Corrugated board flattening device for corrugated paper processing
By designing a cleaning mechanism for the upper and lower surfaces of the pressure plate that is easy to disassemble and clean, combined with the forward and reverse conveying of the conveyor belt and a stable guiding structure, the problem of intaglio printing caused by the accumulation of impurities in the corrugated cardboard flattening device is solved, thereby improving the flattening quality and efficiency of corrugated cardboard.
Patent Information
- Application Number
- CN202520453696.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-17
Smart Images

Figure CN223835162U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of corrugated cardboard flattening devices, and in particular to a corrugated cardboard flattening device for corrugated paper processing. Background Technology
[0002] The descriptions in this section provide background information relating to this disclosure and do not constitute prior art.
[0003] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper. It has good elasticity and extensibility and is mainly used to manufacture cartons, carton fillings, and other packaging materials for fragile goods. The corrugations of corrugated cardboard resemble connected arches, arranged side by side and supporting each other to form a triangular structure, which has good mechanical strength. In the production process of common corrugated cardboard, multiple layers need to be bonded together. In order to secure the multiple layers of corrugated cardboard together, a corrugated cardboard flattening device is required.
[0004] After long-term use, dust and other impurities will accumulate on the pressure plate of the corrugated cardboard flattening device due to factors such as electrostatic adsorption. The flattened corrugated cardboard is prone to impurities and indentations, which will affect the yield of the flattened corrugated cardboard. Utility Model Content
[0005] The purpose of this utility model is to provide a corrugated cardboard flattening device for corrugated paper processing, which has the advantages of easy disassembly and removal of the pressure plate, and cleaning of the upper and lower surfaces of the pressure plate before use with the cleaning mechanism. It solves the technical problem that the corrugated cardboard is prone to impurity intaglio printing after flattening due to impurities adhering to the pressure plate.
[0006] This utility model provides a corrugated cardboard flattening device for corrugated paper processing, comprising:
[0007] The conveyor belt is arranged horizontally;
[0008] Baffles are fixedly installed at the front and rear edges of the upper surface of the conveyor belt;
[0009] A flattening mechanism is fixedly connected to the upper middle part of the inner side of the front and rear baffles;
[0010] The conveyor belt carries a corrugated paper flattening assembly, which includes:
[0011] The U-shaped groove has its sidewalls slidably fitted against the inner wall of the baffle on the same side.
[0012] A pressure plate is slidably inserted into the U-shaped groove;
[0013] The flattening mechanism presses the pressure plate to move and flatten the corrugated paper stacked in the U-shaped groove;
[0014] The inner sides of the front and rear baffles are fixedly equipped with a cleaning mechanism for the upper and lower surfaces of the pressure plate.
[0015] As a further optimization, in order to clean the impurities adhering to the upper and lower surfaces of the easily removable pressure plate before use, and to avoid affecting the quality of flattening the corrugated paper, the pressure plate upper and lower surface cleaning mechanism includes:
[0016] A vertical plate, which is fixedly assembled to the inner end of the front and rear baffles;
[0017] A strip window is provided in the middle of the vertical plate along its length;
[0018] The top and bottom surfaces of the strip window are both fixedly connected to strip plates by bolts;
[0019] The upper and lower strips are fixed with sponge layers pasted on their opposite sides;
[0020] As the pressure plate passes through the upper and lower surfaces of the strip window, the sponge layer wipes and cleans the upper and lower surfaces of the pressure plate.
[0021] As a further optimization, in order to allow the corrugated paper flattening components on both sides to move to the flattening mechanism and be flattened by the forward and reverse conveying of the conveyor belt, when one corrugated paper flattening component is working, the other corrugated paper flattening component that has just finished working will load corrugated paper, so as to realize the uninterrupted operation of corrugated paper flattening. Corrugated paper flattening components are conveyed on both the left and right sides of the conveyor belt.
[0022] The conveyor belt alternately transports the corrugated paper flattening components on both sides to the flattening mechanism where they are squeezed;
[0023] The inner sides of both the front and rear baffles are fixedly equipped with a pressure plate upper and lower surface cleaning mechanism;
[0024] The cleaning mechanism for the upper and lower surfaces of the pressure plate is used in conjunction with the pressure plate on the same side.
[0025] As a further optimization, in order to shield one side of the corrugated paper placed into the U-shaped groove and facilitate the neat stacking of the corrugated paper in the U-shaped groove, a corrugated paper shielding strip is longitudinally fixedly connected to the side of the U-shaped groove near the flattening mechanism.
