Paperboard flattening device for corrugated paper processing

Abstract

The invention discloses a paperboard flattening device for corrugated paper processing, which relates to the technical field of corrugated paper board processing and comprises a worktable and a pressure mechanism mounted above the worktable. The two spacing-adjustable limiting baffle plates are arranged on the upper surface of the workbench; the two groups of blowing mechanisms are arranged in the limiting baffle, are used for balancing the pressure of each layer of corrugated board and can slide back and forth along the interior of the limiting baffle; the driving mechanism is arranged on the lower surface of the workbench and is used for adjusting the sliding paths of the two groups of blowing mechanisms; air pressure fields which are sequentially enhanced from bottom to top are formed in the limiting baffles through the blowing mechanisms, reliable reverse supporting force is provided for lower-layer paperboards, pressure balance of all the layers of paperboards is achieved, the flattening effect is better, and fiber structures in the paperboards are protected. And meanwhile, the vacancy of an air source can be supplemented in time, and the stable state of the air pressure is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated cardboard processing, and specifically to a cardboard flattening device for corrugated paper processing. Background Art

[0002] Corrugated cardboard is a composite cardboard made by bonding one or more layers of corrugated paper between several layers of paper or cardboard, and is used to manufacture corrugated cartons. It is composed of a face paper, a liner paper, a core paper, and corrugated paper processed into a corrugated shape, and is bonded together. It can be divided into single-sided corrugated cardboard, three-layer corrugated cardboard, five-layer corrugated cardboard, seven-layer corrugated cardboard, etc. according to the number of layers.

[0003] During the production process of corrugated cardboard, due to the forming of corrugations and the bonding of each layer of cardboard and other technological operations, there may be some unevenness on its surface, such as corrugation undulations, cardboard wrinkles, etc. Therefore, it is necessary to flatten the processed corrugated cardboard to make the cardboard surface smooth and flat, improve its appearance quality, make the packaging more beautiful, and enhance the overall image of the product. After the flattening treatment, the thickness of the corrugated cardboard can be made more uniform and the size more stable. Such cardboard can better withstand pressure and impact during packaging and transportation.

[0004] Hydraulic flattening devices are currently widely used flattening equipment. They use a hydraulic system to apply pressure to flatten the cardboard. This type of device has good flattening effects and adjustable pressure characteristics. However, in actual applications, it is found that the pressure applied by the flattening device is transmitted to each layer of corrugated cardboard in a top-down order. During this process, due to the inherent voids inside the corrugated cardboard, the cardboard will undergo a certain degree of deformation during the flattening process. The upper layer of cardboard first undergoes elastic deformation, which will absorb a part of the pressure, resulting in an increase in the pressure transmitted to the lower layer of cardboard. As the pressure continues to be transmitted, the pressure borne by the bottom layer of cardboard is the sum of the pressure applied by the upper layer of cardboard and the reaction force generated by its own deformation. Therefore, the bottom layer of cardboard bears a greater pressure, which may cause the bottom layer of cardboard to bear excessive pressure. Excessive pressure may crush the fiber structure inside the corrugated cardboard, causing irreversible deformation and making it impossible to return to its original state later.

[0005] In view of the above problems, it is urgent to innovate and design on the basis of the original flattening device. Summary of the Invention

[0006] The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single. Specifically, the purpose of the present invention is to provide a cardboard flattening device for corrugated paper processing to solve the problem proposed in the above background art that the pressure on the lower layer of cardboard is greater than that on the upper layer of cardboard, resulting in damage to the internal structure of the corrugated cardboard.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cardboard flattening device for corrugated paper processing, comprising a workbench and a pressure mechanism installed above the workbench, and also comprising two limit baffles with adjustable spacing arranged on the upper surface of the workbench, two groups of blowing mechanisms arranged inside the limit baffles for balancing the pressure of each layer of corrugated paperboard and capable of reciprocatingly sliding along the inside of the limit baffles, and a driving mechanism arranged on the lower surface of the workbench for adjusting the sliding paths of the two groups of blowing mechanisms; A high-pressure gas cylinder is provided on the lower surface of the workbench, and a three-way valve for regulating the gas flow rate is installed on the top of the high-pressure gas cylinder.

