A corrugated board production device

Abstract

The application discloses a corrugated board production device, which comprises an oil pool and an oiling roller, wherein the oiling roller comprises an outer roller, an oiling plate and plungers; the outer roller is rotatably arranged in the oil pool and the lower half part of the outer roller is immersed in the oil liquid; 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 liquid; the upper end of the oiling plate extends out of the oil liquid along the rotation direction of the outer roller and extends to the position close to the contact position of the corrugated board and the outer roller; the plungers are uniformly distributed on the outer roller along the diameter direction of the outer roller; the plungers can reciprocate relative to the outer roller; the reciprocating amounts of the plungers relative to the outer roller are the same; the plungers are retracted below the outer surface of the outer roller to form an oil cavity and keep the retracted state when the outer roller rotates to the front of the oiling plate and passes through the oiling plate; and the plungers extend to the outer surface of the outer roller at the contact position of the corrugated board and the outer roller. The device can uniformly apply the oil liquid on the corrugated board and improve the production quality of the corrugated board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of corrugated paper, in particular to a corrugated paperboard production device. BACKGROUND

[0002] The corrugated paperboard is a board-shaped object bonded by the face paper and the corrugated paper in wave shape processed by the corrugated roller, which is generally divided into single corrugated paperboard and double corrugated paperboard. The invention and application of the corrugated paperboard has a history of more than one hundred years, which has the advantages of low cost, light weight, easy processing, large strength, excellent printing adaptability, and convenient storage and transportation, and more than 80% of the corrugated paperboard can be recycled, the corrugated paperboard can be used for packaging of food or digital products, is relatively environmentally friendly, and is widely used.

[0003] In order to have better waterproof effect of the corrugated paperboard, the corrugated paperboard needs to be oil treated in the production process, but the existing corrugated paperboard oil production device has the following problems:

[0004] 1. At present, when different width corrugated paperboards are oil processed, since the oil outlet width of the oiling roller on the existing corrugated paperboard production device is fixed, different models of corrugated paperboard production devices need to be used for processing, which increases the cost of using the device and is not conducive to the production of corrugated paperboards of different specifications;

[0005] 2. When the existing corrugated paperboard production device is oil processed, the surface oil thickness of the oiling roller will be uneven due to reasons such as wear and deformation of the machine parts, uneven oil supply or environmental temperature, which makes the oiling roller easy to have uneven problem when coating oil on the surface of the corrugated paperboard, thereby affecting the production quality of the corrugated paperboard;

[0006] 3. When the existing corrugated paperboard production device is oil processed, the corrugated paperboard after oiling generally needs to be dried, in the prior art, the interval time between the oiling and drying processes is long, which is easy to cause the corrugated paperboard to be soaked and deformed, and since the oil temperature is low, the time required for drying the corrugated paperboard is long, which affects the production efficiency of the corrugated paperboard. SUMMARY

[0007] In view of the above problems, the present application provides a corrugated paperboard production device to overcome the above problems or at least partially solve the above problems.

[0008] The roller is adapted to move the outer roller towards the oiling plate, and the roller is adapted to move the outer roller towards the oiling plate, whereby the roller is adapted to move the outer roller towards the oiling plate, whereby the roller is adapted to move the outer roller towards the oiling plate, whereby the roller is adapted to move the outer roller towards the oiling plate, and the roller is adapted to move the outer roller towards the oiling plate, whereby the roller is adapted to move the outer roller towards the oiling plate, and the roller is adapted to move the outer roller towards the oiling plate, whereby the roller is adapted to move the outer roller towards the oiling plate, and the roller is adapted to move the outer roller towards the oiling plate,

[0009] Preferably, the oiling roller is further provided with an inner roller; the inner roller is coaxially arranged inside the outer roller, and the outer roller rotates relative to the inner roller, and the outer surface of the inner roller is provided with a first working surface and a second working surface along the circumferential direction, and 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.

[0010] Preferably, along the axial direction of the outer roller, the outer roller can perform axial reciprocating movement relative to the oil pool.

