Roll changing device for roller library of rewinding machine

Abstract

The utility model discloses a roll changing device for a roller library of a rewinding machine, which can be widely applied to the technical field of papermaking equipment. The technical problems that in the prior art, an empty roll paper shaft needs to be lifted out and a new mother roll needs to be lifted in in a traditional roll changing mode, the process consumes long time, the lifting process is complex, and large safety risks exist are solved. The device comprises an empty roll paper shaft roll library module and a mother roll roll library module, the primary winding roller library module and the empty winding shaft roller library module are both connected with a power mechanism and a sensor, are controlled by a controller, and are mutually matched and cooperatively operated; the mother roll storage module comprises a group of first racks which are transversely arranged, a group of mother roll storage racks are arranged at the tops of the two opposite sides of a bottom supporting frame of each first rack, and first guide rails are mounted at the tops of the mother roll storage racks; a mother roll leading-in part is arranged at the front end of the mother roll storage rack, and a paper unwinding part is arranged at the rear end.

Description

Technical Field

[0001] The utility model relates to the technical field of papermaking equipment, and specifically relates to a rewinder roll library roll changing device. Background Technique

[0002] In the papermaking industry, as a key equipment, the improvement of the automation level of the rewinder is of great significance for improving production efficiency and reducing labor intensity.

[0003] However, with the increasing demand for large-diameter mother rolls in the market, when replacing large-diameter mother rolls on traditional winders, the roll-changing method is to lift out the empty roll paper shaft and lift the new large-diameter mother roll into the unwinding workstation. This method not only takes a long time, increases the production interruption time, but also has a large safety risk during the hoisting process. At the same time, the degree of automation is low, and it is difficult to meet the urgent needs of modern papermaking industry for efficient and safe production.

[0004] Therefore, there is an urgent need for a new type of roll-changing device to solve the above technical problems. Summary of the Invention

[0005] Aiming at the deficiencies and drawbacks existing in the prior art, the utility model provides a rewinder automatic roll library roll changing device with a clever structural design and an automatic design. Through the coordinated work of the empty roll paper shaft roll library module and the mother roll roll library module, and the close cooperation between components such as the robotic arm and the slide rail, the automatic replacement of the mother roll and the empty roll paper shaft is realized. It runs stably and reliably, and can meet the requirements of modern papermaking industry for efficient, safe and automatic production.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: It includes an empty roll paper shaft roll library module and a mother roll roll library module; the mother roll roll library module is installed on the first side of the empty roll paper shaft roll library module, and both of them are connected with a power mechanism, a sensor and are controlled by a controller, and cooperate with each other to run coordinately;

[0007] The mother roll roll library module includes a group of first racks arranged horizontally. On the top of the bottom support frames on both opposite sides of the first rack, there is a group of mother roll storage racks. On the top of the mother roll storage racks, a first guide rail is installed; at the front end of the mother roll storage rack, there is a mother roll introduction part, and at the rear end, there is a paper unwinding part;

[0008] The paper unwinding part includes a group of locking arms. On the lower side of the first guide rail and on both sides of the mother roll storage rack, there are symmetrically arranged multiple groups of auxiliary arms and docking card arms matching the locking arms;

[0009] The empty roll paper shaft roll library module includes a group of second racks arranged horizontally. On the top of the bottom support frames on both opposite sides of the second rack, there is a group of empty roll shaft storage racks. On the top of the empty roll shaft storage racks, a second guide rail is installed;

[0010] On one side close to the paper discharge section, a set of lift roller arms that can be lifted simultaneously is symmetrically arranged on the lower side of the empty roll shaft storage rack.

[0011] Preferably, one end of the roll shaft storage rack is the upper roll end, and the other end is the roll storage end;

[0012] At the lower side position of the upper roll end, the bottom of the empty roll shaft storage rack is rotatably connected to a synchronous shaft through a bearing, and lift roller arms are fixedly connected to both ends of the synchronous shaft.

[0013] Preferably, the lift roller arm includes a first lift roller arm, a second lift roller arm, and a third telescopic cylinder. The first lift roller arm and the second lift roller arm are hinged to each other at the head and tail, and a limit block is provided at the hinge.

