An automatic deviation rectification device and method for the dryer section of a corrugated cardboard production line

Abstract

The present invention discloses an automatic rectification device and method for the dryer section of a corrugated cardboard production line. The rectification device includes a fixed frame, a central rotating shaft is installed in the middle of the fixed frame, a deflection bracket is installed on the central rotating shaft, and the deflection bracket rotates around the central rotating shaft; a conveying component for driving the corrugated cardboard to move forward is installed on the deflection bracket, and at least one rotating rectification driving component for driving the deflection bracket to rotate is also installed between the fixed frame and the deflection bracket; the rotating rectification driving component drives the deflection bracket and the conveying component to rotate and align with the corrugated cardboard to be rectified; during the forward movement of the corrugated cardboard to be rectified, the rotating rectification driving component drives in the reverse direction to rectify the corrugated cardboard; the present invention realizes automatic rectification without manual operation, reduces the loss of corrugated cardboard and glue loss, thereby reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of the dryer production line of corrugated cardboard, and particularly relates to an automatic deviation rectification device and method for the dryer of a corrugated cardboard production line. Background Art

[0002] Corrugated cardboard, also known as corrugated board, is formed by bonding at least one layer of corrugated paper and one layer of linerboard. It has good elasticity and extensibility and is mainly used for manufacturing cartons, the sandwich of cartons, and other packaging materials for fragile goods.

[0003] The corrugated cardboard production line includes many devices, one of which is a double-sided machine. The main function of the double-sided machine is to bond the single-sided corrugated cardboard and the face paper obtained in the previous process of the production line to form corrugated cardboard. In the double-sided machine, after the single-sided corrugated cardboard and the face paper are bonded to form corrugated cardboard, it has to pass through a relatively long heating plate, which is used to heat and dry the cardboard. There is a conveyor belt on the heating plate, and each end of the conveyor belt is a transmission shaft. The transmission shaft rotates to drive the conveyor belt to move, so as to convey the cardboard from one end to the other end for the next process.

[0004] The technology for guiding and correcting the deviation of cardboard in the wet part of the corrugated cardboard production line is already very mature. However, after the cardboard is bonded and formed by the double-sided machine, there is still a long conveying distance from the heating plate to the slitting, stacking, and packing. At this time, the corrugated cardboard will still have the phenomenon of deviation. When the deviated cardboard enters the cross-cutting and longitudinal-cutting machine, it will cause excessive trimming of the corrugated cardboard and waste. This not only wastes corrugated cardboard but also wastes the adhesive glue, thus increasing the production cost. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defect of the deviation of corrugated cardboard in the prior art, and provide an automatic deviation rectification device and method for the dryer of a corrugated cardboard production line, which can realize automatic deviation rectification without manual operation, reduce the loss of corrugated cardboard and the loss of glue, and thus reduce the production cost.

[0006] To achieve the above purpose, the present invention provides an automatic deviation rectification device for the dryer of a corrugated cardboard production line, which includes a fixed frame. A central rotating shaft is installed in the middle of the fixed frame, and a deflection bracket is installed on the central rotating shaft. The deflection bracket rotates around the central rotating shaft. A conveying component for driving the corrugated cardboard to move forward is installed on the deflection bracket. At least one rotating deviation rectification driving component for driving the deflection bracket to rotate is also installed between the fixed frame and the deflection bracket. The rotating deviation rectification driving component drives the deflection bracket and the conveying component to rotate and align with the corrugated cardboard to be rectified. During the forward movement of the corrugated cardboard to be rectified, the rotating deviation rectification driving component drives in the reverse direction to rectify the corrugated cardboard.

[0007] Preferably, it also includes a deflection angle detection component for detecting the deflection angle of the corrugated cardboard to be corrected; the deflection angle detection component transmits the detection data to the rotation correction drive component, and the rotation correction drive component drives the deflection bracket and the conveying component to rotate to align with the corrugated cardboard to be corrected.

[0008] Preferably, a suspension ballast assembly for suspending and ballasting the corrugated cardboard is installed above the conveying assembly; the corrugated cardboard to be corrected passes between the conveying assembly and the suspension ballast assembly.

