A paper roll feeding system automatic paper cutting device

Abstract

The utility model discloses a paper roll supply system automatic paper cutting device, including paper roll installation pivot and a plurality of guide roll, the paper roll is installed on the paper roll installation pivot, and the paper roll is wound on the guide roll, and the paper roll is formed paper roll supply path by the traction of guide roll, be equipped with paper roll exhaustion detection mechanism and paper cutting mechanism on the paper roll supply path, the paper roll exhaustion detection mechanism includes detection unit and position sensor, and the detection unit includes linear guide rail, lifting piece and movable roller, the paper cutting mechanism includes all installation paper pressing block, paper pressing cylinder and cutter cylinder on the machine plate, and the cutter cylinder is installed with cutter, the utility model discloses through setting up the paper roll exhaustion detection mechanism and the paper cutting mechanism on the paper roll supply path, utilizes the paper roll exhaustion detection mechanism real -time detection paper roll's exhaustion situation, after detecting the paper roll exhaustion, controls the paper cutting mechanism, and the paper roll of exhaustion is automatically cut off, and the foundation is laid for subsequent automatic change roll and follow -on feed.

Description

Technical Field

[0001] This utility model relates to the technical field of paper roll supply systems, and in particular to an automatic paper cutting device for a paper roll supply system. Background Technology

[0002] Battery separator paper is a key material in battery manufacturing. Its core function is to physically isolate the positive and negative electrodes of the battery, preventing direct contact between the two electrodes and thus preventing short circuits, thereby ensuring the battery's safety and electrochemical performance. In the production process of alkaline batteries, battery separator paper is usually stored in reels and automatically fed through a paper roll supply system. Specifically, the separator paper reel is mounted on a rotating shaft of the supply system and is drawn to the separator paper station by guide rollers. As the station continuously consumes separator paper, the reel is unwound, achieving continuous supply.

[0003] When the release liner on the spindle is depleted, the machine must be stopped to replace it with a new one. Currently, mainstream paper roll supply systems still rely on manual operation: workers observe the remaining amount on the rolls, manually remove the depleted rolls, and install new ones. This manual intervention method has limitations. Significant defects: 1. Low efficiency: Manual monitoring and replacement require frequent downtime, affecting production continuity. Especially in high-speed production lines, downtime directly impacts capacity. 2. High labor costs: Requires dedicated personnel, increasing labor input; 3. Risk of misjudgment: Manual observation may be delayed or misjudged, leading to paper supply interruption or material waste.

[0004] To improve automation levels, there is an urgent need to develop an intelligent supply system capable of automatically changing and reconnecting reels. The primary technical challenge in implementing this system lies in how to accurately and in real-time detect the depletion status of the release paper reel and, when the release paper reel is depleted, cut it off so that it can be removed, replaced, and reconnected with a new release paper reel. Utility Model Content

[0005] The purpose of this invention is to provide an automatic paper cutting device for a paper roll supply system.

[0006] The technical solution to achieve the purpose of this utility model is: an automatic paper cutting device for a paper roll supply system, including a machine plate, on which a paper roll mounting shaft and several guide rollers are mounted. A paper roll is mounted on the paper roll mounting shaft, and the paper roll is wound around the guide rollers and pulled by the guide rollers to form a paper roll supply path. A paper roll exhaustion detection mechanism and a paper cutting mechanism are provided on the paper roll supply path. The paper roll exhaustion detection mechanism includes a detection unit and a position sensor. The detection unit includes a linear guide rail, a lifting block, and a movable roller. The linear guide rail is vertically arranged and mounted on the machine plate. The lifting block is slidably mounted on the linear guide rail. The movable roller is mounted on the lifting block. The axis of the movable roller, the axis of the paper roll mounting shaft, and the axis of the guide roller are all parallel. The paper roll on the paper roll supply path is wound around the bottom of the movable roller. The position sensor is located on the side of the linear guide rail. The paper cutting mechanism includes a paper pressing block, a paper pressing cylinder, and a cutting cylinder, all mounted on the machine plate. The paper pressing block and the paper pressing cylinder are located on both sides of the paper roll supply path and are arranged opposite to each other. A cutting blade is mounted on the cutting cylinder. A cutting groove is opened on the paper pressing block. The cutting blade and the cutting groove are located on both sides of the paper roll supply path and are arranged opposite to each other. Along the paper roll supply path, the cutter cylinder is located between the paper roll mounting shaft and the paper pressing cylinder.

