Electric paper roll shelf

Abstract

The present invention relates to the technical field of papermaking machinery, and specifically discloses an electric base paper roll paper rack, comprising: two parallel beam frames, two buffer mechanisms, two first paper storage assemblies, several groups of second paper storage assemblies and two mobile trolleys, wherein the beam frames include horizontal beams and sloped beams; the present invention can first decelerate the base paper roll rolled down from the paper machine through the buffer mechanism, and then stop it on the horizontal beam under the limit block of the first paper storage assembly; when the base paper roll needs to be transferred to other paper storage assemblies or a rewinder, the two mobile trolleys can simultaneously drive the rollers at both ends of the base paper roll to roll on the horizontal beam, thereby avoiding the occurrence of the base paper roll tilting. Compared with the existing paper rack, the need for manual intervention is avoided, thereby improving work efficiency, and realizing the temporary storage and transportation of the base paper roll between the paper machine and the rewinder, which is safe, reliable and highly efficient.

Description

Technical Field

[0001] The invention relates to the technical field of papermaking machinery, in particular to an electric base paper roll shelf. Background Art

[0002] In response to customers' ever-increasing demands for product productivity, wide-width base paper roll production lines are the trend. Traditional fixed paper racks require excessive manual labor and pose significant safety risks. Hydraulic automatic paper racks rely on the gravity of the base paper roll to roll down a sloped track and move freely. Due to many factors, the movement on both sides cannot be guaranteed to be synchronized, causing the base paper roll to tilt and get stuck on the guide rail of the paper rack, requiring manual intervention to resume operation. The above two base paper roll conveying methods have low working efficiency, low system operation reliability, and both have safety risks. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the present invention provides an electric base paper roll storage rack, which has the advantages of high automation and high efficiency, and solves the problem that the existing paper storage rack requires manual intervention and causes low efficiency.

[0004] The electric base paper roll storage stand of the present invention comprises: two parallel beam frames, two buffer mechanisms, two first paper storage assemblies, several groups of second paper storage assemblies, and two movable carriages. The beam frames comprise horizontal beams and sloped beams, the sloped beams being fixedly connected to the horizontal beams via connectors. The sloped beams and the horizontal beams are both mounted on the ground via legs. The other end of the sloped beam is mounted on a paper machine, the sloped beams facing the horizontal beams and having a slope of 0.4°. The other end of the horizontal beam is mounted on a rewinder with its upper surface parallel to the ground. A guide rail is provided on the top of the beam frame to match the rollers on the base paper roll.

[0005] Two buffer mechanisms are installed on the inner side of the slope beam close to the paper machine to absorb part of the kinetic energy of the base paper roll rolling down the paper machine and reduce the rolling speed of the base paper roll;

[0006] The two first paper storage assemblies are respectively installed on the inner side of the two horizontal beams close to the slope beam; several groups of the second paper storage assemblies are installed in sequence at equal distances between the first paper storage assembly and the rewinder, for temporary storage of the base paper rolls between the paper machine and the rewinder.

[0007] Two movable carriages are used to drive the base paper rolls located on the first paper storage assembly and the second paper storage assembly to roll along the horizontal beam;

[0008] Through the above technical solution design, the base paper roll rolling down from the paper machine can be first slowed down by the buffer mechanism, and then stopped on the horizontal beam under the limit block of the first paper storage assembly. When the base paper roll needs to be transferred to other paper storage assemblies or a rewinder, the two mobile trolleys can simultaneously drive the rollers at both ends of the base paper roll to roll on the horizontal beam, thereby avoiding the tilting of the base paper roll. Compared with the existing paper rack, the need for manual intervention is avoided, thereby improving work efficiency.

[0009] As a further improvement of the present invention, the buffer mechanism includes a buffer, which is rotatably connected to the inner side of the slope beam through a mounting seat. The other end of the buffer faces the horizontal beam and is rotatably connected to a swing arm through a pin shaft. The surface of the swing arm close to the top is rotatably connected to the inner wall of the slope beam through a mounting shaft. The buffer and the swing arm form a planar connecting rod mechanism.

[0010] Through the above technical solution, the rolling speed of the base paper roll rolling down the paper machine is reduced.