[0009] Preferably, the rotational deviation correction drive assembly is installed on one side of the central rotating shaft, and the rotational deviation correction drive assembly includes a first drive motor installed on a fixed frame, a screw rod which is transmission-connected to the first drive motor is installed at the end of the first drive motor, a telescopic rod is sleeved on the screw rod, and the end of the telescopic rod is fixedly connected to the deflection bracket.

[0010] Preferably, a plurality of support wheels are installed between the deflection bracket and the fixed frame, and the support wheels are installed on both sides of the central rotating shaft; the support wheels are arranged along a rotating arc; the fixed frame is provided with a support wheel groove adapted to the support wheel stroke, and the support wheel moves along the support wheel groove; the fixed frame is also provided with a plurality of limit blocks for limiting the support wheel, and the limit blocks are installed on both sides of the support wheel groove.

[0011] Preferably, the end transmission connection of the central shaft is provided with a rotation angle detection component for detecting the rotation angle of the central shaft; the rotation angle detection component is fixedly connected to the fixed frame via an L-shaped bracket; the rotation angle detection component is electrically connected to the first drive motor; and an origin detection element is installed on the fixed frame for detecting whether the deflection bracket is at the origin.

[0012] Preferably, the conveying assembly includes a conveying support plate mounted on the deflection bracket, a first groove is provided on the conveying support plate, an active conveying roller for driving the corrugated cardboard to be corrected to move forward is provided at the lower part of the first groove, one end of the active conveying roller is transmission-connected to a conveying motor, the conveying motor is fixedly mounted on the deflection bracket, and an inclined surface is provided on the conveying support plate for facilitating the entry of the corrugated cardboard to be corrected.

[0013] Preferably, the suspension ballast assembly includes a paper pressing rubber roller installed above the active conveying roller and corresponding to the active conveying roller. The corrugated cardboard to be rectified is installed between the active conveying roller and the paper pressing rubber roller. A vertical sliding block fixedly connected to the paper pressing rubber roller is installed at the end of the paper pressing rubber roller. A pressure driving cylinder is installed on the upper part of the vertical sliding block. The pressure driving cylinder drives the vertical sliding block and the paper pressing rubber roller to move vertically back and forth. Vertical guide rods are installed on both sides of the vertical sliding block. The vertical sliding block moves vertically back and forth along the vertical guide rods. Elastic elements are sleeved on the vertical guide rods. The elastic elements vertically support the vertical sliding block and the paper pressing rubber roller.

[0014] Preferably, a plurality of lifting driving cylinders are provided on the deflection bracket. The end of the lifting driving cylinder is fixedly connected to the conveying support plate to lift the conveying support plate, so that the corrugated cardboard is separated from the active conveying roller.

[0015] The present invention also provides an automatic rectification method for the dryer section of a corrugated cardboard production line, including the following steps:

[0016] Step S1: Manually input the rectification angle of the corrugated cardboard to be rectified, and the rectification angle is transmitted to the rotary rectification driving assembly;

[0017] Or use a deflection angle detection component to detect the rectification angle of the corrugated cardboard to be rectified, and transmit the detection data to the rotary rectification driving assembly;

[0018] Step S2: The rotary rectification driving assembly drives the deflection bracket and the conveying assembly to rotate around the central rotating shaft to align with the corrugated cardboard to be rectified;

[0019] Step S3: The conveying assembly drives the corrugated cardboard to be rectified to move forward; meanwhile, the rotary rectification driving assembly drives the deflection bracket and the conveying assembly to rotate reversely around the central rotating shaft to rectify the corrugated cardboard to be rectified; the deflection bracket returns to its original position.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the present invention, the deflection bracket is rotationally connected to the fixed frame through the central rotating shaft. The rotary rectification driving assembly drives the deflection bracket and the conveying assembly to rotate to align with the corrugated cardboard to be rectified; thus enabling the corrugated cardboard to be rectified to smoothly enter the conveying assembly and move forward under the drive of the conveying assembly; meanwhile, the rotary rectification driving assembly drives the deflection bracket and the conveying assembly to rotate reversely around the central rotating shaft to rectify the corrugated cardboard to be rectified; forcibly correcting the inclined angle of the corrugated cardboard and then conveying it into the slitter, thereby reducing the trimming loss and glue loss of the corrugated cardboard, and thus reducing the production cost. Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of an automatic deviation rectification device for the dryer section of a corrugated cardboard production line provided by the present invention;