[0014] Below the synchronous shaft, the bottom inner side of the vertical long support frame of the second rack is connected to a third telescopic cylinder, and the telescopic rod of the third telescopic cylinder is connected to the first lift roller arm;

[0015] At one end of the second lift roller arm, far from the first lift roller arm, an arc-shaped hook roller part matching the roll shaft is provided.

[0016] Preferably, at the tail of the roll storage end, a convex blocking part is obliquely arranged along the extension direction of the second guide rail;

[0017] On the outside of the roll storage end, a set of buffer arms is symmetrically arranged on the empty roll shaft storage rack; below the buffer arms, a fourth telescopic cylinder is installed on the left side wall of the vertical short support frame of the second rack;

[0018] The middle part of the buffer arm is rotatably connected to the upper side of the empty roll shaft storage rack. One end of it is connected to the telescopic rod of the fourth telescopic cylinder 701, and the other end is installed outside the convex blocking part through a limit block.

[0019] Preferably, a set of rotatable detection switches is symmetrically arranged on the outside of the upper roll end; an elastic check rod is provided between the detection switch and the buffer arm, and the elastic check rod extends towards the convex blocking part.

[0020] Preferably, on both sides of the mother roll storage rack 1 below the first guide rail, a plurality of groups of symmetrically arranged auxiliary arms are provided;

[0021] The auxiliary arm includes a first card slot member and a first telescopic cylinder. The first card slot member is rotatably connected to the mother roll storage rack. On the left side position of the first card slot member, the first telescopic cylinders are symmetrically arranged on the mother roll storage rack, and the telescopic rods of the first telescopic cylinders are connected to the first card slot member.

[0022] Preferably, the mother roll introduction part is an upwardly extending inclined structure; the paper discharge section further includes a set of symmetrically arranged support bases. The locking arm is installed above the support bases, and a docking card arm matching it is provided on the left side of the locking arm.

[0023] Preferably, the docking clamping arm includes a second clamping groove member and a second telescopic cylinder. The second clamping groove member is rotatably connected to the mother roll storage rack. Below the second clamping groove member and at the bottom of the mother roll storage rack, there is a second telescopic cylinder, and the telescopic rod of the second telescopic cylinder is connected to the docking clamping arm.

[0024] Preferably, the first clamping groove member and the second clamping groove member are provided with arc-shaped clamping grooves matching the roller shaft.

[0025] The utility model provides a roll changing device for a rewinder roller library, which has the following beneficial effects:

[0026] The roll changing device for the rewinder roller library of the utility model has a clever structural design. Through the coordinated work of the empty roll paper shaft roller library module and the mother roll roller library module, and the close cooperation among components such as the robotic arm, the telescopic cylinder, and the slide rail, the automatic replacement of the mother roll and the empty roll paper shaft is realized, reducing the time required for roll changing, significantly reducing the interruption time of the production line, thereby improving the overall production efficiency, reducing the safety risk, reducing the labor intensity, and enhancing the automation level of the production line. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the utility model;

[0028] Figure 2 is Figure 1 the installation structural schematic diagram of the empty roll paper shaft roller library module and the paper unwinding part in a three-dimensional view;

[0029] Figure 3 is Figure 1 the structural schematic diagram of the empty roll paper shaft roller library module in the front view;

[0030] Figure 4 is Figure 1 the structural schematic diagram of the mother roll roller library module in the front view.

[0031] In the figure: 1. Mother roll storage rack; 101. Mother roll introduction part; 102. Paper unwinding part; 1021. Locking arm; 2. Auxiliary arm; 201. First clamping groove member; 202. First telescopic cylinder; 3. First guide rail; 4. Docking clamping arm; 401. Second clamping groove; 402. Second telescopic cylinder; 5. Empty roll roller shaft storage rack; 501. Upper roller end; 502. Storage roller end; 6. Second guide rail; 7. Buffer arm; 701. Fourth telescopic cylinder; 8. Elastic check rod; 9. Detection switch; 10. Roll lifting arm; 1011. First roll lifting arm; 1012. Second roll lifting arm; 1013. Third telescopic cylinder; 11. Synchronous shaft. Detailed Embodiments