[0008] Preferably, each group of the blowing mechanism comprises a plurality of parallel distributed storage plates, both sides of the storage plates are movably connected to an X-telescopic frame through an axle rod, and the outer sides of the plurality of storage plates are slidably connected to a limit rod; The uppermost storage plate is threadedly connected with a lead screw, and the lead screw is rotated to make the X-telescopic frame equidistantly telescopic, further driving a plurality of parallel storage plates to be equidistantly adjusted.

[0009] Preferably, a plurality of air nozzles are inserted into each of the storage plates, and the sizes of the plurality of air nozzles are exactly the same, and the number of the air nozzles in each storage plate is stacked in sequence from top to bottom.

[0010] Preferably, a shunt pipe is installed on the outside of each storage plate at a position corresponding to the air nozzle, the inner side of the shunt pipe is connected to the air nozzle through a conduit, and the outer side of the shunt pipe is plugged with a hose.

[0011] Preferably, the driving mechanism includes a long rod rotatably connected to the inner wall of the workbench, a lever arranged on the long rod for moving the long rod to swing, and a threaded rod threadedly connected to the lever. The bottom of the lever is slidably connected to a rotating rod, and the threaded rod and the rotating rod are rotatably connected, and the output shaft of the driving motor is installed at the end of the rotating rod.

[0012] Preferably, three slide grooves are provided on the surface of the long rod, one of which is arranged on the left side of the middle of the long rod, and the lever passes through the slide groove at this position and is slidably connected with the long rod, and the lever is driven to rotate and displace by the rotation of the rotating rod, so that the long rod can swing back and forth; The other two slide grooves are respectively arranged at the two ends of the long rod, and two protrusions are respectively slidably connected to the positions of the other two slide grooves corresponding to the storage plates.

[0013] Preferably, the lower surface of the bottom storage plate and the protrusion are welded, and the lower surface of the bottom storage plate is also equipped with an auxiliary pulley slidably connected along the bottom of the inner wall of the limit baffle; The two groups of blowing mechanisms move relative to each other through the reciprocating swing of the long rod.

[0014] Preferably, a plurality of telescopic rods are connected between the two limit baffles, and the upper surfaces of the plurality of telescopic rods are located in the same horizontal plane, and a gap is provided between two adjacent telescopic rods, and the gap between the two telescopic rods at the middle position is larger than that at other positions; The inner walls of the two limit baffles are welded with a plurality of support rods which are distributed at equal intervals.

[0015] Preferably, the pressure mechanism comprises a bracket, at least two parallel hydraulic rods are connected to the top of the bracket by bolts, and a pressure plate is installed on the piston rod at one end of the hydraulic rod by bolts.

[0016] Preferably, the three-way valve includes two exhaust ports, and the two exhaust ports are respectively threadedly connected to two delivery pipes, through which the gas in the high-pressure gas cylinder is delivered to the hose and then delivered to a plurality of gas nozzles through the diverter pipe.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The gas from the high-pressure gas cylinder is stably delivered to the space between the two limit baffles through the blowing mechanism. The inner wall of each storage board is provided with a number of air nozzles, which cooperate with the extension and contraction of the X-telescopic frame to drive each storage board to achieve equal spacing of expansion or folding and superposition, so as to finely control the overall coverage height of all storage boards to adapt to corrugated cardboards of different thicknesses and heights, so that a number of air nozzles are aimed at the fiber structure layer in the middle of the corrugated cardboard for precise blowing, forming a stable and uniform air pressure field in the limit baffle, providing reliable reverse support for the cardboard, and avoiding excessive pressure on the lower cardboard.

[0018] In addition, the number of air nozzles is arranged in an increasing manner from top to bottom in each storage board, and the number of air flows in a layer of storage boards also increases successively, so that the air pressure is successively enhanced from bottom to top, so that the air pressure on the lower cardboard increases layer by layer. Even when the pressure mechanism provides a large pressure, the blowing mechanism can effectively prevent the lower layers of cardboard from being subjected to excessive pressure, thereby achieving pressure balance on each layer of corrugated cardboard, which can ensure that the corrugated cardboard is subjected to sufficient pressure and the flattening effect is better, and can also ensure that the pressure of each layer of cardboard is balanced, and will not damage the fiber structure inside the corrugated cardboard.

