A multifunctional paper cutting mechanism and paper cutting method for coreless and cored rewinding machines

Abstract

A multifunctional paper-breaking mechanism for a coreless and cored rewinding machine includes an upper rewinding roller, a lower rewinding roller, a rewinding paper-feeding cloth roller and a paper-pressing hanging roller, wherein the lower rewinding roller is located at the lower rear of the upper rewinding roller, the rewinding paper-feeding cloth roller is located in front of the upper rewinding roller, and the paper-pressing hanging roller is located directly above the lower rewinding roller. The triangular area formed between the upper rewinding roller, the lower rewinding roller and the paper-pressing hanging roller is a forming area, and a plurality of air flow channels are arranged inside the upper rewinding roller, and the plurality of air flow channels are evenly spaced along the circumferential direction of the roller body, and each air flow channel is parallel to the rotation center line of the roller body and is through from left to right. The present invention has the following four functions: the appearance of the formed paper roll can be made nearly consistent with the tightness inside the paper roll; the appearance of the formed paper roll can be made fluffy; the appearance of the formed paper roll can be made more compact; by adjusting the separation or combination of the rewinding paper-feeding cloth roller and the original paper, the influence of the paper-breaking error caused by the tension of the paper during paper breaking can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of paper roll processing, and in particular relates to a multifunctional paper breaking mechanism of a coreless and cored rewinding machine and a paper breaking method thereof. Background Art

[0002] At present, in the process of producing paper rolls, the tail of the paper roll must be cut off every time a roll of paper roll is rewound. The existing paper cutting method generally uses a power mechanism to drive the paper cutter to move along the axial direction of the paper roll. The paper cutter must move from one end of the paper roll to the other end to complete the paper cutting. The paper cutting time is long, which reduces the working efficiency of the rewinder. Moreover, this paper cutting method has a single function and only serves the paper cutting function. It cannot adjust whether the surface of the paper roll is fluffy or compact in real time, and adjust the influence of the tension of the original paper on the paper breaking error. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a multifunctional paper breaking mechanism and a paper breaking method for coreless and cored rewinders, which can quickly break paper, adjust the fluffiness or compactness of the surface of the rolled paper in time according to needs, and fully reduce the paper breaking error.

[0004] To solve the above technical problems, the present invention adopts the following technical scheme: a multifunctional paper breaking mechanism of a coreless and cored rewinding machine, comprising an upper rewinding roller, a lower rewinding roller, a rewinding paper feeding cloth roller and a paper pressing hanging roller, the lower rewinding roller is located at the rear and lower part of the upper rewinding roller, the rewinding paper feeding cloth roller is located in front of the upper rewinding roller, the paper pressing hanging roller is located directly above the lower rewinding roller, the triangular area formed between the upper rewinding roller, the lower rewinding roller and the paper pressing hanging roller is a forming area, a plurality of air flow channels are arranged inside the upper rewinding roller, the plurality of air flow channels are evenly spaced along the circumferential direction of the roller body, each air flow channel is parallel to the rotation center line of the roller body and is through from left to right, the two ports of each air flow channel are a group of air flow connecting ports, the outer circumferential surface of the upper rewinding roller is provided with a plurality of air holes connected with each air flow channel, the left and right ends of the upper rewinding roller are provided with blowing hoods which can be simultaneously connected with the air flow connecting ports at both ends of the same air flow channel, and the blowing hood is located at the front lower part of the forming area.

[0005] The left and right ends of the paper pressing roller are respectively provided with vertical cylinders for driving the paper pressing roller to move up and down, and the left and right ends of the rewinding paper feeding cloth roller are respectively provided with horizontal cylinders for driving the rewinding paper feeding cloth roller to move horizontally forward and backward.

[0006] A partition is arranged in each air flow channel on the rewinding upper roller and the rewinding lower roller, and the partition divides the air flow channel into a left chamber and a right chamber.

[0007] The air holes connected to the same air flow channel are arranged in a straight line at intervals. The partition is located in the middle of the air flow channel and between the two middle air holes. The left side and the right side of the partition are respectively adjacent to the two middle air holes.

[0008] The distance H between the upper rewinding roller and the lower rewinding roller is less than or equal to 4 mm.

