A slitting device for papermaking

Abstract

The utility model discloses a papermaking is with slitting device relates to paper slitting device technical field, including mounting bracket, base, the left and right sides fixed mounting of mounting bracket has the fixed frame, and the inside of fixed frame is close to the position of top and set up slitting knife structure, and the position fixed mounting of the bottom middle part of mounting bracket is close to the front end and has the hydraulic telescopic rod, and the output fixed connection of hydraulic telescopic rod has the equal division equidistance sliding table, and the bottom of equal division equidistance sliding table is close to the position of left and right sides and all fixed mounting has the first slide rod, and the top of base is close to the position of left and right sides and all fixed mounting has the triangular seat, and all is provided with rebound device on two triangular seats, and one of two rebound devices includes connecting plate, swing lever, damper, spring, second slide rod group, moving block, check ring, connecting seat and first movable seat.

Description

Technical Field

[0001] This utility model relates to the technical field of paper slitting devices, specifically a paper slitting device. Background Technology

[0002] Paper slitting equipment is a specialized piece of equipment used on paper production lines to slit wide-width base paper into the required width specifications. It is one of the core machines in the post-processing stage.

[0003] Chinese utility model patent CN221165297U discloses an automatic positioning and slitting device for papermaking, relating to the field of paper slitting devices. To address the limitation of existing devices that cannot adjust the slitting width of paper during use, thus lacking practicality, this automatic positioning and slitting device for papermaking includes a frame. Conveying devices are installed on the inner walls of both sides of the frame. Mounting blocks are fixed to both sides of the upper surface of the frame, and a mounting frame is fixed between the mounting blocks. A scale is provided on the outer side of the mounting frame. A moving device is mounted on the mounting frame, and a slitting mechanism is fixed to the moving device. A connecting rod is mounted on the slitting mechanism, and a limit plate is fixed to the connecting rod. The limit plate is movably mounted on a winding mechanism. This automatic positioning and slitting device for papermaking achieves automatic and precise positioning, improving its practicality. By using a take-up roller and a finished product roller to process the finished paper and the slitting waste, it facilitates secondary utilization while preventing waste from polluting the working environment.

[0004] Traditional paper slitting devices suffer from wear and tear on their cutting blades after prolonged use, and current technologies often lack effective real-time repair methods. This typically requires machine shutdown and manual replacement or repair of the blades, increasing maintenance time and labor costs, causing production interruptions, and reducing efficiency. Therefore, a new paper slitting device is needed to address these issues. Utility Model Content

[0005] This invention provides a paper-cutting device to solve the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper-making slitting device, comprising a mounting frame and a base, wherein fixed frames are fixedly mounted on the left and right sides of the mounting frame, a slitting blade structure is provided inside the fixed frames near the top, a hydraulic telescopic rod is fixedly mounted at the bottom center of the mounting frame near the front end, and an equally spaced slide table is fixedly connected to the output end of the hydraulic telescopic rod. First slide rods are fixedly mounted on the bottom of the equally spaced slide table near the left and right sides, and triangular seats are fixedly mounted on the top of the base near the left and right sides. Each of the two devices is equipped with a rebound device. One of the rebound devices includes a connecting plate, a swing rod, a damper, a spring, a second slide bar assembly, a moving block, a check ring, a connecting seat, and a first movable seat. There are two connecting seats, two moving blocks, two swing rods, two dampers, and two check rings. The lower surfaces of the two swing rods are connected to the two first movable seats near the bottom via pins. The tops of the two moving blocks are fixedly connected to the bottoms of the two first movable seats. The mounting ends of the two dampers are fixedly connected to the adjacent ends of the two connecting seats.

[0007] Furthermore, the second slide bar assembly consists of two slide bars, with the interiors of the multiple anti-reverse rings engaging with the outer surfaces of the two slide bars near their respective sides, and the interiors of the multiple springs movably engaging with the outer surfaces of the two slide bars near their respective sides.

[0008] Furthermore, both sides of the two movable blocks are provided with sliding grooves, and the interior of the sliding grooves on the movable blocks are respectively movably connected to the outer surfaces of the two sliding rods in the second sliding rod group. The adjacent sides of the multiple springs are respectively fixedly connected to the opposite sides of the two movable blocks, and the opposite sides of the multiple springs are respectively fixedly connected to the adjacent sides of the multiple check rings.

[0009] Furthermore, the output ends of the two dampers are fixedly connected to the opposite sides of the two moving blocks near the middle position.

