Cutting device for corrugated board production

Abstract

The utility model provides a cutting device for corrugated board production, and relates to the technical field of corrugated board production and processing. The cutting device for corrugated board production comprises a supporting frame and a cutter for cutting a paperboard, a plurality of conveying rollers are rotationally connected to the supporting frame, two limiting plates for limiting the paperboard are slidably connected to the supporting frame, a fixed frame is fixedly connected to the supporting frame, and a movable plate is slidably connected to the interior of the fixed frame. According to the device, a plurality of conveying rollers are driven to rotate to limit a paperboard on the conveying rollers left and right, it is guaranteed that the corrugated paperboard enters the position under a cutting knife without deviation, one end of the paperboard is blocked through an arranged positioning plate to limit conveying of the paperboard, the cutting knife is driven to descend through a downward pressing mechanism, and the paperboard is conveyed to the position under the cutting knife. And the distance value between the positioning plate and the cutter is adjusted by rotating the adjusting screw rod, and accurate control over the cutting length of the corrugated board is achieved under the effect of the scale marking lines.

Description

Technical Field

[0001] The utility model relates to a cutting device, in particular to a cutting device for corrugated cardboard production, belonging to the technical field of corrugated cardboard production and processing. Background Technique

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper sandwich (commonly known as "corrugated paper", "corrugated board", "corrugated core paper", "corrugated paper core", "corrugated base paper") and one layer of cardboard (also known as "liner board", "box board"). It has high mechanical strength and can withstand collisions and drops during handling. When corrugated cardboard is produced into corrugated paper boxes or cartons, a cutting device is needed to cut the cardboard.

[0003] Chinese Patent Publication No. CN216359596U discloses a corrugated cardboard cutting device, including a bottom plate. A first notch is penetrated through the left side of the top surface and the left side of the bottom surface of the bottom plate. The inner side wall of the first notch is fixedly connected with a first fixed column, and a first roller shaft is movably inserted on the surface of the first fixed column. A second notch is penetrated through the right side of the top surface and the right side of the bottom surface of the bottom plate. The inner wall of the second notch is fixedly connected with a second fixed column, and a second roller shaft is movably inserted on the surface of the second fixed column.

[0004] However, the inventor believes that the above device has certain defects. When the above device conveys the cardboard, there is a lack of a limiting mechanism for the cardboard, resulting in the phenomenon that the cardboard is prone to deviation when it is conveyed to the cutting area, and it is not convenient to adjust and control the cutting length of the cardboard, reducing the cutting efficiency. Therefore, the utility model provides a cutting device for corrugated cardboard production. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a cutting device for corrugated cardboard production to solve the problems of the lack of a limiting mechanism for the cardboard and the inconvenience of adjusting and controlling the cutting length of the cardboard in the prior art.

[0007] (II) Technical Solutions

[0008] The utility model is realized through the following technical solutions: a cutting device for corrugated board production, including a support frame and a cutting knife for cutting the cardboard. A plurality of conveying rollers are rotatably connected to the support frame. Two limiting plates for limiting the cardboard are slidably connected to the support frame. A fixed frame is fixedly connected to the support frame. An activity plate is slidably connected inside the fixed frame. The cutting knife is slidably connected to the bottom of the activity plate. A pressing mechanism for driving the cutting knife to lift and lower is installed on the activity plate. A support plate is fixedly connected inside the support frame. The support plate is arranged directly below the cutting knife. One end of the cutting knife is provided with a positioning plate for blocking the cardboard. A threaded seat is fixedly connected to the bottom of the activity plate. An adjusting screw rod is threadedly connected inside the threaded seat. One end of the adjusting screw rod is rotatably connected to one side surface of the positioning plate. A scale marking corresponding to the positioning plate is provided on the support frame. A lifting mechanism for controlling the lifting and lowering of the activity plate is installed on the fixed frame.

[0009] Preferably, two fixed seats are fixedly connected to the support frame. A fixed sliding rod is fixedly connected between the two fixed seats. Both of the limiting plates are slidably connected to the fixed sliding rod. By controlling the sliding of the two limiting plates on the fixed sliding rod, the distance value between the two limiting plates can be adjusted.

