Paper cup body paper coating spraying and drying integrated equipment

Abstract

The invention provides paper cup body paper coating spraying and drying integrated equipment, and belongs to the technical field of paper cup production equipment.The paper cup body paper coating spraying and drying integrated equipment comprises a workbench, the workbench is rotationally connected with a transmission roller, a spraying mechanism is arranged at the upper end of the workbench, the workbench is connected with a first flow guide pipe and a second flow guide pipe, and the second flow guide pipe is connected with an air collecting cover; the drying assembly is used for drying the raw paper; the preheating assembly is used for heating the raw paper; the paper cup body paper spraying and drying integrated treatment device has the beneficial effects that hot air flow is formed through the draught fan and the electric heating plate, a sprayed body paper coating is dried, generated waste gas enters the fixing cylinder and then is discharged or recycled through a follow-up pipeline system, and therefore spraying and drying integrated treatment of paper cup body paper is completed; the raw paper is sequentially preheated, sprayed and dried in the one-time conveying process, and the production efficiency and quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of paper cup production equipment, and more particularly to an integrated equipment for spraying and drying the coating of the base paper of paper cups. Background Art

[0002] With the improvement of living standards, paper cups have gradually entered people's lives. Drinking water through paper cups can improve the hygienic effect. Currently, in the production process of paper cups, they are mainly formed by cutting and bonding rolled paper. Before bonding the paper cups, it is necessary to spray polyethylene raw materials on the raw materials of the paper cups.

[0003] Currently, when spraying polyethylene on the raw materials of paper cups, it is mainly processed by the method of natural drying through long-distance transportation, which increases the conveying distance of the paper, occupies more space, and affects production efficiency. Moreover, if the hot waste gas after drying is directly discharged, it is easy to cause waste of energy. At the same time, during the processing, the temperature difference between the base paper and the high-temperature coating is relatively large, and thermal stress may cause micro-cracks in the base paper, affecting the quality. How to invent an integrated equipment for spraying and drying the coating of the base paper of paper cups to solve these problems has become an urgent problem for those skilled in the art. Summary of the Invention

[0004] To make up for the above deficiencies, the present invention provides an integrated equipment for spraying and drying the coating of the base paper of paper cups, aiming to solve the problems that natural drying increases the conveying distance of the paper, affects production efficiency, the hot waste gas after drying is easy to cause waste of energy, and at the same time, the temperature difference between the base paper and the high-temperature coating is relatively large, and thermal stress may cause micro-cracks in the base paper, affecting the quality.

[0005] The present invention is implemented as follows:

[0006] The present invention provides an integrated equipment for spraying and drying the coating of the base paper of paper cups, including a workbench, the workbench is rotationally connected with a driving roller, a spraying mechanism is arranged at the upper end of the workbench, the workbench is connected with a first diversion pipe and a second diversion pipe, the second diversion pipe is connected with an air collecting hood, and further includes:

[0007] A drying component, the drying component is located inside the workbench, and the drying component is used for drying the base paper;

[0008] A preheating component, the preheating component is connected with the workbench, and the preheating component is used for heating the base paper.

[0009] Preferably, a support frame is fixedly connected to the side wall of the workbench, and the support frame is fixedly connected with the spraying mechanism.

[0010] Preferably, the preheating assembly includes a rotating roller, both ends of the rotating roller are fixedly connected with rotating rods, the interior of the rotating roller is hollow, the rotating rods are rotatably connected to the side wall of the workbench, and flow slots are formed in the side walls of the rotating rods.

[0011] Preferably, a docking head is provided on the outer wall of the rotating rod at one end of the rotating roller, a spiral blade is fixedly connected to the inner wall of the rotating roller, and the rotating roller is located on one side of the support frame.

[0012] Preferably, the drying assembly includes a drying box, through holes are formed in both side walls of the drying box, a guiding groove is formed in the inner wall of the drying box, and the guiding groove is located below the through holes.

[0013] Preferably, an electric heating plate is fixedly connected to the inner wall of the drying box, the electric heating plate is located above the through holes, and a plurality of air inlet holes are formed in an array on the upper side wall of the drying box.

[0014] Preferably, the drying box further includes a fixed cylinder, one end of the fixed cylinder is fixedly connected to the lower end of the drying box, a blower is arranged inside the fixed cylinder, and the other end of the fixed cylinder vertically penetrates through the side wall of the workbench and is fixedly connected to a wind collecting hood.

[0015] Preferably, one end of the wind collecting hood away from the fixed cylinder is fixedly connected to a second diversion pipe, a support plate is arranged on the outer wall of the second diversion pipe, and one end of the support plate is fixedly connected to the lower end of the workbench.