[0011] As a further improvement of the present invention, the first paper storage assembly includes a paper splicing mechanism and a position limiting and holding mechanism, and the position limiting and holding mechanism is located on a side of the paper splicing mechanism close to the paper machine.

[0012] The paper receiving mechanism includes a paper receiving cylinder and a paper receiving arm that form a planar connecting rod. The fixed end of the paper receiving cylinder is rotatably connected to the support leg through a connecting piece. The telescopic end of the paper receiving cylinder is rotatably connected to the paper receiving arm through a pin shaft. One end of the paper receiving arm is rotatably connected to the inner wall of the horizontal beam, and the top of the paper receiving arm is provided with a limiting protrusion that protrudes from the upper surface of the horizontal beam.

[0013] The above technical solution is designed to play the role of the first existence component in stopping the base paper roll rolling down from the paper machine.

[0014] As a further improvement of the present invention, a group of the second paper storage components respectively include four limit and holding mechanisms, and the four limit and holding mechanisms are divided into two units. The two units are correspondingly arranged on the inner sides of two horizontal beams, and each unit includes two limit and holding mechanisms symmetrically arranged on the same horizontal beam.

[0015] The limit holding mechanism includes a planar connecting rod structure composed of a cylinder and a limit frame. The cylinder and the limit frame are rotatably connected through a rotating shaft. The ends of the cylinder and the limit frame that are away from each other are rotatably installed on the inner sides of the support legs and the horizontal beam respectively.

[0016] The above technical solution can clamp and limit the base paper roll in the second paper storage assembly.

[0017] As a further improvement of the present invention, the outer sides of the two horizontal beams are provided with walking guide rails, the moving trolley is rollingly connected to the walking guide rails, the moving trolley includes a mounting base, a reduction motor and a hydraulic pack are installed on the outer side of the mounting base, both sides of the mounting base are rotatably connected to a paper clamping cylinder connected to the hydraulic pack through a hinge, the top of the paper clamping cylinder is rotatably connected to a paper clamping arm through a pin shaft, and the end of the paper clamping arm away from the paper clamping cylinder is rotatably connected to the top center position of the mounting base; a combined bearing and a rubber-coated wheel are provided on the inner side of the mounting base, the rubber-coated wheel is transmission-connected to the reduction motor, and the combined bearing is rollingly connected to the walking guide rail.

[0018] Through the above technical solution, the movable trolley can run on and along the horizontal beam, ensuring that the base paper roll can roll smoothly on the horizontal beam.

[0019] As a further improvement of the present invention, the inner side of the horizontal beam near the rewinder is provided with a paper pushing mechanism for pushing the base paper roll to the rewinder, and the paper pushing mechanism includes a paper pushing cylinder and a paper pushing arm. The telescopic end of the paper pushing cylinder is rotatably connected to the paper pushing arm through a pin shaft, and the mounting end of the paper pushing cylinder and one end of the paper pushing arm are both rotatably connected to the inner side of the horizontal beam.

[0020] Through the above technical solution, the base paper roll located on the horizontal beam can be rolled onto the rewinder.

[0021] Preferably, the limiting frame, the paper clamping frame and the paper pushing arm are all provided with rolling wheels for contacting the rollers on the base paper roll.

[0022] Preferably, a buffer pad is provided on the side of the limiting protrusion facing the paper machine to prevent the roller on the base paper roll from directly hitting the limiting protrusion.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention can first slow down the base paper roll rolled down from the paper machine through the buffer mechanism, and then stop it on the horizontal beam under the limit block of the first paper storage component. When the base paper roll needs to be transferred to other paper storage components or a rewinder, the two mobile trolleys can simultaneously drive the rollers at both ends of the base paper roll to roll on the horizontal beam, thereby avoiding the base paper roll from tilting. Compared with the existing paper rack, the need for manual intervention is avoided, thereby improving work efficiency, and realizing the temporary storage and transportation of the base paper roll between the paper machine and the rewinder, which is safe, reliable and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the front view structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the three-dimensional structure of the buffer mechanism of the present invention;

[0029] Figure 4 Schematic diagram of the three-dimensional structure of the position limiting and holding mechanism of the present invention;

[0030] Figure 5 It is a schematic diagram of the three-dimensional structure of the paper splicing mechanism of the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of the paper pushing mechanism of the present invention;

[0032] Figure 7 Schematic diagram of the three-dimensional structure of the mobile tester of the present invention;

[0033] Figure 8 For the present invention Figure 2 Schematic diagram of the enlarged cross-section structure of AA.

