An online slitting device for paper tubes after winding.

Abstract

This utility model discloses an online slitting device for paper tubes after winding, including a base and a PLC controller. The upper end of the base is equipped with a cutting blade, and a fixing mechanism is also included. The fixing mechanism includes clamping plates, a drive rod, a connecting rod, and a drive plate. The connecting rod is rotatably connected to the middle of the bottom wall of the base. A drive plate is provided on the upper side of the outer arc surface of the connecting rod. Drive grooves are respectively provided on the left and right sides of the upper end of the drive plate. A drive rod is provided inside the base, and the lower side of the drive rod is located inside vertically adjacent drive grooves. Clamping plates are provided on the front and rear sides of the upper end of the base. This utility model solves the problem of inaccurate clamping plate movement caused by reduced lead screw precision, ensuring the fixing effect of the paper tube winding and further improving the slitting quality of the paper tube winding.

Description

Technical Field

[0001] This utility model relates to the field of paper tube production technology, specifically to an online slitting device for paper tubes after winding. Background Technology

[0002] Paper tube slitting equipment is an automated device used to slit rolled paper tubes. This equipment is widely used in industries such as papermaking, packaging, and printing. It can efficiently cut paper tubes into the required lengths for subsequent packaging or use, thereby improving production efficiency and product quality.

[0003] In the prior art, patent publication number CN 221134276 U discloses a pipe cutting device. Although the device can adjust the position of the second roller through a lead screw to fix the pipe, the lead screw is exposed to the environment for a long time and is prone to accumulating dust, debris and other foreign objects. These foreign objects may enter the interior of the lead screw, causing the lead screw to move unevenly and increase wear. The wear of the lead screw will reduce its accuracy and service life, which will lead to inaccurate movement of the second roller and ultimately affect the fixing effect on the pipe. Utility Model Content

[0004] The technical problem this invention aims to solve is to overcome existing defects and provide an online slitting device for paper tubes after winding. Through the coordinated arrangement of a drive rod and a drive plate, the position of the clamping plate can be adjusted, and finally, the clamping plate is used to install and fix the paper tube winding. This replaces the traditional method of moving the clamping plate via a lead screw, solving the problem of inaccurate clamping plate movement caused by reduced lead screw precision. This ensures the fixing effect of the paper tube winding and further improves the slitting quality of the paper tube winding, effectively solving the problems in the background technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an online slitting device for paper tubes after winding, including a base and a PLC controller, the upper end of the base is provided with a cutting blade, and a fixing mechanism is also included; The fixing mechanism includes a clamping plate, a drive rod, a connecting rod, and a drive plate. The connecting rod is rotatably connected to the middle of the bottom wall of the base. A drive plate is provided on the upper side of the outer arc surface of the connecting rod. Drive slots are provided on the left and right sides of the upper end of the drive plate. A drive rod is provided inside the base. The lower side of the drive rod is located inside the vertically adjacent drive slots. Clamping plates are provided on the front and rear sides of the upper end of the base.

[0006] Furthermore, the fixing mechanism also includes mounting rods, adjusting plates, and fixing plates. The mounting rods are located on the upper side inside the base. The two mounting rods are slidably connected to the sliding holes on the left and right sides of the rear end of the adjusting plate. A drive rod is provided on the left side of the lower end of the rear adjusting plate and the right side of the lower end of the front adjusting plate. Fixing plates are provided on the left and right sides of the upper end of the two adjusting plates. Guide grooves are provided on the left and right sides of the top wall of the base. The fixing plates are respectively connected to the interior of the vertically adjacent guide grooves. Clamping plates are fixedly connected to the upper sides of the inner ends of the two longitudinally adjacent fixing plates.

[0007] Furthermore, a drive motor is provided on the lower side of the rear wall of the base, a worm gear is provided at the front end of the output shaft of the drive motor, and a worm wheel is provided on the lower side of the outer arc surface of the connecting rod. The worm gear and the worm wheel are meshed and connected. A protective cover is provided inside the base. The connecting rod is rotatably connected to the mounting groove provided on the front side of the top wall of the protective cover. Both the worm gear and the worm wheel are located inside the protective cover. The input end of the drive motor is electrically connected to the output end of the PLC controller, and can drive the drive plate to rotate through the connecting rod.