[0010] Furthermore, each of the two swing arms is provided with a second movable seat at the end away from the first movable seat. The top of the two second movable seats is fixedly connected to the bottom of the connecting plate near the sides. The bottom of the two connecting seats is fixedly connected to one side of the triangular seat. A whetstone is fixedly installed on one side of the connecting plate. The rebound devices on the two triangular seats have the same structure and are symmetrically positioned.

[0011] Furthermore, the equally spaced and equidistant slide table is mainly composed of components such as a motor, lead screw, slider, guide rail, and mounting base. The top of the slider is fixedly connected to the bottom of the base. The number of sliders and bases is the same as the number of paper cutters on the slitting blade structure, and the structures on the multiple bases are also the same. The multiple bases are located directly below the multiple paper cutters.

[0012] Furthermore, the bottoms of the two first sliding rods respectively penetrate the top of the mounting frame and extend out of the inner top wall of the mounting frame, and the output end of the hydraulic telescopic rod penetrates the inner top wall of the mounting frame and extends out of the top of the mounting frame. The connection between the output end of the hydraulic telescopic rod and the two first sliding rods and the mounting frame is a movable sleeve.

[0013] Furthermore, rollers are fixedly installed at the front and rear ends of the left and right sides of the fixed frame near the top, and a controller is fixedly installed at the top of the fixed frame.

[0014] Compared with the prior art, the present invention provides a paper-making slitting device, which has the following beneficial effects:

[0015] 1. This paper-making slitting device, through the installation of a spring-loaded mechanism, a sharpening stone, and a hydraulic telescopic rod, clamps the paper cutter blade during sharpening, reducing manual intervention and improving automation and efficiency. It buffers and adjusts the pressure between the sharpening stone and the paper cutter blade, ensuring smooth contact, guaranteeing stability during the sharpening process, and improving blade repair quality; it absorbs impact force, reducing wear on the sharpening stone, paper cutter blade, and connecting parts, preventing component damage, and extending service life. Repairing worn paper cutter blades during operation eliminates frequent machine stops, improving production efficiency and ensuring continuous slitting work. The repaired paper cutter blades have sharp edges, improving slitting accuracy and quality, avoiding problems such as rough edges on paper, and meeting papermaking process requirements. Precise control of the sharpening stone's up-and-down movement adjusts it to the optimal contact position with the paper cutter blade, ensuring the effectiveness of the repair process. The output end's extension and retraction are smooth and controllable, avoiding vibration and impact during sharpening stone movement, ensuring repair accuracy and operational stability. It facilitates easy control of the sharpening stone's movement, allows for flexible wear repair, and is simple to install and maintain, improving operability and maintainability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top and bottom structural diagram of the equally spaced and equally divided slide table of this utility model;

[0018] Figure 3 This is a structural diagram of the rebound device of this utility model.

[0019] In the diagram: 1. Mounting bracket; 2. Fixing bracket; 3. Slitting blade structure; 4. Roller; 5. Triangular seat; 6. Base; 7. Equally spaced slide table; 8. Springback device; 9. Sharpening stone; 10. Hydraulic telescopic rod; 11. First slide rod; 801. Connecting plate; 802. Swing rod; 803. Damper; 804. Spring; 805. Second slide rod assembly; 806. Moving block; 807. Anti-reverse ring; 808. Connecting seat; 809. First movable seat. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This utility model discloses a paper-making slitting device, including a mounting frame 1 and a base 6. Fixing frames 2 are fixedly installed on the left and right sides of the mounting frame 1. A slitting blade structure 3 is arranged inside the fixing frame 2 near the top. A hydraulic telescopic rod 10 is fixedly installed at the bottom center of the mounting frame 1 near the front end. The output end of the hydraulic telescopic rod 10 is fixedly connected to an equally spaced slide table 7. First slide rods 11 are fixedly installed on the bottom of the equally spaced slide table 7 near the left and right sides. Triangular seats 5 are fixedly installed on the top of the base 6 near the left and right sides. Each of the two triangular seats 5 is equipped with a spring-loaded device 8. One of the two spring-loaded devices 8 includes a connecting plate 801 and a swing arm. The system includes a moving rod 802, a damper 803, a spring 804, a second sliding rod assembly 805, a moving block 806, a check ring 807, a connecting seat 808, and a first movable seat 809. There are two connecting seats 808, two moving blocks 806, two swing rods 802, two dampers 803, and two first movable seats 809. There are multiple springs 804 and check rings 807. The lower surfaces of the two swing rods 802 are connected to the two first movable seats 809 near the bottom by pins. The tops of the two moving blocks 806 are fixedly connected to the bottoms of the two first movable seats 809. The mounting ends of the two dampers 803 are fixedly connected to the adjacent ends of the two connecting seats 808.

