Corrugated board production device

Abstract

The corrugated board production device comprises an oil pool and an oil passing roller, and the oil passing roller comprises an outer roller, an oil applying plate and a plunger; the outer roller is rotationally arranged in the oil pool, the lower half part of the outer roller is immersed in oil, the oiling plate is an arc-shaped plate attached to the outer surface of the outer roller, the outer roller can rotate relative to the oiling plate, the lower end of the oiling plate extends into the oil, and the upper end of the oiling plate extends out of the oil in the rotating direction of the outer roller and extends to the position close to the contact position of the corrugated board and the outer roller; the multiple plungers are evenly distributed on the outer roller and can stretch out and draw back in a reciprocating mode relative to the outer roller in the diameter direction of the outer roller, and the multiple plungers stretch out and draw back in the same amount relative to the outer roller. The plunger shrinks to the position below the outer surface of the outer roller to form an oil cavity before rotating to the oiling plate along with the outer roller, keeps the shrinking state and passes through the oiling plate, and the plunger stretches out to be flush with the outer surface of the outer roller at the contact position of the corrugated board and the outer roller. According to the device, oil can be evenly smeared on corrugated boards, and the production quality of the corrugated boards is improved.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paper, and in particular to a corrugated paperboard production device. Background Art

[0002] Corrugated cardboard is a board-shaped material made by gluing noodle paper and corrugated paper formed by corrugating rollers. It is generally divided into single corrugated cardboard and double corrugated cardboard. The invention and application of corrugated cardboard has a history of more than 100 years. It has the advantages of low cost, light weight, easy processing, high strength, excellent printing adaptability, convenient storage and transportation, etc. More than 80% of corrugated cardboard can be recycled. Corrugated cardboard can be used as packaging for food or digital products. It is relatively environmentally friendly and widely used.

[0003] In order to make the corrugated cardboard have a better waterproof effect, the corrugated cardboard needs to be oiled during the production process, but the existing corrugated cardboard oiling production equipment has the following problems: 1. At present, when corrugated cardboards of different widths are processed by oiling, since the oiling width of the oiling roller on the existing corrugated cardboard production device is fixed, it is necessary to use different types of corrugated cardboard production devices for processing, which increases the cost of using the device and is not conducive to the production of corrugated cardboards of different specifications; 2. When the existing corrugated cardboard production device is oiling, the wear and deformation of the machine parts, uneven oil supply or ambient temperature will cause the thickness of the oil on the surface of the oil roller to be uneven, which makes it easy for the oil roller to apply oil to the surface of the corrugated cardboard unevenly, thus affecting the production quality of the corrugated cardboard; 3. When the existing corrugated cardboard production device is undergoing oil processing, the oiled corrugated cardboard generally needs to be dried. In the prior art, the interval between the oiling and drying processes is relatively long, which easily causes the corrugated cardboard to be soaked and deformed. In addition, due to the low temperature of the oil, the time required for drying the corrugated cardboard is relatively long, which affects the production efficiency of the corrugated cardboard. Summary of the invention

[0004] In view of the above problems, the present invention proposes a corrugated board production device to overcome the above problems or at least partially solve the above problems.

[0005] A corrugated cardboard production device comprises an oil pool and an oiling roller, wherein the oiling roller comprises an outer roller, an oiling plate and a plunger; the oil pool is provided with oil, the outer roller is rotatably arranged in the oil pool and the lower half of the outer roller is immersed in the oil, the oiling plate is an arc-shaped plate attached to the outer surface of the outer roller, the outer roller can rotate relative to the oiling plate, the lower end of the oiling plate extends into the oil, the upper end of the oiling plate extends out of the oil along the rotation direction of the outer roller and extends to a position close to the contact between the corrugated cardboard and the outer roller; a plurality of plungers are evenly distributed on the outer roller, and along the diameter direction of the outer roller, the plungers can reciprocate and retract relative to the outer roller, and the extension amounts of the plurality of plungers relative to the outer roller are the same; the plunger shrinks to below the outer surface of the outer roller before the outer roller rotates to the oiling plate to form an oil cavity and keeps the shrinking state to pass through the oiling plate, and the plunger extends to be flush with the outer surface of the outer roller at the contact position between the corrugated cardboard and the outer roller.