[0010] Preferably, a bidirectional screw rod is rotatably connected between the two fixed seats. Both of the limiting plates are threadedly connected to the bidirectional screw rod. By rotating the bidirectional screw rod, the two limiting plates move closer to or away from each other, so as to adjust the distance value between the two limiting plates, and corrugated boards of different sizes can be limited.

[0011] Preferably, the pressing mechanism includes a rotating disc rotatably connected to the activity plate. A connecting block is installed on the rotating disc. A connecting pull rod is rotatably connected to the connecting block. The other end of the connecting pull rod is hinged to the top of the cutting knife through a pin shaft. A driving motor for driving the rotating disc to rotate is fixedly connected to the activity plate. By starting the driving motor to drive the rotating disc to rotate, the cutting knife is pushed down under the action of the connecting pull rod to cut the corrugated board.

[0012] Preferably, a connecting bolt is installed on the connecting block. The connecting block is detachably connected to the rotating disc through the connecting bolt. By removing the connecting bolt on the connecting block, the connecting pull rod is separated from the connecting block, which is convenient for taking down the cutting knife from the bottom of the activity plate for maintenance.

[0013] Preferably, the lifting mechanism includes a hydraulic telescopic rod fixed to the top of the fixed frame. The telescopic end of the hydraulic telescopic rod is fixedly connected to the top of the activity plate. By starting the hydraulic telescopic rod, the activity plate is controlled to lift and lower inside the fixed frame.

[0014] Preferably, a connecting slide rod is fixedly connected to the top of the cutting scissors, and the connecting slide rod is slidably connected to the top of the movable plate. By providing the connecting slide rod, the cutting scissors can perform stable lifting and sliding at the bottom of the movable plate.

[0015] The utility model provides a cutting device for corrugated cardboard production, and its beneficial effects are as follows:

[0016] 1. The device drives a plurality of conveying rollers to rotate to limit the cardboard on the conveying rollers left and right, ensuring that the corrugated cardboard enters directly below the cutting scissors without deviation. The conveying of the cardboard is restricted by blocking one end of the cardboard with the provided positioning plate. The cutting scissors are driven to descend by the pressing mechanism to cut the cardboard. The distance between the positioning plate and the cutting scissors is adjusted by rotating the adjusting screw, and the accurate control of the cutting length of the corrugated cardboard is achieved under the action of the scale marking.

[0017] 2. The device adjusts the distance between the two limiting plates by rotating the bidirectional screw to make the two limiting plates approach or move away from each other on the fixed slide rod, so as to limit cardboard of different width dimensions. By starting the driving motor to drive the rotating disc to rotate, when the rotating disc rotates one circle, the cutting scissors are driven to perform reciprocating lifting and sliding at the bottom of the movable plate through the connection of the connecting pull rod, realizing the rapid cutting of the cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional view of the overall structure of the present utility model;

[0019] Figure 2 is a three-dimensional view of the limiting plate structure of the present utility model;

[0020] Figure 3 is a three-dimensional view of the positioning plate structure of the present utility model;

[0021] Figure 4 is a three-dimensional view of the pressing mechanism structure of the present utility model;

[0022] Figure 5 is of the present utility model Figure 4 A enlarged schematic view.

[0023]

MAIN COMPONENT SYMBOL DESCRIPTION

[0024] 1. Support frame; 2. Conveying roller; 3. Limiting plate; 31. Fixed seat; 32. Fixed slide rod; 33. Bidirectional screw; 4. Fixed frame; 5. Movable plate; 51. Hydraulic telescopic rod; 6. Cutting scissors; 7. Positioning plate; 71. Threaded seat; 72. Adjusting screw; 8. Rotating disc; 81. Connecting block; 82. Connecting pull rod; 83. Connecting bolt; 85. Driving motor; 9. Support plate. DETAILED DESCRIPTION OF THE INVENTION

[0025] The embodiment of the utility model provides a cutting device for corrugated board production.