[0026] As a further optimization, in order to control the power supply of the electric push rods after the pressure plate moves and flattens the corrugated paper stacked in the U-shaped groove, the electric push rods on both sides extend and abut against the front and rear sides of the inner wall of the U-shaped groove for limiting and fixing, keeping the pressure plate in its current position to continuously flatten the corrugated paper stacked below. The pressure plate includes:
[0027] The horizontal plate body has mounting holes evenly distributed on its front and rear ends;
[0028] An electric push rod is attached and fixed in the mounting hole, and its telescopic end abuts against the inner wall of the U-shaped groove on the same side after it extends.
[0029] A rechargeable battery is embedded in the sidewall of the mounting hole and is electrically connected to the electric push rod in parallel.
[0030] As a further optimization, in order to slide and guide the corrugated paper flattening assembly placed on the conveyor belt and ensure the smooth conveying of the corrugated paper flattening assembly, a rolling guide structure is uniformly assembled along the length direction on the inner sides of the front and rear baffles, which includes:
[0031] A strip-shaped groove is longitudinally formed on the inner side of the baffle;
[0032] The inner cavity of the strip-shaped groove is longitudinally rotatably fitted with a circular roller, and the inner end of the circular roller extends out of the strip-shaped groove to fit the outer wall of the corrugated paper flattening component.
[0033] As a further optimization, in order to press the corrugated paper stacked in the U-shaped groove by pressing the pressure plate downwards, the flattening mechanism includes:
[0034] A horizontal plate is fixedly connected to the upper middle part of the inner side surface of the front and rear baffles;
[0035] A hydraulic cylinder is fixedly mounted on the middle of the upper surface of the horizontal plate, and a push plate is fixedly mounted through the lower end of the cylinder.
[0036] As a further optimization, in order to longitudinally guide the pressure plate placed in the U-shaped groove, a pressure plate sliding guide structure is also included, which includes a sliding groove.
[0037] The inner wall of the U-shaped groove is longitudinally provided with sliding grooves on both the front and rear sides.
[0038] The front and rear ends of the pressure plate are fixedly fitted with sliders corresponding to the slide grooves on the same side;
[0039] The slider is longitudinally slidably assembled within the corresponding groove.
[0040] As a further optimization, in order to improve the stability of the device placement, support plates are provided at both the front and rear of the lower end of the conveyor belt, and the width of the support plates gradually increases from top to bottom.
[0041] A crossbeam is fixedly connected to the lower end of the inner side of the front and rear support plates along the length direction.
[0042] As a further optimization, in order to effectively absorb and disperse the vibration generated during the operation of the device and reduce the impact of vibration on the device itself and its surrounding environment, and to provide a more stable support, wear-resistant rubber pads help prevent unnecessary movement or tilting of the device during operation and ensure stable operation of the device. Wear-resistant rubber pads are attached and fixed to the bottom surface of the support plate.
[0043] This utility model provides an improved corrugated cardboard flattening device for corrugated paper processing, which has the following improvements and advantages compared with the prior art:
[0044] The corrugated paper flattening assembly is moved to the flattening mechanism by a conveyor belt. The flattening mechanism presses down the pressure plate in the U-shaped groove to flatten the corrugated paper stacked in the U-shaped groove. The pressure plate in the corrugated paper flattening assembly can be easily pulled out from the U-shaped groove. Before use, the upper and lower surfaces of the pressure plate are cleaned by the cleaning mechanism to remove impurities adhering to the upper and lower surfaces, so as to avoid the appearance of impurity indentations on the flattened corrugated paperboard. Attached Figure Description
[0045] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0046] Figure 1 This is a schematic diagram of the structure of this utility model;
[0047] Figure 2 This is a schematic diagram of the cleaning mechanism for the upper and lower surfaces of the pressure plate of this utility model;
[0048] Figure 3 This is a schematic diagram of the corrugated paper flattening assembly and the sliding guide structure of the pressure plate of this utility model.