[0006] Preferably, the oiling roller is also provided with an inner roller; the inner roller is coaxially arranged inside the outer roller, the outer roller rotates relative to the inner roller, the outer surface of the inner roller is provided with a first working surface and a second working surface along the circumferential direction, the central angle of the first working surface is greater than the central angle of the oiling plate; the plunger is connected to the outer roller through a spring, and the spring can push the plunger to abut against the outer surface of the inner roller; the plunger can rotate with the outer roller to the first working surface, and the spring pushes the plunger to contract to form an oil chamber; the plunger can rotate with the outer roller to the second working surface, and the second working surface pushes the plunger to overcome the spring and extend to be flush with the outer surface of the outer roller.

[0007] Preferably, along the axial direction of the outer roller, the outer roller can perform axial reciprocating movement relative to the oil pool.

[0008] Preferably, the oil-passing roller also includes a fixed shaft, a rotating shaft, a first bevel gear and a second bevel gear; the fixed shaft is arranged along the axis of the inner roller, one end of the fixed shaft is linearly slidably connected to the inner roller and is fixedly connected to the oil pool, and the other end is coaxially and relatively rotatably connected to one end of the rotating shaft; the rotating shaft is connected to the outer roller, and the rotating shaft can drive the outer roller to rotate, and the outer roller can reciprocate relatively along the axial direction of the rotating shaft; the first bevel gear is rotatably arranged on the rotating shaft, and the second bevel gear is coaxially fixedly arranged on the fixed shaft, the first bevel gear is meshed and connected with the second bevel gear, and the end face of the first bevel gear is eccentrically provided with a gear pin; a portion of the outer roller extends to the interior of the inner roller and is provided with a first annular groove on the inner surface and a connecting pin on the outer surface, the free end of the gear pin extends and is slidably connected to the first annular groove; the inner surface of the inner roller is provided with a second annular groove, and the free end of the connecting pin extends and is slidably connected to the second annular groove.

[0009] Preferably, the corrugated cardboard production device is provided with a plurality of the oiling rollers; along the direction of the corrugated cardboard passing through the oil pool, the plurality of oiling rollers are arranged in sequence, the rotating shafts of the plurality of oiling rollers can rotate synchronously, and the gear pins in two adjacent oiling rollers are arranged 180 degrees apart.

[0010] Preferably, the inner roller is provided with an air inlet, and the plunger is provided with an air flow channel; the air inlet is connected to the space between the inner roller and the outer roller, one end of the air flow channel is connected to the space between the inner roller and the outer roller, and the other end of the air flow channel extends to the side of one end of the plunger close to the outer surface of the outer roller.

[0011] Preferably, the outer surface of the inner roller is also provided with a third working surface; the third working surface is arranged downstream of the contact position between the corrugated cardboard and the outer roller, and the plunger can rotate to the third working surface with the outer roller, and the third working surface pushes the plunger to overcome the spring and move to the air flow channel to extend out of the outer surface of the outer roller.

[0012] Preferably, the oil-passing roller is further provided with a control ring; along the axial direction of the inner roller, one end of the inner roller is used as a working end and is provided with the first working surface and the second working surface, and the other end of the inner roller is used as a control end, and the control ring is sleeved on the control end of the inner roller and can move back and forth, and the outer diameter of the control ring is equal to the outer diameter of the second working surface; the plunger includes a first plunger, a second plunger and a third plunger, and along the axial direction of the outer roller, the first plunger is arranged at the end of the outer roller corresponding to the working end, the lower end of the first plunger is provided with a first baffle facing the control end, and the second plunger is arranged in the outer roller to At the end of the control end, the lower end of the second plunger is provided with a second baffle facing the working end, and a plurality of third plungers are sequentially arranged between the first plunger and the second plunger, and the lower end of the third plunger is provided with a third baffle facing the working end and a fourth baffle facing the control end; the spring drives the lower end of the first plunger to abut against the outer surface of the working end in the inner roller, the spring drives the third baffle of the third plunger to abut on the adjacent first baffle or the adjacent fourth baffle of the third plunger, and the spring drives the second baffle of the second plunger to abut on the adjacent fourth baffle of the third plunger.

[0013] Preferably, the oil roller is further provided with a push rod; the push rod is connected to the control ring to drive the control ring to reciprocate at the control end.

[0014] Preferably, the corrugated cardboard production device is also provided with a first conveyor belt, a second conveyor belt and a third conveyor belt; the first conveyor belt and the second conveyor belt are respectively located at two ends of the oil pool, and the third conveyor belt is located above the oil roller, and the third conveyor belt can drive the corrugated cardboard to pass through above the oil roller.

