glue roller 26 to move down, apply glue to the base paper, and set the coating of the glue roller 26. The gluing speed is 40M/min, and the gluing time per round is 12s. After gluing is completed, the second cylinder 31 drives the gluing roller 26 to move upward; the base paper moves into the first transmission assembly 2 .

S4. Base paper after pressing and gluing: The base paper is moved from the first transmission assembly 2 into the pressing device 3, the second air cylinder 31 is activated, and the second air cylinder 31 drives the first push plate 44 to align the three superimposed base papers. edge; after the pressing plate 35 moves down, the three layers of base paper are pressed together to form cardboard, and the pressing pressure is 5kg.

S5. Discharging: when the second air cylinder 31 drives the pressing plate 35 to move upward, the baffle 57 moves upward, and the second pushing plate 74 pushes the pressing plate 35 to discharge the material from the discharging through hole 56 . Put the cardboard into an oven at 60°C to dry, and after trimming and cross-cutting, it becomes an industrial composite cardboard.

The embodiments of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention should be covered in within the protection scope of the present invention.

Claims (8)

1. A preparation process of industrial composite paperboard is characterized by comprising the following steps: the method comprises the following steps:

s1, feeding: selecting high-gloss paper as base paper, and sequentially placing the base paper on a paper bearing machine;

s2, preheating base paper: setting the heating temperature of the heating roller (11) to be 40-50 ℃, and moving the base paper into the second transmission assembly (21) after the base paper is heated by the heating roller (11);

s3, gluing the preheated base paper: moving the base paper to the position above the second transmission roller (12), starting a second air cylinder (31) to drive a glue spreader (26) to move downwards, spreading glue on the base paper, setting the spreading speed of the glue spreader (26) to be 20-40M/min, setting the spreading time of each round to be 8-12s, and driving the glue spreader (26) to move upwards by the second air cylinder (31) after glue spreading; the base paper moves into a first transmission assembly (2);

s4, pressing the glued base paper: the base paper is moved into the pressing device (3) by the first transmission assembly (2), the second cylinder (31) is started, and the second cylinder (31) drives the first push plate (44) to carry out edge alignment on the three base paper sheets which are mutually overlapped; pressing the three layers of base paper to form a paperboard after the pressing plate (35) moves downwards, wherein the pressing pressure is 0.8-5 kg;

s5, discharging: when the second cylinder (31) drives the pressing plate (35) to move upwards, the baffle (57) moves upwards, and the second push plate (74) pushes the pressing plate (35) to discharge materials from the discharge through hole (56); and (3) putting the paperboard into an oven at 40-60 ℃ for drying, and trimming and transversely cutting the paperboard to obtain the industrial composite paperboard.

2. The process for preparing an industrial composite paperboard according to claim 1, characterized in that: the paper bearing machine comprises a roller bed (1), a heating roller (11) and a second transmission roller (12) which are rotatably arranged on the opposite inner sides of the roller bed (1), and a first transmission assembly (2) and a second transmission assembly (21) which are arranged in the roller bed (1) and used for transmitting base paper; the second transmission assembly (21) has the same structure as the first transmission assembly (2); the first transmission assembly (2) comprises two first transmission rollers (22) which are rotatably arranged on the opposite inner sides of the roller bed (1) and a transmission belt (23) which enables the two first transmission rollers (22) to be linked; a first portal frame (24) is fixed at the top of the roller bed (1), two first cylinders (13) are fixed at the top of the first portal frame (24), and connecting through holes (14) are respectively formed in the opposite inner sides of the first portal frame (24); connecting pieces (15) are arranged in the two connecting through holes (14) in a sliding mode along the vertical direction respectively, glue spreading rollers (26) are fixed on the opposite inner sides of the two connecting pieces (15), and the top of each connecting piece (15) is fixedly connected with the output end of the first air cylinder (13); and a pressing device (3) for pressing the paperboard is arranged in the roller bed (1).

3. The process for preparing an industrial composite paperboard according to claim 2, characterized in that: the pressing device (3) comprises a second portal frame (25) fixed to the top of the roller bed (1), two second air cylinders (31) fixed to the top of the second portal frame (25) and a push rod (32) arranged in the second portal frame (25) in a vertically sliding mode; a support rod (33) is fixed at the bottom of the ejector rod (32), a connecting rod (34) is fixed at the bottom of the support rod (33), and a pressing plate (35) for pressing the paperboard is fixed at the bottom of the connecting rod (34); the output end of the second air cylinder (31) is fixedly connected with the top of the ejector rod (32).