[0024] Figure 2 It is a front view of an automatic deviation rectification device for the dryer section of a corrugated cardboard production line provided by the present invention;

[0025] Figure 3 is Figure 2 a schematic cross-sectional view taken along line A-A in;

[0026] Figure 4 It is a side view of an automatic deviation rectification device for the dryer section of a corrugated cardboard production line provided by the present invention;

[0027] Figure 5 It is a schematic structural diagram of the fixed frame provided by the present invention.

[0028] In the figure, it includes:

[0029] 1. Fixed frame; 2. Deflection bracket; 3. Central rotating shaft; 4. Conveyor assembly; 5. Rotary deviation rectification drive assembly; 6. Suspended ballast assembly; 51. First drive motor; 52. Lead screw; 53. Telescopic rod; 54. Support wheel; 55. Support wheel groove; 56. Limit block; 57. Rotary angle detection component; 58. L-shaped bracket; 59. Origin detection element; 41. Conveyor support plate; 42. First groove; 43. Active conveyor roller; 44. Conveyor motor; 45. Inclined slope; 61. Paper pressing rubber roller; 62. Vertical sliding block; 63. Pressure drive cylinder; 64. Elastic element; 65. Vertical guide rod; 46. Lifting drive cylinder. Detailed Embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are one embodiment of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] Embodiment 1

[0032] Please refer to Figures 1 to 5 , the present invention provides an automatic deviation rectification device for the finishing section of a corrugated cardboard production line.

[0033] First, a general description of the automatic deviation rectification device is given: After the corrugated cardboard is bonded and formed by a double-sided machine, due to long-distance transportation, the corrugated cardboard will be inclined or deviated to a certain extent, that is, the phenomenon that the side of the corrugated cardboard is not parallel to the conveyor belt; when the deviated corrugated cardboard enters the cross-cutting and longitudinal-cutting machine, it will cause excessive trimming of the corrugated cardboard, resulting in waste and loss, wasting both the corrugated cardboard and the adhesive glue; it also increases production costs.

[0034] Therefore, in order to improve the above defects, deviation rectification is carried out before the cross-cutting and longitudinal-cutting machine, and an automatic deviation rectification device is added. In this way, the automatic deviation rectification device rectifies the deviated corrugated cardboard, making the side of the corrugated cardboard as parallel as possible to the conveyor belt, thereby reducing the trimming distance and thus reducing waste.

[0035] As Figure 1 shown, the automatic deviation rectification device includes a fixed frame 1, which is fixedly installed on the ground and does not move. The fixed frame 1 is a frame structure; a central rotating shaft 3 is installed in the middle of the fixed frame 1, and the central rotating shaft 3 can rotate. A deflection bracket 2 is installed on the central rotating shaft 3, and the deflection bracket 2 rotates around the central rotating shaft 3; the deflection bracket 2 is installed above the fixed bracket 1. In the initial position, the deflection bracket 2 and the fixed bracket 1 are parallel to each other; at the same time, during the transportation of the device, in order to prevent the deflection bracket 2 from rotating randomly, the deflection bracket 2 and the fixed bracket 1 are fixedly connected together by steel plates and bolts, so as to facilitate transportation.

[0036] As Figure 1 shown, a conveying component 4 is installed on the deflection bracket 2. The conveying component 4 is used to drive the corrugated cardboard to be rectified to move forward, providing power for the forward movement of the corrugated cardboard and realizing the feeding of the corrugated cardboard; further, the entire conveying component 4 is installed on the deflection bracket 2 and rotates together with the deflection bracket 2.

[0037] As Figure 1 shown, at least one rotary deviation rectification driving component 5 for driving the deflection bracket 2 to rotate is also installed between the fixed frame 1 and the deflection bracket 2; specifically, under the drive of the rotary deviation rectification driving component 5, the deflection bracket 2 rotates around the central rotating shaft 3.

