A cutting device that can limit the position of a cardboard box

Abstract

This utility model discloses a cutting device for limiting the position of cardboard boxes, including a conveyor. A cutting mechanism is installed at the upper end of the conveyor, and a connecting plate is fixedly connected to the lower end of the conveyor. A groove is formed in the connecting plate, and a bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the groove. A slider is threaded to each of the two threaded ends of the bidirectional threaded rod. The lower ends of the two sliders are slidably connected to the inner wall of the groove, and a moving rod is fixedly connected to the upper ends of the two sliders. The other ends of the two moving rods extend to the outside and are fixedly connected to a moving plate. The device incorporates a bidirectional threaded rod, a worm gear, and a worm shaft. By adjusting the distance between the two moving plates, multiple first guide rollers can limit and guide cardboard of different specifications. Furthermore, the angle of the rotating plate can be adjusted to flexibly guide the cardboard smoothly along a predetermined path, improving cutting accuracy.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box cutting technology, and in particular to a cutting device that can limit the position of cardboard boxes. Background Technology

[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes and single-layer cardboard boxes. In the cardboard box production and processing process, the cutting of cardboard is crucial. With the increasing diversification of market demand for cardboard boxes, the specifications, dimensions and styles of cardboard boxes are constantly being updated, which puts forward higher requirements for the adaptability and precision of cardboard box cutting equipment.

[0003] However, when cutting cardboard, if the cardboard is placed directly on the conveyor for transport, it is easy for the cardboard to shift or twist due to uneven force, resulting in deviations in the cutting dimensions, affecting the cutting effect, and in severe cases, even causing the cardboard to be scrapped. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a cutting device that can limit the movement of cardboard boxes. It is equipped with a bidirectional threaded rod, a worm gear, and a worm, etc. By adjusting the distance between the two moving plates, multiple first guide rollers can limit and guide cardboard of different specifications. Furthermore, the angle of the rotating plate can be adjusted to flexibly guide the cardboard to move smoothly along a predetermined path, thereby improving the cutting accuracy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting device for limiting the position of a carton includes a conveyor. A cutting mechanism is installed at the upper end of the conveyor, and a connecting plate is fixedly connected to the lower end of the conveyor. A groove is formed in the connecting plate, and a bidirectional threaded rod is rotatably connected between the inner walls of the two sides of the groove. A slider is threaded to both threaded ends of the bidirectional threaded rod. The lower ends of the two sliders are slidably connected to the inner wall of the groove. A movable rod is fixedly connected to the upper end of each slider. The other ends of the two movable rods extend to the outside and are fixedly connected to a movable plate. Multiple first guide rollers are rotatably connected to the opposite sides of the two movable plates. Two connecting blocks are fixedly connected to one side wall of each of the two movable plates. A rotating shaft is rotatably connected between every two cooperating connecting blocks. A fixed plate is fixedly connected to the outer wall of each rotating shaft. A rotating plate is fixedly connected to one side wall of each of the two fixed plates. Multiple second guide rollers are rotatably connected to the opposite sides of the two rotating plates.

[0007] Preferably, the upper end of the conveyor is fixedly connected to an installation plate, and two sliding rods slide through the installation plate. The lower ends of the two sliding rods are fixedly connected to an installation frame. Rotating rollers are rotatably connected between the inner walls on both sides of the installation frame, and a limit plate is fixedly connected to the upper ends of the two sliding rods.

[0008] Preferably, the outer walls of both sliding rods are fitted with springs, and the two ends of the two springs are elastically connected to the upper end of the mounting bracket and the lower end of the mounting plate, respectively.

[0009] Preferably, a motor is installed on the outer wall of the connecting plate, and the end of the output shaft of the motor extends into the groove and is fixedly connected to one end of the bidirectional threaded rod.

[0010] Preferably, worm gears are fixedly connected to the outer walls of both rotating shafts, U-shaped plates are fixedly connected to the opposite sides of both moving plates, and worms are rotatably connected between the inner walls of both sides of the two U-shaped plates, with both worms meshing with the corresponding worm gears.