[0026] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , including a support frame 1 and a cutting knife 6 for cutting the cardboard. A plurality of conveying rollers 2 are rotatably connected to the support frame 1. The plurality of conveying rollers 2 are driven to rotate by an external driving device. The cardboard placed on the conveying rollers 2 is conveyed by the conveying rollers 2. Two limiting plates 3 for limiting the cardboard are slidably connected to the support frame 1. The conveyed cardboard is limited left and right by the two limiting plates 3 to ensure that the corrugated cardboard enters directly below the cutting knife 6 without deviation. Two fixing seats 31 are fixedly connected to the support frame 1. A fixing slide bar 32 is fixedly connected between the two fixing seats 31. Both of the two limiting plates 3 are slidably connected to the fixing slide bar 32. A bidirectional screw 33 is rotatably connected between the two fixing seats 31. Both of the two limiting plates 3 are threadedly connected to the bidirectional screw 33. The limiting plate 3 is convex in shape. The bidirectional screw 33 is a screw with two external threads. The thread directions of the two external threads are opposite. By rotating the bidirectional screw 33, the two limiting plates 3 approach or move away from each other on the fixing slide bar 32, so as to adjust the distance value between the two limiting plates 3, and cardboard with different width dimensions can be limited.

[0027] Please refer to again Figure 1 and Figure 4 , a fixing frame 4 is fixedly connected to the support frame 1. A movable plate 5 is slidably connected inside the fixing frame 4. The cutting knife 6 is slidably connected to the bottom of the movable plate 5. A connecting slide bar is fixedly connected to the top of the cutting knife 6. The connecting slide bar is slidably connected to the top of the movable plate 5. A pressing mechanism for driving the cutting knife 6 to lift is installed on the movable plate 5. The cutting knife 6 is driven to descend by the pressing mechanism to cut the cardboard directly below the cutting knife 6. The stability of the lifting process of the cutting knife 6 is increased by the provided connecting slide bar. A support plate 9 is fixedly connected to the inside of the support frame 1. The support plate 9 is arranged directly below the cutting knife 6. The bottom of the cardboard is supported by the provided support plate 9 to facilitate the cutting process.

[0028] Please refer to again Figure 1 , Figure 3 , Figure 4 and Figure 5, the pressing mechanism includes a rotating disk 8 rotatably connected to the movable plate 5. A connecting block 81 is installed on the rotating disk 8. A connecting pull rod 82 is rotatably connected to the connecting block 81. The other end of the connecting pull rod 82 is hinged to the top of the cutting knife 6 through a pin shaft. A driving motor 85 for driving the rotating disk 8 to rotate is fixedly connected to the movable plate 5. A through groove is formed in the movable plate 5. By starting the driving motor 85, the rotating disk 8 is driven to rotate. When the rotating disk 8 rotates one circle, the cutting knife 6 is driven to reciprocate up and down and slide once at the bottom of the movable plate 5 through the connection of the connecting pull rod 82, realizing the rapid cutting of the cardboard. A connecting bolt 83 is installed on the connecting block 81. The connecting block 81 is detachably connected to the rotating disk 8 through the connecting bolt 83. By removing the connecting bolt 83 on the connecting block 81, the connecting block 81 is separated from the rotating disk 8, so that the cutting knife 6 can be easily taken down from the bottom of the movable plate 5, facilitating the maintenance of the cutting knife 6.

[0029] Please refer to again Figure 1 and Figure 3 , one end of the cutting knife 6 is provided with a positioning plate 7 for blocking the cardboard. The bottom of the positioning plate 7 falls on the conveying roller 2 or in the gap between the conveying roller 2 and the conveying roller 2, blocking the cardboard during the conveying process and restricting the conveying of the cardboard. A threaded seat 71 is fixedly connected to the bottom of the movable plate 5. An adjusting screw rod 72 is threadedly connected inside the threaded seat 71. One end of the adjusting screw rod 72 is rotatably connected to one side surface of the positioning plate 7. A scale marking corresponding to the positioning plate 7 is provided on the support frame 1. By rotating the adjusting screw rod 72, the distance value between the positioning plate 7 and the cutting knife 6 is adjusted, and the accurate control of the cutting length of the corrugated cardboard is realized under the action of the scale marking.

[0030] Please refer to again Figure 1 , Figure 3 and Figure 4 , a lifting mechanism for controlling the lifting of the movable plate 5 is installed on the fixed frame 4. The lifting mechanism includes a hydraulic telescopic rod 51 fixed to the top of the fixed frame 4. The telescopic end of the hydraulic telescopic rod 51 is fixedly connected to the top of the movable plate 5. By starting the hydraulic telescopic rod 51, the movable plate 5 is driven to lift, thereby driving the positioning plate 7 to rise and enabling the cut cardboard to continue to be conveyed.

