Non-stop roll changing and unwinding unit

Abstract

The utility model relates to the technical field of non-stop roll changing and unwinding units, and discloses a non-stop roll changing and unwinding unit which comprises a rack body, a non-stop roll changing and unwinding unit protecting cover is fixedly installed on the left side of the rack body, and an unwinding driving mechanism is arranged in the non-stop roll changing and unwinding unit protecting cover. And an unwinding rotary table mechanism is arranged on the right side of the non-stop roll changing and unwinding unit protecting cover, a material receiving mechanism is arranged on the back of the unwinding rotary table mechanism, and an operation screen is arranged on the top of the rack body. And the double-faced adhesive tape with proper size and length is adhered to the joint of the paper roll to wait for the next automatic roll changing instruction, so that the roll changing and unwinding unit without shutdown is realized. The automatic roll changing machine has the advantages that time is saved, the roll changing function can be achieved without shutdown, manpower is saved, the direction of paper does not need to be manually guided again, the roll changing function without shutdown is achieved, the machine cost is indirectly reduced, more profits can be created by the machine capable of changing rolls within the same time without shutdown, and the market competitiveness is high.

Description

Technical Field

[0001] The utility model relates to the technical field of non-stop roll-changing and unwinding units, in particular to a non-stop roll-changing and unwinding unit. Background Art

[0002] At present, many machines can only stop to change rolls when changing rolls, and cannot change rolls without stopping the machine. However, stopping to change rolls has many disadvantages, such as:

[0003] 1. It wastes time because the entire production line needs to be stopped to complete the roll changing function.

[0004] 2. Waste of manpower. After stopping the machine to change the roll, it is necessary to manually redirect the direction of the paper.

[0005] 3. Indirectly increase the machine cost. For the same time, the machine that stops to change rolls will create less profit.

[0006] 4. Low market competitiveness.

[0007] Therefore, it is necessary to improve the roll changing and unwinding unit without stopping the machine to solve the above problems. Utility Model Content

[0008] The purpose of the present invention is to provide a roll-changing and unwinding unit without stopping the machine, so as to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned object, the utility model provides the following technical solutions: a non-stop roll-changing and unwinding unit comprises a frame body, a non-stop roll-changing and unwinding unit protective cover is fixedly installed on the left side of the frame body, an unwinding drive mechanism is arranged inside the non-stop roll-changing and unwinding unit protective cover, an unwinding turntable mechanism is arranged on the right side of the non-stop roll-changing and unwinding unit protective cover, a material receiving mechanism is arranged on the back of the unwinding turntable mechanism, and an operation screen is arranged on the top of the frame body;

[0010] The material receiving mechanism comprises a lower cutter material receiving part and an upper cutter material receiving part, and the lower cutter material receiving part is arranged at the bottom of the upper cutter material receiving part.

[0011] Preferably, the unwinding drive mechanism includes an inflatable shaft power motor, which is fixedly installed inside the non-stop reel-changing and unwinding unit cover, and the output end of the inflatable shaft power motor is installed with an inflatable shaft power synchronous belt through a transmission shaft. The back of the non-stop reel-changing and unwinding unit cover is provided with a front support shaft positioning assembly, the right inner wall of the non-stop reel-changing and unwinding unit cover is provided with a detection electric eye assembly, the right inner wall of the non-stop reel-changing and unwinding unit cover is provided with a reel-changing turntable positioning assembly, and the non-stop reel-changing and unwinding unit cover is fixedly installed with a reel-changing power motor, which provides power to the reel-changing turntable assembly.

[0012] Preferably, the unwinding turntable mechanism includes a rear support shaft positioning assembly, a conductive slip ring is arranged inside the rear support shaft positioning assembly, a rear support shaft is arranged on the left side of the conductive slip ring, a roll-changing turntable assembly is arranged on the left side of the rear support shaft, an operating side pneumatic shaft B adjustment member is arranged on the right side of the roll-changing turntable assembly, and a pneumatic shaft B is arranged at the output end of the operating side pneumatic shaft B adjustment member, an operating side pneumatic shaft A adjustment member is arranged on the right side of the roll-changing turntable assembly, and a pneumatic shaft A is arranged at the output end of the operating side pneumatic shaft A adjustment member, an aluminum guide roller assembly is arranged on the left side of the roll-changing turntable assembly, and a roll-changing turntable large gear disk is arranged at the end of the aluminum guide roller assembly away from the roll-changing turntable assembly, and the roll-changing turntable A front support shaft is provided on the left side of the large gear disc, and a large synchronous pulley driven by an inflatable shaft B is provided on the outside of the rear support shaft, and a transition sleeve of an inflatable shaft B driving a synchronous pulley is provided on the outside of the front support shaft, and an inflatable shaft A driving synchronous pulley is provided on the outside of the transition sleeve of the inflatable shaft B driving a synchronous pulley. The outer side of the inflatable shaft A driving synchronous pulley is installed with an inflatable shaft A driving synchronous belt, and the outer side of the inflatable shaft B driving a synchronous pulley transition sleeve is provided with a small synchronous pulley driven by an inflatable shaft B, and the outer side of the small synchronous pulley driven by the inflatable shaft B is installed with a synchronous belt driven by an inflatable shaft B. A paper roll detection electric eye is provided at the bottom of the aluminum guide roller assembly to fix the paper roll and can perform rotation and roll changing operations.