[0015] The corrugated board production device of the present invention has the following beneficial technical effects: 1. In the present invention, a plurality of retractable plungers are evenly arranged on the oiling roller, and the plungers are controlled to shrink to below the outer surface of the outer roller as the outer roller comes out of the oil and rotates toward the corrugated board to form an oil cavity for containing the oil. The oiling plate is used to bring the oil to the position where the corrugated board and the outer roller form contact, and then the plungers are controlled to extend to apply the oil on the corrugated board. A plurality of plungers with the same amount of extension and contraction can carry the same volume of oil, thereby ensuring that the oil is evenly applied on the corrugated board and improving the production quality of the corrugated board.

[0016] 2. In the present invention, an oiling roller that can reciprocate axially is provided, so that the oiling roller can reciprocate axially while rotating, and because of the positional relationship between the gear pins inside each oiling roller, the oiling rollers can reciprocate in an alternating manner, so that the corrugated cardboard is evenly stressed along the axial direction of the oiling roller without deviation, so that the oiling roller can evenly apply oil to the corrugated cardboard in the axial direction, thereby improving the production quality of the corrugated cardboard.

[0017] 3. In the present invention, a movable control ring is provided and a baffle is provided on the plunger, so that the plunger on the right side of the control ring can move along with the roller core under the use of the spring, thereby achieving control of the number of plungers axially contracted by the oil roller for corrugated cardboards of different widths, meeting the processing of corrugated cardboards of different widths and improving the use range of the equipment.

[0018] 4. In the present invention, an air flow channel is provided on the plunger. When the plunger extends out of the outer roller, hot air can be blown out through the air flow channel and blown onto the area where the oil is coated on the corrugated cardboard. The oil can be pre-dried, the temperature of the oil can be increased, the time required for subsequent drying can be reduced, and production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the corrugated board production device of this embodiment; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction; Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the CC direction; Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure along the DD direction; Figure 6 for Figure 2 The schematic diagram of the local enlarged structure at position I in the middle; Figure 7 for Figure 2 Schematic diagram of the local enlarged structure at II in the middle. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Combination Figures 1 to 7As shown, the corrugated cardboard production device of this embodiment includes an oil pool 1 and an oiling roller 2. The oil pool 1 is provided with oil. The oiling roller 2 is rotatably arranged on the oil pool 1 and the lower half of the oiling roller 2 is immersed in the oil. The oiling roller 2 includes an outer roller 3, an oiling plate 4 and a plunger 5. The outer roller 3 is rotatably arranged on the oil pool 1 as a rotating component of the oiling roller 2, and the lower half of the outer roller 3 is immersed in the oil. The oiling plate 4 is an arc-shaped plate attached to the outer surface of the outer roller 3. The outer roller 3 can rotate relative to the oiling plate 4. The lower end of the oiling plate 4 extends into the oil, and the upper end of the oiling plate 4 extends out of the oil along the rotation direction of the outer roller 3 and extends to a position close to the contact between the corrugated cardboard and the outer roller 3, as shown in FIG. Figure 1 As shown, when the outer roller 3 rotates clockwise, the oiling plate 4 is located on the left side of the outer roller 3. Multiple plungers 5 are evenly distributed on the outer roller 3 along the axial and circumferential directions of the outer roller 3. Along the diameter direction of the outer roller 3, the plungers 5 can reciprocate relative to the outer roller 3, and the expansion and contraction amounts formed by the expansion and contraction of multiple plungers 5 relative to the outer roller 3 are the same. Before the plunger 5 rotates with the outer roller 3 to the position of the oiling plate 4, the plunger 5 shrinks to below the outer surface of the outer roller 3 to form an oil chamber 6 and passes through the oiling plate 4 in a shrinking state. When the plunger 5 passes through the oiling plate 4 and moves to the contact position formed by the corrugated cardboard and the outer roller 3, the plunger 5 extends again to be flush with the outer surface of the outer roller 3, thereby discharging the oil in the oil chamber 6.

[0022] In this embodiment, a plurality of retractable plungers are evenly arranged on the oiling roller, and the plungers are controlled to shrink to below the outer surface of the outer roller as the outer roller comes out of the oil and rotates toward the corrugated board to form an oil cavity containing the oil. The oiling plate is used to bring the oil to the position where the corrugated board and the outer roller form contact, and then the plungers are controlled to extend to apply the oil on the corrugated board. Since the expansion and contraction amounts of the plurality of plungers are the same, the volumes of oil carried in the plurality of oil cavities formed by the plurality of plungers can be the same, thereby ensuring that the oil is applied evenly on the corrugated board and improving the production quality of the corrugated board.