[0011] Preferably, one end of each of the two worm gears passes through a corresponding U-shaped plate and is fixedly connected to a knob, and both knobs are provided with a rubber layer.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The device is equipped with a bidirectional threaded rod, slider, and moving rod. The spacing of multiple first guide rollers can be adjusted by adjusting the spacing between two moving plates, which can limit the conveying of paperboards of different specifications. In addition, the device is equipped with a worm gear and worm shaft. The angle of multiple second guide rollers can be adjusted by adjusting the angle of the rotating plate. The guiding path can be flexibly changed according to different specifications of paperboards, avoiding paperboard conveying deviation and jamming, and improving cutting accuracy.

[0014] 2. The structure includes a sliding rod, a rotating roller, and a spring. When the cardboard passes through, the rotating roller adheres to the upper surface of the cardboard and moves up and down along the sliding rod as the cardboard thickness changes. The spring is simultaneously compressed or reset, keeping the cardboard in a horizontal position before cutting. This prevents the cardboard from shifting due to up-and-down movement during the cutting process, further improving the cutting accuracy of the cardboard. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a cutting device for limiting the position of a cardboard box according to the present invention.

[0016] Figure 2 for Figure 1 The diagram on the right;

[0017] Figure 3 for Figure 2 Enlarged view of point A;

[0018] Figure 4 for Figure 1 A schematic diagram of the right-side cross-section;

[0019] Figure 5 for Figure 1 A schematic diagram of the upper part;

[0020] Figure 6 for Figure 5 Enlarged view of point B;

[0021] Figure 7 for Figure 1 A schematic diagram of the rear side.

[0022] In the diagram: 1 Conveyor, 2 Cutting mechanism, 3 Mounting plate, 4 Sliding rod, 5 Mounting frame, 6 Rotating roller, 7 Limiting plate, 8 Spring, 9 Connecting plate, 10 Slide groove, 11 Bidirectional threaded rod, 12 Slider, 13 Motor, 14 Moving rod, 15 Moving plate, 16 First guide roller, 17 Connecting block, 18 Rotating shaft, 19 Fixed plate, 20 Rotating plate, 21 Second guide roller, 22 Worm gear, 23 U-shaped plate, 24 Worm, 25 Knob. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-7 A cutting device for limiting the position of cardboard boxes includes a conveyor 1. A cutting mechanism 2 is installed on the upper end of the conveyor 1. Since the cutting mechanism 2 is a mature existing technology, its specific structure and working principle can be referred to relevant industry standard equipment. Here, we focus on describing the innovative limiting structure design of this device. An installation plate 3 is fixedly connected to the upper end of the conveyor 1. Two sliding rods 4 slide through the installation plate 3. The lower ends of the two sliding rods 4 are fixedly connected to an installation frame 5. Rotating rollers 6 are rotatably connected between the inner walls on both sides of the installation frame 5. Limiting disks 7 are fixedly connected to the upper ends of the two sliding rods 4. The limiting disks 7 are used to limit the movement range of the sliding rods 4 and prevent the sliding rods 4 from detaching from the installation plate 3. Springs 8 are sleeved on the outer walls of the two sliding rods 4. The two ends of the two springs 8 are elastically connected to the upper end of the installation frame 5 and the lower end of the installation plate 3, respectively. Through the elastic deformation of the springs 8, the installation frame 5 can drive the rotating rollers 6 to adaptively adjust the height to adapt to cardboard of different thicknesses.

[0025] The lower end of the conveyor 1 is fixedly connected to a connecting plate 9, and a slide groove 10 is opened in the connecting plate 9. A bidirectional threaded rod 11 is rotatably connected between the inner walls of the two sides of the slide groove 10. A slider 12 is threadedly connected to both threaded ends of the bidirectional threaded rod 11. The lower ends of the two sliders 12 are slidably connected to the inner wall of the slide groove 10. A motor 13 is installed on the outer wall of the connecting plate 9. The motor 13 is a servo motor. The output shaft of the motor 13 extends into the interior of the slide groove 10 and is fixedly connected to one end of the bidirectional threaded rod 11. A moving rod 14 is fixedly connected to the upper end of the two sliders 12. The other ends of the two moving rods 14 extend to the outside and are fixedly connected to a moving plate 15. By starting the motor 13, the bidirectional threaded rod 11 is rotated, which causes the two sliders 12 to slide relative to or away from each other in the slide groove 10. The movement of the sliders 12 drives the moving plate 15 to move synchronously through the moving rod 14, thereby realizing the limit adjustment of different specifications of cardboard.

