Paperboard flattening device

Abstract

The utility model discloses a paperboard flattening device, which belongs to the technical field of paperboard processing and comprises a pressing platform, a vertical plate is welded on the top surface of the pressing platform, an electric push rod is mounted on one side surface of the vertical plate, the output end of the electric push rod is fixedly connected with a moving block, and two mounting plates are symmetrically welded on the top surface of the moving block. A rotating shaft is rotationally arranged on the opposite side faces of the two mounting plates, the circumferential side of the rotating shaft is fixedly sleeved with a flattening bottom block used for placing and flattening a paperboard, the circumferential side of the rotating shaft is fixedly sleeved with the eccentric position of one side face of the flattening bottom block, and the two ends of the rotating shaft penetrate through the opposite sides of the two mounting plates correspondingly and are fixedly connected with gears; two racks meshed with the two gears are symmetrically installed on the top face of the pressing platform, a cushion block is welded to the top face of the moving block, and the bottom face of the pressing flat block abuts against the top face of the cushion block. According to the paperboard flattening device, the problem that flattened paperboards are inconvenient to take out is solved, and the labor amount of workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard processing technology, and in particular to a cardboard flattening device. Background Technology

[0002] Paperboard, also known as cardboard, is a thick sheet of paper made from various pulps and composed of interwoven fibers. Because paperboard is prone to warping, it needs to be flattened by a flattening device. However, most flattening devices lack unloading components, resulting in manual material handling. This requires workers to reach between the flattening components to retrieve the material, which not only poses safety hazards but also increases the workload of the workers.

[0003] A Chinese patent (authorization announcement number CN222022302U) discloses a honeycomb paperboard flattening device, which "includes a support frame, a cylinder is fixedly installed on the top wall of the support frame, and a connecting rod is slidably installed inside the support frame, the connecting rod passes through the top wall of the support frame and is fixedly connected to the output end of the cylinder, and a pressure plate is fixedly installed on the bottom wall of the connecting rod."

[0004] It is evident that the cited patent document presents the problem of requiring manual removal of the flattened cardboard. Utility Model Content

[0005] The purpose of this invention is to provide a cardboard flattening device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cardboard flattening device, comprising a pressing platform, a vertical plate welded to the top surface of the pressing platform, an electric push rod mounted on one side of the vertical plate, a moving block fixedly connected to the output end of the electric push rod, two mounting plates symmetrically welded to the top surface of the moving block, a rotating shaft rotatably mounted on the opposite side of the two mounting plates, a flattening bottom block for placing cardboard for flattening fixedly mounted on the circumference of the rotating shaft, an eccentric position of one side of the flattening bottom block fixedly mounted on the circumference of the rotating shaft, two ends of the rotating shaft respectively penetrating to opposite sides of the two mounting plates and fixedly connected to gears, and two racks meshing with the two gears symmetrically mounted on the top surface of the pressing platform.

[0007] Preferably, a pad is welded to the top surface of the movable block, and the bottom surface of the flattening block abuts against the top surface of the pad.

[0008] Preferably, the top surface of the pressure platform is welded with an inverted L-shaped bracket, and a hydraulic cylinder is installed on the top surface of the bracket.

[0009] Preferably, the piston rod of the hydraulic cylinder passes through the bracket and is connected to a pressing plate for flattening the cardboard, the pressing plate being positioned above the flattening base block.

[0010] Preferably, one side of each of the two mounting plates is provided with a through hole for the rotating shaft to pass through, and the inner cavity of each of the two through holes is provided with a bearing.

[0011] Preferably, the outer sidewalls of the two bearings are respectively connected and fixed to the inner sidewalls of the two through holes, and the rotating shaft passes through the two bearings and is connected and fixed to the inner sidewalls of the two bearings.

[0012] Preferably, the top surface of the pressing platform is welded with a slide rail for limiting the movement position of the moving block, and the bottom surface of the moving block is provided with a slide groove that is adapted to slide along the slide rail.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] This cardboard flattening device, by activating an electric push rod, provides power to move the moving block, thereby removing the flattened cardboard from under the pressing plate. In conjunction with gears and racks, the flattening base block rotates, creating an inclination that allows the flattened cardboard to be unloaded along the inclined flattening base block. Compared to existing devices that flatten cardboard, this device can automatically remove the flattened cardboard from the device, avoiding the need for personnel to reach between the flattening components to remove the cardboard, thus reducing the workload of personnel.