[0019] Moreover, by the rotational displacement of the driving mechanism's lever, the long rod is driven to swing, and the long rod drives the lever block to move, further driving the two groups of blowing mechanisms to move relative to each other. This not only expands the coverage of the gas, but also ensures the stability of the air pressure. The reciprocating sliding of the blowing mechanism makes the airflow coverage wider, ensuring that the air pressure accurately covers the target area, avoiding ineffective blowing, and improving energy utilization efficiency. At the same time, the reciprocating sliding of the two groups of blowing mechanisms can replenish the vacancies of the gas source in time and maintain the stable state of the air pressure. Brief Description of the Drawings

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the blowing mechanism and the driving mechanism of the present invention.

[0022] Figure 3 This is a schematic diagram of the structure of the blowing mechanism of the present invention after swinging.

[0023] Figure 4 This is a schematic diagram of the front structure of the storage board of the present invention.

[0024] Figure 5 This is a schematic diagram of the back structure of the storage board of the present invention.

[0025] Figure 6 This is a schematic diagram of the driving mechanism of the present invention.

[0026] Figure 7 This is a schematic diagram of the limit baffle of the present invention.

[0027] In the figure: 1, workbench; 2, pressure mechanism; 201, support; 202, hydraulic rod; 203, pressing plate; 3, limit baffle; 301, telescopic rod; 302, support rod; 4, blowing mechanism; 401, storage board; 402, X-shaped telescopic frame; 403, lead screw; 404, jet nozzle; 405, shunt pipe; 406, hose; 407, limit rod; 5, driving mechanism; 501, long rod; 502, lever; 503, threaded rod; 504, rotating rod; 505, driving motor; 506, convex block; 6, high-pressure gas cylinder; 7, three-way valve; 8, conveying pipeline. Detailed Embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0029] Please refer to Figures 1 to 7 , the present invention provides a technical solution: a cardboard flattening device for corrugated paper processing, including a workbench 1 and a pressure mechanism 2 installed above the workbench 1, and further including two limit baffles 3 with adjustable spacing on the upper surface of the workbench 1, two groups of blowing mechanisms 4 arranged inside the limit baffles 3 for equalizing the pressure of each layer of corrugated cardboard and capable of reciprocatingly sliding along the inside of the limit baffles 3, and a driving mechanism 5 arranged on the lower surface of the workbench 1 for adjusting the sliding path of the two groups of blowing mechanisms 4; The lower surface of the workbench 1 is provided with a high-pressure gas cylinder 6, and a three-way valve 7 for regulating the gas flow rate is installed on the top of the high-pressure gas cylinder 6.

[0030] It should be noted that the high-pressure gas cylinder 6 stably supplies gas to the blowing mechanism 4. The blowing mechanism 4 transports the gas between the two limiting baffles 3, and through reciprocating sliding, the gas coverage range is wider. Thus, each layer of corrugated cardboard within the limiting baffle 3 is subjected to an upward air pressure, which cooperates with the pressure applied by the top pressure mechanism 2 to form a two-way pressure, making the force on each layer of the cardboard more balanced. It can not only ensure that the corrugated cardboard receives sufficient pressure and has a better flattening effect, but also ensure that the pressure on each layer of cardboard is balanced and will not damage the fiber structure inside the corrugated cardboard.

[0031] In addition, the driving mechanism 5 can regulate the sliding path of the blowing mechanism 4 as needed, further adjusting the gas coverage range of the blowing gas, ensuring that the air pressure accurately covers the target area, avoiding ineffective blowing, and improving the energy utilization efficiency.

[0032] In this embodiment, as Figure 2 and Figure 5 shown, each group of blowing mechanisms 4 includes a plurality of parallel distribution placement plates 401. Both sides of the placement plate 401 are respectively movably connected with an X telescopic frame 402 through a shaft rod, and a limiting rod 407 is slidably connected to the outside of the plurality of placement plates 401.

[0033] The placement plate 401 located is threadedly connected with a lead screw 403. By rotating the lead screw 403, the X telescopic frame 402 is telescopically adjusted at equal intervals, further driving a plurality of parallel placement plates 401 to be adjusted at equal intervals.

[0034] It should be noted that each placement plate 401 is connected to the X telescopic frame 402 through a shaft rod. A handle is provided at the top of the lead screw 403. Rotating the handle can drive the lead screw 403 to rotate, driving the topmost placement plate 401 to move up and down in parallel, and further causing the X telescopic frame 402 to expand and contract, driving each placement plate 401 to be unfolded or folded and stacked at equal intervals, thereby finely regulating the overall covering height of all placement plates 401 to adapt to corrugated cardboard of different thicknesses and heights.

