Rotary rolling cutting device for packaging card paper
By installing a wind shield and a pressure plate on the cutting device, the problem of paper being lifted by the airflow generated by the high-speed rotating cutting blade is solved, achieving higher quality and more efficient cutting results while extending the blade life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-10
AI Technical Summary
During the rotary cutting process of packaging cardboard, the airflow generated by the high-speed rotating cutting blade may cause stacked papers to be lifted, resulting in uneven cut edges.
A windproof cover is placed on the outside of the cutting blade, and the pressure plate presses down synchronously to limit the movement, preventing airflow from interfering with the paper. A buffer pressure difference is formed between the rubber ring and the paper surface to prevent the paper from being lifted.
It improves the cutting quality and efficiency of packaging cardboard, ensures neat cutting edges, extends tool life, and reduces production costs.
Smart Images
Figure CN224103052U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to paper cutting equipment technical field especially a kind of packaging card paper rotary rolling cutting device. BACKGROUND
[0002] In packaging industry, cutting of packaging card paper is a crucial process, and cutting methods are different, among which rotary cutting is cutting by high-speed rotation of cutting tool and contact with paper surface, and when rolling rotary cutting, the contact mode of tool and card paper is rolling friction, compared with sliding friction of long strip cutting tool in traditional cutting mode, the friction of rolling friction is smaller, and the heat generated is also less, which not only can slow down the wear rate of tool, prolong the service life of tool, reduce production cost, but also can reduce thermal damage to card paper material due to heat generation, to ensure that the performance of packaging card paper is not affected.
[0003] However, in the process of high-speed rotation of cutting blade, the surrounding air is rotated together, the surface is subjected to strong friction and shearing action with the surrounding air, forming airflow, and the airflow can form pressure difference on the paper surface, when the upward force generated by airflow is greater than the gravity and interlayer friction of paper, the upper layer of stacked paper can be lifted, resulting in irregular cutting edge. UTILITARY MODEL
[0004] The utility model provides a kind of packaging card paper rotary rolling cutting device to solve the problems in prior art.
[0005] The technical problem solved by the utility model is realized by the following technical scheme:
[0006] A kind of packaging card paper rotary rolling cutting device, including workbench, the rotary cutting mechanism for cutting packaging paper in workbench and the conveying mechanism for conveying packaging paper, the inner top wall of workbench is connected with the receiving plate by telescopic piece, the receiving plate is connected with rotary cutting mechanism, for driving rotary cutting mechanism to cut close to packaging paper, the wind shield of wind shield that the receiving plate is connected with elastic connecting piece is connected on the outer side of rotary cutting mechanism cutting blade, for the airflow generated when high-speed rotation of cutting blade is blocked, the bottom end of wind shield is also provided with pressing plate, the pressing plate is synchronous with wind shield for the packaging paper and is pressed limit.
[0007] Preferably, the elastic connecting piece includes two sliding sleeve sliding rods and a spring connected between the two sliding rods.
[0008] Preferably, the lower end surface of the pressing plate is connected with a rubber ring in a full state in a natural state, and the rubber ring is provided with a ventilation hole.
[0009] Preferably, the pressing plate is slidably connected with a pressing piece, and the pressing piece is conical downward.
[0010] Preferably, the upper end of the wind shield is provided with an air outlet hole for air flow.
[0011] Preferably, in the free state, the lowest point of the pressing plate is lower than the lowest point of the rotary cutting mechanism.
[0012] The utility model has the beneficial effect that: through the wind shield blocks the airflow generated by the high speed rotation of the cutting blade, prevents it from interfering with the packaging paper, and at the same time, the pressing plate moves downward synchronously to press the packaging paper, prepositions the paper in advance, avoids the airflow during cutting to lift the paper and cause position deviation, and improves the cutting quality and efficiency of the packaging paper. BRIEF DESCRIPTION OF DRAWINGS
[0013] In order to more clearly illustrate the technical means, creative features, purposes and effects achieved by the utility model, the following will further describe the utility model in combination with specific drawings.
[0014] Figure 1 The utility model provides isometric structure schematic diagram for the utility model;
[0015] Figure 2 The utility model provides partial structure schematic diagram for the utility model;
[0016] Figure 3 The utility model provides structure schematic diagram for the rubber ring installation on the pressing plate in the utility model;
[0017] Figure 4 The utility model provides structure schematic diagram for the wind shield in the utility model;
[0018] Figure 5 The utility model provides section structure schematic diagram for the elastic connecting piece in the utility model.