[0026] In this system, multiple first guide rollers 16 are rotatably connected to the opposite sides of the two movable plates 15. Two connecting blocks 17 are fixedly connected to one side wall of each of the two movable plates 15. A rotating shaft 18 is rotatably connected between each pair of cooperating connecting blocks 17. A fixed plate 19 is fixedly connected to the outer wall of each rotating shaft 18. A rotating plate 20 is fixedly connected to one side wall of each of the two fixed plates 19. Multiple second guide rollers 21 are rotatably connected to the opposite sides of the two rotating plates 20. When the cardboard is being conveyed, it first contacts the surface of the second guide roller 21, so that the second guide roller 21 can smoothly guide the cardboard onto the predetermined travel path. Worm gears 22 are fixedly connected to the outer walls of the two rotating shafts 18. The opposite sides of the two movable plates 15... Both U-shaped plates 23 are fixedly connected, and worm gears 24 are rotatably connected between the inner walls of both sides of the two U-shaped plates 23. Both worm gears 24 mesh with corresponding worm wheels 22. One end of each worm gear 24 passes through the corresponding U-shaped plate 23 and is fixedly connected to a knob 25. Both knobs 25 are provided with a rubber layer. By rotating the knob 25, the worm gears 24 are driven to rotate inside the U-shaped plates 23. Since the worm gears 24 mesh with the worm wheels 22, the worm wheels 22 rotate accordingly, which in turn drives the rotating shaft 18 to rotate. The rotating shaft 18 drives the fixed plate 19 and the rotating plate 20 to rotate, thereby realizing the adjustment of the angle of the second guide roller 21. The adjustment of the angle of the second guide roller 21 can adapt to the conveying and limiting requirements of different specifications of paperboard, improving the versatility of the device.

[0027] In this utility model, when it is necessary to cut cardboard of different specifications, the motor 13 is started, which drives the bidirectional threaded rod 11 to rotate, thereby causing the two sliders 12 to slide relative to each other or back to back in the slide groove 10. The movement of the sliders 12 will drive the moving plate 15 to move through the moving rod 14, thereby changing the distance between the two moving plates 15 to adapt to cardboard of different widths.

[0028] Then, the knob 25 can be turned to drive the worm 24 to rotate, which in turn causes the worm wheel 22 meshing with the worm 24 to rotate. The rotation of the worm wheel 22 will cause the rotating shaft 18 to rotate, which in turn drives the fixed plate 19 and the rotating plate 20 to rotate, thereby adjusting the angle of the second guide roller 21. In this way, by adjusting the angle of the second guide roller 21, the conveying direction of different specifications of paperboard can be adapted, so that the paperboard can enter the limiting channel and be conveyed along the predetermined path.

[0029] After the above adjustments are completed, the cardboard is placed on the conveyor 1 to start conveying. The cardboard first contacts the surface of the second guide roller 21 on the rotating plate 20. The second guide roller 21 guides the cardboard to the predetermined travel path at the adjusted angle, ensuring that the cardboard smoothly enters the limiting channel formed by the first guide roller 16 and the second guide roller 21. During the conveying process, the first guide roller 16 and the second guide roller 21 on both sides jointly restrict the movement of the cardboard in the width direction.