[0049] Figure 4 This is a schematic diagram of the pressure plate structure of this utility model;
[0050] Figure 5 This is a schematic diagram of the flattening mechanism of this utility model;
[0051] Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0052] Explanation of reference numerals in the attached figures:
[0053] 1-Conveyor belt, 2-Baffle, 3-Flattening mechanism, 31-Horizontal plate, 32-Hydraulic cylinder, 33-Push plate, 4-Corrugated paper flattening assembly, 41-U-shaped groove, 42-Pressure plate, 421-Horizontal plate body, 422-Mounting hole, 423-Electric push rod, 424-Rechargeable battery, 43-Corrugated paper shielding strip, 5-Pressure plate upper and lower surface cleaning mechanism, 51-Vertical plate, 52-Strip window, 53-Strip plate, 6-Rolling guide structure, 61-Strip groove, 62-Round roller, 7-Horizontal beam, 8-Wear-resistant rubber pad, 9-Pressure plate sliding guide structure, 91-Slide groove, 92-Slider. Detailed Implementation
[0054] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0056] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0057] Please see Figure 1-6This utility model provides a technical solution: a corrugated cardboard flattening device for corrugated paper processing, comprising:
[0058] Conveyor belt 1 is arranged horizontally;
[0059] Baffles 2 are fixedly installed at the front and rear edges of the upper surface of conveyor belt 1;
[0060] A flattening mechanism 3 is fixedly connected to the upper middle part of the inner side of the front and rear baffles 2;
[0061] Conveyor belt 1 carries a corrugated paper flattening assembly 4, which includes:
[0062] The sidewall of the U-shaped groove 41 is slidably attached to the inner wall of the baffle 2 on the same side.
[0063] A pressure plate 42 is slidably inserted into the U-shaped groove 41;
[0064] The pressing mechanism 3 presses the pressing plate 42 to move and flatten the corrugated paper stacked inside the U-shaped groove 41;
[0065] The inner ends of the front and rear baffles 2 are fixedly equipped with a pressure plate upper and lower surface cleaning mechanism 5.
[0066] Specifically in this embodiment, the pressure plate 42 is easy to remove from the U-shaped groove 41. Before use, it is cleaned by the upper and lower surface cleaning mechanism 5 to remove impurities adhering to the upper and lower surfaces of the pressure plate 42.
[0067] Furthermore, the conveyor belt 1 transports the corrugated paper flattening assembly 4 to below the flattening mechanism 3, and the flattening mechanism 3 presses the pressure plate 42 to flatten the corrugated paper stacked in the U-shaped groove 41.
[0068] More specifically, the corrugated paper is neatly stacked and placed in the U-shaped groove 41 and flattened by the pressure plate 42, thereby improving the flattening efficiency of the corrugated paper.
[0069] It is understandable that the conveyor belt 1 is a direct application of existing technology. The conveyor belt 1 uses the forward and reverse rotation of the drive motor on it to drive the belt to transport materials clockwise or counterclockwise.
[0070] In some embodiments, the upper and lower surface cleaning mechanism 5 of the pressure plate includes:
[0071] Vertical plate 51 is fixedly assembled to the inner end of the front and rear baffles 2;
[0072] A strip window 52 is provided in the middle of the vertical plate 51 along its length;
[0073] The top and bottom surfaces of the strip window 52 are both fixedly connected to strip plates 53 by bolts;
[0074] The upper and lower strip panels 53 have sponge layers glued and fixed to their opposite sides;
[0075] When the pressure plate 42 passes through the upper and lower surfaces of the strip window 52, the sponge layer wipes and cleans the upper and lower surfaces of the pressure plate 42.
[0076] Specifically in this embodiment, the sponge layer wipes and cleans the upper and lower surfaces of the pressure plate 42 when the pressure plate passes through the strip window 52;
[0077] Furthermore, the length of the strip window 52 is the same as the length of the pressure plate 42, and the pressure plate 42 can pass through the strip window 52 horizontally or vertically;
[0078] More specifically, the sponge layer is attached to the strip 53 with peelable adhesive and can be peeled off when needed.
[0079] In some embodiments, corrugated paper flattening components 4 are conveyed on both the left and right sides of the conveyor belt 1;
[0080] Conveyor belt 1 alternately transports corrugated paper flattening components 4 from both sides to the flattening mechanism 3 where it is squeezed;
[0081] The inner sides of both ends of the front and rear baffles 2 are fixedly equipped with a pressure plate upper and lower surface cleaning mechanism 5;
[0082] The upper and lower surface cleaning mechanism 5 of the pressure plate is used in conjunction with the pressure plate 42 on the same side.
[0083] Specifically in this embodiment, the forward and reverse conveying of the conveyor belt 1 causes the two corrugated paper flattening components 4 to move to the bottom of the flattening mechanism 3 and be flattened. When one corrugated paper flattening component 4 is working, the other corrugated paper flattening component 4 that has just finished working is loading corrugated paper, so as to realize the uninterrupted operation of corrugated paper flattening.
[0084] Furthermore, each corrugated paper flattening assembly 4 is equipped with a pressure plate upper and lower surface cleaning mechanism 5 on the feeding side, which facilitates the cleaning operation of the pressure plate 42 before use.