[0034] In the figure: 1. Beam frame; 101. Horizontal beam; 102. Slope beam; 103. Support leg; 2. Buffer mechanism; 201. Buffer; 202. Swing arm; 3. Paper receiving mechanism; 301. Paper receiving cylinder; 302. Paper receiving arm; 303. Limiting protrusion; 4. Limiting and holding mechanism; 401. Cylinder; 402. Limiting frame; 5. Moving trolley; 501. Mounting base; 502. Reducer motor; 503. Hydraulic package; 504. Paper clamping cylinder; 505. Paper clamping arm; 506. Combined bearing; 507. Rubber-coated wheel; 6. Paper pushing mechanism; 601. Paper pushing cylinder; 602. Paper pushing arm; 7. Traveling guide rail. DETAILED DESCRIPTION

[0035] The following drawings illustrate various embodiments of the present invention. For clarity, many physical details will be included in the following description. However, it should be understood that these physical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0036] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] See also Figure 1 The electric base paper roll paper stand of the present invention comprises: two parallel beam frames 1, two buffer mechanisms 2, two first paper storage assemblies, several groups of second paper storage assemblies and two mobile trolleys 5. The beam frame 1 comprises a horizontal beam 101 and a slope beam 102. The slope beam 102 is fixedly connected to the horizontal beam 101 by a connecting piece. The slope beam 102 and the horizontal beam 101 are both installed on the ground through supporting legs 103. The other end of the slope beam 102 is installed on the paper machine. The slope direction of the slope beam 102 faces the horizontal beam 101 and the slope is 0.4°. The other end of the horizontal beam 101 is installed on the rewinder and the upper surface is parallel to the ground. The top of the beam frame 1 is provided with a guide rail adapted to the roller on the base paper roll.

[0038] Two buffer mechanisms 2 are respectively installed on the inner side of the slope beam 102 close to the paper machine, and are used to absorb part of the kinetic energy of the base paper roll rolling down the paper machine, thereby reducing the rolling speed of the base paper roll;

[0039] The two first paper storage assemblies are respectively installed on the inner side of the two horizontal beams 101 close to the slope beam 102; several groups of second paper storage assemblies are installed in sequence at equal distances between the first paper storage assemblies and the rewinder, for temporary storage of base paper rolls between the paper machine and the rewinder.

[0040] The two moving trolleys 5 are used to drive the base paper rolls located on the first paper storage assembly and the second paper storage assembly to roll along the horizontal beam 101;

[0041] Through the above technical solution, the base paper roll rolling down from the paper machine can be first decelerated by the buffer mechanism 2, and then stopped on the horizontal beam 101 under the limit block of the first paper storage assembly. When the base paper roll needs to be transferred to other paper storage assemblies or a rewinder, the two mobile trolleys 5 can simultaneously drive the rollers at both ends of the base paper roll to roll on the horizontal beam 101, thereby avoiding the occurrence of tilting of the base paper roll. Compared with the existing paper rack, the need for manual intervention is avoided, thereby improving work efficiency.

[0042] See also Figure 1 and Figure 3 The buffer mechanism 2 includes a buffer 201, which is rotatably connected to the inner side of the slope beam 102 through a mounting seat. The other end of the buffer 201 faces the horizontal beam 101 and is rotatably connected to a swing arm 202 through a pin shaft. The surface of the swing arm 202 near the top is rotatably connected to the inner wall of the slope beam 102 through a mounting shaft. The buffer 201 and the swing arm 202 form a planar connecting rod mechanism, which reduces the rolling speed of the base paper roll rolling down the paper machine.

[0043] See also Figure 1 、 Figure 4 and Figure 5 The first paper storage assembly includes a paper splicing mechanism 3 and a position limiting and holding mechanism 4. The position limiting and holding mechanism 4 is located on the side of the paper splicing mechanism 3 close to the paper machine.