[0011] The transmission gear of the second end is connected with the transmission gear of the second end in a straight line to the top of the gear of the second end and the transmission gear of the second end is connected with the transmission gear of the second end in a straight line to the top of the gear.

[0012] 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 at intervals of 180 degrees.

[0013] 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 surface of one end of the plunger close to the outer surface of the outer roller.

[0014] Preferably, the outer surface of the inner roller is further 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 with the outer roller to the third working surface, 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.

[0015] Preferably, the oiling roller is further provided with a control ring; along the axial direction of the inner roller, one end of the inner roller is provided with the first working surface and the second working surface as a working end, and the other end of the inner roller is a control end, the control ring is sleeved on the control end of the inner roller and can reciprocate, and the outer diameter of the control ring is equal to the outer diameter of the second working surface; the plunger comprises a first plunger, a second plunger and a third plunger, 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, the second plunger is arranged at the end of the outer roller corresponding to 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 arranged between the first plunger and the second plunger in sequence, 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 of the inner roller, the spring drives the third baffle of the third plunger to abut against the adjacent first baffle or the fourth baffle of the adjacent third plunger, and the spring drives the second baffle of the second plunger to abut against the fourth baffle of the adjacent third plunger.

[0016] Preferably, the oiling roller is further provided with a push rod; the push rod is connected with the control ring to drive the control ring to reciprocate at the control end.

[0017] Preferably, the corrugated board production device is further provided with a first conveying belt, a second conveying belt and a third conveying belt; the first conveying belt and the second conveying belt are respectively located at two ends of the oil pool, and the third conveying belt is located above the oiling roller, and the third conveying belt can drive the corrugated board to pass above the oiling roller.

[0018] The corrugated board production device has the following beneficial technical effects:

[0019] 1. In the present application, a plurality of telescopic plungers are uniformly arranged on the oiling roller, the plungers are controlled to rotate towards the corrugated board when the outer roller comes out of the oil liquid and shrink below the outer surface of the outer roller to form an oil cavity containing oil liquid, the oil liquid is brought to the position where the corrugated board contacts with the outer roller by the oiling plate, and then the plungers are controlled to extend to coat the oil liquid on the corrugated board, a plurality of plungers with the same telescopic amount can carry the same volume of oil liquid, which ensures the uniformity of the oil liquid coated on the corrugated board and improves the production quality of the corrugated board.

[0020] 2. In the present invention, an axially reciprocating oil roller is provided so that the oil roller can reciprocate along the axial direction while rotating, and due to the positional relationship between the gear pins in each oil roller, the oil rollers can reciprocate in an staggered manner, thereby making the corrugated cardboard evenly stressed along the axial direction of the oil roller without deviation, so that the oil roller can evenly apply oil to the corrugated cardboard in the axial direction, thereby improving the production quality of the corrugated cardboard.

[0021] 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 the 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 scope of use of the equipment.

[0022] 4. In the present invention, by arranging an air flow channel 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 corrugated cardboard is coated with oil, which can pre-dry the oil, increase the temperature of the oil, reduce the time required for subsequent drying, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the cross-sectional structure of the corrugated cardboard production device of this embodiment;

[0024] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0025] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the BB direction;

[0026] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along CC direction;

[0027] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure along the DD direction;

[0028] Figure 6 for Figure 2 The schematic diagram of the partially enlarged structure at position I in the middle;

[0029] Figure 7 for Figure 2 Schematic diagram of the locally enlarged structure at point II in the middle. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Combine Figures 1 to 7 As 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 its axial and circumferential directions. Along the diameter of the outer roller 3, the plungers 5 can reciprocate and extend relative to the outer roller 3, and the amount of extension and contraction of the multiple plungers 5 relative to the outer roller 3 is the same. Before the plungers 5 rotate with the outer roller 3 to the position of the oiling plate 4, they retract below the outer surface of the outer roller 3 to form an oil chamber 6 and remain in this retracted state as they pass through the oiling plate 4. When the plungers 5 pass the oiling plate 4 and move to the contact point between the corrugated cardboard and the outer roller 3, they extend again until they are flush with the outer surface of the outer roller 3, thereby draining the oil from the oil chamber 6.