[0019] In the drawing, 1, workbench;11, telescopic part;2, rotary cutting mechanism;3, conveying mechanism;4, receiving plate;5, elastic connecting piece;51, slide rod;52, spring;6, wind shield;61, pressing plate;62, air outlet hole;7, rubber ring;71, air hole;8, pressing piece;9, through slot;91, flexible windproof layer;92, arc sleeve. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the following will further describe the utility model in combination with specific drawings.
[0021] Referring to Figures 1-5 As shown in the figure, a packaging paper rotary rolling cutting device includes a workbench 1, a rotary cutting mechanism 2 arranged in the workbench 1 for cutting packaging paper, and a conveying mechanism 3 for conveying the packaging paper, wherein the rotary cutting mechanism 2 can include a motor and a cutting blade connected with the output shaft of the motor, and the conveying mechanism 3 can be a segmented conveying belt, and the cutting blade is located between the two conveying belts and can be used for cutting the packaging paper when the packaging paper moves to the position between the two conveying belts. An accommodating plate 4 is connected to the inner top wall of the workbench 1 through an extension piece 11, which can be a hydraulic telescopic rod or an electric telescopic rod or other mechanisms capable of linear reciprocating motion to drive the up-down movement of the rotary cutting mechanism 2 for cutting the paper. An anti-wind cover 6 is connected to the accommodating plate 4 through an elastic connecting piece 5, which is a hollow structure with an open bottom and can be covered outside the cutting blade of the rotary cutting mechanism 2 to block the airflow generated by the cutting blade rotating at high speed, so as to avoid the airflow from lifting the upper layer of the stacked packaging paper. In addition, a pressing plate 61 for synchronous movement with the anti-wind cover 6 is arranged at the bottom end of the anti-wind cover 6 for limiting the packaging paper. In a free state, the lowest point of the pressing plate 61 is lower than the lowest point of the rotary cutting mechanism 2. When the extension piece 11 drives the accommodating plate 4 and the rotary cutting mechanism 2 to move downward, the pressing plate 61 first contacts the stacked packaging paper to pre-position it. At this time, the pressing plate 61 and the anti-wind cover 6 do not continue to move downward. With the continuous downward movement of the accommodating plate 4 driven by the extension piece 11, the accommodating plate 4 compresses the elastic connecting piece 5 and drives the rotary cutting mechanism 2 to move downward to cut the packaging paper.
[0022] Referring to Figure 5 Further, the elastic connecting piece 5 includes two sliding sleeve sliding rods 51 and a spring 52 connected between the two sliding sleeve sliding rods 51. The upper sliding sleeve sliding rod 51 is connected with the accommodating plate 4, and the lower sliding sleeve sliding rod 51 is connected with the pressing plate 61. When the elastic connecting piece 5 is compressed, the two coaxially arranged sliding sleeve sliding rods 51 can make the accommodating plate 4 drive the rotary cutting mechanism 2 to move vertically to improve the cutting precision.
[0023] Referring to Figure 3As shown, further, the lower end surface of the pressing plate 61 is connected with a rubber ring 7 in a full state in a natural state, and the rubber ring 7 is provided with a gas permeable hole 71, when the pressing plate 61 is in contact with the surface of the packaging paper, the rubber ring 7 is compressed first, the air in the rubber ring 7 is discharged from the gas permeable hole 71, and the rubber ring 7 is tightly attached to the surface of the paper, at this time, the air between the rubber ring 7 and the paper is squeezed out, forming a relatively low pressure area, and the atmosphere around the paper, there is a pressure difference between the upper and lower surfaces of the paper, this pressure difference makes the paper be tightly pressed, when the cutting is completed, the telescopic part 11 drives the receiving plate 4 to move upward, the rotary cutting mechanism 2 first separates from the contact with the paper, then when the elastic connecting part 5 returns to the initial state, it drives the wind shield 6 and the pressing plate 61 to move upward, when the pressing plate 61 is lifted, the rubber ring 7 is no longer compressed and begins to recover, air is taken in from the gas permeable hole 71, because it takes a certain time to take in air, in this process, the pressure between the rubber ring 7 and the paper will not suddenly decrease, but slowly change, so as to provide a buffer time for the paper, so that it will not be quickly lifted due to the sudden change of pressure, at the same time, the speed of the rubber ring 7 recovering to the original state is relatively slow, which also avoids the suction force generated by the rapid rebound of the rubber ring 7 from lifting the uppermost layer of paper.