[0032] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0033] In the present invention, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] The present invention provides a technical solution:

[0035] First, as Figures 1-4 shown, the rewinder roll library roll changing device provided by the present invention installs the mother roll library module at the head side of the empty roll paper shaft roll library module. Both of them are connected with a power mechanism, a sensor and are controlled by a controller, and cooperate with each other to run in coordination. The power mechanism can specifically be an air pump or a hydraulic pump, which is used to drive the telescopic cylinder to cooperate with specific components to execute and complete various actions; the mother roll library module includes a group of first racks arranged horizontally. At the top of the bottom support frames on both opposite sides of the first rack, there is a group of mother roll storage racks 1. At the top of the mother roll storage rack 1, a first guide rail 3 is installed; at the front end of the mother roll storage rack 1, there is a mother roll introduction part 101, and at the rear end, there is a paper withdrawal part 102; the paper withdrawal part 102 includes a group of locking arms 1021. On the lower side of the first guide rail 3 and on both sides of the mother roll storage rack, there are symmetrically arranged multiple groups of auxiliary arms 2 and docking card arms 4 that match the locking arms 1021; the empty roll paper shaft roll library module includes a group of second racks arranged horizontally. At the top of the bottom support frames on both opposite sides of the second rack, there is a group of empty roll shaft storage racks 5. At the top of the empty roll shaft storage rack 5, a second guide rail 6 is installed; on one side close to the paper withdrawal part 102 and symmetrically under the empty roll shaft storage rack 5, there is a group of lift arms 10 that can be lifted and lowered simultaneously.

[0036] The above structural design is ingenious. Through the coordinated work of the empty roll paper shaft roll library module and the mother roll library module, and the close cooperation between components such as the robotic arm and the guide rail, the automatic replacement of the mother roll and the empty roll paper shaft is realized, reducing the time required for roll changing, significantly reducing the interruption time of the production line, thereby improving the overall production efficiency, reducing the safety risk, reducing the labor intensity, and enhancing the automation level of the production line.

[0037] Secondly, one end of the empty reel shaft storage rack 5 is the upper reel end 501, and the other end is the reel storage end 502; at the lower side position of the upper reel end 501, the bottom of the empty reel shaft storage rack 5 is rotatably connected to a synchronous shaft 11 through a bearing, and both ends of the synchronous shaft 11 are fixedly connected with reel lifting arms 10. The reel lifting arm 10 includes a first reel lifting arm 1011, a second reel lifting arm 1012 and a third telescopic cylinder 1013. The first reel lifting arm 1011 and the second reel lifting arm 1012 are hinged end to end, and a limiting block is provided at the hinge. Below the synchronous shaft 11, the bottom inner side of the vertical long support frame of the second frame is connected with a third telescopic cylinder 1013, and the telescopic rod of the third telescopic cylinder 1013 is connected with the first reel lifting arm 1011, further defining the installation positions of the third telescopic cylinder and the reel lifting arm 10. At one end of the second reel lifting arm 1012, away from the first reel lifting arm 1011, there is an arc-shaped hook reel part matching the reel shaft.

[0038] In the above structure, through the ingenious design of the reel lifting arm 10, the automatic replacement of the master reel and the empty reel paper shaft is realized. In this process, under the action of the third telescopic cylinder 1013, the reel lifting arm 10 realizes the lifting function together with the rotation of the synchronous shaft, and can accurately grasp and place the reel shaft, reducing manual operation and improving the reel changing efficiency. At the same time, the design of the reel lifting arm 10 takes into account the need for precise control. The first reel lifting arm 1011 and the second reel lifting arm 1012 are hinged end to end and provided with a limiting block, ensuring the stability and accuracy of the reel lifting arm when grasping and placing the reel shaft. At the same time, the third telescopic cylinder 1013 is connected to the power mechanism and the sensor, and through the precise control of the controller, the reel lifting arm can be lifted and lowered flexibly to meet the reel changing requirements. The design of the arc-shaped hook reel part on the reel lifting arm 10 enables it to adapt to reel shafts of different diameters and specifications, improving the versatility and adaptability of the device.