[0013] Preferably, the front support shaft is arranged inside the front support shaft positioning assembly, and the end of the pneumatic shaft power synchronous belt away from the transmission shaft is installed with the large synchronous pulley of the pneumatic shaft B. The pneumatic shaft A transmission synchronous pulley contains two connected synchronous pulleys, which transmit power to the pneumatic shaft A transmission synchronous belt, and transmit power to the pneumatic shaft B drive synchronous pulley transition sleeve.

[0014] Preferably, the driving side pneumatic shaft A adjusting part is installed on one end of the pneumatic shaft A transmission synchronous belt away from the driving side pneumatic shaft A transmission synchronous pulley, the pneumatic shaft A is arranged between the operating side pneumatic shaft A adjusting part and the driving side pneumatic shaft A adjusting part, the pneumatic shaft B is arranged between the driving side pneumatic shaft B adjusting part and the operating side pneumatic shaft B adjusting part, the operating side pneumatic shaft A adjusting part cooperates with the driving side pneumatic shaft A adjusting part to fix or lower the pneumatic shaft A, and the operating side pneumatic shaft B adjusting part cooperates with the driving side pneumatic shaft B adjusting part to fix or lower the pneumatic shaft B.

[0015] Preferably, the material receiving mechanism includes a material receiving frame, which is fixedly mounted on the back of the frame body, a lower cutter material receiving part adjustment member is provided on the left side of the material receiving frame, an upper cutter material receiving part adjustment member is provided on the left side of the material receiving frame, an anti-static device is provided on the front of the material receiving frame, an upper cutter material receiving part is provided on the back of the material receiving frame, and a lower cutter material receiving part is provided on the back of the material receiving frame. When changing the roll, the paper rolls are glued together and the paper on the paper roll that needs to be replaced is cut off.

[0016] Preferably, the material receiving part of the upper cutting knife includes an upper cutting knife. An upper cutting knife action component is arranged on the right side of the material receiving part of the upper cutting knife. A material receiving pressure roller is arranged inside the material receiving part of the lower cutting knife, which connects and cuts the papers of different paper rolls to realize the function of changing rolls without stopping the machine.

[0017] Preferably, the material receiving part of the lower cutting knife includes a lower cutting knife. A lower cutting knife action component is arranged outside the material receiving part of the lower cutting knife. An opposed photoelectric eye component is arranged outside the material receiving part of the lower cutting knife. A material receiving pressure roller action component is arranged outside the material receiving part of the lower cutting knife, which connects and cuts the papers of different paper rolls to realize the function of changing rolls without stopping the machine.

[0018] Preferably, the output end of the material receiving pressure roller action component is connected to the material receiving pressure roller, the output end of the upper cutting knife action component is connected to the upper cutting knife, and the output end of the lower cutting knife action component is connected to the lower cutting knife. When changing rolls, the papers from different paper rolls are pressed and fitted together, which is convenient for the upper cutting knife (lower cutting knife) to cut the paper.

[0019] Compared with the prior art, the present utility model provides a roll-changing and unwinding unit without stopping the machine, which has the following beneficial effects:

[0020] 1. For this roll-changing and unwinding unit without stopping the machine, during use, by means of the provided unwinding turntable mechanism, the cylinders of the operator side air shaft B adjusting part and the driving side air shaft B adjusting part are retracted to fix the air shaft B. After fixing the air shaft B, the joint of the paper roll is adhered with double-sided tape of appropriate size and length, and wait for the next automatic roll-changing instruction, thereby realizing the roll-changing and unwinding unit without stopping the machine. It saves time and can realize the function of changing rolls without stopping the machine, and saves manpower without the need for manual redirection of the paper path.