[0035] In addition, a sliding connection method is adopted between the lowermost placement plate 401 and the limiting baffle 3 to ensure that the position of the lowermost placement plate 401 remains constant during the adjustment of the lead screw 403, and the upper placement plates 401 are unfolded or folded in sequence.

[0036] In this embodiment, as Figure 4 shown, a plurality of jet nozzles 404 are inserted into each placement plate 401, and the sizes of the plurality of jet nozzles 404 are exactly the same, and the number of jet nozzles 404 inside each placement plate 401 is stacked in sequence from top to bottom.

[0037] A shunt pipe 405 is installed on the outside of each storage plate 401 at a position corresponding to the air nozzle 404 . The inner side of the shunt pipe 405 is connected to the air nozzle 404 via a conduit, and a hose 406 is inserted on the outer side of the shunt pipe 405 .

[0038] It should be noted that the inner wall of each storage board 401 is provided with a plurality of air nozzles 404, through which air is blown toward the fiber structure layer in the middle of the corrugated cardboard. At the same time, a shunt pipe 405 is installed at the position corresponding to the air nozzle 404 on the outside of the storage board 401. The inner side of the shunt pipe 405 is connected to the air nozzle 404 through a conduit, and the outer side is connected with a hose 406. The hose 406 is connected to the high-pressure gas cylinder 6 to form a complete air flow channel. The air flow is stably delivered to the inside of the corrugated cardboard through the plurality of air nozzles 404, forming a stable and uniform air pressure field in the limit baffle 3, providing a reliable reverse support force for the cardboard.

[0039] In addition, the standardized-size air nozzles 404 ensure that the air flow velocity ejected from each air nozzle 404 is consistent when blowing out air, which further ensures that the air pressure distribution on the corrugated cardboard is more uniform. The increasing number of air nozzles 404 makes the air pressure increase from bottom to top, so that the air pressure on the lower cardboard increases layer by layer. Even if the pressure mechanism 2 provides a large pressure, the blowing mechanism 4 can effectively prevent the lower layers of cardboard from being subjected to excessive pressure, thereby achieving pressure balance on each layer of corrugated cardboard.

[0040] In this embodiment, if Figure 1 As shown, the driving mechanism 5 includes a long rod 501 rotatably connected to the inner wall of the workbench 1, a lever 502 arranged on the long rod 501 for swinging the long rod 501, and a threaded rod 503 threadedly connected to the lever 502. A rotating rod 504 is slidably connected to the bottom of the lever 502. The threaded rod 503 and the rotating rod 504 are rotatably connected, and the output shaft of the driving motor 505 is installed at the end of the rotating rod 504.

[0041] It should be noted that the drive mechanism 5 is mainly controlled by the drive motor 505 to start and stop. When processing corrugated cardboard of smaller size, the drive mechanism 5 can be turned off. For corrugated cardboard of larger size, the drive motor 505 will drive the rotating rod 504 to rotate after it is started. The rotation of the rotating rod 504 will then drive the lever 502 to rotate synchronously and move, and the long rod 501 will swing back and forth, so as to further adjust the coverage area of the blowing assembly and ensure that the air pressure coverage range is wider to adapt to corrugated cardboard of different specifications.

[0042] In addition, the position of the lever 502 can be adjusted by rotating the threaded rod 503. The position of the lever 502 determines the swing amplitude of the long rod 501. The larger the swing amplitude, the larger the sliding range of the blowing mechanism 4, and the wider the gas coverage range. The smaller the swing amplitude, the smaller the sliding range, and the gas coverage range becomes narrower accordingly.

[0043] Specifically, when the lever 502 approaches the rotation center of the rotating rod 504, its rotation inner diameter reaches the minimum, and the swing amplitude of the long rod 501 is also correspondingly minimized. Conversely, when the lever 502 moves away from the rotation center, the swing amplitude reaches the maximum. The specific position of the lever 502 can be flexibly adjusted according to the size of the corrugated cardboard.

[0044] In this embodiment, if Figure 6 As shown, three sliding grooves are opened on the surface of the long rod 501, one of which is set on the left side of the middle part of the long rod 501. The lever 502 passes through the sliding groove at this position and is slidably connected with the long rod 501. The rotation of the rotating rod 504 drives the lever 502 to rotate and move, and further makes the long rod 501 swing back and forth.