[0023] Combination Figure 4 As shown, in the corrugated board production device of this embodiment, the oiling roller 2 is further provided with an inner roller 7. The inner roller 7 is coaxially arranged inside the outer roller 3, and the outer roller 3 rotates relative to the inner roller 7. The outer surface of the inner roller 7 is provided with a first working surface 8 and a second working surface 9 along the circumferential direction. The plunger 5 is connected to the outer roller 3 through a spring 10, and the spring 10 can push the plunger 5 to move relative to the outer roller 3 to abut against the outer surface of the inner roller 7. When the plunger 5 rotates to the first working surface 8 with the outer roller 3, the spring 10 pushes the plunger 5 to contract to form an oil chamber 6. When the plunger 5 rotates to the second working surface 9 with the outer roller 3, the second working surface 9 pushes the plunger 5 to overcome the spring 10 and extend to be flush with the outer surface of the outer roller 3.

[0024] In the oiling roller of the present embodiment, by providing an inner roller and providing a first working surface and a second working surface with different radially extending heights on the outer circumferential surface of the inner roller, the reciprocating telescopic motion of the plunger can be controlled by the cooperation between the spring, the first working surface and the second working surface during the relative rotation of the inner roller and the outer roller, thereby simplifying the working control of the corrugated cardboard production device.

[0025] Among them, combined Figure 1 and Figure 3 As shown, in this embodiment, the position of the first working surface 8 corresponds to the position of the oiling plate 4, the central angle of the oiling plate 4 is less than 180 degrees, and the central angle of the first working surface 8 is greater than the central angle of the oiling plate 4, that is, the area where the oil cavity 6 is formed during the rotation of the outer roller 3 is greater than the coverage area of ​​the oiling plate 4, so that it can be ensured that the oil cavity 6 is formed when the plunger 5 moves to the oiling plate 4, and when the oil cavity 6 reaches the contact position between the corrugated board and the outer roller 3, that is, Figure 3 When the outer roller 3 is at the highest position, the oil chamber 6 has been separated from the oiling plate 4 and can smoothly apply the oil on the corrugated board.

[0026] In addition, combined Figure 2 As shown, in the corrugated board production device of this embodiment, along the axial direction of the outer roller 3, the outer roller 3 can also perform axial reciprocating movement relative to the oil pool 1. In this way, in the process of applying the oil on the corrugated board, the axial reciprocating movement of the outer roller can further improve the uniformity of the oil coating and improve the production quality of the corrugated board.

[0027] Combination Figure 2As shown, in the corrugated cardboard production device of this embodiment, a fixed shaft 11, a rotating shaft 12, a first bevel gear 13 and a second bevel gear 14 are also provided in the oiling roller 2. The fixed shaft 11 is arranged along the axis of the inner roller 7, one end of the fixed shaft 11 forms a linear sliding connection with the inner roller 7 through a flat key and the end extends to be fixedly connected with the oil pool 1, and the other end of the fixed shaft 11 forms a coaxial relative rotation connection with one end of the rotating shaft 12, that is, the rotating shaft 12 can rotate relative to the fixed shaft 11 and the oil pool 1. The rotating shaft 12 is connected to the outer roller 3 through a flat key, so that the rotating shaft 12 can drive the outer roller 3 to rotate, and the outer roller 3 can move back and forth relatively along the axial direction of the rotating shaft 12. The first bevel gear 13 is rotatably arranged on the outer circumferential surface of the rotating shaft 12, and the second bevel gear 14 is coaxially fixedly arranged on the fixed shaft 11. The first bevel gear 13 is meshed with the second bevel gear 14, and the end face of the first bevel gear 13 is eccentrically provided with a gear pin 15. The outer roller 3 partially extends to the inside of the inner roller 7, and is provided with a first annular groove 16 on its inner surface and a connecting pin 17 on its outer surface, and the free end of the gear pin 15 extends and is slidably connected to the first annular groove 16. At the same time, a second annular groove 18 is provided on the inner surface of the inner roller 7, and the free end of the connecting pin 17 extends and is slidably connected to the second annular groove 18.

[0028] At this time, the outer roller can be driven to rotate relative to the inner roller and the oil pool through the rotating shaft, and the gear pin can be driven to slide along the first annular groove with the rotating shaft. In the process of the first bevel gear rotating with the rotating shaft, it rotates by meshing with the second bevel gear, thereby driving the gear pin to rotate around the axis of the first bevel gear, thereby pushing the outer roller to carry the inner roller to perform axial reciprocating movement relative to the oil pool, that is, Figure 2 The horizontal reciprocating movement shown can further improve the uniformity of oil coating and improve the production quality of corrugated cardboard.