[0008] Furthermore, a mounting bracket is provided on the rear side of the upper end of the base, and a connecting seat is slidably connected to the upper side inside the mounting bracket. A servo motor is provided on the front side of the left end of the connecting seat, and a cutting blade is provided on the right end of the output shaft of the servo motor. The input end of the servo motor is electrically connected to the output end of the PLC controller, which can drive the cutting blade to rotate.

[0009] Furthermore, an electric push rod is provided on the rear side of the upper end of the base. The upper end of the telescopic end of the electric push rod is fixedly connected to the middle part of the lower end of the connecting seat. The input end of the electric push rod is electrically connected to the output end of the PLC controller, and can drive the cutting blade to move through the connecting seat.

[0010] Furthermore, a laser rangefinder is provided on the upper side of the rear wall of the base. The laser rangefinder corresponds to the front and rear positions of the rear adjustment plate. The laser rangefinder is bidirectionally electrically connected to the PLC controller, enabling the adjustment of the rear plate's position.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By using the drive rod and drive plate in combination, the position of the clamping plate can be adjusted, and finally the clamping plate is used to install and fix the paper tube roll. This replaces the traditional method of moving the clamping plate by driving it with a screw, which solves the problem of inaccurate clamping plate movement caused by reduced screw precision, ensures the fixing effect of the paper tube roll, and further improves the slitting quality of the paper tube roll. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a schematic diagram of the left side structure of this utility model; Figure 3 This is a schematic diagram of the upper sectional structure of this utility model; Figure 4 This is a schematic diagram of the fixing mechanism of this utility model; Figure 5 This is a schematic diagram of the internal structure of the protective cover of this utility model.

[0013] In the diagram: 1. Base, 2. PLC controller, 3. Mounting bracket, 4. Connecting seat, 5. Servo motor, 6. Cutting blade, 7. Electric push rod, 8. Laser rangefinder, 9. Fixing mechanism, 91. Mounting rod, 92. Adjusting plate, 93. Fixing plate, 94. Clamping plate, 95. Drive rod, 96. Connecting rod, 97. Drive board, 10. Drive motor, 11. Worm gear, 12. Worm wheel, 13. Protective cover. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-5 This embodiment provides a technical solution: an online slitting device for paper tubes after winding, including a base 1 and a PLC controller 2, with a cutting blade 6 provided at the upper end of the base 1.

[0016] The system also includes a fixing mechanism 9; the fixing mechanism 9 includes a clamping plate 94, a drive rod 95, a connecting rod 96, and a drive plate 97. The connecting rod 96 is rotatably connected to the middle of the bottom wall of the base 1. The drive plate 97 is provided on the upper side of the outer arc surface of the connecting rod 96. Drive slots are provided on the left and right sides of the upper end of the drive plate 97. The drive rod 95 is provided inside the base 1. The lower side of the drive rod 95 is located inside the vertically adjacent drive slots. The clamping plates 94 are provided on the front and rear sides of the upper end of the base 1. The fixing mechanism 9 also includes a mounting rod 91, an adjusting plate 92, and a fixing plate 93. The mounting rod 91 is located on the upper side inside the base 1. The two mounting rods 91 are slidably connected to the sliding holes on the left and right sides of the rear end of the adjusting plate 92. The left side of the lower end of the rear adjusting plate 92 and the right side of the lower end of the front adjusting plate 92 are both provided with driving rods 95. The left and right sides of the upper end of the two adjusting plates 92 are respectively provided with fixing plates 93. The left and right sides of the top wall of the base 1 are respectively provided with guide grooves. The fixing plates 93 are respectively connected to the interior of the vertically adjacent guide grooves. The upper sides of the inner ends of the two vertically adjacent fixing plates 93 are fixedly connected with clamping plates 94.

[0017] The base 1 has a drive motor 10 located on the lower side of its rear wall. A worm gear 11 is located at the front end of the output shaft of the drive motor 10. A worm wheel 12 is located on the lower side of the outer arc surface of the connecting rod 96. The worm gear 11 and worm wheel 12 are meshed together. A protective cover 13 is located inside the base 1. The connecting rod 96 is rotatably connected to the mounting groove located on the front side of the top wall of the protective cover 13. Both the worm gear 11 and worm wheel 12 are located inside the protective cover 13. The input end of the drive motor 10 is electrically connected to the output end of the PLC controller 2. The drive motor 10 starts running under the control of the PLC controller 2. The output shaft of the drive motor 10 drives the worm gear 11 to rotate. During rotation, the worm gear 11 meshes with the worm wheel 12, which in turn rotates through the connecting rod 96 to drive the drive plate 97 to rotate.

