Adjustable cutting mechanism and paper slitting machine

Abstract

This application provides an adjustable cutting mechanism and a paper slitting machine. The adjustable cutting mechanism includes a worktable, a positioning frame, and a lifting component. The worktable has an inner cavity communicating with a blower, and multiple exhaust holes are provided on the upper side of the worktable. The positioning frame is slidably disposed on the upper side of the worktable and is driven by a linear drive component. The lifting frame is slidably disposed between the positioning frame and the worktable in a vertical direction and is driven by a lifting drive component. The lifting component is rotatable relative to the positioning frame and is driven by a rotation drive component. The lifting component has a blade and an elastic pad symmetrical about its rotation axis and can rotate until the blade or elastic pad faces the upper side of the worktable. The paper slitting machine includes the aforementioned adjustable cutting mechanism, and both have the same beneficial effects. The adjustable cutting mechanism and paper slitting machine provided by this application can promptly eliminate the impact of indentations on the support surface on paper segment recycling, ensuring the efficiency of the paper slitting process.

Description

Technical Field

[0001] This application belongs to the field of paper production technology, specifically relating to an adjustable cutting mechanism and a paper slitting machine. Background Technology

[0002] A paper slitting machine is a type of mechanical equipment used in the paper production process. Its function is to cut large rolls of paper into single sheets of specific sizes.

[0003] In the prior art, the working principle of a paper slitting machine mainly includes the following parts: first, an unwinding mechanism that can unwind large rolls of paper and feed them to the slitting machine; second, a cutting mechanism that cuts the paper into the required width and length by shearing or pressing; and third, a recycling mechanism that rolls the cut paper into rolls or stacks them into piles.

[0004] Accordingly, the workflow of a paper slitting machine includes: first, unwinding the paper through an unwinding mechanism and placing the unwound paper on the support surface of the slitting machine; then, cutting the paper through a cutting mechanism to form sections of paper with a preset width and length; finally, winding the paper sections into rolls or stacking them into piles through a recycling mechanism for easy storage and movement.

[0005] The inventors discovered that, in order to reduce wear on the working part of the cutting mechanism, the support surface used to hold the paper is usually made of rubber. However, after the existing cutting mechanism is working, the stress transmitted from the cutting part to the paper cut will act on the working surface, causing the support surface to have a dent, and the edge of the paper will be embedded in this dent, which is not conducive to the operation of the recycling mechanism. Utility Model Content

[0006] This application provides an adjustable cutting mechanism and a paper slitting machine, which aims to promptly eliminate the impact of dents on the support surface on paper recycling and ensure the efficiency of the paper slitting process.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0008] An adjustable cutting mechanism is provided, comprising:

[0009] The workbench has a hollow inner cavity, and the inner cavity is connected to a blower; the upper side of the workbench is an elastic surface for supporting paper, and has multiple exhaust holes connected to the inner cavity.

[0010] A positioning frame is slidably mounted on the upper side of the worktable and is connected to a linear drive component for transmission; and

[0011] A lifting component is slidably disposed between the positioning frame and the worktable in the vertical direction, and is connected to a lifting drive component; the lifting component has a degree of freedom to rotate relative to the positioning frame, and is connected to a rotation drive component.

[0012] The lifting component is equipped with a blade and an elastic pad. The blade and the elastic pad are symmetrically arranged about the rotation axis of the lifting component, and the lifting component can rotate so that the blade faces the upper side of the worktable, or the elastic pad faces the upper side of the worktable.

[0013] In one possible implementation, the linear drive component includes:

[0014] A transmission screw is rotatably mounted on the outside of the worktable, its axial direction being parallel to the sliding direction of the positioning frame, and the transmission screw is drively connected to a first rotary motor; and

[0015] The transmission nut is fixedly connected to the positioning frame and threadedly connected to the transmission screw.

[0016] In one possible implementation, the positioning frame has a through hole extending along the axial direction of the transmission screw, and the positioning frame has a mounting groove coaxially communicating with the through hole on one side facing the axial direction of the through hole;

[0017] The transmission nut is fixedly embedded in the mounting groove, and the transmission screw passes through the through hole.