[0045] The other two slide grooves are respectively disposed at two ends of the long rod 501 , and two protrusions 506 are slidably connected to the positions of the other two slide grooves corresponding to the storage plates 401 .

[0046] In this embodiment, if Figure 2 and Figure 3 As shown, the lower surface of the lowest storage plate 401 is welded to the protrusion 506 , and an auxiliary pulley is also installed on the lower surface of the lowest storage plate 401 slidably connected along the bottom of the inner wall of the limiting baffle 3 .

[0047] The two groups of blowing mechanisms 4 move relative to each other through the reciprocating swing of the long rod 501 .

[0048] It should be pointed out that three sliding grooves are provided on the surface of the long rod 501, and the lever 502 passes through the central sliding groove to achieve sliding connection with the long rod 501. When the lever 502 rotates, the central sliding groove provides the lever 502 with necessary movement space. In the sliding grooves at both ends, the protrusion 506 is slidingly connected, and the protrusion 506 is connected to the storage plate 401 at the bottom of the blowing mechanism 4. When the lever 502 rotates, the protrusion 506 is displaced, further driving the two groups of blowing mechanisms 4 to move relative to each other, which not only expands the coverage of the gas, but also ensures the stability of the air pressure. The auxiliary pulley can assist the storage plate 401 to slide stably and reduce the friction between the limit baffle 3.

[0049] Specifically, when the blowing mechanism 4 on the left slides backward, the blowing mechanism 4 on the right slides forward, and vice versa. The sliding directions are opposite, and the positions of the two groups of blowing mechanisms 4 are in dynamic change, and the moving directions are always opposite. This design can timely supplement the vacancy of the air source and maintain the stable state of the air pressure.

[0050] In this embodiment, as Figure 1 and Figure 7 shown, several telescopic rods 301 are connected between the two limit baffles 3, and the upper surfaces of the several telescopic rods 301 are located on the same horizontal plane, and there is a gap between two adjacent telescopic rods 301, and the gap between the two telescopic rods 301 in the middle position is larger than that in other positions; A plurality of support rods 302 are welded to the inner walls of the two limit baffles 3 at equal intervals.

[0051] It should be noted that the two limit baffles 3 accurately limit the two sides of the corrugated cardboard to ensure that the corrugated cardboard will not tilt or shift during the operation of the blowing assembly. The two limit baffles 3 are connected by a plurality of telescopic rods 301. These telescopic rods 301 are located on the same horizontal plane and together with the middle support rod 302 form a stable lower support panel. In addition, the inner walls of the limit baffles 3 in this embodiment are designed with a plurality of air grooves to facilitate the gas of the blowing mechanism 4 to smoothly pass through the limit baffles 3 and act on the hollow area inside the corrugated cardboard.

[0052] Moreover, the gap between the middle telescopic rods 301 is larger, and the middle support rod 302 only covers the central position. After the two limit baffles 3 on both sides approach each other, the telescopic rods 301 contract, and the gap between two adjacent telescopic rods 301 in the middle position leaves a certain space for the movement of the convex block 506.

[0053] In addition, it should be particularly emphasized that in this embodiment, the telescopic rod 301 adopts a telescopic mechanism with a certain resistance, and the friction coefficient between the telescopic inner rod and the telescopic outer rod is relatively high, ensuring that the friction force between the two exceeds the air pressure generated by the blowing device. Therefore, in the absence of external force, even when the blowing mechanism 4 works, the telescopic rod 301 will not easily displace, and the positions of the two limit baffles 3 on both sides remain static.

[0054] In this embodiment, as Figure 1 shown, the pressure mechanism 2 includes a bracket 201, and at least two parallel hydraulic rods 202 are connected to the top of the bracket 201 by bolts. The piston rod at one end of the hydraulic rod 202 is installed with a pressing plate 203 by bolts.

[0055] It should be noted that by using the telescopic movement of the piston rod of the hydraulic rod 202, the pressing plate 203 is driven to move up and down, thereby applying pressure to the corrugated cardboard to make it flat. The piston rod of the hydraulic rod 202 is movably connected to the pressing plate 203 through bolts. Facing cardboard of different sizes, by replacing the pressing plate 203, a perfect fit with the cardboard can be ensured, so as to achieve a better flattening effect.

[0056] In this embodiment, as Figure 1 and Figure 2 shown, the three-way valve 7 includes two exhaust ports, and two conveying pipes 8 are respectively threadedly connected to the two exhaust ports. The gas in the high-pressure gas cylinder 6 is conveyed into the hose 406 through the conveying pipe 8 and is conveyed into a plurality of jet nozzles 404 through the shunt pipe 405.