[0016] Preferably, one end of the second diversion pipe away from the wind collecting hood is fixedly connected to a first diversion pipe, a fixing plate is fixedly connected to the side wall of the first diversion pipe, the fixing plate is fixedly connected to the lower side wall of the workbench, a docking pipe is arranged on the outer wall of the first diversion pipe, and the inner wall of one end of the docking pipe away from the first diversion pipe is rotatably connected to the outer wall of the corresponding rotating rod.

[0017] The beneficial effects of the present invention are:

[0018] When spraying the base paper of paper cups, a negative pressure is formed in the drying box by a blower, so that the inhaled air is heated when passing through the electric heating plate to form a hot air flow, which dries the coating on the sprayed base paper, causing the coating to quickly solidify and adhere to the surface of the base paper. During the drying process, the generated waste gas is guided by the guiding groove on the inner wall of the drying box under the action of the blower, enters the inside of the fixed cylinder, and is then discharged or recycled through the subsequent pipeline system, thereby completing the integrated treatment of spraying and drying the base paper of paper cups, enabling the base paper to sequentially complete the preheating, spraying, and drying processes during a single conveying process, improving production efficiency. Moreover, through preheating, the fibers of the base paper can slightly expand, and the microscopic pores on the surface can open, making it easier for the subsequent sprayed coating material to penetrate into the pores, enhancing the adhesion between the coating and the base paper. At the same time, preheating can reduce the temperature difference between the base paper and the high-temperature coating, reduce the thermal stress generated by the raw material due to sudden heating, and avoid micro-cracks in the base paper, so as to improve the production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 FIG. 1 is a schematic diagram of the overall front-side structure of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention;

[0021] Figure 2 FIG. 2 is a schematic diagram of the overall rear-side structure of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention;

[0022] Figure 3 FIG. 3 is a schematic diagram of the inner structure of the workbench of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention;

[0023] Figure 4 FIG. 4 is a schematic diagram of the drying component structure of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention;

[0024] <� Figure 5 FIG. 5 is a schematic diagram of the structure of the first diversion pipe and the second diversion pipe of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention;

[0025] Figure 6 FIG. 6 is a schematic diagram of the preheating component structure of an integrated spraying and drying device for the coating of the base paper of paper cups provided by an embodiment of the present invention.

[0026] In the figure: 1, workbench; 2, first diversion pipe; 21, docking pipe; 22, fixing plate; 3, second diversion pipe; 31, support plate; 4, support frame; 5, drying assembly; 51, drying box; 52, through hole; 53, fixing cylinder; 54, air inlet hole; 55, guiding groove; 56, electric heating plate; 57, fan; 6, spraying mechanism; 7, preheating assembly; 71, rotating roller; 72, docking head; 73, rotating rod; 74, spiral blade plate; 75, flow slot hole; 8, driving roller; 9, air collecting hood. Specific embodiments

[0027] To make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] Embodiment 1

[0029] Refer to Figures 1-6 , an integrated device for coating, spraying and drying of paper cups base paper, including a workbench 1, a driving roller 8 is rotatably connected to the workbench 1, and a spraying mechanism 6 is arranged at the upper end of the workbench 1. It is characterized in that the workbench 1 is connected with a first diversion pipe 2 and a second diversion pipe 3, the second diversion pipe 3 is connected with an air collecting hood 9, and further includes:

[0030] A drying assembly 5, the drying assembly 5 is located inside the workbench 1, and the drying assembly 5 is used for drying the base paper;

[0031] A preheating assembly 7, the preheating assembly 7 is connected to the workbench 1, and the preheating assembly 7 is used for heating the base paper.

[0032] Furthermore; a support frame 4 is fixedly connected to the side wall of the workbench 1, and the support frame 4 is fixedly connected to the spraying mechanism 6; the drying assembly 5 includes a drying box 51, through holes 52 are opened on both side walls at the two ends of the drying box 51, a guiding groove 55 is opened on the inner wall of the drying box 51, and the guiding groove 55 is located below the through holes 52; an electric heating plate 56 is fixedly connected to the inner wall of the drying box 51, the electric heating plate 56 is located above the through holes 52, and a plurality of air inlet holes 54 distributed in an array are opened on the upper side wall of the drying box 51; the drying box 51 further includes a fixing cylinder 53, one end of the fixing cylinder 53 is fixedly connected to the lower end of the drying box 51, a fan 57 is arranged inside the fixing cylinder 53, and the other end of the fixing cylinder 53 vertically penetrates the side wall of the workbench 1 and is fixedly connected to the air collecting hood 9.