[0018] The base 1 has a mounting bracket 3 on the rear side of the upper end. The mounting bracket 3 has a connecting seat 4 that is slidably connected to the upper side of the interior. The connecting seat 4 has a servo motor 5 on the front side of the left end. The servo motor 5 has a cutting blade 6 on the right end of the output shaft. The input end of the servo motor 5 is electrically connected to the output end of the PLC controller 2. The servo motor 5 starts to run under the control of the PLC controller 2, and the output shaft of the servo motor 5 drives the cutting blade 6 to rotate.

[0019] Wherein: An electric push rod 7 is provided on the rear side of the upper end of the base 1. The upper end of the telescopic end of the electric push rod 7 is fixedly connected to the middle part of the lower end of the connecting seat 4. The input end of the electric push rod 7 is electrically connected to the output end of the PLC controller 2. During the rotation of the cutting blade 6, the electric push rod 7 starts to run through the control of the PLC controller 2. The telescopic end of the electric push rod 7 shortens, thereby driving the cutting blade 6 to move downward through the connecting seat 4. Finally, the outer arc surface of the cutting blade 6 contacts the outer arc surface of the paper tube roll until the cutting blade 6 passes through the paper tube roll, thereby realizing the cutting of the paper tube roll.

[0020] A laser rangefinder 8 is installed on the upper side of the rear wall of the base 1. The laser rangefinder 8 corresponds to the rear adjustment plate 92. The laser rangefinder 8 is bidirectionally electrically connected to the PLC controller 2. During use, the built-in light source of the laser rangefinder 8 emits a laser beam to the rear end of the rear adjustment plate 92. The laser beam is reflected after contacting the rear end of the rear adjustment plate 92. The laser rangefinder 8 then receives the reflected light. The laser rangefinder 8 calculates the distance between the front end of the laser rangefinder 8 and the rear end of the rear adjustment plate 92 by measuring the round-trip time (TOF) or phase difference of the laser beam.

[0021] The working principle of this utility model is as follows: Before use, the paper tube roll to be cut is placed between two longitudinally adjacent clamping plates 94 using an external gripping device (the diameter of the paper tube roll is smaller than the radius of the cutting blade 6). Then, the distance between the inner arc surface of the clamping plate 94 and the outer arc surface of the paper tube roll is measured (e.g., denoted as a). Next, the distance between the front end of the laser rangefinder 8 and the rear end of the rear adjustment plate 92 is measured. During use, the built-in light source of the laser rangefinder 8 emits a laser beam to the rear end of the rear adjustment plate 92. The laser beam is reflected after contacting the rear end of the rear adjustment plate 92, and then the laser rangefinder 8 receives the reflected light. The laser rangefinder 8 measures the round-trip time of the laser beam (T). The distance between the front end of the laser rangefinder 8 and the rear end of the rear adjustment plate 92 is calculated by using the phase difference (e.g., b). Subsequently, the laser rangefinder 7 transmits the detected information to the PLC controller 2 through its built-in data transmission module. The PLC controller 2 receives the detected data through its built-in serial communication port, and then adds the distance between the inner arc surface of the clamping plate 94 and the outer arc surface of the paper tube to the distance between the front end of the laser rangefinder 8 and the rear end of the rear adjustment plate 92. This gives the distance between the front end of the laser rangefinder 8 and the rear end of the rear adjustment plate 92 when the clamping plate 94 contacts the outer arc surface of the paper tube (e.g., c, c=a+b). Afterwards, under the control of PLC controller 2, drive motor 10 starts to run. The output shaft of drive motor 10 drives worm gear 11 to rotate. During the rotation of worm gear 11, it drives worm wheel 12 to rotate through meshing connection. During the rotation of worm wheel 12, it drives drive plate 97 to rotate through connecting rod 96. At this time, drive rod 95 will slide inside drive groove and rotate relative to drive groove, so that drive plate 97 drives adjustment plate 92 to move through drive rod 95. During the movement of adjustment plate 92, clamping plate 94 will move through fixed plate 93. At this time, the distance between two longitudinally adjacent clamping plates 94 will gradually decrease. When the distance between the front end of laser rangefinder 8 and the rear end of rear adjustment plate 92 is equal to c, it means that the inner arc surface of clamping plate 94 is in contact with the outer arc surface of paper tube roll, thereby realizing the installation and fixation of paper tube roll. Then the external gripping device releases paper tube roll. Subsequently, under the control of PLC controller 2, servo motor 5 starts to run. The output shaft of servo motor 5 drives the cutting blade 6 to rotate. During the rotation of cutting blade 6, under the control of PLC controller 2, electric push rod 7 starts to run. The telescopic end of electric push rod 7 shortens, so that electric push rod 7 drives cutting blade 6 to move downward through connecting seat 4. Finally, the outer arc surface of cutting blade 6 contacts the outer arc surface of paper tube roll until cutting blade 6 passes through paper tube roll, thereby realizing the cutting of paper tube roll.