[0018] In one possible implementation, the positioning frame has two guide holes, which are coaxially arranged and both extend in the vertical direction; the lifting component further includes:

[0019] Two connecting rods are coaxially arranged and fixedly installed on both sides of the lifting component facing the two guide holes, and the two connecting rods are respectively inserted into the two guide holes and extend out.

[0020] In one possible implementation, the rotation drive component includes:

[0021] A sliding table is slidably connected to the outer side of the positioning frame in the vertical direction; and

[0022] The second rotating motor is fixedly mounted on the sliding platform, and its power output end is coaxially connected to the connecting rod.

[0023] In one possible implementation, the lifting drive component includes:

[0024] A linear cylinder is fixedly mounted on the outer side of the positioning frame, located below the extended portion of the connecting rod, with its power output end extending upwards; and

[0025] A connecting sleeve is fixedly connected to the power output end of the linear cylinder on its outer circumference, and the connecting sleeve is fitted onto the extended part of the connecting rod.

[0026] In one possible implementation, a guide rod extending along the moving direction of the positioning frame is fixedly provided on the outer side of the worktable, and the positioning frame is slidably connected to the guide rod.

[0027] In one possible implementation, an elastic ring is embedded within the vent hole, and the inner diameter of the elastic ring gradually decreases from bottom to top.

[0028] In one possible implementation, the workbench includes:

[0029] A base for fixing to a horizontal surface, with an L-shaped snap-fit ​​connector hinged thereto; and

[0030] A support plate is disposed on the upper side of the base, and its lower side abuts against the upper side of the base; the support plate is provided with a groove suitable for the snap-fit ​​member to be inserted, so as to restrict the movement of the support plate relative to the base;

[0031] The inner cavity is formed on the base and has an upward-facing open structure; the support plate is made of elastic material, the exhaust holes are formed on the support plate, and each exhaust hole communicates with the open portion of the inner cavity.

[0032] In this embodiment, a blower can discharge outside air toward the inner cavity and then discharge it through multiple exhaust holes to blow up the paper placed on the side of the workbench, thus preventing the dents on the workbench from interlocking with the edges of the paper sections.

[0033] After the paper is placed on the upper side of the worktable, the linear drive mechanism moves the positioning frame, positioning the blade directly above the paper cutting point. Then, the lifting drive mechanism moves the lifting element, causing the blade to move downwards to cut the paper, creating two paper segments and a notch on the upper side of the worktable. Finally, as the paper segments separate from the notch by venting gas through the exhaust port, rotating the drive mechanism rotates the lifting element so that the elastic pad faces the upper side of the worktable. The lifting drive mechanism then moves the lifting element closer to or in contact with the paper segments on the worktable, preventing them from flying off the worktable due to airflow.

[0034] The adjustable cutting mechanism provided in this embodiment, compared with the prior art, can promptly eliminate the impact of dents on the support surface on paper recycling, ensuring the efficiency of the paper slitting process.

[0035] The technical solution adopted in this application also provides a paper slitting machine, including the adjustable cutting mechanism proposed in any of the preceding claims.

[0036] The beneficial effects of the paper slitting machine provided in this embodiment are the same as those of the aforementioned adjustable cutting mechanism, and will not be repeated here. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 A three-dimensional structural schematic diagram of the adjustable cutting mechanism provided in the embodiments of this application;

[0039] Figure 2 for Figure 1 A magnified view of a portion of the middle circle A;

[0040] Figure 3 for Figure 1 Side view;

[0041] Figure 4 For along Figure 3 Cross-sectional view of the middle BB line;

[0042] Figure 5 for Figure 4 A magnified view of a portion of the middle circle C;

[0043] Figure 6 This is a partially enlarged schematic diagram of the support plate and elastic ring used in the embodiments of this application from an explosion perspective;

[0044] Figure 7 This is a partially enlarged schematic diagram of the base used in the embodiments of this application;

[0045] Figure 8 This is a partially enlarged schematic diagram of the positioning frame and linear drive component used in the embodiments of this application from an exploded view.

[0046] Figure 9 This is a partial schematic diagram of the lifting component and lifting drive component used in the embodiments of this application from an exploded view.