[0024] Referring to Figure 3 As shown, further, the lower end surface of the pressing plate 61 is connected with a rubber ring 7 in a full state in a natural state, and the rubber ring 7 is provided with a gas permeable hole 71, when the pressing plate 61 is in contact with the surface of the packaging paper, the rubber ring 7 is compressed first, the air in the rubber ring 7 is discharged from the gas permeable hole 71, and the rubber ring 7 is tightly attached to the surface of the paper, at this time, the air between the rubber ring 7 and the paper is squeezed out, forming a relatively low pressure area, and the atmosphere around the paper, there is a pressure difference between the upper and lower surfaces of the paper, this pressure difference makes the paper be tightly pressed, when the cutting is completed, the telescopic part 11 drives the receiving plate 4 to move upward, the rotary cutting mechanism 2 first separates from the contact with the paper, then when the elastic connecting part 5 returns to the initial state, it drives the wind shield 6 and the pressing plate 61 to move upward, when the pressing plate 61 is lifted, the rubber ring 7 is no longer compressed and begins to recover, air is taken in from the gas permeable hole 71, because it takes a certain time to take in air, in this process, the pressure between the rubber ring 7 and the paper will not suddenly decrease, but slowly change, so as to provide a buffer time for the paper, so that it will not be quickly lifted due to the sudden change of pressure, at the same time, the speed of the rubber ring 7 recovering to the original state is relatively slow, which also avoids the suction force generated by the rapid rebound of the rubber ring 7 from lifting the uppermost layer of paper.
[0025] Referring to Figure 2 As shown, further, the upper end of the wind shield 6 is provided with an air outlet hole 62 for air discharge, to guide the orderly discharge of air flow in the wind shield 6, reduce the turbulence and backflow of air flow in the wind shield 6, thereby reducing the disturbance of air flow to the surface of the paper, and further preventing the paper from being lifted accidentally.
[0026] It should be noted that, since the rotation cutting mechanism 2 continues to move downward following the telescopic member 11 after the wind shield 6 stops moving downward, a through slot 9 is formed on the wind shield 6 for the movement of the motor output shaft, and in order to avoid the air leakage of the wind shield 6 affecting the paper, a flexible windproof layer 91 such as a corrugated rubber sheet is arranged in the through slot 9 to prevent the air, and an arc-shaped sleeve 92 rotating with the motor output shaft is arranged at the lower end of the flexible windproof layer 91, and the flexible windproof layer 91 is stretched or compressed with the change of the position of the motor output shaft in the wind shield 6.
[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. A rotary cutting device for cutting packaging paper, comprising a worktable (1), a rotary cutting mechanism (2) arranged in the worktable (1) for cutting the packaging paper, and a conveying mechanism (3) for conveying the packaging paper, characterized in that, The inner top wall of the workbench (1) is connected with a receiving plate (4) through a telescopic piece (11), the receiving plate (4) is connected with the rotary cutting mechanism (2), used for driving the rotary cutting mechanism (2) to cut the wrapping paper, the receiving plate (4) is connected with a wind shield (6) outside the cutting blade of the rotary cutting mechanism (2) through an elastic connecting piece (5), used for blocking the airflow generated by the cutting blade rotating at high speed, the bottom end of the wind shield (6) is also provided with a pressing plate (61), the pressing plate (61) moves synchronously with the wind shield (6) and is used for pressing and limiting the wrapping paper.
2. A rotary roll cutting apparatus for packaging paper according to claim 1, wherein The elastic connecting piece (5) comprises two sliding sleeve sliding rods (51) and a spring (52) connected between the two sliding rods (51).
3. A rotary die cutting apparatus for packaging paperboard as defined in claim 1, wherein, The lower end surface of the pressing plate (61) is connected with a rubber ring (7) in a full state in a natural state, and the rubber ring (7) is provided with a breathable hole (71).
4. A rotary die cutting apparatus for packaging paperboard as defined in claim 1, wherein, The pressing plate (61) is slidingly connected with a pressing piece (8), and the lower part of the pressing piece (8) is in a downward conical shape.
5. A rotary die cutting apparatus for packaging paperboard as defined in claim 1, wherein, The upper end of the wind shield (6) is provided with an air outlet hole (62) for discharging airflow.
6. A rotary die cutting apparatus for packaging paperboard as defined in claim 1, wherein, In a free state, the lowest point of the pressing plate (61) is lower than the lowest point of the rotary cutting mechanism (2).