[0021] 2. For this roll-changing and unwinding unit without stopping the machine, during use, by means of the provided material receiving mechanism, when changing rolls, the papers from different paper rolls are pressed and fitted together by the material receiving pressure roller, which is convenient for the upper cutting knife (lower cutting knife) to cut the paper, connects and cuts the papers of different paper rolls to realize the function of changing rolls without stopping the machine, indirectly reducing the machine cost. In the same time, the machine that can change rolls without stopping can create more profits and has great market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0023] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0024] Figure 2 This is a schematic diagram of the back structure of the unwinding turntable mechanism of the present utility model;

[0025] Figure 3 This is a schematic diagram of the front structure of the unwinding turntable mechanism of the present utility model;

[0026] Figure 4 This is a schematic diagram of the back appearance structure of the unwinding turntable mechanism of the present utility model;

[0027] Figure 5 This is a schematic diagram of the conductive slip ring and its related structures of the present utility model;

[0028] Figure 6 This is a schematic diagram of the internal structure of the unwinding drive mechanism of the present utility model;

[0029] Figure 7 This is a schematic diagram of the front structure of the material receiving mechanism of the present utility model;

[0030] Figure 8 This is a schematic diagram of the back structure of the material receiving mechanism of the present utility model.

[0031] In the figure: 1. Frame body; 2. Cover of the non-stop roll change and unwinding unit; 3. Unwinding drive mechanism; 31. Air shaft power motor; 32. Air shaft power synchronous belt; 33. Front support shaft positioning component; 34. Detection photoelectric eye component; 35. Roll change turntable positioning component; 36. Roll change power motor; 4. Material receiving mechanism; 41. Material receiving frame; 42. Lower cutter material receiving part; 421. Material receiving pressure roller; 422. Lower cutter; 423. Lower cutter action component; 424. Opposite photoelectric eye component; 425. Material receiving pressure roller action component; 43. Lower cutter material receiving part adjuster; 44. Upper cutter material receiving part adjuster; 45. Electrostatic eliminator; 46. Upper cutter material receiving part; 461. Upper cutter; 462. Upper cutter action component; 5. Unwinding turntable mechanism; 51. Rear support shaft; 52. Operator side air shaft B adjuster; 53. Roll change turntable component; 54. Aluminum guide roller component; 55. Roll change turntable large gear disk; 56. Air shaft A; 57. Operator side air shaft A adjuster; 58. Air shaft A drive synchronous belt pulley; 59. Air shaft A drive synchronous belt; 510. Front support shaft; 511. Air shaft B drive large synchronous belt pulley; 512. Drive side air shaft B adjuster; 513. Air shaft B drive small synchronous belt pulley; 514. Air shaft B drive synchronous belt; 515. Air shaft B; 516. Paper roll detection photoelectric eye; 517. Air shaft B drive synchronous belt pulley transition sleeve; 518. Rear support shaft positioning component; 519. Conductive slip ring; 6. Operation screen. Detailed implementation manners

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] Example 1:

[0035] See also Figures 1-6 The utility model provides a technical solution: a non-stop roll-changing and unwinding unit, comprising a frame body 1, a non-stop roll-changing and unwinding unit protective cover 2 fixedly mounted on the left side of the frame body 1, an unwinding driving mechanism 3 arranged inside the non-stop roll-changing and unwinding unit protective cover 2, an unwinding turntable mechanism 5 arranged on the right side of the non-stop roll-changing and unwinding unit protective cover 2, a material receiving mechanism 4 arranged on the back of the unwinding turntable mechanism 5, and an operation screen 6 arranged on the top of the frame body 1;

[0036] The material receiving mechanism 4 includes a lower cutter material receiving portion 42 and an upper cutter material receiving portion 46 , and the lower cutter material receiving portion 42 is arranged at the bottom of the upper cutter material receiving portion 46 .

[0037] Furthermore, the unwinding drive mechanism 3 includes a pneumatic shaft power motor 31, which is fixedly installed inside the non-stop reel-changing and unwinding unit cover 2. The output end of the pneumatic shaft power motor 31 is installed with a pneumatic shaft power synchronous belt 32 through a transmission shaft. A front support shaft positioning assembly 33 is provided on the back of the non-stop reel-changing and unwinding unit cover 2, a detection electric eye assembly 34 is provided on the right inner wall of the non-stop reel-changing and unwinding unit cover 2, a reel-changing turntable positioning assembly 35 is provided on the right inner wall of the non-stop reel-changing and unwinding unit cover 2, and a reel-changing power motor 36 is fixedly installed inside the non-stop reel-changing and unwinding unit cover 2. The reel-changing power motor 36 provides power to the reel-changing turntable assembly.