[0044] The paper receiving mechanism 3 includes a paper receiving cylinder 301 and a paper receiving arm 302 which form a planar connecting rod. The fixed end of the paper receiving cylinder 301 is rotatably connected to the support leg 103 through a connecting piece, and the telescopic end of the paper receiving cylinder 301 is rotatably connected to the paper receiving arm 302 through a pin shaft. One end of the paper receiving arm 302 is rotatably connected to the inner wall of the horizontal beam 101, and the top of the paper receiving arm 302 is provided with a limiting protrusion 303 protruding from the upper surface of the horizontal beam 101, which plays the role of stopping the base paper roll rolling down from the paper machine on the first existing component, and the limiting protrusion 303 is provided with a buffer pad on the side facing the paper machine to prevent the roller on the base paper roll from directly hitting the limiting protrusion 303.

[0045] A group of second paper storage components includes four limit holding mechanisms 4, which are divided into two units. The two units are correspondingly arranged on the inner sides of two horizontal beams 101, and each unit includes two limit holding mechanisms 4 symmetrically arranged on the same horizontal beam 101. The limit holding mechanism 4 includes a planar connecting rod structure composed of a cylinder 401 and a limit frame 402. The cylinder 401 and the limit frame 402 are rotatably connected by a rotating shaft. The ends of the cylinder 401 and the limit frame 402 that are away from each other are rotatably installed on the support legs 103 and the inner sides of the horizontal beam 101, respectively, to clamp and limit the base paper roll located in the second paper storage component.

[0046] See also Figure 1 、 Figure 2 、 Figure 7 and Figure 8 The outer sides of the two horizontal beams 101 are provided with walking guide rails 7, and the mobile trolley 5 is rollingly connected to the walking guide rails 7. The mobile trolley 5 includes a mounting base 501, and a reduction motor 502 and a hydraulic package 503 are installed on the outer side of the mounting base 501. Both sides of the mounting base 501 are rotatably connected to the paper clamping cylinder 504 connected to the hydraulic package 503 through a hinge, and the top of the paper clamping cylinder 504 is rotatably connected to the paper clamping arm 505 through a pin shaft. The end of the paper clamping arm 505 away from the paper clamping cylinder 504 is rotatably connected to the top center position of the mounting base 501; the inner side of the mounting base 501 is provided with a combined bearing 506 and a rubber-coated wheel 507, the rubber-coated wheel 507 is transmission-connected to the reduction motor 502, and the combined bearing 506 is rollingly connected to the walking guide rail 7, so that the mobile trolley 5 can run along the horizontal beam 101 on the horizontal beam 101, ensuring that the base paper roll can roll smoothly on the horizontal beam 101.

[0047] See also Figure 6 A paper pushing mechanism 6 for pushing the base paper roll to the rewinder is provided on the inner side of the horizontal beam 101 near the rewinder. The paper pushing mechanism 6 includes a paper pushing cylinder 601 and a paper pushing arm 602. The telescopic end of the paper pushing cylinder 601 is rotatably connected to the paper pushing arm 602 through a pin shaft, and the mounting end of the paper pushing cylinder 601 and one end of the paper pushing arm 602 are both rotatably connected to the inner side of the horizontal beam 101, which enables the base paper roll located on the horizontal beam 101 to roll onto the rewinder.

[0048] Preferably, the limiting frame 402, the paper clamping frame and the paper pushing arm 602 are all provided with rolling wheels for contacting the rollers on the base paper roll.

[0049] When using the present invention, the base paper roll is a roll filled with paper, with rolling rollers at both ends. Since the base paper roll is very heavy, weighing 120 tons in the present invention, when the base paper roll rolls from the paper machine to the first paper storage assembly, the kinetic energy is very large. The buffer mechanism 2 located between the paper machine and the first paper storage assembly, when the base paper roll rolls over, the rollers of the base paper roll first contact the swing arm 202 of the buffer mechanism 2. The swing arm 202 can rotate on the horizontal beam 101. The other end of the swing arm 202 is connected to the buffer 201. The swing arm 202 drives the buffer 201 to compress, absorbing part of the kinetic energy of the base paper roll, thereby achieving the purpose of deceleration. After the base paper roll passes, the buffer 201 returns to the base paper state.