[0009] A paper breaking method of a multifunctional paper breaking mechanism of a coreless and cored rewinder, including the following three working modes:

[0010] (1) Achieve close consistency between the appearance and internal compactness of the formed roll paper;

[0011] (2) Make the surface of the formed roll paper fluffy;

[0012] (3) Make the appearance of the formed roll paper more compact.

[0013] The specific paper breaking process of working mode (1) is as follows:

[0014] The rewinding upper roller, the rewinding lower roller and the paper pressing hanging roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the lower circumferential surface of the rewinding upper roller. After the paper is formed in the forming area, high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller, and the high-pressure gas enters the air flow channel. The air holes connected to the air flow channel blow air outward at the same time, so that the formed paper is blown off at the perforation line of the original paper. At the same time, the vertical cylinder drives the paper pressing hanging roller to move downward to press the paper. Since the paper is running at the same speed as the rewinding upper roller, the rewinding lower roller and the paper pressing hanging roller, the paper is separated from the forming area by the external airflow without speed difference when the paper is formed. On the other hand, the paper is formed during the same speed operation, so the compactness of the inside and outside of the paper is consistent.

[0015] The specific paper breaking process of working mode (2) is as follows:

[0016] The rewinding upper roller, the rewinding lower roller and the paper pressing roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the lower circumferential surface of the rewinding upper roller. After the paper is formed in the forming area, the rewinding lower roller slows down in advance, and then the vertical cylinder drives the paper pressing roller to move downward to press the formed paper. At the same time, the paper pressing roller speeds up, and then high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller. The high-pressure gas enters the air flow channel, and the air holes connected to the air flow channel blow outward at the same time, so that the formed paper is blown off at the perforated line of the original paper. As the paper roll is accelerated by the pressure roller and decelerated by the lower rewinding roller when the upper rewinding roller, lower rewinding roller and pressure roller are running at the same speed, the deceleration of the lower rewinding roller is to cooperate with the instantaneous acceleration of the pressure roller to break the paper, the paper roll will leave the forming area with the fast pressure roller. On the other hand, the speed of the pressure roller is higher than that of the upper and lower rewinding rollers. The paper sent out by the pressure roller is not instantly taken back by the upper and lower rewinding rollers, and the surface of the paper roll that leaves the forming area will appear fluffy.

[0017] The specific paper breaking process of working mode (3) is as follows:

[0018] The rewinding upper roller, the rewinding lower roller and the paper pressing roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the lower circumferential surface of the rewinding upper roller. After the paper is formed in the forming area, the rewinding lower roller and the paper pressing roller are accelerated at the same time, and then the vertical cylinder drives the paper pressing roller to move downward to press the formed paper, and then the rewinding lower roller resumes its original speed. At the same time, high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller, and the high-pressure gas enters the air flow channel. The air holes connected to the air flow channel blow outward at the same time, so that the formed paper is blown off at the perforated line of the original paper. When the upper rewinding roller, the lower rewinding roller and the paper pressing roller are running at the same speed, the speed of the paper pressing roller and the speed of the lower rewinding roller are increased and the speed is reduced twice. The instantaneous speed reduction of the lower rewinding roller is to cooperate with the instantaneous speed increase of the paper pressing roller to break the paper, and the paper roll will leave the forming area with the fast paper pressing roller. On the other hand, the speeds of the paper pressing roller and the lower rewinding roller are higher than those of the upper rewinding roller. The paper sent out by the upper rewinding roller will be quickly taken back by the paper pressing roller and the lower rewinding roller. The secondary instantaneous speed reduction of the lower rewinding roller is to cooperate with the instantaneous speed increase of the paper pressing roller to break the paper and make the surface of the paper roll that has left the forming area in a compact state.

[0019] In combination with the three working modes, due to the influence of the tension of the original paper, when the tension of the paper is small, the rewinding paper feeding cloth roller and the original paper are in a pressed state, and the horizontal cylinder drives the rewinding paper feeding cloth roller to move forward, and the pressure of the rewinding paper feeding cloth roller on the lower front side of the rewinding lower roller is reduced, so that the tension of the original paper can be appropriately increased; when the tension of the original paper is large, the rewinding paper feeding cloth roller and the original paper are in a separated state, which does not affect the tension of the original paper, thereby realizing the error caused by the tension of the original paper to the paper break.