[0047] Figure 10 This is a partially enlarged schematic diagram of the worktable, positioning frame, and rotation drive component used in the embodiments of this application in a combined state;

[0048] Explanation of reference numerals in the attached drawings: 1. Workbench; 11. Base; 111. Inner cavity; 112. Snap-fit ​​component; 12. Support plate; 121. Exhaust hole; 122. Groove; 2. Positioning frame; 21. Through hole; 22. Mounting slot; 23. Guide hole; 3. Lifting component; 31. Blade; 32. Elastic pad; 33. Connecting rod; 4. Blower; 5. Linear drive component; 51. Transmission screw; 511. First rotary motor; 52. Transmission nut; 6. Lifting drive component; 61. Linear cylinder; 62. Connecting sleeve; 7. Rotation drive component; 71. Sliding table; 72. Second rotary motor; 8. Elastic ring; 9. Guide rod. Detailed Implementation

[0049] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0050] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0051] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] Please refer to the following: Figures 1 to 10 The adjustable cutting mechanism provided in this application will now be described. The adjustable cutting mechanism proposed in this application includes a worktable 1, a positioning frame 2, and a lifting component 3.

[0054] The workbench 1 has a hollow inner cavity 111, that is, the workbench 1 adopts a hollow structure to form an inner cavity 111 that can be filled with gas. In this embodiment, the inner cavity 111 is connected to a blower 4; specifically, the blower 4 is fixedly installed on the outside of the workbench 1, and its gas discharge end is connected to the inner cavity 111.

[0055] The upper side of the workbench 1 is an elastic surface used to support the paper, that is, a surface that will form a concave mark when in contact with the blade. The upper side of the workbench 1 is also provided with multiple vent holes 121 that communicate with the inner cavity 111. The multiple vent holes 121 are arranged in a matrix to be evenly distributed on the lower side of the paper.

[0056] The positioning frame 2 is slidably mounted on the upper side of the worktable 1, and is connected to a linear drive component 5 for moving it.

[0057] The lifting component 3 is slidably disposed between the positioning frame 2 and the worktable 1 in the vertical direction, and is driven by a lifting drive component 6 for moving it. Based on this, the lifting component 3 also has a degree of freedom of rotation relative to the positioning frame 2, and is driven by a rotation drive component 7 for rotating it.

[0058] In this embodiment, a blade 31 and an elastic pad 32 are fixedly provided on the lifting member 3; the blade 31 and the elastic pad 32 are symmetrically arranged about the rotation axis of the lifting member 3, and the lifting member 3 can rotate so that the blade 31 faces the upper side of the worktable 1, or the elastic pad 32 faces the upper side of the worktable 1.

[0059] In this embodiment, the blower 4 can discharge outside air toward the inner cavity 111 and then discharge it through multiple exhaust holes 121 to blow up the paper placed on the side of the workbench 1, so as to avoid the indentation on the workbench 1 from being embedded with the edge of the paper section.

[0060] After the paper is placed on the upper side of the workbench 1, the linear drive component 5 moves the positioning frame 2, positioning the blade 31 directly above the paper cutting position. Then, the lifting drive component 6 moves the lifting component 3, causing the blade 31 to move downwards to cut the paper, forming two paper segments and creating a notch on the upper side of the workbench 1. Finally, to separate the paper segments from the notch by venting gas through the exhaust port 121, the lifting component 3 can be rotated by rotating the drive component 7 so that the elastic pad 32 faces the upper side of the workbench 1. Then, the lifting drive component 6 moves the lifting component 3, bringing the elastic pad 32 close to or in contact with the paper segments on the workbench 1, preventing the paper segments from flying off the workbench 1 due to wind.

[0061] The adjustable cutting mechanism provided in this embodiment, compared with the prior art, can promptly eliminate the impact of dents on the support surface on paper recycling, ensuring the efficiency of the paper slitting process.

[0062] In some embodiments, such as Figure 1 , Figure 2 and Figure 8 As shown, the linear drive component 5 includes a transmission screw 51 and a transmission nut 52.

[0063] The transmission screw 51 is rotatably mounted on the outside of the worktable 1, with its axis parallel to the sliding direction of the positioning frame 2, and the transmission screw 51 is connected to a first rotary motor 511 for driving its rotation.

[0064] The transmission nut 52 is fixedly connected to the positioning frame 2 and is threadedly connected to the transmission screw 51.

[0065] By adopting the above technical solution, when the first rotating motor 511 drives the transmission screw 51 to rotate, the transmission nut 52 will screw in relative to the transmission screw 51, so as to drive the positioning frame 2 to move on the predetermined trajectory.