[0057] It should be noted that a valve rod is also installed on the three-way valve 7. By rotating the valve rod, the air flow velocity can be controlled. When the cardboard is large in size and thick in thickness, the air flow velocity is increased, so the air pressure in the limit baffle 3 increases. On the contrary, when the cardboard is small in size, the air flow velocity is decreased, so the air pressure of the limit baffle 3 decreases. The conveying pipe 8 in this embodiment is made of a flexible material. When the blowing mechanism 4 slides, the conveying pipe 8 can be displaced appropriately.

[0058] Working principle: When using this cardboard flattening device for corrugated paper processing, first, the distance between the two limit baffles 3 is adjusted according to the size of the corrugated cardboard. When the size is small, the limit baffle 3 slides towards the center, and vice versa, it expands towards both sides, so that the distance between the limit baffles 3 fits the size of the corrugated cardboard. Its detailed limiting scheme is well-known technology in the field; Secondly, the corrugated cardboard to be flattened is carried onto the telescopic rod 301 between the limit baffles 3 and is supported by the telescopic rod 301. Before flattening the first screw corrugated cardboard, the lead screw 403 is rotated to adjust the vertical distance between each placement plate 401 and the jet nozzle 404. When the lead screw 403 rotates forward, the top placement plate 401 moves downward, squeezing the X telescopic frame 402 to compress, and further driving each placement plate 401 to approach. When the lead screw 403 is rotated in the reverse direction, the top placement plate 401 moves upward, the X telescopic frame 402 expands, and further drives each placement plate 401 to expand, which can be adapted to corrugated cardboard with a relatively large size. According to the overall thickness of this stack of corrugated cardboard, the overall covering height of the placement plate 401 is adjusted; Next, start the hydraulic rod 202 of the pressing mechanism 2. The piston rod of the hydraulic rod 202 drives the pressing plate 203 to move downward to squeeze the corrugated cardboard, and start the flattening work on the corrugated cardboard. At the same time, open the three-way valve 7, and convey the air source in the high-pressure gas cylinder 6 to the hose 406 through the conveying pipeline 8. After being conveyed through the hose 406 to each shunt pipe 405, it is shunted to a number of jet nozzles 404 in sequence through the shunt pipe 405. The jet nozzles 404 start to blow air on the hollow fiber layer of the corrugated cardboard clamped by the inner wall of the limit baffle 3, and form a reverse pressure through the air pressure to offset the pressure of the upper cardboard; At this time, due to the layout of the increasing number of jet nozzles 404 from top to bottom, the number of air currents in each layer of the placement plate 401 also increases in sequence, so that the air pressure increases from bottom to top. As a result, the air pressure borne by the lower cardboard increases layer by layer, the air pressure received by the bottommost layer of cardboard is the largest, and it becomes smaller and smaller as it goes up, achieving the balance of the pressure on each layer of corrugated cardboard.

[0059] Finally, according to the front and back width of the corrugated cardboard, adjust the reciprocating sliding range of the two groups of blowing components. Adjust by rotating the threaded rod 503. When the threaded rod 503 rotates forward, the dial rod 502 approaches the rotation center point of the rotating rod 504. When the rotating rod 504 rotates, the rotation inner diameter of the dial rod 502 reaches the minimum, and the swing amplitude of the long rod 501 is also correspondingly the smallest, adapting to small-sized corrugated cardboard. On the contrary, when the threaded rod 503 rotates in reverse, the dial rod 502 moves away from the rotation center point, the swing amplitude of the long rod 501 reaches the maximum, and the rotation inner diameter of the dial rod 502 reaches the maximum, adapting to large-sized corrugated cardboard. At the same time, adjust the three-way valve 7 according to the size of the corrugated cardboard to control the air flow rate. Finally, store the flattened corrugated cardboard on one side of the workbench 1 and perform the next group of flattening work.