[0029] Combination Figure 1 As shown, in the corrugated board production device of this embodiment, four oiling rollers 2 are provided. Along the direction of the corrugated board passing through the oil pool 1, that is, Figure 1 In the horizontal direction shown, four oiling rollers 2 are arranged in sequence, and the rotating shafts 12 of the four oiling rollers 2 can rotate synchronously, and the gear pins 15 in two adjacent oiling rollers 2 are arranged at an interval of 180 degrees.

[0030] By setting up multiple oiling rollers, the oiling operation on a large area of ​​corrugated cardboard can be satisfied. When the multiple oiling rollers rotate synchronously, the gear pins in two adjacent oiling rollers are set at an interval of 180 degrees, so that the two adjacent oiling rollers can form axial movement in opposite directions, so that the corrugated cardboard spanning the two adjacent outer rollers is evenly stressed along the axial direction of the oiling roller without deviation, so that the oiling roller can evenly apply oil to the corrugated cardboard in the axial direction, further improving the production quality of the corrugated cardboard.

[0031] Combination Figure 2 As shown, in the corrugated board production equipment of this embodiment, an air inlet 19 is also provided on the inner roller 7, and an air flow channel 20 is provided on the plunger 5. The air inlet 19 is connected to the space between the inner roller 7 and the outer roller 3, and one end of the air flow channel 20 is connected to the space between the inner roller 7 and the outer roller 3, and the other end of the air flow channel 20 extends to the side of one end of the plunger 5 close to the outer surface of the outer roller 3, that is, Figure 3 As shown, the air flow channel 20 is arranged roughly along the axial direction of the plunger 5, the lower end is connected to the space between the inner roller 7 and the outer roller 3, and the upper end extends along the plunger 5 to a position close to the outer surface of the outer roller 3 and protrudes from the side.

[0032] At this time, after the plunger rotates with the outer roller to the second working surface and applies the oil to the corrugated cardboard, by controlling the plunger to extend out of the outer surface of the outer roller so that the air flow channel extends out of the outer roller, hot air can be introduced to the outer surface of the outer roller, and the corrugated cardboard coated with oil can be pre-dried using the hot air, thereby increasing the temperature of the oil, reducing the time required for subsequent drying, and improving production efficiency.

[0033] Combination Figure 3 As shown, in the corrugated board production equipment of this embodiment, the outer surface of the inner roller 7 is further provided with a third working surface 21. The third working surface 21 is arranged downstream of the contact position between the corrugated board and the outer roller 3. When the plunger 5 can rotate to the third working surface 21 along with the outer roller 3, the third working surface 21 pushes the plunger 5 to overcome the spring 10 and move to the air channel 20 to extend out of the outer surface of the outer roller 3.

[0034] By setting a third working surface on the outer surface of the inner roller, the plunger can be automatically controlled to continue to extend after the oil coating is completed during the relative rotation of the inner roller and the outer roller to pre-dry the corrugated cardboard after the oil coating, thereby further improving the controllability of the corrugated cardboard production equipment.

[0035] Combination Figure 2As shown, in the corrugated board production equipment of this embodiment, the oiling roller 2 is further provided with a control ring 22. Along the axial direction of the inner roller 7, one end of the inner roller 7 is provided with the above-mentioned working surface as a working end, and the other end of the inner roller 7 is provided as a control end. The control ring 22 is sleeved on the control end of the inner roller 7 and can move back and forth. The outer diameter of the control ring 22 is equal to the outer diameter of the second working surface 9.

[0036] Meanwhile, the plunger 5 includes three structural forms of a first plunger 51, a second plunger 52 and a third plunger 53. Along the axial direction of the outer roller 3, the first plunger 51 is arranged at the end of the outer roller 3 corresponding to the working end, that is, Figure 2 At the rightmost position shown, the lower end of the first plunger 51 is provided with a first baffle 511 facing the control end, and the second plunger 52 is arranged at the end of the outer roller 3 corresponding to the control end, that is, Figure 2 At the leftmost position shown, the lower end of the second plunger 52 is provided with a second baffle 521 facing the working end, and a plurality of third plungers 53 are sequentially arranged between the first plunger 51 and the second plunger 52, and the lower end of the third plunger 53 is provided with a third baffle 531 facing the working end and a fourth baffle 532 facing the control end. Wherein, under the driving action of the spring 10, the lower end of the first plunger 51 is kept in contact with the outer surface of the working end of the inner roller 7, and under the driving action of the spring 10, the third baffle 531 of the third plunger 53 is in contact with the first baffle 511 of the adjacent first plunger 51 or the fourth baffle 532 of the adjacent third plunger 53, and under the driving action of the spring 10, the second baffle 521 of the second plunger 52 is in contact with the fourth baffle 532 of the adjacent third plunger 53.