[0015] By activating the hydraulic cylinder, power can be provided to move the press plate and flatten the cardboard. The through holes and fixed bearings can support the position of the rotating shaft and allow it to rotate. The welded slide rails can limit the movement of the moving blocks to prevent deviation. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the movable block and the pad block of this utility model;

[0019] Figure 3 This is a schematic diagram of the flattened bottom block and gear of this utility model;

[0020] Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Pressing platform; 2. Vertical plate; 3. Electric push rod; 4. Moving block; 5. Mounting plate; 6. Rotating shaft; 7. Pressing bottom block; 8. Gear; 9. Rack; 10. Pad block; 11. Bracket; 12. Hydraulic cylinder; 13. Pressing plate; 14. Through hole; 15. Bearing; 16. Slide rail; 17. Slide groove. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0025] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0026] like Figures 1 to 4 The cardboard flattening device shown includes a pressing platform 1, a vertical plate 2 welded to the top surface of the pressing platform 1, an electric push rod 3 mounted on one side of the vertical plate 2, a movable block 4 fixedly connected to the output end of the electric push rod 3, two mounting plates 5 symmetrically welded to the top surface of the movable block 4, a rotating shaft 6 rotatably mounted on the opposite side of the two mounting plates 5, and a flattening base block 7 for placing cardboard for flattening fixedly fitted around the circumference of the rotating shaft 6, an inverted L-shaped bracket 11 welded to the top surface of the pressing platform 1, and a hydraulic cylinder 12 mounted on the top surface of the bracket 11. The piston rod of the hydraulic cylinder 12 passes through the bracket 11 and is connected to a pressing plate 13 for flattening the cardboard. The pressing plate 13 is located above the flattening base block 7. After the cardboard is placed on the top surface of the flattening base block 7, the hydraulic cylinder 12 is turned on, which can drive the pressing plate 13 to move downward to flatten the cardboard. After flattening, the electric push rod 3 is turned on, which can drive the moving block 4 to move laterally, thereby driving the flattening base block 7 to move laterally, so that the cardboard on the top surface of the flattening base block 7 can be removed from under the pressing plate 13, reducing safety hazards.

[0027] The flattening block 7 is eccentrically mounted on one side of the rotating shaft 6, allowing it to rotate in a circle around the axis of the rotating shaft 6. The two ends of the rotating shaft 6 pass through to opposite sides of the two mounting plates 5 and are fixedly connected to gears 8. Two racks 9, meshing with the two gears 8, are symmetrically mounted on the top surface of the pressing platform 1. A collection box (not shown) for collecting the flattened cardboard is mounted on one side of the pressing platform 1. When the moving block 4 moves, it drives the two gears 8 to move synchronously via the two mounting plates 5 and the rotating shaft 6. The two gears 8 respectively abut against... When the two racks 9 are engaged, the moving block 4 continues to move, allowing the two gears 8 to move along the two racks 9 respectively, thus enabling the two gears 8 to rotate synchronously. This, in turn, causes the two gears 8 to drive the rotating shaft 6 to rotate, allowing the flattening block 7 to rotate counterclockwise around the rotating shaft 6. This results in the flattening block 7 being tilted, allowing the cardboard to move along the tilted surface into the collection box for collection. This avoids the need for personnel to reach between the flattening components to remove the cardboard, reducing safety hazards and the workload of workers.

[0028] A pad 10 is welded to the top surface of the movable block 4. The bottom surface of the flattening block 7 abuts against the top surface of the pad 10. When the electric push rod 3 drives the movable block 4 to move in the opposite direction, the two gears 8 will move in the opposite direction along the rack 9, so that the flattening block 7 rotates clockwise, so that the bottom surface of the flattening block 7 can abut against the pad 10, ensuring that the top surface of the flattening block 7 can be in a horizontal state, which is convenient for subsequent flattening.

[0029] Personnel can place the cardboard on the top surface of the flattening block 7 just as the flattening block 7 touches the pad block 10, so that personnel will not be inside the flattening component when placing the cardboard, reducing safety hazards. After placement, the electric push rod 3 continues to drive the moving block 4 to move, so that the moving block 4 drives the flattening block 7 to move directly under the pressing plate 13, so that the cardboard can be flattened.