[0038] In order to adapt to the corrugated cardboard that has deviated on the conveyor belt, the rotary deflection correction drive component 5 drives the deflection bracket 2 and the conveying component 4 to rotate and align with the corrugated cardboard to be corrected; at this time, the deflection bracket 2 and the conveying component 4 have the same inclination angle as the corrugated cardboard to be corrected; the corrugated cardboard to be corrected enters the conveying component 4, and the conveying component 4 drives the corrugated cardboard to be corrected to move forward; at the same time, the rotary deflection correction drive component 5 drives the deflection bracket 2 and the conveying component 4 to rotate in the opposite direction around the central rotating shaft 3 to correct the corrugated cardboard to be corrected; the deflection bracket 2 returns to its original position; the corrugated cardboard that has passed the automatic deflection correction device is now parallel to the conveyor belt.

[0039] Furthermore, the deviation angle of the corrugated cardboard can be set to a fixed deflection value based on the statistical results of the production line, that is, experience, and the deflection value is transmitted to the rotary correction drive component 5; each corrugated cardboard to be corrected corresponds to a fixed deflection value, so the deflection bracket 2 rotates to a fixed deflection angle each time to adapt to the corrugated cardboard to be corrected.

[0040] Furthermore, the above-mentioned method of using a fixed input deflection value is simple and effective; however, it cannot be precisely applied to every corrugated cardboard to be corrected, and will still cause a certain amount of waste; so in the present embodiment, the automatic deflection correction device also includes a deflection angle detection component for detecting the deflection angle of the corrugated cardboard to be corrected; the deflection angle detection component can be installed on the fixed frame 1, detect the deflection angle of the corrugated cardboard to be corrected entering the automatic deflection correction device, and transmit the detection data to the rotary deflection correction drive component 5, the rotary deflection correction drive component 5 drives the deflection bracket 2 and the conveying component 4 to rotate and align with the corrugated cardboard to be corrected; in this way, the deflection value can be updated in real time according to each corrugated cardboard, the correction angle is more accurate, and the correction effect is better; in the present embodiment, the deflection angle detection component can be a CCD camera, which uses image recognition technology to determine the deflection value of the corrugated cardboard.

[0041] The first implementation mode of the rotational deviation correction drive component 5: the rotational deviation correction drive component 5 includes a first drive motor 51, which is connected to the central rotating shaft 3 by transmission, and the first drive motor 51 drives the central rotating shaft 3 to drive the deflection bracket 2 and the conveying component 4 to rotate, thereby adjusting the deflection angle of the deflection bracket 2 and the conveying component 4.

[0042] The second embodiment of the rotation correction drive assembly 5: the rotation correction drive assembly 5 is provided as one, and is installed on one side of the central shaft 3; specifically, as Figure 3As shown, the rotary deviation rectifying drive assembly 5 includes a first drive motor 51 installed on the fixed frame 1. A lead screw 52 that is in transmission connection with the first drive motor 51 is installed at the end of the first drive motor 51. A telescopic rod 53 is sleeved on the lead screw 52, and the end of the telescopic rod 53 is fixedly connected to the deflection bracket 2.

[0043] Specifically, when the first drive motor 51 drives the lead screw 52 to rotate forward, the telescopic rod 53 moves away from the first drive motor 51, pushing the deflection bracket 2 to rotate around the central rotating shaft 3 by the angle detected by the angle detection component, so as to align with the corrugated cardboard to be corrected.

[0044] In the deviation rectifying stage, the first drive motor 51 drives the lead screw 52 to rotate reversely, the telescopic rod 53 moves closer to the first drive motor 51, pushing the deflection bracket 2 to rotate back around the central rotating shaft 3, so as to correct the corrugated cardboard.

[0045] The third implementation manner of the rotary deviation rectifying drive assembly 5: It is the same as the second implementation manner, the difference is that: the first drive motor 51, the lead screw 52 and the telescopic rod 53 are replaced with a drive cylinder with lower cost; when the drive cylinder extends, the deflection bracket 2 is deflected, and when the drive cylinder retracts, the deflection bracket 2 is rotated back to the correct position.