[0037] In the corrugated board production equipment of the present embodiment, the first baffle plate, the second baffle plate, the third baffle plate and the fourth baffle plate are used to connect the first plunger, the second plunger and the third plunger. When the first plunger is extended, that is, when the first plunger is transferred from the first working surface to the second working surface or from the second working surface to the third working surface, the first baffle plate drives the adjacent third baffle plate to make the adjacent third plunger extend synchronously. When the third plunger is extended, the fourth baffle plate of the third plunger can drive the adjacent third baffle plate on the left side to make the adjacent third plunger extend synchronously. By analogy, all the third plungers can be extended synchronously. The third plunger and the second plunger extend synchronously. Conversely, when the spring pushes the first plunger to contract and form an oil chamber, that is, when the first plunger rotates from the second working surface to the first working surface, the third plunger on the right side of the control ring can be synchronously moved from the second working surface to the first working surface under the push of the spring. The third plunger on the control ring cannot contract to form an oil chamber because the outer diameter of the control ring is equal to the outer diameter of the second working surface, so that the fourth baffle of the third plunger drags the third baffle on its left side to prevent the third plunger on the left side from contracting, and so on, so that the third plunger on the left side of the control ring and the second plunger cannot contract to form an oil chamber.

[0038] At this time, by adjusting the position of the control ring at the control end in the inner roller, the number of plungers on the right side of the control ring can be changed, thereby changing the number of plungers performing the oiling work, that is, changing the size of the oiling area, and realizing the control of the number of plungers axially contracting the oiling roller for corrugated cardboards of different widths, thereby meeting the processing requirements for corrugated cardboards of different widths and improving the use range of the equipment.

[0039] Combination Figure 2 As shown, in this embodiment, a push rod 30 is provided on the inner roller 7, and the push rod 30 is connected to the control ring 22 to drive the control ring 22 to reciprocate and adjust the position of the control ring 22.

[0040] Combination Figure 2 As shown, in this embodiment, since the plunger needs to be driven by a spring to shrink and form an oil chamber, a spring is provided on each plunger at the control end of the corresponding inner roller to ensure that any plunger on the right side of the control ring in the area can shrink and form an oil chamber, and the plunger at the working end of the corresponding inner roller is always a working plunger, so it is sufficient to provide a partial spring. Of course, a spring can also be provided for each plunger.

[0041] Combination Figure 1 As shown, in the corrugated paperboard production device of this embodiment, a first conveyor belt 23, a second conveyor belt 24 and a third conveyor belt 25 are also provided. The first conveyor belt 23 and the second conveyor belt 24 are respectively located at two ends of the oil pool 1, and the third conveyor belt 25 is located above the oil roller 2. The third conveyor belt 25 can drive the corrugated paperboard to pass through the oil roller 2.

[0042] In addition, combined Figure 2 and Figure 5 As shown, in the corrugated board production device of this embodiment, a motor 26, a sprocket wheel 27 and a chain 28 are also provided. The motor 26 is fixed on the oil pool 1, and the motor 26 is connected to the rotating shaft 12 of one of the oiling rollers 2, and each rotating shaft 12 is respectively sleeved and fixed with a sprocket wheel 27, and the four sprocket wheels 27 are connected by the chain 28. At this time, the four oiling rollers 2 can be driven to rotate by the motor.

[0043] Combination Figures 1 to 7 As shown, the process of oil processing of the corrugated board production device in this embodiment is as follows: Step S1, preparation.

[0044] Add a proper amount of oil to the oil pool 1, so that the lower end of the outer roller 3 and the lower end of the oiling plate 4 are located in the oil, and use a hose to connect the hot air blower to the air inlet 19, so that the hot air enters the air channel 20 through the air inlet 19 and the space between the outer roller 3 and the inner roller 7, and control the push rod 30 to extend and retract. According to the width of the corrugated cardboard to be processed, adjust the position of the control ring 22 so that the plunger 5 on the right side of the control ring 22 can contract to form the oil chamber 6. Start the first conveyor belt 23, the second conveyor belt 24 and the third conveyor belt 25, start the motor 26, and drive the four rotating shafts 12 to rotate through the sprocket wheel 27 and the chain 28, thereby driving the four outer rollers 3 to rotate. Figure 1 As shown, the outer roller 3 rotates clockwise, and the plunger 5 thereon rotates relative to the inner roller 7, so that the plunger 5 on the right side of the control ring 22 rotates to the first working surface 8, so that this part of the plunger 5 contracts under the drive of the spring 10 to form an oil chamber 6, and the oil enters the oil chamber 6. The plunger 5 on the control ring 22 and on its left side is kept flush with the outer surface of the outer roller 3 under the support of the control ring 22. As the outer roller 3 rotates, the upper oil plate 4 forms a cover for the oil chamber 6, and the oil in the oil chamber 6 is transported upward as the outer roller 3 rotates, completing the preparation work.