[0033] It should be noted that when spraying the base paper of the paper cup, the operator first unfolds the rolled base paper raw material, makes the base paper pass through the driving roller 8 at one end of the workbench 1, keeps the base paper in a tensioned state and stably conveys it. Then, the base paper passes through the rotating roller 71 of the preheating assembly 7. During this process, the rotating roller 71 preheats the base paper by using the hot air flow flowing inside, raises the temperature of the base paper, and prepares for the subsequent spraying. Subsequently, the base paper continues to be conveyed and passes under the spraying mechanism 6 at the upper end of the workbench 1. At this time, the spraying mechanism 6 is started, and the spraying mechanism 6 evenly sprays coating materials such as polyethylene on the surface of the base paper to form a protective layer to enhance the waterproof, oil-proof and other properties of the base paper of the paper cup. After spraying, the base paper passes through the through hole 52 and enters the drying box 51 of the drying assembly 5. At this time, the electric heating plate 56 and the fan 57 are started. When the fan 57 works, a negative pressure is formed in the drying box 51, and the outside air is sucked in through the air inlet hole 54 on the upper side wall of the drying box 51. The sucked air is heated when passing through the electric heating plate 56 to form a hot air flow, and the sprayed base paper coating is dried, so that the coating is quickly cured and adhered to the surface of the base paper. A filter layer can be provided inside the air inlet hole 54 to filter the dust in the outside air and reduce the influence on the coating. During the drying process, the generated waste gas is guided by the guiding groove 55 on the inner wall of the drying box 51 under the action of the fan 57, enters the inside of the fixed cylinder 53, and is then discharged or recycled through the subsequent pipeline system. In this way, the integrated treatment of spraying and drying of the base paper of the paper cup is completed, and the base paper completes the preheating, spraying and drying processes in sequence during one conveying process, improving the production efficiency. The base paper can complete the whole process treatment by passing through the equipment once, avoiding the time waste of separate drying after spraying in the traditional process, greatly shortening the overall treatment cycle, and the linkage process design reduces the floor area of the equipment, and the connection of each link is tight, further improving the production efficiency.

[0034] Referring to Figures 4-6 , further; the preheating assembly 7 includes a rotating roller 71. Both ends of the rotating roller 71 are fixedly connected with rotating rods 73. The inside of the rotating roller 71 is hollow. The rotating rod 73 is rotatably connected with the side wall of the workbench 1. A flow groove hole 75 is opened on the side wall of the rotating rod 73; a docking head 72 is provided on the outer wall of the rotating rod 73 at one end of the rotating roller 71. A spiral blade 74 is fixedly connected to the inner wall of the rotating roller 71. The rotating roller 71 is located on one side of the support frame 4; one end of the air collecting hood 9 away from the fixed cylinder 53 is fixedly connected with the second diversion pipe 3. A support plate 31 is provided on the outer wall of the second diversion pipe 3. One end of the support plate 31 is fixedly connected with the lower end of the workbench 1; the end of the second diversion pipe 3 away from the air collecting hood 9 is fixedly connected with the first diversion pipe 2. A fixing plate 22 is fixedly connected to the side wall of the first diversion pipe 2. The fixing plate 22 is fixedly connected with the lower side wall of the workbench 1. A docking pipe 21 is provided on the outer wall of the first diversion pipe 2. The inner wall of the end of the docking pipe 21 away from the first diversion pipe 2 is rotatably connected with the outer wall of the corresponding rotating rod 73.

[0035] It should be noted that: the hot gas generated after drying, under the suction of the fan 57, enters the inside of the air collecting hood 9 through the fixed cylinder 53, and then is conveyed along the second diversion pipe 3. Since the second diversion pipe 3 is connected to the first diversion pipe 2, the hot air flow enters the hollow cavity of the rotating roller 71 through the first diversion pipe 2, the docking pipe 21 and the flow slot holes 75 on the side wall of the rotating rod 73. When the gas flows in the rotating roller 71, the spiral blade 74 on its inner wall will guide the air flow to move along the spiral path, by extending the flow trajectory of the gas in the rotating roller 71 and delaying the gas flow rate, this design can effectively increase the contact time between the hot air flow and the rotating roller 71, enabling the rotating roller 71 to fully absorb heat and conduct it to the base paper to achieve the preheating effect. The preheating can slightly expand the base paper fibers and open the surface micro pores, making it easier for the subsequent sprayed coating material to penetrate into the pores, enhancing the adhesion between the coating and the base paper. At the same time, the preheating can reduce the temperature difference between the base paper and the high-temperature coating, reduce the thermal stress generated by the sudden heat of the raw material, and avoid micro cracks in the base paper. In addition, the second diversion pipe 3 and the first diversion pipe 2 are made of vacuum tubes, and the heat loss of the hot air flow during transmission can be reduced through the vacuum heat insulation principle, further improving the heat utilization rate. The docking head 72 can be externally connected to a filtering device to purify the used gas, effectively reducing the coating particles and volatile substances in the waste gas, reducing environmental pollution. And the spiral blade 74 can be made of aluminum alloy material, which can quickly absorb the heat of the hot air flow and conduct it to the outer wall of the rotating roller 71, shortening the preheating response time. Through the lightweight design, the inertial resistance during the rotation of the rotating roller 71 can be reduced, avoiding affecting the stability of the base paper conveying, and an anodic oxidation treatment is carried out on its surface to form an oxide film to prevent corrosion by the coating waste gas and extend the service life;