[0046] The fourth implementation manner of the rotary deviation rectifying drive assembly 5: It is the same as the second implementation manner, the difference is that: two rotary deviation rectifying drive assemblies 5 are provided, which are symmetrically arranged on both sides of the central rotating shaft 3 respectively; the two rotary deviation rectifying drive assemblies 5 move synchronously, making the rotation movement of the deflection bracket 2 more stable and accurate.

[0047] In order to make the drive of the rotary deviation rectifying drive assembly 5 more accurate, as Figure 5 shown; a rotation angle detection component 57 for detecting the rotation angle of the central rotating shaft 3 is in transmission connection at the end of the central rotating shaft 3; the rotation angle detection component 57 is fixedly connected to the fixed frame 1 through an L-shaped bracket 58; the rotation angle detection component 57 is electrically connected to the first drive motor 51; the rotation angle detection component 57 transmits the detected rotation angle to the first drive motor 51 to control the drive feed of the first drive motor 51, so as to achieve closed-loop control; the rotation angle is accurate; thereby directly improving the deviation rectifying accuracy, reducing the loss of corrugated cardboard and the loss of glue, and thus reducing the production cost.

[0048] Furthermore, the fixed frame 1 is provided with an origin detection element 59 for detecting whether the deflection bracket 2 is at the origin. The origin detection element 59 may be a proximity switch. When the deflection bracket 2 is parallel to the fixed frame 1, it is the original position, i.e., the origin, and the origin detection element 59 outputs a signal. When the automatic deviation correction device is started, the relative position of the deflection bracket 2 and the fixed frame 1 needs to be corrected, and the deflection bracket 2 needs to be rotated back to a position parallel to the fixed frame 1, i.e., back to the origin position, and the origin detection element 59 outputs a signal.

[0049] like Figure 3 and Figure 5 As shown, in order to make the movement of the deflection bracket 2 more stable, four support wheels 54 are further installed between the deflection bracket 2 and the fixed frame 1, and the support wheels 54 are installed on both sides of the central rotating shaft 3; the support wheels 54 are arranged along the rotating arc; the support wheels 54 support the deflection bracket 2, so that the support and movement are stable; reducing the friction force during the rotation process can also reduce the driving force required by the first driving motor 51.

[0050] Furthermore, the fixed frame 1 is provided with a support wheel groove 55 adapted to the stroke of the support wheel 54, and the support wheel 54 moves along the support wheel groove 55; the support wheel groove 55 is also arranged along a rotating arc; the support wheel groove 55 also serves as a guide and limit for the support wheel 54, so that the support wheel 54 moves smoothly and is not easy to rotate out of range; the rotation stroke of the support wheel 54 is between 0° and 10°.

[0051] Furthermore, the fixed frame 1 is also provided with a plurality of limit blocks 56 for limiting the support wheel 54 , and the limit blocks 56 are installed on both sides of the support wheel groove 55 .

[0052] like Figure 1 As shown, the conveying assembly 4 includes a conveying support plate 41 installed on the deflection bracket 2, and a first groove 42 is provided on the conveying support plate 41. An active conveying roller 43 for driving the corrugated cardboard to be corrected to move forward is installed at the lower part of the first groove 42, and one end of the active conveying roller 43 is transmission-connected to a conveying motor 44; specifically, the conveying motor 44 drives the active conveying roller 43 to rotate, and at the same time, the active conveying roller 43 passes through the first groove 42 to drive the corrugated cardboard placed on the conveying support plate 41 to move forward.

[0053] Furthermore, the conveying motor 44 is fixedly mounted on the deflection bracket 2, and the conveying motor 44 is connected to the active conveying roller 43 through a belt drive; a tension adjustment device is also provided on one side of the belt; the conveying motor 44 can also be connected to the conveyor belt signal, so as to control the active conveying roller 43 to have the same speed as the conveyor belt, thereby realizing synchronous transportation and reducing the error of correction.