[0020] The working principle and technical effects of the present invention are as follows:

[0021] (1) The partition plate is arranged in the air flow channel of the rewinding upper roller, so that the existing left and right through air flow channel is divided into a left chamber and a right chamber that are not through, thereby reducing the volume inside the air flow channel. In this way, when sucking or blowing air, under the conditions of the original adsorption force or blowing force, the power of the vacuum equipment or the air compressor equipment is naturally reduced, thereby saving electric energy.

[0022] (2) The partition is located in the middle of the air flow channel and between the two middle air holes. When the same vacuum pump is used for suction, the air pressure balance inside the left chamber and the right chamber can be ensured. The left and right sides of the partition are adjacent to the two middle air holes. Since there is a distance of about 100 mm between two adjacent air holes, the volume inside the air flow channel is further reduced, thereby further saving energy and reducing consumption.

[0023] (3) The rewinding upper roller and the rewinding paper feeding cloth roller have fixed speeds. The paper feeding cloth roller can press and separate the original paper. The rewinding lower roller and the paper pressing hanging roller are connected and driven by servo motors respectively, which can accelerate or decelerate. At the same time, the rewinding hanging roller is suspended by a vertical cylinder.

[0024] (4) The present invention has the following four functions: Function 1: it can achieve that the outer surface of the formed paper roll and the inner tightness of the paper roll are nearly consistent; Function 2: it can achieve that the outer surface of the formed paper roll is fluffy; Function 3 can achieve that the outer surface of the formed paper roll is more compact; Function 4: by adjusting the separation or combination of the rewinding paper feeding cloth roller and the original paper, the influence of paper breaking error caused by the tension of the paper when the paper breaks can be avoided.

[0025] (5) The present invention utilizes a multifunctional paper cutting mechanism to independently complete the requirements of the four functional sections. The user's requirements for the paper roll surface to be fluffy or compact and the inner or outer surface of the paper roll to be consistent in tightness can be quickly achieved in this mechanism, thereby reducing power and achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 It is a schematic structural diagram of the rewinding upper roller in the present invention. DETAILED DESCRIPTION

[0028] like Figure 1 and Figure 2 As shown, a multifunctional paper breaking mechanism of a coreless and cored rewinding machine of the present invention comprises an upper rewinding roller 1, a lower rewinding roller 2, a rewinding paper feeding felt cloth roller 3 and a paper pressing hanging roller 4, wherein the lower rewinding roller 2 is located at the rear and lower part of the upper rewinding roller 1, the rewinding paper feeding felt cloth roller 3 is located in front of the upper rewinding roller 1, the paper pressing hanging roller 4 is located directly above the lower rewinding roller 2, and a triangular area formed between the upper rewinding roller 1, the lower rewinding roller 2 and the paper pressing hanging roller 4 is a forming area 5, and a plurality of air flow channels 6 are arranged inside the upper rewinding roller 1. A plurality of air flow channels 6 are evenly spaced apart along the circumferential direction of the roller body, each of the air flow channels 6 is parallel to the rotation center line of the roller body and is connected from left to right, and the two ends of each of the air flow channels 6 form a group of air flow connection ports. A plurality of air holes 7 connected to each of the air flow channels 6 are provided on the outer circumferential surface of the rewinding upper roller 1, and a blowing hood 8 which can be connected to the air flow connection ports at both ends of the same air flow channel 6 is provided at both left and right ends of the rewinding upper roller 1, and the blowing hood 8 is located at the front lower part of the forming area 5.

[0029] The left and right ends of the paper pressing roller 4 are respectively provided with vertical cylinders 9 for driving the paper pressing roller 4 to move up and down, and the left and right ends of the rewinding and feeding felt roller 3 are respectively provided with horizontal cylinders 10 for driving the rewinding and feeding felt roller 3 to move horizontally forward and backward.

[0030] A partition plate 11 is provided in each air flow channel 6 on the rewinding upper roller 1 and the rewinding lower roller 2, and the partition plate 11 divides the air flow channel 6 into a left chamber and a right chamber.

