Multi-roller linkage type carton cutting device

Abstract

The utility model relates to the technical field of carton production, in particular to a multi-roller linkage type carton cutting device which comprises a base, supporting plates are arranged on the front side and the rear side of the base respectively, and two first swing arms and two second swing arms are rotationally connected to the inner sides of the supporting plates through a first fixing shaft and a second fixing shaft respectively. A connecting arm is rotationally mounted in the middle of an arm rod of the first swing arm through a third fixing shaft; a cutting roller is rotationally installed between the inner ends of the bottoms of the two first swing arms, a supporting roller is rotationally installed between the inner ends of the bottoms of the two second swing arms, and the cutting roller and the supporting roller rotate synchronously through a chain wheel chain belt. The distance between the upper cutting roller and the lower supporting roller can be adjusted in time so as to adapt to limiting of cartons with different thicknesses, it is guaranteed that the cutting blade can smoothly and stably act on a paperboard, and the cutting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box production technology, and in particular to a multi-roller linkage cardboard box cutting device. Background Technology

[0002] Existing automated carton production machines, categorized by the type of cutting blades or the type of carton cutting edge, mainly include serrated blades and flat-blade blades. Serrated blades are blades with serrated edges, while flat-blade blades are blades without serrations, having a straight, linear cutting edge. Existing flat-blade blades produce very clean cuts, but due to blade width limitations, they can only cut cartons of specific thicknesses. When dealing with cartons of different thicknesses, the cutting blades need to be changed, which is cumbersome in practice. To ensure that the cutting blades can cut cardboard of different widths, a multi-roller linkage carton cutting device is proposed. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-roller linkage carton cutting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A multi-roller linkage carton cutting device includes a base, and support plates are respectively provided on the front and rear edges of the upper surface of the base. Two first swing arms and two second swing arms are rotatably connected to the inner side of the support plates through a first fixed shaft and a second fixed shaft, respectively. A connecting arm is rotatably installed in the middle part of the arm of the first swing arm through a third fixed shaft.

[0006] In a preferred embodiment, the top of the support plate is provided with a top plate, which is mounted on two support plates. The bottom left and right sides of the top plate are rotatably connected to symmetrically arranged cylinders, and the pneumatic rods at the output ends of the cylinders are respectively connected to the first swing arm on the corresponding side.

[0007] The bottom of the second swing arm on each side is connected to the lower end of the connecting arm on the corresponding side.

[0008] A cutting roller is rotatably mounted between the inner bottom ends of the two first swing arms, and a first set of sprockets that rotates coaxially with the cutting roller is provided at the outer bottom end.

[0009] A support roller is rotatably mounted between the inner bottom ends of the two second swing arms, and a second set of sprockets that rotates coaxially with the support roller is provided at the outer bottom end.

[0010] In a preferred embodiment, the first fixed shaft and the second fixed shaft are arranged vertically aligned, the first swing arm is symmetrically separated on the left and right sides, the second swing arm is symmetrically separated on the left and right sides, and the first fixed shaft, the second fixed shaft, the first swing arm and the second swing arm on the same side and the connecting arm form a parallelogram structure.

[0011] A third set of sprockets is provided at the middle part of the outer side of the connecting arm, and the three sets of sprockets are connected to each other by their respective chain belts.

[0012] In a preferred embodiment, the cutting roller has transverse cutting blades on its surface, and the cutting blades on both sides of the cutting roller are positioned in the same way.

[0013] In a preferred embodiment, two support rollers are used to place cardboard, which is then pressed down by an upper cutting roller and cut using a cutting blade.

[0014] In a preferred embodiment, the first swing arm is equipped with a drive motor that controls the rotation of any set of sprockets.