[0054] Furthermore, an inclined slope 45 facilitating the entry of the corrugated cardboard to be rectified is provided on the conveying support plate 41.

[0055] As Figure 1 and Figure 4 As shown, in order to make it more convenient to convey the corrugated cardboard to be rectified, a suspension ballast assembly 6 for suspending and ballasting the corrugated cardboard is installed above the conveying assembly 4; the corrugated cardboard to be rectified passes between the conveying assembly 4 and the suspension ballast assembly 6; the suspension ballast assembly 6 presses the corrugated cardboard tightly, thus facilitating the conveyance of the corrugated cardboard.

[0056] Specifically, the suspension ballast assembly 6 includes a paper pressing rubber roller 61 installed above the active conveying roller 43 and corresponding to the active conveying roller 43. The paper pressing rubber roller 61 has no power and is driven by the active conveying roller 43. The corrugated cardboard to be rectified is installed between the active conveying roller 43 and the paper pressing rubber roller 61.

[0057] Further, in order to facilitate the adjustment of the acting force of the paper pressing rubber roller 61 on the corrugated cardboard, a vertical sliding block 62 fixedly connected to the paper pressing rubber roller 61 is installed at the end of the paper pressing rubber roller 61. A pressure driving cylinder 63 is installed on the upper part of the vertical sliding block 62. The pressure driving cylinder 63 drives the vertical sliding block 62 and the paper pressing rubber roller 61 to move vertically back and forth; in order to make the movement of the vertical sliding block 62 more stable, several sliders are installed inside the vertical sliding block 62. The sliders are sleeved on the guide rails. The guide rails are fixed on the deflection bracket 2. Through the limitation of the guide rails and the sliders, the vertical movement of the vertical sliding block 62 is more stable.

[0058] Furthermore, vertical guide rods 65 are installed on both sides of the vertical sliding block 62. The vertical sliding block 62 moves vertically back and forth along the vertical guide rods 65. Elastic elements 64 are sleeved on the vertical guide rods 65. The elastic elements 64 provide vertical support for the vertical sliding block 62 and the paper pressing rubber roller 61; the elastic elements 64 are springs; for the movement principle of the suspension ballast assembly 6, the pressure driving cylinder 63 drives the paper pressing rubber roller 61 and the vertical sliding block 62 downward. The paper pressing rubber roller 61 presses downward on the corrugated cardboard. The elastic elements 64 provide an opposite elastic supporting force, so that the corrugated cardboard can be pressed tightly and not be flattened, having a certain balance; the pressing acting force is also beneficial to the forward transportation of the corrugated cardboard; making the pressure on the corrugated cardboard more flexible and more adaptable; and can also adapt to various different specifications of corrugated cardboard

[0059] As Figure 1As shown in the figure, when the corrugated cardboard does not need to be rectified, the automatic rectification device is placed on the automatic production line and cannot be randomly carried and disassembled, but can only be left idle. First, the deflection bracket 2 returns to the origin position and does not deflect. Second, there are four lifting drive cylinders 46 on the deflection bracket 2, which are respectively installed around the conveying support plate 41 to support the four end points of the conveying support plate 41. The end of the lifting drive cylinder 46 is fixedly connected to the conveying support plate 41. When the lifting drive cylinder 46 extends, it lifts the conveying support plate 41, causing the corrugated cardboard to be lifted as well, so that the height of the conveying support plate 41 is higher than that of the active conveying roller 43, thus separating the bottom of the corrugated cardboard from the active conveying roller 43. At the same time, the pressure drive cylinder 63 drives the paper pressing rubber roller 61 and the vertical sliding block 62 upward to lift the paper pressing rubber roller 61, separating it from the upper part of the corrugated cardboard. In this way, driven by the speed of the conveyor belt and the forward movement of the corrugated cardboard itself, it can smoothly pass through the automatic rectification device, eliminating the need to carry and disassemble the automatic rectification device, making the production line applicable to different corrugated cardboards and improving the adaptability of the automatic rectification device and the production line.

[0060] Embodiment 2

[0061] Please refer to Figures 1 to 5 , the present invention provides an automatic rectification method for the cadre of a corrugated cardboard production line.