[0085] In some embodiments, a corrugated paper shielding strip 43 is longitudinally fixedly connected to the side of the U-shaped groove 41 near the flattening mechanism 3 to shield the side of the corrugated paper placed in the U-shaped groove 41, so that the corrugated paper can be neatly stacked in the U-shaped groove 41.
[0086] In some embodiments, the pressure plate 42 includes:
[0087] The horizontal plate body 421 has mounting holes 422 evenly provided on its front and rear end faces;
[0088] An electric push rod 423 is attached and fixed in the mounting hole 422, and its telescopic end abuts against the inner wall of the U-shaped groove 41 on the same side after it extends.
[0089] A rechargeable battery 424 is embedded in the side wall of the mounting hole 422 and is electrically connected to the parallel electric push rod 423.
[0090] Specifically in this embodiment, the parallel electric push rod 423 is powered by a rechargeable battery 424. The rechargeable battery 424 is equipped with a switch to control the on / off state of the circuit. The telescopic end of the electric push rod 423 extends and abuts against the front and rear sides of the inner wall of the U-shaped groove 41 for limiting and fixing, keeping the pressure plate 42 in its current position to continuously flatten the corrugated paper stacked below.
[0091] Furthermore, a microprocessor chip is connected to the circuit containing the rechargeable battery 424 and the electric push rod 423 to precisely control the extension and retraction stroke of the electric push rod 423.
[0092] Understandably, the rechargeable battery 424 is located in the unobstructed area on the left or right side of the pressure plate 42, which facilitates charging and switching control.
[0093] In some embodiments, a rolling guide structure 6 is uniformly assembled on the inner sides of the front and rear baffles 2 along the length direction, which includes:
[0094] A strip-shaped groove 61 is longitudinally formed on the inner side of the baffle 2;
[0095] A cylindrical roller 62 is longitudinally mounted inside the groove 61, and the inner end of the cylindrical roller 62 extends out of the groove 61 to fit the outer wall of the corrugated paper flattening component 4.
[0096] Specifically, in this embodiment, when the conveyor belt 1 conveys the corrugated paper flattening component 4, its outer wall is attached to the same side roller 62. The roller 62 rotates due to friction. The rotating rollers 62 on both sides guide the corrugated paper flattening component 4 conveyed on the conveyor belt 1, ensuring the stability and smoothness of its conveying process.
[0097] Furthermore, the distance between adjacent rolling guide structures 6 is less than the width of the U-shaped groove 41, ensuring continuous guidance for the conveying of the U-shaped groove 41.
[0098] In some embodiments, the flattening mechanism 3 includes:
[0099] A horizontal plate 31 is fixedly connected to the upper middle part of the inner side of the front and rear baffles 2;
[0100] A hydraulic cylinder 32 is fixedly mounted on the middle of the upper surface of the horizontal plate 31, and a push plate 33 is fixedly mounted through the lower end of the horizontal plate 31.
[0101] Specifically in this embodiment, the extension end of the hydraulic cylinder 32 extends to drive the push plate 33 to move downward, and the push plate 33 presses the pressure plate 42 in the U-shaped groove 41 to move downward.
[0102] Furthermore, hydraulic cylinder 32 is connected to an external hydraulic system to operate;
[0103] It is understandable that the size of the push plate 33 is less than or equal to the size of the pressure plate 42, and the center lines of the push plate 33 and the pressure plate 42 coincide.
[0104] In some embodiments, a pressure plate sliding guide structure 9 is also included, which includes a groove 91;
[0105] The inner wall of the U-shaped groove 41 has longitudinally opened sliding grooves 91 on both the front and rear sides;
[0106] The front and rear ends of the pressure plate 42 are fixedly fitted with sliders 92 corresponding to the slide grooves 91 on the same side;
[0107] The slider 92 is longitudinally slidably assembled in the corresponding groove 91 to guide the pressure plate 42 placed in the U-shaped groove 41 longitudinally, so as to prevent the pressure plate 42 from shifting position after being squeezed.
[0108] In some embodiments, support plates are provided at both the front and rear of the lower end of the conveyor belt 1, and the width of the support plates gradually increases from top to bottom, thereby increasing the contact area between the support plates and the ground and improving the stability of the device placement.
[0109] A crossbeam 7 is fixedly connected to the lower end of the inner side of the front and rear support plates along the length direction to improve the mechanical strength of the installation of the support plates on both sides and improve the stability of the device placement.