[0022] It is worth noting that the PLC controller 2 disclosed in the above embodiments can be AT89C51, the servo motor 5 can be ECMA-C20604RS, the electric linear actuator 7 can be dytp2000-550 / 50-x, the temperature sensor 8 can be OHR-E700, and the drive motor 10 can be 5IK200A-AF. The PLC controller 2 controls the operation of the servo motor 5, the electric linear actuator 7, the temperature sensor 8, and the drive motor 10 using methods commonly used in the prior art.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An online slitting device for paper tubes after winding, comprising a base (1) and a PLC controller (2), wherein a cutting blade (6) is provided at the upper end of the base (1), characterized in that: It also includes fixed mechanisms (9); The fixing mechanism (9) includes a clamping plate (94), a driving rod (95), a connecting rod (96), and a driving plate (97). The connecting rod (96) is rotatably connected to the middle of the bottom wall of the base (1). The upper side of the outer arc surface of the connecting rod (96) is provided with a driving plate (97). The left and right sides of the upper end of the driving plate (97) are respectively provided with driving grooves. The base (1) is provided with a driving rod (95). The lower side of the driving rod (95) is located inside the vertically adjacent driving grooves. The front and rear sides of the upper end of the base (1) are respectively provided with clamping plates (94).

2. The online slitting device for paper tubes after winding according to claim 1, characterized in that: The fixing mechanism (9) also includes a mounting rod (91), an adjusting plate (92), and a fixing plate (93). The mounting rod (91) is located on the upper side inside the base (1). The two mounting rods (91) are slidably connected to the sliding holes on the left and right sides of the rear end of the adjusting plate (92). A driving rod (95) is provided on the left side of the lower end of the rear adjusting plate (92) and the right side of the lower end of the front adjusting plate (92). Fixing plates (93) are provided on the left and right sides of the upper end of the two adjusting plates (92). Guide grooves are provided on the left and right sides of the top wall of the base (1). The fixing plates (93) are connected to the interior of the vertically adjacent guide grooves. The upper sides of the inner ends of the two vertically adjacent fixing plates (93) are fixedly connected to clamps (94).

3. The online slitting device for paper tubes after winding according to claim 1, characterized in that: A drive motor (10) is provided on the lower side of the rear wall of the base (1). A worm (11) is provided at the front end of the output shaft of the drive motor (10). A worm wheel (12) is provided on the lower side of the outer arc surface of the connecting rod (96). The worm (11) and the worm wheel (12) are meshed and connected. A protective cover (13) is provided inside the base (1). The connecting rod (96) is rotatably connected to the mounting groove provided on the front side of the top wall of the protective cover (13). The worm (11) and the worm wheel (12) are both located inside the protective cover (13). The input end of the drive motor (10) is electrically connected to the output end of the PLC controller (2).

4. The online slitting device for paper tubes after winding according to claim 1, characterized in that: A mounting bracket (3) is provided on the rear side of the upper end of the base (1). A connecting seat (4) is slidably connected to the upper side inside the mounting bracket (3). A servo motor (5) is provided on the front side of the left end of the connecting seat (4). A cutting blade (6) is provided on the right end of the output shaft of the servo motor (5). The input end of the servo motor (5) is electrically connected to the output end of the PLC controller (2).

5. The online slitting device for paper tubes after winding according to claim 4, characterized in that: An electric push rod (7) is provided on the rear side of the upper end of the base (1). The upper end of the telescopic end of the electric push rod (7) is fixedly connected to the middle part of the lower end of the connecting seat (4). The input end of the electric push rod (7) is electrically connected to the output end of the PLC controller (2).

6. The online slitting device for paper tubes after winding according to claim 1, characterized in that: A laser rangefinder (8) is provided on the upper side of the rear wall of the base (1). The laser rangefinder (8) corresponds to the front and rear positions of the adjustment plate (92) on the rear side. The laser rangefinder (8) is bidirectionally electrically connected to the PLC controller (2).

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