[0031] The air holes 7 connected to the same air flow channel 6 are arranged in a straight line at intervals. The partition 11 is located in the middle of the air flow channel 6 and between the two middle air holes 7. The left side and the right side of the partition 11 are respectively adjacent to the two middle air holes 7.

[0032] The distance H between the upper rewinding roller 1 and the lower rewinding roller 2 is less than or equal to 4 mm.

[0033] A paper breaking method of a multifunctional paper breaking mechanism of a coreless and cored rewinder, including the following three working modes:

[0034] (1) Achieving nearly uniform compactness between the exterior and interior of the formed paper roll 12;

[0035] (2) making the surface of the formed roll paper 12 fluffy;

[0036] (3) The appearance of the formed roll paper 12 is made more compact.

[0037] The specific paper breaking process of working mode (1) is as follows:

[0038] The rewinding upper roller 1, the rewinding lower roller 2 and the paper pressing hanging roller 4 rotate at the same speed, and the original paper 13 enters the forming area 5 from the front side of the rewinding upper roller 1 downward along the lower circumferential surface of the rewinding upper roller 1. After the paper roll 12 is formed in the forming area 5, high-pressure gas is introduced into the blowing hoods 8 at both ends of the rewinding upper roller 1, and the high-pressure gas enters the air flow channel 6. The air holes 7 connected to the air flow channel 6 blow air outward at the same time, so that the formed paper roll 12 is blown off at the perforation line of the original paper 13. At the same time, the vertical cylinder 9 drives the paper pressing hanging roller 4 to move downward and press the paper roll 12; since the paper roll 12 is running at the same speed as the rewinding upper roller 1, the rewinding lower roller 2 and the paper pressing hanging roller 4, the paper roll 12 is separated from the forming area 5 by the influence of the external airflow on the basis of no speed difference when the paper roll 12 is formed. On the other hand, the paper roll 12 is formed during the same speed operation, so the compactness of the inside and outside of the paper roll 12 will be consistent.

[0039] The specific paper breaking process of working mode (2) is as follows:

[0040] The rewinding upper roller 1, the rewinding lower roller 2 and the paper pressing roller 4 rotate at the same speed, and the base paper 13 moves downward from the front side of the rewinding upper roller 1 along the lower circumferential surface of the rewinding upper roller 1 into the forming area 5. After the paper roll 12 is formed in the forming area 5, the rewinding lower roller 2 slows down in advance, and then the vertical cylinder 9 drives the paper pressing roller 4 to move downward to press the formed paper roll 12. At the same time, the paper pressing roller 4 speeds up, and then the blowing hoods 8 at both ends of the rewinding upper roller 1 are introduced with high-pressure gas, and the high-pressure gas enters the air flow channel 6. The air holes 7 connected to the air flow channel 6 blow air outward at the same time, so that the formed paper roll 12 is blown off at the perforated line of the base paper 13. Since the paper roll 12 is accelerated by the pressure roller 4 and decelerated by the lower rewinding roller 2 when the upper rewinding roller 1, the lower rewinding roller 2 and the pressure roller 4 are running at the same speed, and the deceleration of the lower rewinding roller 2 is to cooperate with the instantaneous acceleration of the pressure roller 4 to break the paper, the paper roll 12 will separate from the forming area 5 along with the fast pressure roller 4. On the other hand, the speed of the pressure roller 4 is higher than that of the upper rewinding roller 1 and the lower rewinding roller 2. The paper fed by the pressure roller 4 is not instantly recovered by the upper rewinding roller 1 and the lower rewinding roller 2, and the surface of the paper roll that separates from the forming area 5 will appear fluffy.