[0007] Furthermore, the linear guide rail includes a guide rod, which is vertically arranged, and the lifting block is slidably mounted on the guide rod. The linear guide rail can be a guide rail with a T-shaped cross-section, or it can be a guide rod or a guide groove. Compared with other types, guide rods are easier to source and install.

[0008] Furthermore, the lifting block is a bushing, which is movably fitted onto the guide rod.

[0009] Furthermore, the linear guide rail also includes a guide groove, which is vertically arranged. A roller is mounted on the lifting block, and the roller extends into the guide groove. After the paper roll on the paper roll mounting shaft is used up, the paper roll tightens, increasing the tension. The lifting block is pulled upwards, and the rising lifting block drives the roller, which rolls along the guide groove. The guide groove and roller, on the one hand, limit the lifting block by confining the roller within the guide groove, preventing the lifting block and its movable roller from rotating along the guide rod. The number of guide rods can be one or two. With the above arrangement, only one guide rod is needed, simplifying the guide rod arrangement. On the other hand, after the roller is mounted on the lifting block, the roller and the movable roller are located on opposite sides of the lifting block, allowing for more balanced force distribution on the lifting block. This avoids uneven force distribution on the lifting block when the movable roller is mounted on one side, which would affect the smoothness and stability of the lifting block's movement.

[0010] Furthermore, the roller and the movable roller are located on both sides of the lifting block, and the axis of the roller is coaxial with the axis of the movable roller.

[0011] Furthermore, a spring is fitted onto the guide rod, located below the lifting block. When the exhausted paper roll is removed, and the paper roll loses tension, the lifting block and its movable roller fall downwards. The spring cushions the fall of the lifting block, reducing the impact force and preventing damage to the lifting block and its movable roller due to excessive impact. The spring is mounted on the guide rod, allowing for stable deformation of the spring without adding other components or complicating the structure.

[0012] Furthermore, the movable roller is located on the paper roll supply path between the two guide rollers; along the paper roll supply path, the position of the movable roller is lower than the positions of the adjacent guide rollers on both sides. This arrangement increases the vertical component of the force exerted by the paper roll on the movable roller, while reducing the horizontal component. The vertical component is in the same direction as the lifting block and assists in the lifting block's ascent, while the horizontal component does not assist in the lifting block's ascent; on the contrary, it increases the friction between the lifting block and the linear guide rail, affecting the lifting block's ascent and creating resistance. This invention, by increasing the vertical component of the force exerted by the paper roll on the movable roller and reducing the horizontal component, increases the assistance for the lifting block's movement on the linear guide rail, reduces resistance, and makes the lifting block's movement on the linear guide rail smoother.

[0013] Furthermore, the paper roll supply path between the movable roller and its adjacent guide rollers is perpendicular. The horizontal projections of the movable roller and the guide rollers on both sides are tangent. This arrangement ensures that the horizontal component of the force exerted by the paper roll on the movable roller is zero, and the force exerted by the paper roll on the movable roller is entirely in the vertical direction, forming a pulling force. In other words, the force exerted by the paper roll on the movable roller only provides assistance and has no resistance, making the lifting block move more smoothly on the linear guide rail.

[0014] Furthermore, the number of detection units is two, and the two detection units are arranged horizontally. With this arrangement, the upward travel distance when the paper roll is exhausted is evenly distributed across the two detection units. That is, if only one detection unit is used and the upward displacement of the movable roller is D, then with two detection units, the upward displacement of each movable roller is D / 2. The upward displacement of the movable roller is smaller, and the installation height of the position sensor is also smaller. Thus, the overall height space required for installing the paper roll exhaustion detection mechanism is also smaller, greatly facilitating the installation and allowing for a more rational layout.

[0015] Furthermore, the position sensor is a contact sensor or a proximity sensor.

[0016] Furthermore, the paper-pressing block is located below the paper roll supply path. The paper-pressing cylinder and the cutting cylinder are located above the paper roll supply path. During paper cutting, the paper-pressing cylinder extends downward above the paper, pressing against the paper-pressing block to compress the paper. Then, the cutting cylinder extends downward above the paper, cutting the paper that is stretched taut on the paper roll at one end and pressed down by the paper-pressing cylinder at the other end, thus severing the paper. When the paper-pressing cylinder and the cutting cylinder are located above the paper roll supply path, the paper-pressing and cutting operations are clearer.