[0036] In addition, the preheating can increase the temperature of the base paper, reduce the temperature difference with the drying hot air flow, reduce the heat required for the coating to dry after spraying, and reduce the power demand of the electric heating plate 56, avoiding long-term full-load operation. The temperature field in the drying box 51 is more likely to be stable, and the heating efficiency of the hot air flow on the coating is improved, thus shortening the drying time, enabling the coating to be quickly cured and adhered. Moreover, the temperature of the base paper is uniform after preheating, and the heat exchange with the hot air flow is more balanced when entering the drying box 51, reducing the incidence of defects such as cracking and bubbling on the coating surface, and reducing the rework drying caused by quality problems.

[0037] It should be noted that the specific model specifications of the electrical components need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An integrated equipment for coating, spraying and drying of the base paper of paper cups, comprising a workbench (1), the workbench (1) is rotationally connected with a transmission roller (8), and a spraying mechanism (6) is arranged at the upper end of the workbench (1), characterized in that, The workbench (1) is connected with a first diversion pipe (2) and a second diversion pipe (3). The second diversion pipe (3) is connected with an air collecting hood (9). Further included are: A drying assembly (5), which is located inside the workbench (1) and is used for drying the base paper. A preheating assembly (7), which is connected to the workbench (1) and is used for heating the base paper.

2. The integrated equipment for coating, spraying and drying of the base paper of a paper cup according to claim 1, characterized in that, A support frame (4) is fixedly connected to the side wall of the workbench (1), and the support frame (4) is fixedly connected to a spraying mechanism (6).

3. The integrated equipment for spraying and drying the coating of the base paper of a paper cup according to claim 1, characterized in that, The preheating assembly (7) includes a rotating roller (71). Both ends of the rotating roller (71) are fixedly connected with rotating rods (73). The inside of the rotating roller (71) is hollow. The rotating rods (73) are rotatably connected to the side wall of the workbench (1), and flow slots (75) are formed in the side walls of the rotating rods (73).

4. A one - body coating, spraying and drying device for the base paper of paper cups according to claim 3, characterized in that, A docking head (72) is arranged on the outer wall of the rotating rod (73) at one end of the rotating roller (71). A spiral blade (74) is fixedly connected to the inner wall of the rotating roller (71). The rotating roller (71) is located on one side of the support frame (4).

5. A one - body coating, spraying and drying device for the base paper of paper cups according to claim 1, characterized in that, The drying assembly (5) includes a drying box (51). Through holes (52) are formed in the side walls at both ends of the drying box (51). A guiding groove (55) is formed in the inner wall of the drying box (51), and the guiding groove (55) is located below the through holes (52).

6. The integrated equipment for coating, spraying and drying of the base paper of a paper cup according to claim 5, characterized in that, An electric heating plate (56) is fixedly connected to the inner wall of the drying box (51), and the electric heating plate (56) is located above the through holes (52). A plurality of air inlet holes (54) distributed in an array are formed in the upper side wall of the drying box (51).

7. An integrated equipment for coating, spraying and drying the coating of the base paper of a paper cup according to claim 6, characterized in that, The drying box (51) further includes a fixed cylinder (53). One end of the fixed cylinder (53) is fixedly connected to the lower end of the drying box (51). A blower (57) is arranged inside the fixed cylinder (53). The other end of the fixed cylinder (53) vertically penetrates the side wall of the workbench (1) and is fixedly connected to the air collecting hood (9).

8. An integrated equipment for spraying and drying the coating of the base paper of a paper cup according to claim 7, characterized in that, One end of the air collecting hood (9) far away from the fixed cylinder (53) is fixedly connected to the second diversion pipe (3). A support plate (31) is arranged on the outer wall of the second diversion pipe (3), and one end of the support plate (31) is fixedly connected to the lower end of the workbench (1).

9. An integrated equipment for spraying and drying the coating of the base paper of a paper cup according to claim 8, characterized in that, One end of the second diversion pipe (3) far away from the air collecting hood (9) is fixedly connected to the first diversion pipe (2). A fixing plate (22) is fixedly connected to the side wall of the first diversion pipe (2), and the fixing plate (22) is fixedly connected to the lower side wall of the workbench (1). A docking pipe (21) is arranged on the outer wall of the first diversion pipe (2), and the inner wall of the end of the docking pipe (21) far away from the first diversion pipe (2) is rotatably connected to the outer wall of the corresponding rotating rod (73).

Images