[0030] Both mounting plates 5 have through holes 14 on one side for the rotating shaft 6 to pass through. Each through hole 14 has a bearing 15 inside. The outer side walls of the two bearings 15 are connected and fixed to the inner side walls of the two through holes 14 respectively. The rotating shaft 6 passes through the two bearings 15 and is connected and fixed to the inner side walls of the two bearings 15. When the rotating shaft 6 rotates, it will drive the inner rings of the two bearings 15 to rotate, so that the two bearings 15 can support the position of the rotating shaft 6 and also assist the rotation of the rotating shaft 6.

[0031] The top surface of the pressure platform 1 is welded with a slide rail 16 for limiting the movement position of the moving block 4, and the bottom surface of the moving block 4 is provided with a slide groove 17 that is adapted to slide with the slide rail 16.

[0032] Working principle:

[0033] The cardboard flattening device places the cardboard to be arranged on the top surface of the flattening base block 7 and activates the hydraulic cylinder 12, causing the pressure plate 13 to move downwards to flatten the cardboard. After the cardboard is flattened, the electric push rod 3 is activated, which drives the moving block 4 to move, allowing the moving block 4 to move the cardboard inside the flattening base block 7. When the moving block 4 moves away from under the pressure plate 13 and the two gears 8 mesh with the two racks 9 respectively, continuing to move the moving block 4 will allow the two gears 8 to mesh with the racks 9 respectively. Engaging with two racks 9 and coordinating with the movement of the moving block 4, the two gears 8 can move synchronously along the two racks 9, thereby achieving synchronous rotation of the two gears 8. In turn, the two gears 8 drive the rotating shaft 6 to rotate, allowing the flattening bottom block 7 to rotate counterclockwise around the rotating shaft 6. This causes the flattening bottom block 7 to tilt, allowing the cardboard to be discharged outward from the tilted surface for collection. This avoids the need for personnel to reach their hands between the flattening components to remove the cardboard, reducing safety hazards and the workload of workers.

[0034] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A board flattening device comprising a pressing platform (1), characterized in that: The top surface of the pressing platform (1) is welded with a vertical plate (2), one side surface of the vertical plate (2) is provided with an electric push rod (3), the output end of the electric push rod (3) is fixedly connected with a moving block (4), the top surface of the moving block (4) is symmetrically welded with two mounting plates (5), the opposite side surfaces of the two mounting plates (5) are rotatably provided with rotating shafts (6), the circumferential side of the rotating shaft (6) is fixedly sleeved with a flattening bottom block (7) for placing and flattening paperboard, the eccentric position of one side surface of the flattening bottom block (7) is fixedly sleeved on the circumferential side of the rotating shaft (6), the two ends of the rotating shaft (6) are respectively penetrated through the opposite side surfaces of the two mounting plates (5) and are fixedly connected with gear wheels (8), and the top surface of the pressing platform (1) is symmetrically provided with two rack gears (9) engaged with the two gear wheels (8).

2. A paperboard flattening device according to claim 1, characterized in that: The top surface of the moving block (4) is welded with a pad (10), and the bottom surface of the flattening bottom block (7) abuts against the top surface of the pad (10).

3. A paperboard flattening device according to claim 1, characterized in that: The top surface of the pressing platform (1) is welded with an inverted L-shaped support (11), and the top surface of the support (11) is provided with a hydraulic cylinder (12).

4. A paperboard flattening device according to claim 3, characterized in that: The piston rod of the hydraulic cylinder (12) is connected with a flattening plate (13) for flattening paperboard through the support (11), and the flattening plate (13) is above the flattening bottom block (7).

5. A paperboard flattening device as defined in claim 1, wherein: The side surface of the two mounting plates (5) is provided with a through hole (14) for the rotating shaft (6) to pass through, and the inner cavities of the two through holes (14) are provided with bearings (15).

6. A paperboard flattening device according to claim 5, characterized in that: The outer side walls of the two bearings (15) are respectively connected and fixed with the inner side walls of the two through holes (14), and the rotating shaft (6) passes through the two bearings (15) and is connected and fixed with the inner side walls of the two bearings (15).

7. A paperboard flattening device according to claim 1, characterized in that: The top surface of the pressing platform (1) is welded with a sliding rail (16) for limiting the moving position of the moving block (4), and the bottom surface of the moving block (4) is provided with a sliding groove (17) slidingly matched with the sliding rail (16).

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