[0032] In this embodiment, a plurality of retractable plungers are evenly distributed on the oiling roller, and the plungers are controlled to retract to below the outer surface of the outer roller as the outer roller emerges from the oil and rotates toward the corrugated cardboard to form an oil cavity for containing the oil. The oiling plate is used to bring the oil to the position where the corrugated cardboard and the outer roller form contact, and then the plungers are controlled to extend to apply the oil to the corrugated cardboard. 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 made the same, thereby ensuring that the oil is evenly applied to the corrugated cardboard and improving the production quality of the corrugated cardboard.

[0033] Combine Figure 4 As shown, in the corrugated cardboard 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. 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 via a spring 10. The spring 10 can push the plunger 5 relative to the outer roller 3 to abut against the outer surface of the inner roller 7. When the plunger 5 rotates with the outer roller 3 to the first working surface 8, the spring 10 pushes the plunger 5 to contract, forming an oil chamber 6. When the plunger 5 rotates with the outer roller 3 to the second working surface 9, the second working surface 9 pushes the plunger 5 to overcome the spring 10 and extend until it is flush with the outer surface of the outer roller 3.

[0034] In the oil roller of this 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 movement of the plunger can be controlled by means of 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.

[0035] 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, while 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. This ensures 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 cardboard and the outer roller 3, that is, Figure 3 When the outer roller 3 is at the highest position shown, the oil chamber 6 has been separated from the oiling plate 4 and can smoothly apply the oil on the corrugated cardboard.

[0036] In addition, combined Figure 2 As shown, in the corrugated cardboard production apparatus of this embodiment, outer roller 3 can also reciprocate axially relative to oil pool 1 along its axial direction. Thus, during the process of applying oil to the corrugated cardboard, the axial reciprocating movement of the outer roller can further improve the uniformity of the oil application and enhance the production quality of the corrugated cardboard.

[0037] Combine Figure 2As shown, in the corrugated cardboard production device of this embodiment, the oiling roller 2 is also provided with a fixed shaft 11, a rotating shaft 12, a first bevel gear 13, and a second bevel gear 14. 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 via a flat key and extends to be fixedly connected to the oil pool 1. 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 via a flat key, so that the rotating shaft 12 can drive the outer roller 3 to rotate, and the outer roller 3 can reciprocate relative to 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 a gear pin 15 is eccentrically provided on the end face of the first bevel gear 13. The outer roller 3 partially extends into the interior 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. 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.

[0038] 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 is 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, and then pushing the outer roller to carry the inner roller to move axially back and forth 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.

[0039] Combine 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 intervals of 180 degrees.

[0040] The multiple oiling rollers can meet the oiling operation on large area of the corrugated paperboard, and in the case that the multiple oiling rollers rotate synchronously, the gear pins in the adjacent two oiling rollers are arranged at intervals of 180 degrees, so that the adjacent two oiling rollers form axial movement in opposite directions, the corrugated paperboard across the adjacent two outer rollers is uniformly stressed in the axial direction of the oiling rollers, and the corrugated paperboard does not deviate, so that the oiling rollers can uniformly apply oil on the corrugated paperboard in the axial direction, and the production quality of the corrugated paperboard is further improved.

[0041] In combination Figure 2 As shown in the figure, in the corrugated paperboard production equipment of the embodiment, the inner roller 7 is further provided with an air inlet 19, and the plunger 5 is provided with an air flow channel 20. The air inlet 19 is in communication with the space between the inner roller 7 and the outer roller 3, and one end of the air flow channel 20 is in communication with 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 surface of the outer surface of the outer roller 3 close to the plunger 5. Figure 3 As shown in the figure, the air flow channel 20 is arranged along the axial direction of the plunger 5, the lower end is in communication with the space between the inner roller 7 and the outer roller 3, and the upper end extends along the plunger 5 to the position close to the outer surface of the outer roller 3 and extends out from the side surface.