[0017] Furthermore, a silicone plate is installed on the end of the telescopic rod of the paper-pressing cylinder. When the paper-pressing cylinder extends to press the paper, the silicone plate comes into contact with the paper. The silicone plate increases the friction between the paper and the silicone plate, making the paper pressing more reliable.

[0018] Furthermore, along the paper roll supply path, a pneumatic finger is also provided between the paper roll mounting shaft and the cutter cylinder. The paper roll supply path passes through the pneumatic finger, so when cutting the paper, one end of the paper can be directly tightened by the paper roll, or the pneumatic finger can be activated to clamp it. Under the clamping of the pneumatic finger, the tightening of both ends of the paper is more reliable.

[0019] Furthermore, along the paper roll supply path, the paper cutting mechanism is located between the paper roll mounting shaft and the paper roll depletion detection mechanism. The paper cutting mechanism cuts the paper at the front end of the paper roll depletion detection mechanism. When a new paper roll is inserted for reconnection, the paper does not need to be re-threaded on the paper roll depletion detection mechanism, which greatly facilitates the replacement and reconnection of paper rolls.

[0020] This utility model relates to an automatic paper cutting device for a paper roll supply system. By setting the paper roll depletion detection mechanism and the paper cutting mechanism on the paper roll supply path, the paper roll depletion detection mechanism detects the depletion status of the paper roll in real time. After detecting that the paper roll is depleted, the paper cutting mechanism is controlled to automatically cut the depleted paper roll, laying the foundation for subsequent automatic roll changing and continuous feeding. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the automatic paper cutting device of the paper roll supply system of this utility model; Figure 2 This is a schematic diagram of the main structure of the automatic paper cutting device of the paper roll supply system of this utility model; Figure 3 This is a schematic diagram of the paper roll exhaustion detection mechanism of the automatic paper cutting device in the paper roll supply system of this utility model; Figure 4This is a schematic diagram of the paper cutting mechanism of the automatic paper cutting device of the paper roll supply system of this utility model. Detailed Implementation

[0022] The preferred embodiment of the automatic paper cutting device of the paper roll supply system of this utility model will be described in detail below with reference to the accompanying drawings: like Figure 1 to Figure 4 As shown, an automatic paper cutting device for a paper roll supply system includes a machine plate 10, on which a paper roll mounting shaft 1 and several guide rollers 2 are mounted. A paper roll 100 is mounted on the paper roll mounting shaft 1, and the paper roll 100 is wound around the guide rollers 2 and pulled by the guide rollers 2 to form a paper roll supply path 101. A paper roll exhaustion detection mechanism 3 and a paper cutting mechanism 4 are provided on the paper roll supply path 101. The paper roll exhaustion detection mechanism 3 includes a detection unit 30 and a position sensor 34. The detection unit 30 includes a linear guide rail 31, a lifting block 32, and a movable roller 33. The linear guide rail 31 is vertically arranged and installed on the machine plate 10. The lifting block 32 is slidably installed on the linear guide rail 31. The movable roller 33 is installed on the lifting block 32. The axis of the movable roller 33, the axis of the paper roll mounting shaft 1, and the axis of the guide roller 2 are all parallel. The paper roll 100 on the paper roll supply path 101 is wound around the bottom of the movable roller 33. The position sensor 34 is located on the side of the linear guide rail 31. The paper cutting mechanism 4 includes a paper pressing block 41, a paper pressing cylinder 42, and a cutting cylinder 43, all mounted on the machine plate 10. The paper pressing block 41 and the paper pressing cylinder 42 are located on both sides of the paper roll supply path 101 and are arranged opposite to each other. A cutting blade 44 is mounted on the cutting cylinder 43. A cutting groove 411 is formed on the paper pressing block 41. The cutting blade 44 and the cutting groove 411 are located on both sides of the paper roll supply path 101 and are arranged opposite to each other. Along the paper roll supply path 101, the cutting cylinder 43 is located between the paper roll mounting shaft 1 and the paper pressing cylinder 42.