[0062] It includes the following steps:

[0063] Step S1: Manually input the rectification angle of the corrugated cardboard to be rectified into the automatic rectification device, and the rectification angle is transmitted to the rotary rectification component 5.

[0064] The rectification angle can be the most suitable angle selected from a large number of statistical deviation angles of the corrugated cardboard, which can be the average value of the deviation angles. This can cover most of the corrugated cardboards to be rectified, thereby reducing the cutting amount and the trimming distance, and thus reducing waste.

[0065] As an improvement above, in this embodiment, a deflection angle detection component is used to detect the rectification angle of the corrugated cardboard to be rectified and transmit the detection data to the rotary rectification component 5. The deflection angle detection component can be a CCD camera, which uses image recognition technology to determine the deflection value of the corrugated cardboard. In this way, the deflection value can be updated in real time according to each corrugated cardboard, the rectification angle is more accurate, and the rectification effect is better.

[0066] Step S2: The rotary rectification component 5 drives the deflection bracket 2 and the conveying component 4 to rotate around the central rotating shaft 3 to align with the corrugated cardboard to be rectified.

[0067] Step S3: The conveying assembly 4 drives the corrugated cardboard to be rectified to move forward; meanwhile, the suspended ballast assembly 6 above performs suspended ballasting on the corrugated cardboard to be rectified; by the mutual cooperation of the pressure driving cylinder 63 and the elastic element 64, the corrugated cardboard can be both pressed tightly and not easily flattened, and can also be conveniently transported forward;

[0068] The conveying motor 44 drives the active conveying roller 43 to rotate, thereby driving the corrugated cardboard placed on the conveying support plate 41 to move forward synchronously and at the same speed.

[0069] Meanwhile, the rotary rectifying assembly 5 drives the deflection bracket 2 and the conveying assembly 4 to rotate reversely around the central rotating shaft 3 to rectify the corrugated cardboard to be rectified; the deflection bracket 2 returns to its original position. In this way, the corrugated cardboard to be rectified is forcibly rotated back and then conveyed into the slitter, thereby reducing the trimming loss and glue loss of the corrugated cardboard, and thus reducing the production cost.

[0070] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. An automatic deviation rectification device for the dryer section of a corrugated cardboard production line, characterized in that: The invention comprises a fixed frame (1), wherein a central rotating shaft (3) is arranged in the middle of the fixed frame (1), a deflection bracket (2) is arranged on the central rotating shaft (3), and the deflection bracket (2) rotates around the central rotating shaft (3); a conveying assembly (4) for driving a corrugated cardboard to move forward is arranged on the deflection bracket (2), and at least one rotation correction driving assembly (5) for driving the deflection bracket (2) to rotate is arranged between the fixed frame (1) and the deflection bracket (2); the rotation correction driving assembly (5) drives the deflection bracket (2) and the conveying assembly (4) to rotate so as to align with the corrugated cardboard to be corrected; and when the corrugated cardboard to be corrected moves forward, the rotation correction driving assembly (5) drives the rotation in the reverse direction so as to correct the corrugated cardboard; A suspended ballast component (6) for suspending and ballasting the corrugated cardboard is installed above the conveying component (4); the corrugated cardboard to be corrected passes between the conveying component (4) and the suspended ballast component (6); The conveying assembly (4) comprises a conveying support plate (41) mounted on the deflection bracket (2), the conveying support plate (41) being provided with a first groove (42), and an active conveying roller (43) for driving the corrugated paperboard to be deflected to move forward being mounted below the first groove (42). The suspended ballast assembly (6) comprises a paper pressing rubber roller (61) installed above the active conveying roller (43) and corresponding to the active conveying roller (43); the corrugated paperboard to be corrected is installed between the active conveying roller (43) and the paper pressing rubber roller (61); a vertical sliding block (62) fixedly connected to the paper pressing rubber roller (61) is installed at the end of the paper pressing rubber roller (61); a pressure driving cylinder (63) is installed on the upper part of the vertical sliding block (62); the pressure driving cylinder (63) drives the vertical sliding block (62) and the paper pressing rubber roller (61) to reciprocate vertically; The deflection bracket (2) is provided with a plurality of lifting drive cylinders (46), the ends of which are fixedly connected to the conveying support plate (41) to lift the conveying support plate (41) so that the corrugated paperboard is separated from the active conveying roller (43); It also includes a deflection angle detection component for detecting the deflection angle of the corrugated paperboard to be corrected; the deflection angle detection component transmits the detection data to the rotation correction drive component (5), and the rotation correction drive component (5) drives the deflection bracket (2) and the conveying component (4) to rotate to align with the corrugated paperboard to be corrected.

