Double rotary knife continuous paper cutting mechanism

Abstract

The utility model discloses a double rotary knife continuous paper cutting mechanism relates to paper cutting mechanism technical field, including: rack, double rotary knife, transmission assembly, drive assembly and adjusting assembly, wherein, adjusting assembly is symmetrically installed on the front and rear both sides of rack, and adjusting assembly includes bolt and nut, the bolt swing installation is on fixed base, the nut is screwed on the bolt, and the one end of bolt near the rack is free end, the free end and the rack abutment cooperation are used for adjusting the inclination angle of rack, the utility model discloses the cooperation of double rotary knife and adjusting assembly makes paper not need to stay below paper cutting mechanism, and paper conveying mechanism can continuous operation, and double rotary knife does scissors paper cutting action, reduces the generation of burr, and promotes paper cutting quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper cutting mechanisms, specifically relating to a double rotary blade continuous paper cutting mechanism. Background Technology

[0002] Currently, the paper cutting mechanisms used in the market are usually vertical, meaning the paper needs to stay below the cutting mechanism for a period of time before the mechanism cuts the paper vertically downwards. This method has the following drawbacks: (1) The paper needs to stay below the paper cutting mechanism, and continuous operation is not possible; (2) Cutting paper vertically downwards will produce rough edges; Therefore, there is an urgent need to design a paper cutting structure that can operate continuously and reduce burrs. Summary of the Invention

[0003] The purpose of this invention is to provide a double rotary blade continuous paper cutting mechanism to solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The double rotary blade continuous paper cutting mechanism includes: frame; A double rotary blade includes an upper cutting shaft and a lower cutting shaft arranged in parallel. An upper cutting blade is provided on the upper cutting shaft, and the upper cutting blade is inclined to the axis of the upper cutting shaft. A lower cutting blade is provided on the lower cutting shaft, and the lower cutting blade is inclined to the axis of the lower cutting shaft. Transmission assembly; installed at one end of the double rotary cutter, enabling the upper and lower cutter shafts to rotate synchronously in opposite directions; Drive component; connected to the transmission component; The adjustment components are symmetrically installed on the front and rear sides of the frame. The adjustment components include bolts, nuts and fixing seats. The bolts are threaded onto the fixing seats and the nuts are threaded onto the bolts. The fixing seats are fixedly connected to external fasteners. The end of the bolt closest to the frame is a free end, which abuts against the frame to adjust the tilt angle of the frame.

[0005] As an alternative or supplement to the above-mentioned double rotary blade continuous paper cutting mechanism, two upper cutting blades are symmetrically arranged on the upper cutting blade shaft, and two lower cutting blades are symmetrically arranged on the lower cutting blade shaft.

[0006] As an alternative or supplement to the aforementioned double rotary blade continuous paper cutting mechanism, both the upper and lower cutting shafts are provided with blade grooves, and the upper and lower cutting blades are respectively installed in the blade grooves.

[0007] As an alternative or supplement to the above-mentioned double rotary blade continuous paper cutting mechanism, the tilt angle θ of the upper and lower cutters is 0.1°-2°.

[0008] As an alternative or supplement to the aforementioned double rotary blade continuous paper cutting mechanism, a lubricating oil tank is provided on one side of the frame, and the transmission component is located in the lubricating oil tank.

[0009] As an alternative or supplement to the aforementioned double rotary blade continuous paper cutting mechanism, the transmission assembly includes a driving gear and a driven gear that are meshed together. The driving gear is installed at one end of the upper or lower cutter shaft, and the driven gear is installed at the same end of the lower or upper cutter shaft.

[0010] As an alternative or supplement to the aforementioned double rotary blade continuous paper cutting mechanism, both the driving gear and the driven gear are helical gears.

[0011] As an alternative or supplement to the aforementioned double rotary blade continuous paper cutting mechanism, the two ends of the driving gear and the driven gear are connected to the frame via bearings, and an oil-sealing end cap is provided on the outside of the frame.