[0042] At this time, after the plunger rotates to the second working surface with the outer roller to apply oil to the corrugated paperboard, the air flow channel extends out of the outer surface of the outer roller by controlling the plunger, so that hot air is introduced to the outer surface of the outer roller, and the corrugated paperboard with oil is pre-dried by hot air, the temperature of the oil is increased, the time required for subsequent drying is reduced, and the production efficiency is improved.

[0043] In combination Figure 3 As shown in the figure, in the corrugated paperboard production equipment of the 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 of the corrugated paperboard and the outer roller 3. When the plunger 5 rotates to the third working surface 21 with the outer roller 3, the third working surface 21 pushes the plunger 5 to move to the position where the air flow channel 20 extends out of the outer surface of the outer roller 3 against the spring 10.

[0044] By arranging the third working surface on the outer surface of the inner roller, the plunger can be automatically controlled to continue to extend out after oiling to pre-dry the corrugated paperboard with oil during the relative rotation of the inner roller and the outer roller, and the controllability of the corrugated paperboard production equipment is further improved.

[0045] In combination Figure 2As shown, in the corrugated cardboard 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 serves as the working end and is provided with the aforementioned working surface, while the other end of the inner roller 7 serves as the control end. The control ring 22 is sleeved on the control end of the inner roller 7 and is capable of reciprocating movement. The outer diameter of the control ring 22 is equal to the outer diameter of the second working surface 9.

[0046] At the same time, 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 provided 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 multiple third plungers 53 are sequentially arranged between the first plunger 51 and the second plunger 52. 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. Specifically, under the driving action of the spring 10, the lower end of the first plunger 51 maintains contact with the outer surface of the working end of the inner roller 7. Under the driving action of the spring 10, the third baffle 531 of the third plunger 53 abuts against the first baffle 511 of the adjacent first plunger 51 or the fourth baffle 532 of the adjacent third plunger 53. Under the driving action of the spring 10, the second baffle 521 of the second plunger 52 abuts against the fourth baffle 532 of the adjacent third plunger 53.

[0047] In the corrugated cardboard production equipment of this embodiment, the first baffle, the second baffle, the third baffle and the fourth baffle are used to connect the first plunger, the second plunger and the third plunger. When the first plunger extends, that is, when the first plunger rotates from the first working surface to the second working surface or from the second working surface to the third working surface, the first baffle drives the adjacent third baffle to make the adjacent third plunger extend synchronously. When the third plunger extends, the fourth baffle of the third plunger can drive the adjacent third baffle on its left 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. On the contrary, when the spring pushes the first plunger to contract to 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 from contracting, and so on, so that the third plunger and the second plunger on the left side of the control ring cannot contract to form an oil chamber.

[0048] 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 scope of use of the equipment.

[0049] Combine 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 move back and forth and adjust the position of the control ring 22 .

[0050] Combine Figure 2 As shown, in this embodiment, since the contraction of the plunger to form the oil chamber requires a spring drive, a spring is provided on each plunger at the control end of the inner roller to ensure that any plunger in the area to the right of the control ring can contract to form the oil chamber. The plunger at the working end of the inner roller is always the working plunger, so only a partial spring is required. Of course, a spring can also be provided for each plunger.

[0051] Combine Figure 1 As shown, in the corrugated cardboard production device of this embodiment, a first conveyor belt 23, a second conveyor belt 24, and a third conveyor belt 25 are further provided. The first conveyor belt 23 and the second conveyor belt 24 are respectively located at the 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 cardboard to pass over the oil roller 2.