[0023] This utility model relates to an automatic paper cutting device for a paper roll supply system. The paper roll mounting shaft 1 is used to mount a paper roll 100. The guide roller 2 is used to pull the paper roll 100. The paper roll exhaustion detection mechanism 3 is used to detect whether the paper roll 100 mounted on the paper roll mounting shaft 1 is exhausted. In the paper roll exhaustion detection mechanism 3, the lifting block 32 is slidably mounted on the linear guide rail 31 and can move up and down along the linear guide rail 31; the paper roll 100 on the paper roll supply path 101 passes under the movable roller 33 and is wound around the bottom of the movable roller 33, which is linked with the paper roll 100; the position sensor 34 is used to sense the position signal of the lifting block 32. The paper cutting mechanism 4 is used to cut the paper. In the paper cutting mechanism 4, the paper pressing block 41 is located on the extension path of the paper pressing cylinder 42, and the paper pressing block 41 cooperates with the paper pressing cylinder 42 to clamp the paper; the cutter 44 is installed on the cutter cylinder 43 to cut the paper; the knife groove 411 is located on the moving path of the cutter 44, and the knife groove 411 is used to make way for the cutting action of the cutter 44.

[0024] The automatic paper cutting device of the paper roll supply system of this utility model has a paper roll 100 installed on the paper roll mounting shaft 1 and pulled to the isolation paper station by the guide roller 2. As the isolation paper is continuously consumed at the station, the paper roll 100 is unwound to achieve continuous supply.

[0025] This utility model relates to an automatic paper cutting device for a paper roll supply system. When the paper roll 100 is exhausted, it is tightened, and the tension gradually increases. As the paper roll 100 is tightened, the movable roller 33 of the paper roll exhaustion detection mechanism 3 is pulled upward, causing the lifting block 32 to move upward along the linear guide rail 31. The upward movement of the lifting block 32 triggers the position sensor 34. Once the position sensor 34 senses the upward movement of the lifting block 32, it indicates that the paper roll is exhausted, thus achieving automatic detection of paper roll exhaustion.

[0026] In this utility model, the automatic paper cutting device of the paper roll supply system detects that the paper roll is exhausted. The paper pressing cylinder 42 of the paper cutting mechanism 4 is activated, extends and presses against the paper pressing block 41, pressing the paper between the paper pressing block 41 and the paper pressing cylinder 42. Then the cutting cylinder 43 extends, driving the cutting blade 44 to extend into the blade groove 411 to cut the paper.

[0027] The automatic paper cutting device of this utility model paper roll supply system sets up the paper roll exhaustion detection mechanism 3 and the paper cutting mechanism 4 on the paper roll supply path 101. The paper roll exhaustion detection mechanism 3 detects the exhaustion of the paper roll in real time. After the paper roll is exhausted, the paper cutting mechanism 4 is controlled to automatically cut the exhausted paper roll, laying the foundation for subsequent automatic roll changing and continuous feeding.

[0028] In this utility model, the automatic paper cutting device for a paper roll supply system preferably includes a linear guide rail 31 comprising a guide rod 311, which is vertically arranged, and a lifting block 32 slidably mounted on the guide rod 311. The linear guide rail 31 can be a T-shaped cross-section guide rail, a guide rod, or a guide groove. Compared to other types, guide rods are easier to source and install.

[0029] In the automatic paper cutting device of the paper roll supply system of this utility model, preferably, the lifting block 32 is a bushing, and the bushing is movably mounted on the guide rod 311.

[0030] In this utility model, an automatic paper cutting device for a paper roll supply system preferably includes a guide groove 312 further comprising a linear guide rail 31. The guide groove 312 is vertically arranged, and a roller 321 is mounted on the lifting block 32, extending into the guide groove 312. After the paper roll 100 on the paper roll mounting shaft 1 is used up, the paper roll 100 tightens, increasing the tension. The lifting block 32 is pulled upward, and the rising lifting block 32 drives the roller 321, which rolls along the guide groove 312. The guide groove 312 and the roller 321, on the one hand, limit the lifting block 32 by confining the roller 321 within the guide groove 312, thereby preventing the lifting block 32 and its movable roller 33 from rotating along the guide rod 311. The guide rod 311 can be one or two. After the above settings are implemented, the number of guide rods 311 can be reduced to one, simplifying the arrangement of the guide rods 311. On the other hand, after the roller 321 is installed on the lifting block 32, the roller 321 and the movable roller 33 are located on opposite sides of the lifting block 32, allowing for a more balanced force distribution on the lifting block 32. This avoids the situation where the movable roller 33 is installed on one side of the lifting block 32, resulting in uneven force distribution and affecting the smoothness and stability of the lifting block 32's movement.