[0110] In some embodiments, a wear-resistant rubber pad 8 is attached and fixed to the bottom surface of the support plate, which effectively absorbs and disperses the vibration generated during the operation of the device, reduces the impact of vibration on the device itself and its surrounding environment, and provides a more stable support. The wear-resistant rubber pad 8 helps to prevent the device from moving or tilting unnecessarily during operation, ensuring the stable operation of the device.
[0111] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A corrugated cardboard flattening device for corrugated paper processing, characterized in that, include: Conveyor belt (1), which is arranged horizontally; Baffles (2) are fixedly installed at the front and rear edges of the upper surface of the conveyor belt (1); A flattening mechanism (3) is fixedly connected to the upper part of the middle of the inner side of the front and rear baffles (2); The conveyor belt (1) carries a corrugated paper flattening assembly (4), which includes: The sidewall of the U-shaped groove (41) is slidably attached to the inner wall of the baffle (2) on the same side; A pressure plate (42) is slidably inserted into the U-shaped groove (41); The flattening mechanism (3) presses the pressure plate (42) and moves to flatten the corrugated paper stacked inside the U-shaped groove (41); The inner side ends of the front and rear baffles (2) are fixedly equipped with a pressure plate upper and lower surface cleaning mechanism (5).
2. The corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The upper and lower surface cleaning mechanism (5) of the pressure plate includes: A vertical plate (51) is fixedly assembled to the inner side end of the front and rear baffles (2); A strip window (52) is provided in the middle of the vertical plate (51) along the length direction; The top and bottom surfaces of the strip window (52) are both fixedly connected to strip plates (53) by bolts; The upper and lower strip plates (53) have sponge layers pasted and fixed on their opposite sides; The sponge layer wipes and cleans the upper and lower surfaces of the pressure plate (42) as it passes through the upper and lower surfaces of the strip window (52).
3. The corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, Corrugated paper flattening components (4) are conveyed on both the left and right sides of the conveyor belt (1). The conveyor belt (1) alternately transports the corrugated paper flattening components (4) on both sides to the flattening mechanism (3) where they are squeezed; The inner sides of the front and rear baffles (2) are both fixedly equipped with a pressure plate upper and lower surface cleaning mechanism (5); The upper and lower surface cleaning mechanism (5) of the pressure plate is used in conjunction with the pressure plate (42) on the same side.
4. The corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The U-shaped groove (41) is longitudinally fixedly connected to a corrugated paper shielding strip (43) on the side near the flattening mechanism (3).
5. A corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The pressure plate (42) includes: The horizontal plate body (421) has mounting holes (422) evenly opened on its front and rear end faces. An electric push rod (423) is pasted and fixed in the mounting hole (422), and its telescopic end abuts against the inner wall of the U-shaped groove (41) on the same side after it extends. A rechargeable battery (424) is embedded in the side wall of the mounting hole (422), which is electrically connected to the electric push rod (423) in parallel.
6. The corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The inner sides of the front and rear baffles (2) are uniformly fitted with rolling guide structures (6) along the length direction, which include: A strip-shaped groove (61) is longitudinally formed on the inner side of the baffle (2); The inner cavity of the strip groove (61) is longitudinally rotated and equipped with a round roller (62), and the inner end of the round roller (62) extends out of the strip groove (61) to fit the outer wall of the corrugated paper flattening component (4).
7. A corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The flattening mechanism (3) includes: A horizontal plate (31) is fixedly connected to the upper part of the middle of the inner side of the front and rear baffles (2); A hydraulic cylinder (32) is fixedly mounted in the middle of the upper surface of the horizontal plate (31), and a push plate (33) is fixedly mounted through the lower end of the horizontal plate (31).
8. A corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, It also includes a pressure plate sliding guide structure (9), which includes a groove (91); The inner wall of the U-shaped groove (41) is longitudinally provided with sliding grooves (91) on both the front and rear sides. The front and rear ends of the pressure plate (42) are fixedly fitted with sliders (92) corresponding to the slide grooves (91) on the same side. The slider (92) is longitudinally slidably fitted into the corresponding groove (91).
9. A corrugated cardboard flattening device for corrugated paper processing according to claim 1, characterized in that, The conveyor belt (1) has support plates at both the front and rear of its lower end, and the width of the support plates gradually increases from top to bottom; A crossbeam (7) is fixedly connected to the lower end of the inner side of the front and rear support plates along the length direction.
10. A corrugated cardboard flattening device for corrugated paper processing according to claim 9, characterized in that, A wear-resistant rubber pad (8) is attached and fixed to the bottom surface of the support plate.