[0022] Specifically, the second slide bar group 805 consists of two slide bars, with multiple anti-reverse rings 807 engaging with the outer surfaces of the two slide bars near the sides, and multiple springs 804 movably engaging with the outer surfaces of the two slide bars near the sides.

[0023] Specifically, both sides of the two movable blocks 806 are provided with sliding grooves. The inside of the sliding grooves on the movable blocks 806 are movably connected to the outer surfaces of the two sliding rods in the second sliding rod group 805. The adjacent sides of the multiple springs 804 are fixedly connected to the opposite sides of the two movable blocks 806, and the opposite sides of the multiple springs 804 are fixedly connected to the adjacent sides of the multiple check rings 807.

[0024] Specifically, the output ends of the two dampers 803 are fixedly connected to the opposite sides of the two moving blocks 806 near the middle.

[0025] Specifically, each of the two swing arms 802 has a second movable seat at one end away from the first movable seat 809. The tops of the two second movable seats are fixedly connected to the bottom of the connecting plate 801 near the sides. The bottoms of the two connecting seats 808 are fixedly connected to one side of the triangular seat 5. A whetstone 9 is fixedly installed on one side of the connecting plate 801. The spring-loaded devices 8 on the two triangular seats 5 have the same structure and are symmetrically positioned.

[0026] Specifically, the equally spaced and equidistant slide table 7 is mainly composed of a motor, lead screw, slider, guide rail, mounting base and other components. The top of the slider is fixedly connected to the bottom of the base 6. The number of sliders and bases 6 is the same as the number of paper cutters on the slitting blade structure 3, and the structures on the multiple bases 6 are also the same. The multiple bases 6 are located directly below the multiple paper cutters.

[0027] Specifically, the bottoms of the two first sliding rods 11 pass through the top of the mounting frame 1 and extend out of the inner top wall of the mounting frame 1, and the output end of the hydraulic telescopic rod 10 passes through the inner top wall of the mounting frame 1 and extends out of the top of the mounting frame 1. The connection between the output end of the hydraulic telescopic rod 10 and the two first sliding rods 11 and the mounting frame 1 is a movable sleeve.

[0028] Specifically, rollers 4 are fixedly installed on the front and rear ends of the left and right sides of the fixed frame 2 near the top, and a controller is fixedly installed on the top of the fixed frame 2.

[0029] After prolonged use, the paper cutter on the slitting blade structure 3 can be driven by the hydraulic telescopic rod 10. The output end of the hydraulic telescopic rod 10 drives the mounting plate upwards, which in turn moves the first sliding rod 11. This causes the sharpening stones 9 located above the mounting plate to approach and press against the lower part of the paper cutter until they contact the two blades on either side. This allows the paper cutter to be worn and repaired by the sharpening stones 9 during operation. While the sharpening stones 9 are sharpening the blades, they are also subjected to pressure from the paper cutter, pushing them to move to the sides. The two sharpening stones 9 effectively push the connecting plate 801 to move to the sides. During this movement, the downward pressure of the connecting plate 801 pushes the swing rod 802. The end of the swing rod 802 away from the first movable seat 809 acts on the indirectly connected moving block 806. Since the moving block 806 and the second sliding rod group 805 are in a movable sleeve relationship, during the swing... Driven by lever 802, the two moving blocks 806 are pushed and move smoothly and stably in opposite directions along the second sliding rod group 805. As the moving blocks 806 move, the spring 804 gradually compresses, and at the same time, the output end of the damper 803 contracts, storing the necessary energy for the subsequent reset action. This continues until the blade of the paper cutter is pressed against the top of the whetstone 9, thus sharpening the paper cutter. After the blade of the paper cutter is pressed against the top of the whetstone 9 and the sharpening is completed, the output end of the hydraulic telescopic rod 10 begins to retract, driving the equally spaced sliding table 7 and the mounting plate to move downwards, and the paper cutter gradually moves away from the whetstone 9. At this time, the spring 804 in the rebound device 8 begins to extend under its own elasticity, pushing the moving block 806 to move in the opposite direction, and the output end of the damper 803 also gradually extends, driving the swing rod 802 to reset. The reset of the swing rod 802 further drives the connecting plate 801 and the whetstone 9 back to their initial state, waiting for the next sharpening operation.