[0050] When the base paper roll rolls from the side of the paper machine to the first paper storage assembly, the limiting frame 402 in the limiting holding mechanism 4 in the first paper storage assembly rotates downward, and at this time the piston rod of the cylinder 401 is in a retracted state; when the base paper roll rolls from the side of the paper machine to the first paper storage assembly, it will first contact with the buffer mechanism 2, absorb part of the kinetic energy, and the speed is further reduced, and then contact with the limiting protrusion 303 in the paper splicing mechanism 3, the paper splicing cylinder 301 and the paper splicing arm 302 are a connecting rod mechanism, and the remaining kinetic energy of the base paper roll is absorbed by the paper splicing cylinder 301, thereby stopping the base paper roll. At this time, in order to prevent the base paper roll from slipping backward, the limiting frame 402 needs to rotate upward, and at this time the piston rod of the cylinder 401 is in an extended state, and the rolling wheel on the paper splicing arm 302 contacts the roller on the base paper roll, thereby limiting the base paper roll to the first paper storage assembly;

[0051] When there is no original paper roll on the second paper storage assembly and an original paper roll is needed, the paper clamping arm 505 in the mobile trolley 5 located outside the first paper storage assembly is driven by the paper clamping cylinder 504 to rotate upward, and the two clamping arms on the mobile trolley 5 will make the carried rolling wheels contact with the rollers of the original paper roll at the same time. At the same time, the limit frame 402 in the limit holding mechanism 4 in the first paper storage assembly and the paper receiving arm 302 in the paper receiving mechanism 3 swing downward at the same time, and the original paper roll can roll back and forth; then the reduction motor 502 drives the rubberized The wheel 507 rolls on the travel guide rail 7, causing the mobile trolley 5 to carry the base paper roll forward or backward. When the mobile trolley 5 rolls the base paper roll to one of the second paper storage assemblies, the limit holding mechanism 4 in the second paper storage assembly will be located on both sides of the base paper roll, and then the limit frames 402 in the limit holding mechanism 4 on both sides of the base paper roll will swing upward to limit the base paper roll from rolling forward and backward. Then, the paper clamping arm 505 of the mobile trolley 5 swings downward to release the base paper roll roller, and waits for system instructions at this position.

[0052] When the base paper roll is needed at the rewinder, the mobile trolley 5 moves to the outside of the second paper storage assembly, and then the paper clamping arm 505 rotates upward to hold the roller of the base paper roll. At the same time, the limit frame 402 in the limit holding mechanism 4 in the second paper storage assembly rotates downward, allowing the base paper roll to move forward or backward. Then the mobile trolley 5 transports the base paper roll to the top of the paper pushing mechanism 6, and then extends the piston rod of the paper pushing cylinder 601 to push the paper pushing arm 602 to rotate upward. The rolling wheel on the paper pushing arm 602 contacts the roller of the base paper roll, thereby pushing the base paper roll onto the rewinder, and the mobile trolley 5 returns to the adjacent paper storage position to wait for the next instruction.

[0053] The above is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An electric paper roll stand, characterized in that: include: Two parallel beam frames (1), the beam frame (1) comprising a horizontal beam (101) and a slope beam (102), the slope beam (102) being fixedly connected to the horizontal beam (101) via a connecting piece, the slope beam (102) and the horizontal beam (101) being both mounted on the ground via supporting legs (103), the other end of the slope beam (102) being mounted on a paper machine, the slope of the slope beam (102) being directed toward the horizontal beam (101) and having a slope of 0.4°, the other end of the horizontal beam (101) being mounted on a rewinder with its upper surface parallel to the ground; Two buffer mechanisms (2) are respectively installed on the inner side of the slope beam (102) close to the paper machine, and are used to absorb part of the kinetic energy of the base paper roll rolling down from the paper machine, thereby reducing the rolling speed of the base paper roll; Two first paper storage assemblies and several groups of second paper storage assemblies, the two first paper storage assemblies are respectively installed on the inner side of two horizontal beams (101) close to the slope beam (102); several groups of second paper storage assemblies are installed in sequence at equal distances between the first paper storage assemblies and the rewinder, and are used for temporary storage of base paper rolls between the paper machine and the rewinder; Two movable carriages (5) for driving the base paper rolls located on the first paper storage assembly and the second paper storage assembly to roll along the horizontal beam (101); The top of the crossbeam frame (1) is provided with a guide rail adapted to the roller on the base paper roll; The buffer mechanism (2) includes a buffer (201), the buffer (201) is rotatably connected to the inner side of the slope beam (102) via a mounting seat, the other end of the buffer (201) faces the horizontal beam (101) and is rotatably connected to a swing arm (202) via a pin shaft, the surface of the swing arm (202) near the top is rotatably connected to the inner wall of the slope beam (102) via a mounting shaft, and the buffer (201) and the swing arm (202) form a planar connecting rod mechanism; The first paper storage assembly comprises a paper splicing mechanism (3) and a position limiting and holding mechanism (4), wherein the position limiting and holding mechanism (4) is located on a side of the paper splicing mechanism (3) close to the paper machine.