4. The process for preparing an industrial composite paperboard according to claim 2, characterized in that: two groups of pushing mechanisms (4) for driving the base paper to align are arranged in the roller bed (1); each group of pushing mechanisms (4) comprises a first vertical plate (41) fixed on the inner bottom surface of the roller bed (1), a mounting through hole (42) formed in one side, close to the pressing plate (35), of the first vertical plate (41), a sliding rod (43) arranged in the mounting through hole (42) in a sliding mode in the width direction of the roller bed (1), and a first push plate (44) fixed on one side, close to the pressing plate (35), of the sliding rod (43); a pressing component (5) for driving the first push plate (44) to move towards one side close to the press plate (35) is arranged between each slide rod (43) and the ejector rod (32); each group of the abutting components (5) comprises a sliding piece (51) fixed on one side of the sliding rod (43) far away from the first push plate (44) and an abutting rod (52) fixed at the bottom of the top rod (32); the opposite inner sides of the abutting rod (52) and the sliding piece (51) are respectively provided with a first inclined surface (53); slide (51) are close to second driving roller (12) one side and are fixed with slider (54), slider (54) are kept away from and are connected pole (52) one side and are fixed with first spring (55), slider (54) one end is kept away from in first spring (55) with clamp plate (35) one side fixed connection is kept away from in first riser (41).

5. The process for preparing an industrial composite paperboard according to claim 4, characterized in that: a discharge through hole (56) is formed in one side of the roller bed (1), and a baffle (57) is arranged in the discharge through hole (56) in a sliding manner along the vertical direction; dovetail blocks (58) are respectively fixed on two sides of the baffle (57), dovetail grooves are respectively formed in the opposite inner sides of the discharge through holes (56), and each dovetail block (58) is arranged in each dovetail groove in a sliding mode along the vertical direction; and a driving assembly (6) for driving the baffle (57) to move upwards is arranged between each abutting rod (52) and the baffle (57).

6. The process for preparing an industrial composite paperboard according to claim 5, characterized in that: each group of driving components (6) comprises a mounting groove (61) formed in one side, close to the abutting rod (52), of the baffle plate (57), and a plug connector (62) which is arranged in the mounting groove (61) in a sliding mode along the length direction of the roller bed (1) and is used for being plugged with the abutting rod (52) at one side far away from the second transmission roller (12); a third spring is fixed on one side, away from the abutting rod (52), of the plug connector (62), and one end, away from the plug connector (62), of the third spring is fixedly connected with one side, away from the abutting rod (52), of the mounting groove (61); a pressing piece (36) is fixed on the top surface of the discharging through hole (56), and a slot (63) for being inserted into the pressing piece (36) is formed in the top of the plug connector (62); a second inclined surface (64) is formed on one side, away from the abutting rod (52), of the bottom of the abutting piece (36), and a third inclined surface (65) used for abutting against the second inclined surface (64) is formed on one side, away from the abutting rod (52), of the slot (63).

7. The process for preparing an industrial composite paperboard according to claim 6, characterized in that: a square groove (66) is formed in the bottom plate of the roller bed (1) along the length direction of the roller bed (1), and a butt plate (67) is arranged in the square groove (66) in a sliding manner along the length direction of the roller bed (1); a first strip-shaped through hole (71) and a second strip-shaped through hole (72) are formed in the inner bottom surface of the roller bed (1); the opposite inner sides of the baffle (57) and the abutting plate (67) are respectively provided with a fourth inclined surface (73); a second push plate (74) is fixed at the top of the abutting plate (67), and the second push plate (74) is arranged in the second strip-shaped through hole (72) in a sliding manner along the length direction of the roller bed (1); a second vertical plate (75) is fixed on the inner bottom surface of the roller bed (1), two guide through holes (76) are formed in one side, close to the second push plate (74), of the second vertical plate (75), two guide shafts (77) are fixed on one side, close to the second vertical plate (75), of the second push plate (74), and each guide shaft (77) is arranged in each guide through hole (76) in a sliding mode along the length direction of the roller bed (1); the second spring (7) is fixed on one side, close to the second push plate (74), of the second vertical plate (75), one end, far away from the second push plate (74), of the second spring (7) is fixedly connected with one side, close to the second push plate (74), of the second vertical plate (75).

8. An industrial composite board according to any one of claims 1-7, characterized in that: comprises three layers of base paper which are mutually bonded.

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