[0045] Step S2, applying oil.

[0046] After completing the preparation work of step S1, the corrugated paperboard to be processed is placed on the first conveyor belt 23, and the corrugated paperboard is conveyed to the first conveyor belt 23 and the third conveyor belt 25. Figure 1 As shown in the figure, the oil is transported to the oil roller 2 on the right side. As the outer roller 3 rotates, the plunger 5 in the contracted state rotates from the first working surface 8 to the second working surface 9, that is, it rotates to Figure 3 When the outer roller 3 is at the highest position shown, the plunger 5 is pushed by the second working surface 9 to overcome the spring 10 and extend, pushing out the oil in the oil chamber 6 and smearing it on the corrugated cardboard. At the same time, the rotating shaft 12 rotates with the first bevel gear 13, and the first bevel gear 13 rotates by meshing with the second bevel gear 14, thereby driving the gear pin 15 to rotate around the axis of the first bevel gear 13, thereby pushing the outer roller 3 to carry the inner roller 7 to move axially back and forth relative to the oil pool 1. When the adjacent two gear pins 15 are set at an interval of 180 degrees, the four outer rollers 3 are staggered and reciprocated, and the friction generated by the contact between the corrugated cardboard and the four outer rollers 3 is balanced. Through the rotation and axial reciprocating movement of the outer roller 3, the oil is evenly smeared on the corrugated cardboard to complete the oil smearing.

[0047] Step S3, heating and drying.

[0048] After the oil coating work is completed, the outer roller 3 continues to rotate, and the plunger 5 on the right side of the control ring 22 rotates from the second working surface 9 to the third working surface 21. The plunger 5 on the right side of the control ring 22 is pushed by the third working surface 21 to overcome the spring 10 and extend, and is sequentially transmitted to all the plungers 5 on the control ring 22 and on its left side to extend, so that the air flow channels 20 on all the plungers 5 extend out of the outer surface of the outer roller 3, and the hot air is blown onto the oiled part of the corrugated cardboard to heat and pre-dry the oil. As the outer roller 3 continues to rotate, the plunger 5 on the right side of the control ring 22 rotates from the third working surface 21 to the second working surface 9, and all the plungers 5 are driven by the spring 10 to shrink to a state flush with the outer surface of the outer roller 3, and the air flow channel 20 is re-blocked by the outer roller 3 to complete the heating and drying work.

[0049] Step S4, conveying and unloading materials.

[0050] When the corrugated cardboard Figure 1 When the corrugated cardboard is transported to the second conveyor belt 24 in the right direction as shown, the corrugated cardboard coated with oil can be transferred to the subsequent drying equipment for further drying treatment, thereby completing the oiling process of the corrugated cardboard.

Claims

1. A corrugated board production device, characterized in that: It comprises an oil pool and an oiling roller, wherein the oiling roller comprises an outer roller, an oiling plate and a plunger; the oil pool is provided with oil, the outer roller is rotatably arranged in the oil pool and the lower half of the outer roller is immersed in the oil, the oiling plate is an arc-shaped plate attached to the outer surface of the outer roller, the outer roller can rotate relative to the oiling plate, the lower end of the oiling plate extends into the oil, and the upper end of the oiling plate extends out of the oil along the rotation direction of the outer roller and extends to a position close to the contact between the corrugated paperboard and the outer roller; The plurality of plungers are evenly distributed on the outer roller, and along the diameter direction of the outer roller, the plungers can reciprocate and retract relative to the outer roller, and the expansion and contraction amounts of the plurality of plungers relative to the outer roller are the same; the plungers rotate with the outer roller to the front of the oiling plate and shrink to below the outer surface of the outer roller to form an oil cavity and maintain the contracted state to pass through the oiling plate, and the plungers extend out to be flush with the outer surface of the outer roller at the contact position between the corrugated cardboard and the outer roller.

2. The corrugated board production device according to claim 1, characterized in that: The oiling roller is also provided with an inner roller; the inner roller is coaxially arranged inside the outer roller, the outer roller rotates relative to the inner roller, the outer surface of the inner roller is provided with a first working surface and a second working surface along the circumferential direction, the central angle of the first working surface is greater than the central angle of the oiling plate; the plunger is connected to the outer roller through a spring, and the spring can push the plunger to abut against the outer surface of the inner roller; the plunger can rotate with the outer roller to the first working surface, and the spring pushes the plunger to contract to form an oil chamber; the plunger can rotate with the outer roller to the second working surface, and the second working surface pushes the plunger to overcome the spring and extend to be flush with the outer surface of the outer roller.