[0060] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cardboard flattening device for corrugated paper processing, comprising a workbench (1) and a pressure mechanism (2) installed above the workbench (1), characterized in that: It also includes two limit baffles (3) with adjustable spacing arranged on the upper surface of the workbench (1), two sets of blowing mechanisms (4) arranged inside the limit baffles (3) for balancing the pressure of each layer of corrugated paperboard and capable of reciprocatingly sliding along the inside of the limit baffles (3), and a driving mechanism (5) arranged on the lower surface of the workbench (1) for adjusting the sliding path of the two sets of blowing mechanisms (4); A high-pressure gas cylinder (6) is provided on the lower surface of the workbench (1), and a three-way valve (7) for regulating the gas flow rate is installed on the top of the high-pressure gas cylinder (6).

2. The cardboard flattening device for corrugated paper processing according to claim 1, characterized in that: Each group of the blowing mechanisms (4) comprises a plurality of storage plates (401) distributed in parallel, both sides of the storage plates (401) being movably connected to an X-shaped telescopic frame (402) via an axle rod, and the outer sides of the plurality of storage plates (401) are slidably connected to a limit rod (407); The storage plate (401) located at the top is threadedly connected to a screw rod (403), and the X-telescopic frame (402) is equidistantly telescoped by rotating the screw rod (403), further driving a plurality of parallel storage plates (401) to be equidistantly adjusted.

3. A cardboard flattening device for corrugated paper processing according to claim 2, characterized in that: A plurality of air nozzles (404) are inserted into the interior of each storage plate (401), and the sizes of the plurality of air nozzles (404) are completely the same, and the number of the air nozzles (404) inside each storage plate (401) is stacked in sequence from top to bottom.

4. A cardboard flattening device for corrugated paper processing according to claim 2, characterized in that: A shunt pipe (405) is installed on the outside of each storage plate (401) at a position corresponding to the air nozzle (404); the inner side of the shunt pipe (405) is connected to the air nozzle (404) via a conduit; and the outer side of the shunt pipe (405) is plugged with a hose (406).

5. A cardboard flattening device for corrugated paper processing according to claim 2, characterized in that: The driving mechanism (5) comprises a long rod (501) rotatably connected to the inner wall of the workbench (1), a lever (502) arranged on the long rod (501) for moving the long rod (501) to swing, and a threaded rod (503) threadedly connected to the lever (502); a rotating rod (504) is slidably connected to the bottom of the lever (502); the threaded rod (503) and the rotating rod (504) are rotatably connected; and an output shaft of a driving motor (505) is mounted at the end of the rotating rod (504).

6. The cardboard flattening device for corrugated paper processing according to claim 5, wherein: The surface of the long rod (501) is provided with three sliding grooves, one of which is arranged on the left side of the middle of the long rod (501). The lever (502) passes through the sliding groove at this position and is slidably connected to the long rod (501). The lever (502) is driven to rotate and move by the rotation of the rotating rod (504), thereby further causing the long rod (501) to swing back and forth. The other two slide grooves are respectively arranged at the two ends of the long rod (501), and two protrusions (506) are slidably connected to the positions of the other two slide grooves corresponding to the storage plate (401).

7. A cardboard flattening device for corrugated paper processing according to claim 6, characterized in that: The lower surface of the bottom storage plate (401) and the protrusion (506) are welded, and the lower surface of the bottom storage plate (401) is also equipped with an auxiliary pulley that is slidably connected along the bottom of the inner wall of the limit baffle (3); The two groups of blowing mechanisms (4) perform relative motion through the reciprocating swing of the long rod (501).

8. A cardboard flattening device for corrugated paper processing according to claim 1, characterized in that: A plurality of telescopic rods (301) are connected between the two limiting baffles (3), and the upper surfaces of the plurality of telescopic rods (301) are located on the same horizontal plane, and there is a gap between adjacent two telescopic rods (301), and the gap between the two telescopic rods (301) in the middle position is larger than that in other positions; A plurality of support rods (302) which are equally spaced are welded to the inner walls of the two limiting baffles (3).

9. The cardboard flattening device for corrugated paper processing according to claim 1, wherein: The pressure mechanism (2) includes a bracket (201), at least two parallel hydraulic rods (202) are connected to the top of the bracket (201) by bolts, and a pressing plate (203) is installed on the piston rod at one end of the hydraulic rod (202) by bolts.

10. A cardboard flattening device for corrugated paper processing according to claim 4, characterized in that: The three-way valve (7) includes two exhaust ports, and two conveying pipes (8) are respectively threadedly connected to the two exhaust ports. The gas in the high-pressure gas cylinder (6) is conveyed into the hose (406) through the conveying pipe (8), and is conveyed into a plurality of jet nozzles (404) through the shunt pipe (405).

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