[0015] The beneficial effects of this utility model are:

[0016] The cutting device proposed in this solution solves the problems of existing cutting devices being unable to meet the cutting requirements of cardboard of different thicknesses, requiring frequent blade replacements, and having a limited range of applications. The two support rollers at the bottom can provide support for the carton cutting, and together with the upper cutting roller, they can smoothly cut the conveyed carton. The gap between the upper cutting roller and the lower support roller can be adjusted in time to adapt to the limit of cartons of different thicknesses, ensuring that the cutting blade can act smoothly and stably on the cardboard, resulting in a flat cut and improved cutting efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external multi-roller linkage design of the cutting device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the inner support roller and the positional distribution of the cutting roller in the cutting device proposed in this utility model;

[0019] Figure 3 This is a top view of the base structure of the cutting device proposed in this utility model.

[0020] In the diagram: 1. Base; 2. Support plate; 3. Top plate; 4. Cylinder; 5. First fixed shaft; 6. Second fixed shaft; 7. First swing arm; 8. Second swing arm; 9. Cutting roller; 10. Cutting blade; 11. Support roller; 12. Cardboard; 13. Sprocket; 14. Chain belt; 15. Third fixed shaft; 16. Drive motor; 17. Connecting arm. Detailed Implementation

[0021] 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.

[0022] In this embodiment, refer to Figure 1-3 A multi-roller linkage carton cutting device includes a base 1. Support plates 2 are respectively provided on the front and rear edges of the upper surface of the base 1. Two first swing arms 7 and two second swing arms 8 are rotatably connected to the inner side of the support plates 2 through a first fixed shaft 5 and a second fixed shaft 6. A connecting arm 17 is rotatably installed in the middle part of the arm of the first swing arm 7 through a third fixed shaft 15.

[0023] A top plate 3 is provided on the top of the support plate 2. The top plate 3 is mounted on the two support plates 2. The bottom left and right sides of the top plate 3 are rotatably connected to symmetrically arranged cylinders 4. The pneumatic rods at the output ends of the cylinders 4 are respectively connected to the first swing arm 7 on the corresponding side.

[0024] The cylinders 4 on both sides are designed as synchronously controlled cylinders to ensure that the first swing arms 7 on both sides maintain the same rotation amplitude and rotation state.

[0025] The bottom of the second swing arms 8 on both sides is connected to the lower end of the connecting arm 17 on the corresponding side.

[0026] The structure that needs to be explained is as follows:

[0027] A cutting roller 9 is rotatably mounted between the inner bottom ends of the two first swing arms 7, and a first set of sprockets 13 that rotates coaxially with the cutting roller 9 is provided at the outer bottom end;

[0028] A support roller 11 is rotatably mounted between the inner bottom ends of the two second swing arms 8, and a second set of sprockets 13 is provided at the outer bottom end, which rotates coaxially with the support roller 11.

[0029] A third set of sprockets 13 is located at the middle of the outer side of the connecting arm 17. These three sets of sprockets 13 are connected in pairs via their respective chain belts 14. Each of the first swing arms 7 on both sides is equipped with a drive motor 16 to control the rotation of any set of sprockets 13. The function of the drive motor 16 is to control the rotation of that set of sprockets 13 and achieve multi-roller linkage through chain belt transmission 14. That is, when the cutting roller 9 rotates, the support roller 11 will rotate synchronously.

[0030] The first fixed shaft 5 and the second fixed shaft 6 are arranged vertically aligned. The first swing arm 7 is symmetrically separated on the left and right sides, and the second swing arm 8 is symmetrically separated on the left and right sides. The first fixed shaft 5, the second fixed shaft 6, and the first swing arm 7, the second swing arm 8 on the same side and the connecting arm 17 form a parallelogram structure.

[0031] As attached Figure 1 Or attached Figure 2 As shown, when the cylinder 4 pushes or pulls the corresponding first swing arm 7 to rotate around the fulcrum, the second swing arm 8 located below will rotate synchronously by the corresponding amplitude.

[0032] When the first swing arm 7 and the second swing arm 8 rotate to a certain extent, the distance between the support roller 11 and the cutting roller 9 is changed, thus enabling the cutting of paperboard 12 of different thicknesses.