[0031] In the automatic paper cutting device of the paper roll supply system of this utility model, preferably, the roller 321 and the movable roller 33 are located on both sides of the lifting block 32, and the axis of the roller 321 is coaxial with the axis of the movable roller 33.

[0032] In this utility model, an automatic paper cutting device for a paper roll supply system preferably includes a spring 35 mounted on the guide rod 311, located below the lifting block 32. When the exhausted paper roll is removed, and the paper roll loses tension, the lifting block 32 and its movable roller 33 fall downwards. The spring 35 cushions the fall of the lifting block 32, reducing its impact and preventing damage to the lifting block 32 and its movable roller 33 due to excessive impact. The spring 35 is mounted on the guide rod 311, guiding the deformation of the spring 35 without adding other components or complicating the structure. This ensures stable deformation of the spring 35 without increasing structural complexity.

[0033] In this invention, the automatic paper cutting device for a paper roll supply system preferably has the movable roller 33 located on the paper roll supply path 101 between the two guide rollers 2. Along the paper roll supply path 101, the position of the movable roller 33 is lower than the positions of the adjacent guide rollers 2 on both sides. This arrangement increases the vertical component of the force exerted by the paper roll on the movable roller 33, while reducing the horizontal component. The vertical component is in the same direction as the lifting block 32, assisting in the upward movement of the lifting block 32. However, the horizontal component does not assist in the upward movement of the lifting block 32; on the contrary, it increases the friction between the lifting block 32 and the linear guide rail 31, affecting the upward movement of the lifting block 32 and creating resistance to its ascent. This invention increases the vertical component of the force exerted by the paper roll on the movable roller 33 while reducing the horizontal component, thereby increasing the assistance of the lifting block 32 in moving on the linear guide rail 31, reducing resistance, and making the movement of the lifting block 32 on the linear guide rail 31 smoother.

[0034] In this invention, the automatic paper cutting device for a paper roll supply system preferably has the movable roller 33 perpendicular to the paper roll supply path 101 between it and its adjacent guide rollers 2. The movable roller 33 and the horizontal projections of its two adjacent guide rollers 2 are tangent. This arrangement ensures that the horizontal component of the force exerted by the paper roll on the movable roller 33 is zero, and the force exerted by the paper roll on the movable roller 33 is entirely vertical, forming a pulling force. In other words, the force exerted by the paper roll on the movable roller 33 only provides assistance and no resistance, making the lifting block 32 move more smoothly on the linear guide rail 31.

[0035] In this utility model, the automatic paper cutting device for a paper roll supply system preferably includes two detection units 30 arranged horizontally. With this arrangement, the upward travel distance when the paper roll is exhausted is evenly distributed across the two detection units 30. That is, if only one detection unit 30 is used and the upward displacement of the movable roller 33 is D, then with two detection units 30, the upward displacement of each movable roller 33 is D / 2. This smaller upward displacement of the movable roller 33 also reduces the installation height of the position sensor 34. Consequently, the overall height space required for installing the paper roll exhaustion detection mechanism 3 is also smaller, greatly facilitating its installation and allowing for a more rational layout.

[0036] The automatic paper cutting device of the paper roll supply system of this utility model is a contact sensor or a proximity sensor.

[0037] In this invention, the automatic paper cutting device for a paper roll supply system preferably has the paper pressing block 41 located below the paper roll supply path 101. The paper pressing cylinder 42 and the cutting cylinder 43 are located above the paper roll supply path 101. During paper cutting, the paper pressing cylinder 42 extends downward above the paper, pressing against the paper pressing block 41 to compress the paper. Then, the cutting cylinder 43 extends downward above the paper to cut the paper, which is stretched taut on the paper roll 100 at one end and pressed down by the paper pressing cylinder 42 at the other end. When the paper pressing cylinder 42 and the cutting cylinder 43 are located above the paper roll supply path 101, the paper pressing and cutting operations are clearer.