[0041] The specific paper breaking process of working mode (3) is as follows:

[0042] The rewinding upper roller 1, the rewinding lower roller 2 and the paper pressing roller 4 rotate at the same speed, and the base paper 13 enters the forming area 5 from the front side of the rewinding upper roller 1 downward along the lower circumferential surface of the rewinding upper roller 1. After the paper roll 12 is formed in the forming area 5, the rewinding lower roller 2 and the paper pressing roller 4 are accelerated at the same time, and then the vertical cylinder 9 drives the paper pressing roller 4 to move downward to press the formed paper roll 12, and then the rewinding lower roller 2 resumes its original speed. At the same time, high-pressure gas is introduced into the blowing hoods 8 at both ends of the rewinding upper roller 1, and the high-pressure gas enters the air flow channel 6. The air holes 7 connected to the air flow channel 6 blow air outward at the same time, so that the formed paper roll 12 is blown off at the perforated line of the base paper 13, and then the When the paper roll is running at the same speed among the rewinding upper roller 1, the rewinding lower roller 2 and the paper pressing roller 4, the paper roll 12 will leave the forming area 5 along with the fast paper pressing roller 4. On the other hand, the speeds of the paper pressing roller 4 and the rewinding lower roller 2 are higher than those of the rewinding upper roller 1. The paper fed by the rewinding upper roller 1 will be quickly recovered by the paper pressing roller 4 and the rewinding lower roller 2. The secondary instantaneous deceleration of the rewinding lower roller 2 is to cooperate with the instantaneous acceleration of the paper pressing roller 4 to break the paper and make the surface of the paper roll leaving the forming area 5 in a compact state.

[0043] In combination with the three working modes, due to the influence of the tension of the original paper 13, when the paper tension is small, the rewinding paper feeding cloth roller 3 and the original paper 13 are in a pressed state, and the horizontal cylinder 10 drives the rewinding paper feeding cloth roller 3 to move forward, and the pressure of the rewinding paper feeding cloth roller 3 on the lower front side of the rewinding lower roller 2 is reduced, so that the tension of the original paper 13 can be appropriately increased; when the tension of the original paper 13 is large, the rewinding paper feeding cloth roller 3 and the original paper 13 are in a separated state, which does not affect the tension of the original paper 13, thereby realizing the error caused by the tension of the original paper 13 on the paper break.