[0033] The cutting roller 9 has transverse cutting blades 10 on its roller surface, and the cutting blades 10 on both sides of the cutting roller 9 are in the same position.

[0034] The direction of rotation needs to be specifically specified; please refer to the instruction manual. Figure 1 It can be seen that when the support roller 11 and the cutting roller 9 rotate synchronously, the support roller 11 and the cutting roller 9 on the same side rotate in the same direction. Therefore, the two support rollers 11 can be used to place the cardboard 12, and the cardboard 12 is pressed by the upper cutting roller 9 and then cut by the cutting blade 10. The support roller 11 can be used to support the cardboard 12 on the one hand and to convey the cardboard 12 on the other hand, while the cutting roller 9, because its rotation direction is exactly opposite to the forward direction of the cardboard 12, can use the cutting blade 10 to cut the forward-moving cardboard 12.

[0035] For detailed instructions, please refer to the attached manual. Figure 1 Taking the support rollers 11 as an example, when both support rollers 11 rotate counterclockwise, the cardboard 12 placed on the two support rollers 11 will be conveyed to the left. Since the two cutting rollers 9 also rotate counterclockwise, the rotation direction of the cutting rollers 9 is exactly opposite to the conveying direction of the cardboard 12, thus enabling cutting. The purpose of setting cutting rollers 9 on both sides is that the first is used for cutting, and the second is used for trimming.

[0036] 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 multi-roller linkage type carton cutting device, characterized in that, Includes a base (1), and support plates (2) are respectively provided on the front and rear sides of the upper surface of the base (1). Two first swing arms (7) and two second swing arms (8) are rotatably connected to the inner side of the support plates (2) through a first fixed shaft (5) and a second fixed shaft (6). A connecting arm (17) is rotatably installed in the middle part of the arm of the first swing arm (7) through a third fixed shaft (15). The bottom of the second swing arms (8) on both sides are connected to the lower end of the connecting arm (17) on the corresponding side; A cutting roller (9) is rotatably mounted between the inner bottom ends of the two first swing arms (7), and a first set of sprockets (13) is provided at the outer bottom end, which rotates coaxially with the cutting roller (9). A support roller (11) is rotatably mounted between the inner bottom ends of the two second swing arms (8), and a second set of sprockets (13) is provided at the outer bottom end, which rotates coaxially with the support roller (11). The third set of sprockets (13) is provided at the middle part of the outer side of the connecting arm (17). The three sets of sprockets (13) are connected to each other through their respective chain belts (14).

2. The multi-roller linkage carton cutting device according to claim 1, characterized in that, The top of the support plate (2) is provided with a top plate (3), which is mounted on two support plates (2). The bottom left and right sides of the top plate (3) are rotatably connected to symmetrically arranged cylinders (4). The pneumatic rods at the output end of the cylinders (4) are respectively connected to the first swing arm (7) on the corresponding side.

3. The multi-roller linkage carton cutting device according to claim 1, characterized in that, The cutting roller (9) has transverse cutting blades (10) on its roller surface, and the cutting blades (10) on both sides of the cutting roller (9) are in the same position.

4. The multi-roller linkage carton cutting device according to claim 3, characterized in that, The cardboard (12) is placed on two support rollers (11), and the cardboard (12) is pressed by the upper cutting roller (9) and cut by the cutting blade (10).

5. The multi-roller linkage carton cutting device according to claim 1, characterized in that, The first swing arm (7) is equipped with a transmission motor (16) that controls the rotation of any set of sprockets (13).

6. The multi-roller linkage carton cutting device according to claim 1, characterized in that, The first fixed shaft (5) and the second fixed shaft (6) are arranged vertically aligned. The first swing arm (7) is symmetrically separated on the left and right sides. The second swing arm (8) is symmetrically separated on the left and right sides. The first fixed shaft (5), the second fixed shaft (6), and the first swing arm (7), the second swing arm (8) on the same side and the connecting arm (17) form a parallelogram structure.

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