[0066] In some embodiments, such as Figure 8 As shown, the positioning frame 2 has a through hole 21 that extends through the transmission screw 51 along the axial direction, and the positioning frame 2 has a mounting groove 22 that is coaxially connected to the through hole 21 on one side facing the axial direction of the through hole 21.

[0067] Based on the foregoing, the transmission nut 52 is fixedly embedded in the mounting groove 22, and after the transmission nut 52 and the transmission screw 51 are combined, the transmission screw 51 passes through the through hole 21.

[0068] In some embodiments, such as Figure 9 and Figure 10 As shown, the positioning frame 2 has two guide holes 23, which are coaxially arranged and extend in the vertical direction.

[0069] Based on the foregoing, the lifting component 3 also includes two connecting rods 33.

[0070] Two connecting rods 33 are coaxially arranged and fixedly installed on both sides of the lifting component 3 facing the two guide holes 23 respectively. After assembly, the two connecting rods 33 are inserted into the two guide holes 23 respectively and extend out to realize the sliding connection between the positioning frame 2 and the lifting component 3 in the vertical direction, and to ensure that the lifting component 3 has the freedom of rotation relative to the positioning frame 2.

[0071] In some embodiments, such as Figure 10 As shown, the rotation drive component 7 includes a sliding table 71 and a second rotation motor 72.

[0072] The sliding table 71 is slidably connected to the outer side of the positioning frame 2 in the vertical direction.

[0073] The second rotary motor 72 is fixedly mounted on the sliding table 71, and its power output end is coaxially connected to the connecting rod 33.

[0074] By adopting the above technical solution, when the second rotating motor 72 starts, on the one hand, its power output end will drive the connecting rod 33 to rotate, thereby driving the rotation of the lifting component 3; on the other hand, since the sliding table 71 and the positioning frame 2 are slidably connected, the connection between the second rotating motor 72 and the connecting rod 33 will not affect the driving of the lifting component 3, ensuring the structural stability of the device.

[0075] In some embodiments, such as Figure 9 As shown, the lifting drive component 6 includes a linear cylinder 61 and a connecting sleeve 62.

[0076] The linear cylinder 61 is fixedly mounted on the outer side of the positioning frame 2, located below the extended portion of the connecting rod 33, and the power output end of the linear cylinder 61 extends upward.

[0077] The outer circumferential surface of the connecting sleeve 62 is fixedly connected to the power output end of the linear cylinder 61, and the connecting sleeve 62 is fitted onto the extended part of the connecting rod 33.

[0078] By adopting the above technical solution, when the linear cylinder 61 is started, on the one hand, the connecting sleeve 62 can drive the connecting rod 33 to move in the up and down direction to achieve the technical purpose of driving the lifting component 3 to move; on the other hand, the connecting rod 33 can rotate relative to the connecting sleeve 62 to ensure that the lifting component 3 has the degree of freedom to rotate relative to the positioning frame 2.

[0079] In some embodiments, such as Figure 10 As shown, a guide rod 9 extending along the moving direction of the positioning frame 2 is fixedly provided on the outer side of the worktable 1, and the positioning frame 2 is slidably connected to the guide rod 9 to realize the sliding connection between the positioning frame 2 and the worktable 1, and to limit the sliding direction of the positioning frame 2 relative to the worktable 1.

[0080] In some embodiments, such as Figure 5 As shown, an elastic ring 8 is embedded in the exhaust hole 121, and the inner diameter of the elastic ring 8 gradually decreases from bottom to top to ensure that the force of the blown gas is sufficient to blow up the paper section.

[0081] In some embodiments, such as Figure 3 , Figure 6 and Figure 7 As shown, the workbench 1 includes a base 11 and a support plate 12.

[0082] The base 11 is used to fix it on a horizontal surface, and an L-shaped snap-fit ​​part 112 is hinged to it.

[0083] The support plate 12 is disposed on the upper side of the base 11, and its lower side abuts against the upper side of the base 11; the support plate 12 is provided with a groove 122 suitable for the snap fastener 112 to be inserted. By inserting the snap fastener 112 into the groove 122, the movement of the support plate 12 relative to the base 11 can be restricted.