[0030] In summary, this paper-making slitting device, through the inclusion of a springback device 8, a sharpening stone 9, and a hydraulic telescopic rod 10, clamps the paper cutter during sharpening with the sharpening stone 9, reducing manual intervention and improving automation and efficiency. It buffers and adjusts the pressure between the sharpening stone 9 and the paper cutter, ensuring smooth contact, guaranteeing the stability of the sharpening process, and improving the quality of blade repair; it absorbs impact force, reducing wear on the sharpening stone 9, paper cutter, and connecting parts, preventing component damage, and extending service life. Repairing worn paper cutters during operation eliminates the need for frequent machine stops, improving production efficiency and ensuring continuous slitting work. The repaired paper cutter has a sharp edge, improving slitting accuracy and quality, avoiding problems such as rough edges on paper, and meeting papermaking process requirements. Precise control of the up-and-down movement of the sharpening stone 9, adjusting it to the optimal contact position with the paper cutter, ensures the effectiveness of the repair process. The output end's extension and retraction are smooth and controllable, avoiding vibration and impact during the movement of the sharpening stone 9, ensuring repair accuracy and operational stability. It allows for easy control of the movement of the whetstone 9, flexible wear repair, and simple installation and maintenance, improving operability and maintainability.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper-making slitting device, comprising a mounting frame and a base, characterized in that: Fixed brackets are fixedly installed on the left and right sides of the mounting frame. A slitting blade structure is set inside the fixed bracket near the top. A hydraulic telescopic rod is fixedly installed at the bottom center of the mounting frame near the front end. The output end of the hydraulic telescopic rod is fixedly connected to an equally spaced slide table. A first slide rod is fixedly installed at the bottom of the equally spaced slide table near the left and right sides. A triangular seat is fixedly installed at the top of the base near the left and right sides. A spring-loaded device is set on each of the two triangular seats. One of the two spring-loaded devices includes a connecting plate, a swing rod, a damper, a spring, a second slide rod group, a moving block, a check ring, a connecting seat, and a first movable seat. There are two connecting seats, moving blocks, swing rods, dampers, and first movable seats. There are multiple springs and check rings. The lower surfaces of the two swing rods are connected to the two first movable seats near the bottom by pins. The tops of the two moving blocks are fixedly connected to the bottoms of the two first movable seats. The mounting ends of the two dampers are fixedly connected to the adjacent ends of the two connecting seats.

2. The paper-making slitting device according to claim 1, characterized in that: The second slide bar assembly consists of two slide bars. The interiors of the multiple anti-reverse rings are engaged with the outer surfaces of the two slide bars near the sides. The interiors of the multiple springs are movably engaged with the outer surfaces of the two slide bars near the sides.

3. The paper-making slitting device according to claim 1, characterized in that: Both sides of the two movable blocks are provided with sliding grooves. The inside of the sliding grooves on the movable blocks are movably connected to the outer surfaces of the two sliding rods in the second sliding rod group. The adjacent sides of the multiple springs are fixedly connected to the opposite sides of the two movable blocks, and the opposite sides of the multiple springs are fixedly connected to the adjacent sides of the multiple check rings.

4. The paper-making slitting device according to claim 1, characterized in that: The output ends of the two dampers are fixedly connected to the opposite sides of the two moving blocks near the middle.

5. The paper-making slitting device according to claim 1, characterized in that: Each of the two swing arms is provided with a second movable seat at one end away from the first movable seat. The top of the two second movable seats is fixedly connected to the bottom of the connecting plate near the sides. The bottom of the two connecting seats is fixedly connected to one side of the triangular seat. A whetstone is fixedly installed on one side of the connecting plate. The rebound devices on the two triangular seats have the same structure and are symmetrically positioned.

6. The paper-making slitting device according to claim 1, characterized in that: The equally spaced and equidistant slide table is mainly composed of a motor, lead screw, slider, guide rail, mounting base and other components. The top of the slider is fixedly connected to the bottom of the base. The number of sliders and bases is the same as the number of paper cutters on the slitting blade structure, and the structure on the multiple bases is also the same. The multiple bases are located directly below the multiple paper cutters.

7. The paper-making slitting device according to claim 1, characterized in that: The bottoms of the two first sliding rods pass through the top of the mounting frame and extend out of the inner top wall of the mounting frame. The output end of the hydraulic telescopic rod passes through the inner top wall of the mounting frame and extends out of the top of the mounting frame. The connection between the output end of the hydraulic telescopic rod and the two first sliding rods and the mounting frame is a movable sleeve.

8. The paper-making slitting device according to claim 1, characterized in that: Rollers are fixedly installed on the front and rear ends of both sides of the fixed frame near the top, and a controller is fixedly installed on the top of the fixed frame.

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