[0052] In addition, combined Figure 2 and Figure 5 As shown, the corrugated cardboard production device of this embodiment is further equipped with a motor 26, a sprocket 27, and a chain 28. The motor 26 is fixed to the oil pool 1 and connected to the rotating shaft 12 of one of the oiling rollers 2. A sprocket 27 is mounted and fixed to each rotating shaft 12, and the four sprockets 27 are connected by a chain 28. The motor can then drive the four oiling rollers 2 to rotate.

[0053] Combine Figures 1 to 7 As shown, the process of oil processing of the corrugated cardboard production device of this embodiment is as follows:

[0054] Step S1, preparation.

[0055] Add an appropriate 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. Use a hose to connect the hot air blower to the air inlet 19, so that the hot air enters the air flow channel 20 through the air inlet 19 and the space between the outer roller 3 and the inner roller 7. Control the push rod 30 to extend and retract. Adjust the position of the control ring 22 according to the width of the corrugated cardboard to be processed 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 27 and the chain 28, thereby driving the four outer rollers 3 to rotate. Figure 1 As shown, the outer roller 3 rotates in the clockwise direction, driving the plunger 5 thereon to rotate 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 plungers 5 on the control ring 22 and on the left side are 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.

[0056] Step S2: applying oil.

[0057] After completing the preparation work of step S1, the corrugated cardboard to be processed is placed on the first conveyor belt 23, and the corrugated cardboard 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 its highest position, the plunger 5 is pushed by the second working surface 9 to overcome the spring 10 and extend, pushing the oil in the oil chamber 6 out and applying it to the corrugated cardboard. At the same time, the rotating shaft 12 rotates 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 and the inner roller 7 to move axially back and forth relative to the oil pool 1. With the adjacent gear pins 15 set at 180 degrees, the four outer rollers 3 move back and forth in an staggered manner, 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 rollers 3, the oil is evenly applied to the corrugated cardboard, completing the oil application.

[0058] Step S3: heating and drying.

[0059] After the oil coating 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. The force is then 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, blowing hot air 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. Driven by the spring 10, all the plungers 5 contract until they are flush with the outer surface of the outer roller 3. The air flow channels 20 are re-blocked by the outer roller 3, completing the heating and drying work.

[0060] Step S4, conveying and unloading.

[0061] 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 cardboard production device, characterized in that: The oiling roller 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 filled with oil, the outer roller is rotatably arranged in the oil pool with its lower half 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 the contact position between the corrugated cardboard and the outer roller; The plurality of plungers are evenly distributed on the outer roller. The plungers can reciprocate and retract relative to the outer roller along the diameter direction of 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, retract to below the outer surface of the outer roller to form an oil cavity, and remain in the retracted state as they pass through the oiling plate. The plungers extend to be flush with the outer surface of the outer roller at the contact position between the corrugated cardboard and the outer roller. The oiling roller is further provided with an inner roller; the inner roller is coaxially arranged inside the outer roller, and the outer roller rotates relative to the inner roller, and the outer surface of the inner roller is provided with a first working surface and a second working surface along the circumferential direction, and 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 by 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; The oil roller is also provided with a control ring; along the axial direction of the inner roller, one end of the inner roller is provided with the first working surface and the second working surface as the working end, and the other end of the inner roller is provided with the 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 provided 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 provided at the outer roller corresponding to the The end portion of the control end, the lower end of the second plunger is provided with a second baffle facing the working end, and the 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 of the inner roller, the spring drives the third baffle of the third plunger to abut against 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 against the adjacent fourth baffle of the third plunger; Along the axial direction of the outer roller, the outer roller can perform axial reciprocating movement relative to the oil pool.

2. The corrugated board production device according to claim 1, characterized in that: The gear train is connected with the outer gear of the gear and the gear is connected with the gear of the gear train, and the gear train is connected with the gear of the gear train to the gear train of the gear train.

3. The corrugated board production device according to claim 2, 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.

4. 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.

5. The corrugated board production device according to claim 4, 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 with the outer roller to the third working surface, 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.

6. The corrugated board production device according to claim 1, characterized in that: 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 move back and forth at the control end.

7. 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 over the oil roller.

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