[0012] As an alternative or supplement to the aforementioned dual-rotary-blade continuous paper cutting mechanism, the adjustment component is installed near the edge of the frame, and a stabilizing component is provided on the opposite side of the adjustment component. The structure of the stabilizing component is exactly the same as that of the adjustment component.

[0013] Compared with the prior art, the present invention has the following advantages: The double rotary blade continuous paper cutting mechanism of the present invention is provided with an upper cutter and a lower cutter, both of which are inclined. The upper cutter and the lower cutter are similar to scissors, which can continuously cut the paper from one end to the other; and the tilt angle of the frame can be adjusted by the adjustment component to match the tilt angle of the upper cutter and the lower cutter, so that the cross-cutting line always remains horizontal and straight. Compared with the prior art, the paper does not need to stay under the paper cutting mechanism of the present invention, which can achieve continuous operation, and reduces burrs, resulting in higher paper cutting quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the double rotary blade continuous paper cutting mechanism of this utility model; Figure 2 This is a schematic diagram of the structure of the double rotary cutter of this utility model; Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model; Figure 4 This is a schematic diagram of the cross-section of this utility model.

[0015] In the diagram: 100, frame; 200, upper cutter shaft; 210, upper cutter; 300, lower cutter shaft; 310, lower cutter; 400, adjusting assembly; 410, bolt; 420, nut; 430, mounting base; 600, cutter groove; 700, stabilizing assembly; 800, oil sealing end cap; 900, lubricating oil tank; 910, drive gear; 920, driven gear. Detailed Implementation

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0017] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0018] In the description of this utility model, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model.

[0019] Example like Figures 1-4 As shown, the dual rotary blade continuous paper cutting mechanism provided in this embodiment is integrated on the paper production line. After the paper is cut by the vertical cutting mechanism, it is transferred to the dual rotary blade continuous paper cutting mechanism for horizontal cutting. It includes: frame 100, dual rotary blades, transmission assembly, drive assembly and adjustment assembly 400.

[0020] Among them, see Figure 1 The frame 100 is the housing of the entire paper cutting mechanism, used to install the double rotary blades, transmission components and drive components; and the entire paper cutting mechanism is installed on the paper production line through the frame 100; in this embodiment, the frame 100 has a rectangular hollow structure.

[0021] See Figure 2 The core of the paper cutting mechanism is the double rotary blade, which includes an upper cutting shaft 200 and a lower cutting shaft 300 arranged in parallel. One end of the upper cutting shaft 200 and the lower cutting shaft 300 is connected to a transmission assembly, and both ends of the upper cutting shaft 200 and the lower cutting shaft 300 are mounted on the frame 100 through bearings. The transmission assembly includes a drive gear 910 and a driven gear 920. One end of the upper cutting shaft 200 or the lower cutting shaft 300 is connected to the drive gear 910, and the same end of the lower cutting shaft 300 or the upper cutting shaft 200 is connected to the driven gear 920. The drive gear 910 and the driven gear 920 mesh and drive each other, thereby realizing the synchronous opposite rotation of the upper cutting shaft 200 and the lower cutting shaft 300. The drive assembly is connected to the drive gear 910.

[0022] Preferably, both the driving gear 910 and the driven gear 920 are helical gears.