[0044] This embodiment does not impose any formal limitation on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A paper breaking method of a multifunctional paper breaking mechanism of a coreless and cored rewinding machine, the multifunctional paper breaking mechanism of the coreless and cored rewinding machine comprises an upper rewinding roller, a lower rewinding roller, a rewinding paper feeding felt cloth roller and a paper pressing hanging roller, the lower rewinding roller is located at the rear and lower part of the upper rewinding roller, the rewinding paper feeding felt cloth roller is located in front of the upper rewinding roller, the paper pressing hanging roller is located directly above the lower rewinding roller, the triangular area formed between the upper rewinding roller, the lower rewinding roller and the paper pressing hanging roller is a forming area, a plurality of air flow channels are arranged inside the upper rewinding roller, the plurality of air flow channels are evenly spaced along the circumferential direction of the roller body, each air flow channel is parallel to the rotation center line of the roller body and is through from left to right, the two ends of each air flow channel are a group of air flow connecting ports, the outer circumferential surface of the upper rewinding roller is provided with a plurality of air holes connected with each air flow channel, the left and right ends of the upper rewinding roller are provided with air blowing hoods which can be connected with the air flow connecting ports at both ends of the same air flow channel at the same time, and the air blowing hood is located at the front lower part of the forming area; The left and right ends of the paper pressing roller are respectively provided with vertical cylinders for driving the paper pressing roller to move up and down, and the left and right ends of the rewinding paper feeding cloth roller are respectively provided with horizontal cylinders for driving the rewinding paper feeding cloth roller to move horizontally forward and backward; A partition is provided in each air flow channel on the rewinding upper roller and the rewinding lower roller, and the partition divides the air flow channel into a left chamber and a right chamber; The air holes connected to the same air flow channel are arranged in a straight line at intervals, the partition is located in the middle of the air flow channel and between the two middle air holes, and the left side and the right side of the partition are respectively adjacent to the two middle air holes; The distance H between the rewinding upper roller and the rewinding lower roller is less than or equal to 4mm; The paper cutting method is characterized by: There are three working modes: (1) Achieve close consistency between the appearance and internal compactness of the formed roll paper; (2) Make the surface of the formed roll paper fluffy; (3) Make the appearance of the formed roll paper more compact; The specific paper breaking process of working mode (1) is as follows: The rewinding upper roller, the rewinding lower roller and the paper pressing hanging roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the circumferential surface of the lower part of the rewinding upper roller. After the paper is formed in the forming area, high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller, and the high-pressure gas enters the air flow channel. The air holes connected to the air flow channel blow air outward at the same time, so that the formed paper roll is blown off at the perforation line of the original paper. At the same time, the vertical cylinder drives the paper pressing hanging roller to move downward and press the paper roll; because the paper roll is running at the same speed as the rewinding upper roller, the rewinding lower roller and the paper pressing hanging roller, the paper roll is separated from the forming area by the external air flow without speed difference when the paper roll is formed. On the other hand, the paper roll is formed during the same speed operation, so the compactness of the inside and outside of the paper roll is consistent; The specific paper breaking process of working mode (2) is as follows: The rewinding upper roller, the rewinding lower roller and the paper pressing roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the lower circumferential surface of the rewinding upper roller. After the paper is formed in the forming area, the rewinding lower roller slows down in advance, and then the vertical cylinder drives the paper pressing roller to move downward to press the formed paper, and at the same time the paper pressing roller speeds up, and then high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller, and the high-pressure gas enters the air flow channel, and the air holes connected to the air flow channel blow air outward at the same time, so that the formed paper roll is on the original paper. The perforated line is blown off. Since the paper roll is accelerated by the pressure roller and decelerated by the lower rewinding roller when the upper rewinding roller, the lower rewinding roller and the pressure roller are running at the same speed, the lower rewinding roller decelerates to match the pressure roller with the instantaneous acceleration to break the paper. The paper roll will leave the forming area with the fast pressure roller. On the other hand, the speed of the pressure roller is higher than that of the upper rewinding roller and the lower rewinding roller. The paper sent out by the pressure roller is not instantly taken back by the upper rewinding roller and the lower rewinding roller. The surface of the paper roll leaving the forming area will be fluffy. The specific paper breaking process of working mode (3) is as follows: The rewinding upper roller, the rewinding lower roller and the paper pressing roller rotate at the same speed, and the original paper enters the forming area from the front side of the rewinding upper roller downward along the lower circumferential surface of the rewinding upper roller. After the paper is formed in the forming area, the rewinding lower roller and the paper pressing roller are accelerated at the same time, and then the vertical cylinder drives the paper pressing roller to move downward to press the formed paper, and then the rewinding lower roller resumes its original speed. At the same time, high-pressure gas is introduced into the blowing hoods at both ends of the rewinding upper roller, and the high-pressure gas enters the air flow channel. The air holes connected to the air flow channel blow outward at the same time, so that the formed paper is blown off at the perforated line of the original paper. When the upper rewinding roller, the lower rewinding roller and the paper pressing roller are running at the same speed, the speed of the paper pressing roller and the speed of the lower rewinding roller are increased and the speed is reduced twice. The instantaneous speed reduction of the lower rewinding roller is to cooperate with the instantaneous speed increase of the paper pressing roller to break the paper, and the paper roll will leave the forming area with the fast paper pressing roller. On the other hand, the speeds of the paper pressing roller and the lower rewinding roller are higher than those of the upper rewinding roller. The paper sent out by the upper rewinding roller will be quickly taken back by the paper pressing roller and the lower rewinding roller. The secondary instantaneous speed reduction of the lower rewinding roller is to cooperate with the instantaneous speed increase of the paper pressing roller to break the paper and make the surface of the paper roll that has left the forming area in a compact state.

2. The paper breaking method of the multifunctional paper breaking mechanism of the coreless and cored rewinding machine according to claim 1, characterized in that: In combination with the three working modes, due to the influence of the tension of the original paper, when the tension of the paper is small, the rewinding paper feeding cloth roller and the original paper are in a pressed state, and the horizontal cylinder drives the rewinding paper feeding cloth roller to move forward, and the pressure of the rewinding paper feeding cloth roller on the lower front side of the rewinding lower roller is reduced, so that the tension of the original paper can be appropriately increased; when the tension of the original paper is large, the rewinding paper feeding cloth roller and the original paper are in a separated state, which does not affect the tension of the original paper, thereby realizing the error caused by the tension of the original paper to the paper break.

Images