2. The automatic rectification equipment for the dryer section of a corrugated cardboard production line according to claim 1, wherein: The rotational deviation correction drive assembly (5) is mounted on one side of the central rotating shaft (3), and comprises a first driving motor (51) mounted on a fixed frame (1); a screw rod (52) drivingly connected to the first driving motor (51) is mounted at the end of the first driving motor (51); a telescopic rod (53) is sleeved on the screw rod (52); and a terminal end of the telescopic rod (53) is fixedly connected to the deflection bracket (2).

3. The automatic rectification equipment for the dryer section of a corrugated cardboard production line according to claim 2, characterized in that: A plurality of support wheels (54) are further installed between the deflection bracket (2) and the fixed frame (1). The support wheels (54) are installed on both sides of the central rotating shaft (3). The support wheels (54) are arranged along a rotating arc. A support wheel groove (55) adapted to the stroke of the support wheels (54) is provided on the fixed frame (1). The support wheels (54) move along the support wheel groove (55). A plurality of limit blocks (56) for limiting the support wheels (54) are further provided on the fixed frame (1). The limit blocks (56) are installed on both sides of the support wheel groove (55).

4. An automatic rectification device for the dryer section of a corrugated cardboard production line according to claim 2, characterized in that: A rotation angle detection component (57) for detecting the rotation angle of the central rotating shaft (3) is drivingly connected to the end of the central rotating shaft (3). The rotation angle detection component (57) is fixedly connected to the fixed frame (1) through an L-shaped bracket (58). The rotation angle detection component (57) is electrically connected to the first drive motor (51). An origin detection element (59) for detecting whether the deflection bracket (2) is at the origin is installed on the fixed frame (1).

5. An automatic rectification device for the dryer section of a corrugated cardboard production line according to claim 1, characterized in that: One end of the active conveying roller (43) is drivingly connected to a conveying motor (44). The conveying motor (44) is fixedly installed on the deflection bracket (2). An inclined slope (45) facilitating the entry of the corrugated cardboard to be rectified is provided on the conveying support plate (41).

6. The automatic deviation rectification device for the dryer section of a corrugated cardboard production line according to claim 5, characterized in that: Vertical guide rods (65) are installed on both sides of the vertical sliding block (62). The vertical sliding block (62) reciprocates vertically along the vertical guide rods (65). Elastic elements (64) are sleeved on the vertical guide rods (65). The elastic elements (64) vertically support the vertical sliding block (62) and the paper pressing rubber roller (61).

7. An automatic deviation rectification method for the dryer section of a corrugated cardboard production line, characterized in that: An automatic rectification device for the dryer section of a corrugated cardboard production line according to any one of claims 1 to 6; It further includes the following steps: Step S1: Manually input the rectification angle of the corrugated cardboard to be rectified. The rectification angle is transmitted to the rotation rectification drive assembly (5); Alternatively, use a deflection angle detection component to detect the rectification angle of the corrugated cardboard to be rectified and transmit the detection data to the rotation rectification drive assembly (5); Step S2: The rotation rectification drive assembly (5) drives the deflection bracket (2) and the conveying assembly (4) to rotate around the central rotating shaft (3) to align with the corrugated cardboard to be rectified; Step S3: The conveying assembly (4) drives the corrugated cardboard to be rectified to move forward. At the same time, the rotation rectification drive assembly (5) drives the deflection bracket (2) and the conveying assembly (4) to rotate in the reverse direction around the central rotating shaft (3) to rectify the corrugated cardboard to be rectified. The deflection bracket (2) returns to its original position.

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