[0023] See Figure 2 An upper cutter 210 is provided on the upper cutter shaft 200, and the upper cutter 210 is inclined to the axis of the upper cutter shaft 200. A lower cutter 310 is provided on the lower cutter shaft 300, and the lower cutter 310 is inclined to the axis of the lower cutter shaft 300. Specifically, both the upper cutter shaft 200 and the lower cutter shaft 300 are provided with a knife groove 600, and the upper cutter 210 and the lower cutter 310 are installed in the knife groove 600. In use, the paper is located between the upper cutter shaft 200 and the lower cutter shaft 300, and the upper cutter 210 cuts from above the paper. The paper is cut downwards, with the lower cutter 310 cutting upwards from below the paper, and the upper cutter 210 working in conjunction with the lower cutter 310. The design of the upper and lower cutters, inclined to the axis, ensures that one end of each cutter contacts the paper first, and as the cutter shaft rotates, the blades of the upper and lower cutters successively contact the paper, similar to the cutting action of scissors. Compared to existing technologies, this method allows the paper to be continuously conveyed along the conveying direction without needing to stop below the cutting mechanism. Furthermore, the scissor-like cutting method produces fewer rough edges compared to a straight-up-down cutting method, resulting in higher cutting quality.

[0024] Since both the upper and lower cutters are tilted, the cross-cutting line is diagonal, which cannot meet the normal paper cutting requirements. Therefore, an adjustment component 400 is also required.

[0025] See Figure 1 and Figure 3The adjustment components 400 are symmetrically installed on the front and rear sides of the frame 100 and near the edge of the frame 100. The adjustment components 400 include bolts 410, nuts 420, and fixing seats 430. Bolts 410 are threaded onto the fixing seats 430, and nuts 420 are threaded onto the bolts 410. The fixing seats 430 are fixedly connected to an external fixing member. The end of the bolt 410 near the frame 100 is a free end, which abuts against the frame 100 to adjust the tilt angle of the frame 100. The external... The fixing components are other fixing parts of the paper production line; when in use, turn the nut 420 clockwise and the bolt 410 moves toward the side of the frame 100; conversely, turn the nut 420 counterclockwise and the bolt 410 moves away from the side of the frame 100. By adjusting the position of the bolt 410 on the two adjusting components 400 on the front and rear sides, the front and rear sides of the frame 100 are always in contact with the two bolts 410, thereby adjusting the tilt angle of the frame 100 to match the tilt angle of the upper and lower cutters 310, so that the cross-cutting line always remains horizontal and straight.

[0026] See Figure 4 The transverse tangent is represented in the XY plane, where the X-axis represents the transverse cutting direction of the paper, the Y-axis represents the vertical cutting direction, and A represents the transverse tangent cut by the paper cutting mechanism before adjustment by the adjustment component 400. It can be seen that due to the tilted setting of the upper and lower cutters, there is an angle difference between the cut transverse tangent and the actual transverse cutting direction, resulting in the transverse tangent being tilted. After adjustment by the adjustment component 400, the transverse tangent cut by the paper cutting mechanism completely coincides with the X-axis, that is, it is exactly the same as the actual transverse cutting direction. The adjustment principle is: adjust in the opposite direction of the tilt of the transverse tangent, and the adjustment angle is the same as the tilt angle of the transverse tangent.

[0027] In addition, a lubricating oil tank 900 is provided on one side of the frame 100, and the transmission assembly is located in the lubricating oil tank 900; an oil sealing end cap 800 is provided on the outside of the frame 100 to prevent the lubricating oil in the lubricating oil tank 900 from entering the frame 100.

[0028] In one embodiment, two upper cutters 210 are symmetrically arranged on the upper cutter shaft 200, with an included angle of 180° between the two upper cutters 210; two lower cutters 310 are symmetrically arranged on the lower cutter shaft 300, with an included angle of 180° between the two lower cutters 310; the two upper cutters 210 cooperate with the two lower cutters 310 to cut paper; by setting up two upper and lower cutters, when the upper and lower cutter shafts rotate, one sheet of paper is cut with half a rotation, and two sheets of paper are cut with a full rotation; thus improving paper cutting efficiency.

[0029] In one embodiment, see Figure 2The tilt angle θ of the upper cutter 210 and the lower cutter 310 is 0.1°-2°; by setting the tilt angle, the paper cutting accuracy is improved.