[0039] At the same time, at the tail of the reel storage end 502, there is an obliquely arranged convex blocking part along the extending direction of the second guide rail 6; outside the reel storage end 502, a group of buffer arms 7 are symmetrically arranged on the empty reel shaft storage rack 5; below the buffer arms 7, on the left side wall of the vertical short support frame of the second frame, a fourth telescopic cylinder 701 is installed; the middle part of the buffer arm 7 is rotatably connected to the upper side of the empty reel shaft storage rack 5, one end of which is connected to the telescopic rod of the fourth telescopic cylinder 701, and the other end is installed outside the convex blocking part through a limiting block.

[0040] In the above structure, the buffer arm 7 is designed mainly to provide additional support and stability when the empty paper roll shaft slides into the storage roller end 502. When the empty paper roll shaft slides to the storage roller end 502, the buffer arm can slow down the impact speed of the empty paper roll shaft to prevent damage or instability caused by sudden collision. The fourth telescopic cylinder 701 is connected to the power mechanism and the sensor. Through the precise control of the controller, the fourth telescopic cylinder 701 drives the buffer arm 10 to rise or fall, thereby realizing precise control and positioning of the empty paper roll shaft. The articulated installation of the buffer arm 10 can be flexibly adjusted according to the movement trajectory of the empty paper roll shaft.

[0041] A group of rotatable detection switches 9 are symmetrically arranged on the outer side of the upper roller end 501; an elastic check rod 8 is arranged between the detection switch 9 and the buffer arm 7, and the elastic check rod 8 extends toward the raised stop portion. In this structure, when the empty paper roll shaft is lifted to the upper roller end 501 by the roller lifting arm 10, the empty paper roll shaft will slide toward the storage roller end 502 along the second guide rail 6 due to the upward rotation of the roller lifting arm 10 and the upper roller end 501. After passing the detection switch 9, the lever of the detection switch 9 rotates accordingly, and the empty paper roll shaft slides toward the storage roller end 502, and then slides to the storage roller end after passing the elastic check rod 8. At this time, the elastic check rod 8 plays a supporting and limiting role, ensuring that the empty paper roll shaft is stored at the storage roller end, thereby ensuring the safety of the equipment and the stability of operation.

[0042] A plurality of groups of symmetrically arranged auxiliary arms 2 are provided on the lower side of the first guide rail 3 and on both sides of the mother winding roller frame 1; the auxiliary arms 2 include a first slot member 201 and a first telescopic cylinder 202, the first slot member 201 is rotatably connected to the mother winding roller frame 1, and a first telescopic cylinder 202 is symmetrically provided on the mother winding roller frame 1 on the left side of the first slot member 201, the telescopic rod of the first telescopic cylinder 202 is connected to the first slot member 201, and the first telescopic cylinder 202 is connected to a power mechanism and a sensor.

[0043] In this structure, the auxiliary arm 2 can accurately control and stabilize the position of the mother roll on the mother roll storage roller frame 3 through the cooperation of the first slot part 201 and the first telescopic cylinder 202, effectively preventing the mother roll from colliding during transportation or roll changing. At the same time, when the mother roll of the paper unwinding part 102 is unwound and is lifted to the empty roll shaft storage frame by the roller lifting arm 10, the first slot part 201 of the auxiliary arm 2 rotates to push the mother roll to slide toward the docking arm 4, which is crucial for the subsequent automatic introduction, transportation and roll changing of the mother roll, ensuring the stability and accuracy of the entire process. At the same time, the first telescopic cylinder 202 is connected to the power mechanism and the sensor, which can monitor the status of the mother roll in real time, such as position, whether it is in place, etc., and provide real-time feedback for the control system.