[0031] Working principle: Install the device in a suitable position and connect it to the municipal power supply. Connect the hydraulic telescopic rod 51 to the hydraulic system. Rotate the bidirectional screw 33 according to the width value of the cardboard to make the two limit plates 3 approach or move away from each other, so as to adjust the distance between the two limit plates 3. Place the cardboard on the conveying roller 2 and drive the conveying roller 2 to rotate through the driving mechanism to convey the cardboard. Limit the left and right sides of the cardboard through the two limit plates 3 to ensure that the corrugated cardboard enters directly below the cutting knife 6 without deviation. Block one end of the cardboard through the provided positioning plate 7 to limit the conveying of the cardboard. Start the driving motor 85 to drive the rotating disc 8 to rotate, and under the connection action of the connecting rod 82, push the cutting knife 6 to reciprocate up and down once to quickly cut the cardboard. Rotate the adjusting screw 72 to make the positioning plate 7 approach or move away from the cutting knife 6 to adjust the distance value between the positioning plate 7 and the cutting knife 6, and under the action of the scale marking, accurately control the cutting length of the corrugated cardboard. After cutting, start the hydraulic telescopic rod 51 to drive the movable plate 5 to rise, thereby driving the positioning plate 7 to rise and enabling the cardboard to continue to be conveyed.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing corrugated cardboard, comprising a support frame (1) and a cutting knife (6) for cutting cardboard, characterized in that: The support frame (1) is rotatably connected to a plurality of conveying rollers (2); the support frame (1) is slidably connected to two limit plates (3) for limiting the position of the cardboard; the support frame (1) is fixedly connected to a fixed frame (4); a movable plate (5) is slidably connected inside the fixed frame (4); the cutting knife (6) is slidably connected to the bottom of the movable plate (5); a pressing mechanism for driving the cutting knife (6) to move up and down is installed on the movable plate (5); a support plate (9) is fixedly connected inside the support frame (1); the support plate ( 9) is arranged directly below the cutting knife (6), one end of the cutting knife (6) is provided with a positioning plate (7) for blocking the cardboard, the bottom of the movable plate (5) is fixedly connected with a threaded seat (71), the internal thread of the threaded seat (71) is connected with an adjusting screw (72), one end of the adjusting screw (72) is rotatably connected to a side surface of the positioning plate (7), the support frame (1) is provided with a scale mark corresponding to the positioning plate (7), and the fixed frame (4) is installed with a lifting mechanism for controlling the movable plate (5) to be raised and lowered.

2. The cutting device for corrugated board production according to claim 1, characterized in that: Two fixed seats (31) are fixedly connected to the support frame (1), a fixed sliding rod (32) is fixedly connected between the two fixed seats (31), and the two limit plates (3) are slidably connected to the fixed sliding rod (32).

3. The cutting device for corrugated board production according to claim 2, characterized in that: A bidirectional screw (33) is rotatably connected between the two fixing seats (31), and the two limiting plates (3) are both threadedly connected to the bidirectional screw (33).

4. The cutting device for corrugated board production according to claim 1, characterized in that: The pressing mechanism comprises a rotating disk (8) rotatably connected to the movable plate (5), a connecting block (81) being mounted on the rotating disk (8), a connecting rod (82) being rotatably connected to the connecting block (81), the other end of the connecting rod (82) being hinged to the top of the cutting knife (6) via a pin, and a driving motor (85) for driving the rotating disk (8) to rotate being fixedly connected to the movable plate (5).

5. The cutting device for corrugated board production according to claim 4, characterized in that: A connecting bolt (83) is mounted on the connecting block (81), and the connecting block (81) is detachably connected to the rotating disk (8) via the connecting bolt (83).

6. The cutting device for corrugated board production according to claim 1, characterized in that: The lifting mechanism comprises a hydraulic telescopic rod (51) fixed to the top of the fixed frame (4), and the telescopic end of the hydraulic telescopic rod (51) is fixedly connected to the top of the movable plate (5).

7. The cutting device for corrugated board production according to claim 1, characterized in that: The top of the cutting knife (6) is fixedly connected to a connecting slide rod, and the connecting slide rod is slidably connected to the top of the movable plate (5).

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