[0038] In the automatic paper cutting device of the paper roll supply system of this utility model, a silicone plate 421 is preferably installed on the end of the telescopic rod of the paper pressing cylinder 42. When the paper pressing cylinder 42 extends to press the paper, the silicone plate 421 contacts the paper. The silicone plate 421 increases the friction between the silicone plate and the paper, making the paper pressing more reliable.

[0039] The automatic paper cutting device of this utility model paper roll supply system preferably includes pneumatic fingers 45 between the paper roll mounting shaft 1 and the cutter cylinder 43 along the paper roll supply path 101. The paper roll supply path 101 passes through the pneumatic fingers 45. During paper cutting, one end of the paper can be directly tightened by the paper roll 100, or the pneumatic fingers 45 can be activated to clamp the paper. Under the clamping of the pneumatic fingers 45, the tightening of both ends of the paper is more reliable.

[0040] The automatic paper cutting device of this utility model paper roll supply system is preferably located between the paper roll mounting shaft 1 and the paper roll depletion detection mechanism 3 along the paper roll supply path 101. The paper cutting mechanism 4 cuts the paper at the front end of the paper roll depletion detection mechanism 3. When a new paper roll is added for reconnection, the paper does not need to be re-threaded on the paper roll depletion detection mechanism 3, which greatly facilitates the replacement and reconnection of paper rolls.

[0041] For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model, and all such deductions or substitutions should be considered to fall within the protection scope of this utility model.

Claims

1. An automatic paper cutting device for a paper roll supply system, comprising a machine plate, wherein a paper roll mounting shaft and a plurality of guide rollers are mounted on the machine plate, a paper roll is mounted on the paper roll mounting shaft, the paper roll is wound around the guide rollers and pulled by the guide rollers to form a paper roll supply path, characterized in that: The paper roll supply path is equipped with a paper roll exhaustion detection mechanism and a paper cutting mechanism; The paper roll exhaustion detection mechanism includes a detection unit and a position sensor. The detection unit includes a linear guide rail, a lifting block, and a movable roller. The linear guide rail is vertically arranged and mounted on the machine plate. The lifting block is slidably mounted on the linear guide rail. The movable roller is mounted on the lifting block. The axis of the movable roller, the axis of the paper roll mounting shaft, and the axis of the guide roller are all parallel. The paper roll on the paper roll supply path is wound around the bottom of the movable roller. The sensor is positioned to the side of the linear guide rail; The paper cutting mechanism includes a paper pressing block, a paper pressing cylinder, and a cutting cylinder, all mounted on the machine plate. The paper pressing block and the paper pressing cylinder are located on both sides of the paper roll supply path and are arranged opposite to each other. A cutting blade is mounted on the cutting cylinder. A cutting groove is opened on the paper pressing block. The cutting blade and the cutting groove are located on both sides of the paper roll supply path and are arranged opposite to each other. Along the paper roll supply path, the cutter cylinder is located between the paper roll mounting shaft and the paper pressing cylinder.

2. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: The linear guide rail includes a guide rod, which is vertically arranged, and the lifting block is slidably mounted on the guide rod.

3. The automatic paper cutting device for the paper roll supply system according to claim 2, characterized in that: The linear guide rail also includes a guide groove, which is vertically arranged, and a roller is installed on the lifting block, with the roller extending into the guide groove.

4. The automatic paper cutting device for the paper roll supply system according to claim 2, characterized in that: A spring is fitted onto the guide rod, and the spring is located below the lifting block.

5. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: The movable roller is located on the paper roll supply path between the two guide rollers; along the paper roll supply path, the position of the movable roller is lower than the positions of the two adjacent guide rollers; the movable roller is perpendicular to the paper roll supply path between its adjacent guide rollers.

6. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: The number of detection units is two, and the two detection units are arranged horizontally; the position sensor is a contact sensor or a proximity sensor.

7. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: The paper pressing block is located below the paper roll supply path.

8. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: A silicone plate is installed on the end of the telescopic rod of the paper pressing cylinder.

9. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: Along the paper roll supply path, a pneumatic finger is also provided between the paper roll mounting shaft and the cutter cylinder.

10. The automatic paper cutting device for the paper roll supply system according to claim 1, characterized in that: Along the paper roll supply path, the paper cutting mechanism is located between the paper roll mounting shaft and the paper roll depletion detection mechanism.

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