[0084] The inner cavity 111 is located on the base 11 and has an open structure facing upwards; the entire support plate 12 or its upper side is made of elastic material, and the exhaust holes 121 are located on the support plate 12, with each exhaust hole 121 communicating with the open portion of the inner cavity 111.

[0085] By adopting the above technical solution, the base 11 and the support plate 12 can be opened to facilitate the cleaning of their internal space.

[0086] Based on the same inventive concept, this application also provides a paper slitting machine, including the adjustable cutting mechanism proposed in any of the preceding claims.

[0087] The beneficial effects of the paper slitting machine provided in this embodiment are the same as those of the aforementioned adjustable cutting mechanism, and will not be repeated here.

[0088] The above content is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable cutting mechanism, characterized in that, include: The workbench has a hollow inner cavity, and the inner cavity is connected to a blower; the upper side of the workbench is an elastic surface for supporting paper, and has multiple exhaust holes connected to the inner cavity. The positioning frame is slidably mounted on the upper side of the worktable and is connected to a linear drive component. as well as A lifting component is slidably disposed between the positioning frame and the worktable in the vertical direction, and is connected to a lifting drive component; the lifting component has a degree of freedom to rotate relative to the positioning frame, and is connected to a rotation drive component. The lifting component is fixedly equipped with a blade and an elastic pad; The blade and the elastic pad are symmetrically arranged about the rotation axis of the lifting member, and the lifting member can rotate so that the blade faces the upper side of the worktable, or the elastic pad faces the upper side of the worktable.

2. The adjustable cutting mechanism as described in claim 1, characterized in that, The linear drive component includes: A transmission screw is rotatably mounted on the outside of the worktable, its axial direction being parallel to the sliding direction of the positioning frame, and the transmission screw is drively connected to a first rotary motor; and The transmission nut is fixedly connected to the positioning frame and threadedly connected to the transmission screw.

3. The adjustable cutting mechanism as described in claim 2, characterized in that, The positioning frame has a through hole that extends along the axial direction of the transmission screw, and the positioning frame has a mounting groove that is coaxially connected to the through hole on one side facing the axial direction of the through hole. The transmission nut is fixedly embedded in the mounting groove, and the transmission screw passes through the through hole.

4. The adjustable cutting mechanism as described in claim 1, characterized in that, The positioning frame has two guide holes, which are coaxially arranged and extend vertically; the lifting component also includes: Two connecting rods are coaxially arranged and fixedly installed on both sides of the lifting component facing the two guide holes, and the two connecting rods are respectively inserted into the two guide holes and extend out.

5. The adjustable cutting mechanism as described in claim 4, characterized in that, The rotation drive component includes: A sliding table is slidably connected to the outer side of the positioning frame in the vertical direction; and The second rotating motor is fixedly mounted on the sliding platform, and its power output end is coaxially connected to the connecting rod.

6. The adjustable cutting mechanism as described in claim 4, characterized in that, The lifting drive component includes: A linear cylinder is fixedly mounted on the outer side of the positioning frame, located below the extended portion of the connecting rod, with its power output end extending upwards; and A connecting sleeve is fixedly connected to the power output end of the linear cylinder on its outer circumference, and the connecting sleeve is fitted onto the extended part of the connecting rod.

7. The adjustable cutting mechanism as described in claim 1, characterized in that, A guide rod extending along the moving direction of the positioning frame is fixedly provided on the outer side of the workbench, and the positioning frame is slidably connected to the guide rod.

8. The adjustable cutting mechanism as described in claim 1, characterized in that, An elastic ring is embedded in the vent hole, and the inner diameter of the elastic ring gradually decreases from bottom to top.

9. The adjustable cutting mechanism as described in claim 1, characterized in that, The workbench includes: A base for fixing to a horizontal surface, with an L-shaped snap-fit ​​connector hinged thereto; and A support plate is disposed on the upper side of the base, and its lower side abuts against the upper side of the base; the support plate is provided with a groove suitable for the snap-fit ​​member to be inserted, so as to restrict the movement of the support plate relative to the base; The inner cavity is formed on the base and has an upward-facing open structure; the support plate is made of elastic material, the exhaust holes are formed on the support plate, and each exhaust hole communicates with the open portion of the inner cavity.

10. A paper slitting machine, characterized in that, Includes the adjustable cutting mechanism according to any one of claims 1-9.

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