[0044] In addition, the mother roll introduction part 101 is an oblique structure extending upward, which is convenient for the mother roll to slide into the mother roll storage roller frame along the oblique structure; the paper withdrawal part 102 also includes a group of symmetrically arranged support bases, and the locking arm 1021 is installed above the support base. The left side of the locking arm 1021 is provided with a docking clamp arm 4 that matches it. The docking clamp arm 4 includes a second clamping slot part 401 and a second telescopic cylinder 402. The second telescopic cylinder 402 is connected to the power mechanism and the sensor. The second clamping slot part 401 is rotatably connected to the mother roll storage roller frame 1. The second telescopic cylinder 402 is provided below the second clamping slot part 401 and at the bottom of the mother roll storage roller frame 1. The telescopic rod of the second telescopic cylinder 402 is connected to the docking clamp arm 4. The first clamping slot part 201 and the second clamping slot part 401 are provided with arc-shaped clamping slots that match the roller shaft. In this structure, through the cooperation of the locking arm 1021 and the docking arm 4, the second slot member 401 is driven to rotate by the second telescopic cylinder 402, and the mother roll is accurately docked and fixed on the slot of the locking arm 1021 to prevent movement or falling during the paper retracting process.

[0045] Working principle:

[0046] First, the working process of the empty paper roll shaft roll library module is as follows: the paper unwinding unit 102 starts to unwind the paper, and an empty paper roll shaft is formed after the unwinding is completed. At this time, the third telescopic cylinder 1013 is started, pushing the first roller lifting arm 1011 and the second roller lifting arm 1012 to work together, and firmly hooking the empty paper roll shaft through the arc hook roller unit. When the empty paper roll shaft is lifted to the upper roller end 501 by the roller lifting arm 10, since the roller lifting arm 10 forms an inclined angle with the upper roller end 501 when rotating upward, the empty paper roll shaft will slide along the second guide rail 6 to the storage roller end 502. After passing through the detection switch 9, the lever on the detection switch 9 rotates accordingly, and the empty paper roll shaft slides to the storage roller end 502, and then slides to the storage roller end after passing through the elastic check rod 8. At this time, the elastic check rod 8 plays a supporting and limiting role to ensure that the empty paper roll shaft is stored at the storage roller end, thereby ensuring the safety of the equipment and the stability of operation.

[0047] Secondly, the working process of the mother roll storage module is as follows: the mother roll is introduced by the introduction part 101, and slides onto the mother roll storage roll frame 1 through the first guide rail 3. When it slides to the position of the auxiliary arm 2, the auxiliary arm 2 can limit the mother roll from continuing to slide forward and stabilize the position of the mother roll on the mother roll storage roll frame 1, effectively preventing the mother roll from colliding during transportation or roll changing. At the same time, when the mother roll of the paper unwinding part 102 is unwound and is lifted to the empty roll shaft storage frame 5 by the roller lifting arm 10, the first slot part 201 of the auxiliary arm 2 rotates to push the mother roll to slide toward the docking arm 4. At this time, the locking arm 1021 is ready, and the second telescopic cylinder 402 drives the second slot part 401 to rotate, accurately docking and fixing the mother roll on the slot of the locking arm 1021, and firmly locking the mother roll.

[0048] In summary, the automatic roll library roll change device of the present utility model rewinder not only realizes the automatic replacement of the master roll and the empty roll paper shaft through ingenious structural design and precise cooperation of various components, but also significantly improves the overall efficiency and safety of the production line. Its modular design is convenient for maintenance, reduces manual intervention, and lowers the labor intensity, bringing an efficient and intelligent production solution to the paper product processing industry.

[0049] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent replacements or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A reel changing device for a rewinding machine roll library, characterized in that: It includes an empty paper roll shaft storage module and a mother roll storage module; the mother roll storage module is installed at the front side of the empty paper roll shaft storage module, both of which are connected with a power mechanism and a sensor and are controlled by a controller, and operate in coordination with each other; The mother roll storage module comprises a group of first frames arranged transversely, a group of mother roll storage roll frames (1) are arranged on the tops of two opposite sides of the bottom support frame of the first frame, and a first guide rail (3) is installed on the top of the mother roll storage roll frame (1); a mother roll introduction part (101) is arranged at the front end of the mother roll storage roll frame (1), and a paper unloading part (102) is arranged at the rear end thereof; The paper retracting portion (102) comprises a group of locking arms (1021) located at the lower side of the first guide rail (3), and a plurality of groups of auxiliary arms (2) are symmetrically provided on both sides of the mother roll storage roller frame, as well as docking clamping arms (4) matching the locking arms (1021); The empty paper roll storage module comprises a set of second frames arranged transversely, a set of empty paper roll storage racks (5) are provided at the tops of opposite sides of the bottom support frame of the second frames, and a second guide rail (6) is installed at the tops of the empty paper roll storage racks (5); A group of roller lifting arms (10) that can be raised and lowered simultaneously are symmetrically arranged on one side close to the paper retracting portion (102) and on the lower side of the empty roll shaft storage rack (5).