[0030] Furthermore, during the conveying process, when the cardboard is conveyed to the mounting plate 3, due to the cardboard's own thickness, it will generate an upward supporting force on the rotating roller 6 after contacting it, pushing the mounting frame 5 to move upward along the sliding rod 4. At this time, the spring 8 sleeved on the outer wall of the sliding rod 4 is compressed, and the spring 8 will generate a reverse elastic restoring force. This force is transmitted to the rotating roller 6 through the mounting frame 5, so that the rotating roller 6 always adheres to the upper surface of the cardboard with appropriate pressure, restricting the movement of the cardboard in the thickness direction, thereby achieving multi-directional limiting of the cardboard and ensuring that the cardboard maintains a stable position and posture during the cutting process.

[0031] With the protection of multi-directional limiting, the cardboard arrives below the cutting mechanism 2. The cutting mechanism 2 cuts the cardboard in the limiting state according to the preset cutting program and size parameters. Since the cardboard is limited in multiple directions in the up and down and left and right directions through the rotating roller 6, the first guide roller 16 and the second guide roller 21 during the conveying process, the cutting mechanism 2 can be aligned with the cutting position, which improves the cutting accuracy and quality, reduces the cutting error caused by the displacement of the cardboard, and ensures that the size of the cut carton meets the design requirements. After the cutting is completed, the limiting parts remain in the original position, waiting for the next cardboard to enter the device, and repeating the above limiting and cutting process to achieve continuous and efficient carton processing operation.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting device capable of restraining a carton, comprising a conveyor (1), characterized in that, A cutting mechanism (2) is installed at the upper end of the conveyor (1), and a connecting plate (9) is fixedly connected to the lower end of the conveyor (1). A groove (10) is provided in the connecting plate (9). A bidirectional threaded rod (11) is rotatably connected between the inner walls of the two sides of the groove (10). A slider (12) is threadedly connected to both threaded ends of the bidirectional threaded rod (11). The lower ends of the two sliders (12) are slidably connected to the inner wall of the groove (10). A moving rod (14) is fixedly connected to the upper end of the two sliders (12). The other ends of the two moving rods (14) extend to the outside. The two movable plates (15) are fixedly connected to each other. Multiple first guide rollers (16) are rotatably connected to the opposite sides of the two movable plates (15). Two connecting blocks (17) are fixedly connected to one side wall of each of the two movable plates (15). A rotating shaft (18) is rotatably connected between each pair of cooperating connecting blocks (17). A fixed plate (19) is fixedly connected to the outer wall of each rotating shaft (18). A rotating plate (20) is fixedly connected to one side wall of each of the two fixed plates (19). Multiple second guide rollers (21) are rotatably connected to the opposite sides of the two rotating plates (20).

2. The cutting device for limiting the position of a cardboard box according to claim 1, characterized in that, The upper end of the conveyor (1) is fixedly connected to an installation plate (3), and two sliding rods (4) slide through the installation plate (3). The lower ends of the two sliding rods (4) are fixedly connected to an installation frame (5). Rotating rollers (6) are rotatably connected between the inner walls on both sides of the installation frame (5). The upper ends of the two sliding rods (4) are fixedly connected to a limit plate (7).

3. The cutting device for limiting the position of a cardboard box according to claim 2, characterized in that, Springs (8) are fitted on the outer walls of both sliding rods (4), and the two ends of the two springs (8) are elastically connected to the upper end of the mounting bracket (5) and the lower end of the mounting plate (3), respectively.

4. The cutting device for limiting the position of a cardboard box according to claim 1, characterized in that, A motor (13) is installed on the outer wall of the connecting plate (9). The output shaft of the motor (13) extends into the groove (10) and is fixedly connected to one end of the bidirectional threaded rod (11).

5. A cutting device for limiting the position of a cardboard box according to claim 1, characterized in that, The outer walls of the two rotating shafts (18) are fixedly connected with worm gears (22), and the opposite sides of the two moving plates (15) are fixedly connected with U-shaped plates (23). The inner walls of the two U-shaped plates (23) are rotatably connected with worms (24), and the two worms (24) mesh with the corresponding worm gears (22).

6. A cutting device for limiting the position of a cardboard box according to claim 5, characterized in that, One end of each of the two worm gears (24) passes through a corresponding U-shaped plate (23) and is fixedly connected to a knob (25), and both knobs (25) are provided with a rubber layer.

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