2. The electric paper roll stand according to claim 1, characterized in that: The paper receiving mechanism (3) comprises a paper receiving cylinder (301) and a paper receiving arm (302) which form a planar connecting rod. The fixed end of the paper receiving cylinder (301) is rotatably connected to the support leg (103) via a connecting piece. The telescopic end of the paper receiving cylinder (301) is rotatably connected to the paper receiving arm (302) via a pin. One end of the paper receiving arm (302) is rotatably connected to the inner wall of the horizontal beam (101). A limiting protrusion (303) protruding from the upper surface of the horizontal beam (101) is provided on the top of the paper receiving arm (302).

3. The electric paper roll stand according to claim 1, characterized in that: A set of the second paper storage components respectively includes four position limiting and holding mechanisms (4), and the four position limiting and holding mechanisms (4) are divided into two units. The two units are correspondingly arranged on the inner sides of two horizontal beams (101), and each unit includes two position limiting and holding mechanisms (4) symmetrically arranged on the same horizontal beam (101).

4. The electric paper roll stand according to claim 3, characterized in that: The position limiting and holding mechanism (4) comprises a planar connecting rod structure consisting of a cylinder (401) and a position limiting frame (402), wherein the cylinder (401) and the position limiting frame (402) are rotatably connected via a rotating shaft, and the ends of the cylinder (401) and the position limiting frame (402) that are away from each other are rotatably mounted on the inner sides of the supporting legs (103) and the horizontal beam (101), respectively.

5. The electric paper roll stand according to claim 1, characterized in that: The outer sides of the two horizontal beams (101) are both provided with walking guide rails (7), and the moving trolley (5) is rollingly connected to the walking guide rails (7).

6. The electric paper roll stand according to claim 1, characterized in that: The mobile trolley (5) comprises a mounting base (501), a reduction motor (502) and a hydraulic pack (503) are mounted on the outer side of the mounting base (501), both sides of the mounting base (501) are rotatably connected to a paper clamping cylinder (504) connected to the hydraulic pack (503) via a hinge, the top of the paper clamping cylinder (504) is rotatably connected to a paper clamping arm (505) via a pin, and one end of the paper clamping arm (505) away from the paper clamping cylinder (504) is rotatably connected to the top center of the mounting base (501).

7. The electric paper roll stand according to claim 6, characterized in that: A combined bearing (506) and a rubber-coated wheel (507) are provided on the inner side of the mounting base (501); the rubber-coated wheel (507) is in transmission connection with the reduction motor (502); and the combined bearing (506) is in rolling connection with the walking guide rail (7).

8. The electric paper roll stand according to claim 7, characterized in that: A paper pushing mechanism (6) for pushing the base paper roll to the rewinder is provided on the inner side of the horizontal beam (101) close to the rewinder. The paper pushing mechanism (6) comprises a paper pushing cylinder (601) and a paper pushing arm (602). The telescopic end of the paper pushing cylinder (601) is rotatably connected to the paper pushing arm (602) via a pin shaft, and the mounting end of the paper pushing cylinder (601) and one end of the paper pushing arm (602) are both rotatably connected to the inner side of the horizontal beam (101).

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