2. A rewinding machine roll storage roll changing device according to claim 1, characterized in that: One end of the empty roll shaft storage rack (5) is a top roll end (501), and the other end is a storage roll end (502); A synchronous shaft (11) is rotatably connected to the bottom of the empty roll shaft storage rack (5) located below the upper roll end (501) via a bearing, and both ends of the synchronous shaft (11) are fixedly connected to the roll lifting arms (10).

3. A rewinding machine roll storage roll changing device according to claim 2, characterized in that: The roller lifting arm (10) comprises a first roller lifting arm (1011), a second roller lifting arm (1012) and a third telescopic cylinder (1013); the first roller lifting arm (1011) and the second roller lifting arm (1012) are hinged to each other end to end, and a limit block is provided at the hinge; The third telescopic cylinder (1013) is connected to the inner side of the bottom of the vertical long support frame of the second frame below the synchronous shaft (11), and the telescopic rod of the third telescopic cylinder (1013) is connected to the first roller lifting arm (1011); An arc-shaped hook roller portion matching the roller shaft is provided on the end of the second roller lifting arm (1012) away from the first roller lifting arm (1011).

4. A rewinder roll storage roll changing device according to claim 2, characterized in that: A protruding stop portion is provided at the tail of the storage roller end (502) along the extension direction of the second guide rail (6); A group of buffer arms (7) are symmetrically arranged on the empty roll shaft storage rack (5) at the outer side of the roll storage end (502); a fourth telescopic cylinder (701) is installed on the left side wall of the vertical short support frame of the second frame and located at the lower side of the buffer arms (7); The middle part of the buffer arm (7) is rotatably connected to the upper side of the empty roll shaft storage rack (5), one end of the buffer arm is interconnected with the telescopic rod of the fourth telescopic cylinder (701), and the other end is installed on the outer side of the raised stop portion through a limit block.

5. A reel changing device for a rewinding machine roll store according to claim 4, characterized in that: A group of rotatable detection switches (9) are symmetrically arranged on the outer side of the upper roller end (501); an elastic check rod (8) is arranged between the detection switch (9) and the buffer arm (7), and the elastic check rod (8) extends in the direction of the raised stop portion.

6. A reel changing device for a rewinding machine roll store according to claim 1, characterized in that: A plurality of groups of symmetrically arranged auxiliary arms (2) are provided on the lower side of the first guide rail (3) and on both sides of the mother roll storage roller frame (1); The auxiliary arm (2) comprises a first slot member (201) and a first telescopic cylinder (202); the first slot member (201) is rotatably connected to the mother roll storage roller frame (1); the first telescopic cylinder (202) is symmetrically arranged on the mother roll storage roller frame (1) and located on the left side of the first slot member (201); and the telescopic rod of the first telescopic cylinder (202) is connected to the first slot member (201).

7. A reel changing device for a rewinding machine roll store according to claim 6, characterized in that: The mother roll introduction part (101) is an upwardly extending oblique structure; the paper withdrawal part (102) further comprises a group of symmetrically arranged support bases, the locking arm (1021) is installed above the support bases, and the left side of the locking arm (1021) is provided with the docking clamp arm (4) matched therewith.

8. A reel changing device for a rewinding machine roll store according to claim 7, characterized in that: The docking clamp arm (4) comprises a second clamping slot component (401) and a second telescopic cylinder (402); the second clamping slot component (401) is rotatably connected to the mother roll storage roller frame (1); the second telescopic cylinder (402) is provided below the second clamping slot component (401) and at the bottom of the mother roll storage roller frame (1); the telescopic rod of the second telescopic cylinder (402) is connected to the docking clamp arm (4).

9. A reel changing device for a rewinding machine roll store according to claim 8, characterized in that: The first slot component (201) and the second slot component (401) are provided with arc-shaped slots matching the roller shaft.

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