3. The corrugated board production device according to claim 2, characterized in that: Along the axial direction of the outer roller, the outer roller can perform axial reciprocating movement relative to the oil pool.

4. The corrugated board production device according to claim 3, characterized in that: The oil-passing roller also includes a fixed shaft, a rotating shaft, a first bevel gear and a second bevel gear; the fixed shaft is arranged along the axis of the inner roller, one end of the fixed shaft is linearly slidably connected to the inner roller and is fixedly connected to the oil pool, and the other end is coaxially connected to one end of the rotating shaft for relative rotation; the rotating shaft is connected to the outer roller, and the rotating shaft can drive the outer roller to rotate, and the outer roller can reciprocate relatively along the axial direction of the rotating shaft; the first bevel gear is rotatably arranged on the rotating shaft, and the second bevel gear is coaxially fixedly arranged on the fixed shaft, the first bevel gear is meshed and connected with the second bevel gear, and the end face of the first bevel gear is eccentrically provided with a gear pin; a part of the outer roller extends to the interior of the inner roller and is provided with a first annular groove on the inner surface and a connecting pin on the outer surface, and the free end of the gear pin extends and is slidably connected to the first annular groove; the inner surface of the inner roller is provided with a second annular groove, and the free end of the connecting pin extends and is slidably connected to the second annular groove.

5. The corrugated board production device according to claim 4, characterized in that: The corrugated cardboard production device is provided with a plurality of the oiling rollers; along the direction of the corrugated cardboard passing through the oil pool, the plurality of oiling rollers are arranged in sequence, the rotating shafts of the plurality of oiling rollers can rotate synchronously, and the gear pins in two adjacent oiling rollers are arranged 180 degrees apart.

6. The corrugated board production device according to claim 2, characterized in that: The inner roller is provided with an air inlet, and the plunger is provided with an air flow channel; the air inlet is connected to the space between the inner roller and the outer roller, one end of the air flow channel is connected to the space between the inner roller and the outer roller, and the other end of the air flow channel extends to the side surface of one end of the plunger close to the outer surface of the outer roller.

7. The corrugated board production device according to claim 6, characterized in that: The outer surface of the inner roller is also provided with a third working surface; the third working surface is arranged downstream of the contact position between the corrugated cardboard and the outer roller, and the plunger can rotate to the third working surface with the outer roller, and the third working surface pushes the plunger to overcome the spring and move to the air flow channel to extend out of the outer surface of the outer roller.

8. The corrugated board production device according to claim 2, characterized in that: The oil-passing roller is also provided with a control ring; along the axial direction of the inner roller, one end of the inner roller is used as a working end and is provided with the first working surface and the second working surface, and the other end of the inner roller is used as a control end, and the control ring is sleeved on the control end of the inner roller and can move back and forth, and the outer diameter of the control ring is equal to the outer diameter of the second working surface; the plunger includes a first plunger, a second plunger and a third plunger, and along the axial direction of the outer roller, the first plunger is arranged at the end of the outer roller corresponding to the working end, the lower end of the first plunger is provided with a first baffle facing the control end, and the second plunger is arranged in the outer roller corresponding to the At the end of the control end, the lower end of the second plunger is provided with a second baffle facing the working end, and a plurality of third plungers are sequentially arranged between the first plunger and the second plunger, and the lower end of the third plunger is provided with a third baffle facing the working end and a fourth baffle facing the control end; the spring drives the lower end of the first plunger to abut against the outer surface of the working end in the inner roller, the spring drives the third baffle of the third plunger to abut on the adjacent first baffle or the adjacent fourth baffle of the third plunger, and the spring drives the second baffle of the second plunger to abut on the adjacent fourth baffle of the third plunger.

9. The corrugated board production device according to claim 8, characterized in that: The oil roller is also provided with a push rod; the push rod is connected to the control ring to drive the control ring to reciprocate at the control end.

10. The corrugated board production device according to claim 1, characterized in that: The corrugated cardboard production device is also provided with a first conveyor belt, a second conveyor belt and a third conveyor belt; the first conveyor belt and the second conveyor belt are respectively located at the two ends of the oil pool, and the third conveyor belt is located above the oil roller, and the third conveyor belt can drive the corrugated cardboard to pass through the top of the oil roller.

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