[0030] In one embodiment, see Figure 1 On the opposite side of the adjusting component 400, a stabilizing component 700 is also provided. The structure of the stabilizing component 700 is exactly the same as that of the adjusting component 400. It will not be described in detail here. When using it, first loosen the stabilizing component 700, and then adjust the tilt angle of the frame 100 through the adjusting component 400. After the adjustment is complete, tighten the adjusting component 400 and the stabilizing component 900. By setting the stabilizing component 700, the stability of the frame 100 can be improved, the mechanical vibration generated by the paper cutting mechanism during operation can be reduced, and thus the paper cutting quality can be improved.

[0031] The double rotary blade continuous paper cutting mechanism of this utility model is provided with an upper cutter 210 and a lower cutter 310, both of which are inclined. The upper cutter 210 and the lower cutter 310 are similar to scissors and can continuously cut paper from one end to the other. The tilt angle of the frame 100 is adjusted by the adjusting component 400 to match the tilt angle of the upper cutter 210 and the lower cutter 310, so that the cross-cutting line always remains horizontal and straight. Compared with the prior art, the paper does not need to stay under the paper cutting mechanism of this utility model, which can achieve continuous operation, reduce burrs, and improve the quality of paper cutting.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-rotary-blade continuous paper cutting mechanism, characterized in that, include: Rack (100); Double rotary blade; It includes an upper cutting shaft (200) and a lower cutting shaft (300) arranged in parallel. An upper cutting blade (210) is provided on the upper cutting shaft (200), and the upper cutting blade (210) is inclined to the axis of the upper cutting shaft (200). A lower cutting blade (310) is provided on the lower cutting shaft (300), and the lower cutting blade (310) is inclined to the axis of the lower cutting shaft (300). Transmission components; Installed at one end of the double rotary cutter, so that the upper cutter shaft (200) and the lower cutter shaft (300) rotate synchronously in opposite directions; Drive component; connected to the transmission component; The adjustment assembly (400) is symmetrically installed on the front and rear sides of the frame (100). The adjustment assembly (400) includes a bolt (410), a nut (420) and a fixing seat (430). The bolt (410) is threaded onto the fixing seat (430), the nut (420) is threaded onto the bolt (410), and the fixing seat (430) is fixedly connected to an external fastener. The end of the bolt (410) near the frame (100) is a free end, which abuts against the frame (100) to adjust the tilt angle of the frame (100).

2. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, Two upper cutters (210) are symmetrically arranged on the upper cutter shaft (200), and two lower cutters (310) are symmetrically arranged on the lower cutter shaft (300).

3. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, Both the upper cutting shaft (200) and the lower cutting shaft (300) are provided with cutting grooves (600), and the upper cutting blade (210) and the lower cutting blade (310) are respectively installed in the cutting grooves (600).

4. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, The tilt angle θ of the upper cutter (210) and the lower cutter (310) is 0.1°-2°.

5. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, A lubricating oil tank (900) is provided on one side of the frame (100), and the transmission assembly is located in the lubricating oil tank (900).

6. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, The transmission assembly includes a drive gear (910) and a driven gear (920) meshing together. The drive gear (910) is mounted at one end of the upper cutter shaft (200) or the lower cutter shaft (300), and the driven gear (920) is mounted at the same end of the lower cutter shaft (300) or the upper cutter shaft (200).

7. The double rotary blade continuous paper cutting mechanism according to claim 6, characterized in that, Both the driving gear (910) and the driven gear (920) are helical gears.

8. The double rotary blade continuous paper cutting mechanism according to claim 6, characterized in that, The two ends of the driving gear (910) and driven gear (920) are connected to the frame (100) by bearings, and an oil sealing end cap (800) is provided on the outside of the frame (100).

9. The double rotary blade continuous paper cutting mechanism according to claim 1, characterized in that, The adjustment component (400) is installed near the edge of the frame (100), and a stabilizing component (700) is provided on the opposite side of the adjustment component (400). The structure of the stabilizing component (700) is exactly the same as that of the adjustment component (400).

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