[0038] Further, the unwinding turntable mechanism 5 includes a rear support shaft positioning component 518. A conductive slip ring 519 is arranged inside the rear support shaft positioning component 518. A rear support shaft 51 is arranged on the left side of the conductive slip ring 519. A roll-changing turntable component 53 is arranged on the left side of the rear support shaft 51. An operating side air shaft B adjusting component 52 is arranged on the right side of the roll-changing turntable component 53. An air shaft B 515 is arranged at the output end of the operating side air shaft B adjusting component 52. An operating side air shaft A adjusting component 57 is arranged on the right side of the roll-changing turntable component 53. An air shaft A 56 is arranged at the output end of the operating side air shaft A adjusting component 57. An aluminum guide roller component 54 is arranged on the left side of the roll-changing turntable component 53. A roll-changing turntable large gear disk 55 is arranged at one end of the aluminum guide roller component 54 away from the roll-changing turntable component 53. A front support shaft 510 is arranged on the left side of the roll-changing turntable large gear disk 55. An air shaft B driving large synchronous belt pulley 511 is arranged outside the rear support shaft 51. An air shaft B driving synchronous belt pulley transition sleeve 517 is arranged outside the front support shaft 510. An air shaft A driving synchronous belt pulley 58 is arranged outside the air shaft B driving synchronous belt pulley transition sleeve 517. An air shaft A driving synchronous belt 59 is installed outside the air shaft A driving synchronous belt pulley 58 in a transmission manner. An air shaft B driving small synchronous belt pulley 513 is arranged outside the air shaft B driving synchronous belt pulley transition sleeve 517. An air shaft B driving synchronous belt 514 is installed outside the air shaft B driving small synchronous belt pulley 513 in a transmission manner. A paper roll detection electric eye 516 is arranged at the bottom of the aluminum guide roller component 54 to fix the paper roll and can perform a rotating roll-changing operation.

[0039] Further, the front support shaft 510 is arranged inside a front support shaft positioning component 33. One end of the air shaft power synchronous belt 32 away from the transmission shaft is installed in a transmission manner with the air shaft B driving large synchronous belt pulley 511. The air shaft A driving synchronous belt pulley 58 contains two connected synchronous belt pulleys to transmit power to the air shaft A driving synchronous belt 59 and transmit power to the air shaft B driving synchronous belt pulley transition sleeve 517.

[0040] Further, one end of the air shaft A driving synchronous belt 59 away from the air shaft A driving synchronous belt pulley 58 is installed in a transmission manner with a driving side air shaft A adjusting component. The air shaft A 56 is arranged between the operating side air shaft A adjusting component 57 and the driving side air shaft A adjusting component. The air shaft B 515 is arranged between the driving side air shaft B adjusting component 512 and the operating side air shaft B adjusting component 52. The operating side air shaft A adjusting component 57 cooperates with the driving side air shaft A adjusting component to fix or lower the air shaft A 56. The operating side air shaft B adjusting component 52 cooperates with the driving side air shaft B adjusting component 512 to fix or lower the air shaft B 515.

[0041] Embodiment 2:

[0042] Please refer to Figures 7-8, and in combination with Embodiment 1, it is further obtained that the material receiving mechanism 4 includes a material receiving frame 41, the material receiving frame 41 is fixedly installed on the back of the frame body 1, a lower cutter material receiving part adjusting member 43 is arranged on the left side of the material receiving frame 41, an upper cutter material receiving part adjusting member 44 is arranged on the left side of the material receiving frame 41, an electrostatic eliminating device 45 is arranged on the front of the material receiving frame 41, an upper cutter material receiving part 46 is arranged on the back of the material receiving frame 41, and a lower cutter material receiving part 42 is arranged on the back of the material receiving frame 41. When changing the roll, the paper rolls are bonded together and the paper on the paper roll to be replaced is cut off.

[0043] Furthermore, the upper cutter material receiving part 46 includes an upper cutter 461, an upper cutter action component 462 is arranged on the right side of the upper cutter material receiving part 46, and a material receiving pressure roller 421 is arranged inside the lower cutter material receiving part 42. The paper of different paper rolls is connected and cut to realize the function of changing the roll without stopping the machine.

[0044] Furthermore, the lower cutter material receiving part 42 includes a lower cutter 422, a lower cutter action component 423 is arranged on the outside of the lower cutter material receiving part 42, a pair of photoelectric eyes component 424 is arranged on the outside of the lower cutter material receiving part 42, and a material receiving pressure roller action component 425 is arranged on the outside of the lower cutter material receiving part 42. The paper of different paper rolls is connected and cut to realize the function of changing the roll without stopping the machine.

[0045] Furthermore, the output end of the material receiving pressure roller action component 425 is connected to the material receiving pressure roller 421, the output end of the upper cutter action component 462 is connected to the upper cutter 461, and the output end of the lower cutter action component 423 is connected to the lower cutter 422. When changing the roll, the paper from two different paper rolls is pressed and adhered together to facilitate the upper cutter and the lower cutter to cut the paper.

[0046] During the actual operation process, when this device is in use, the non-stop roll-changing unwinding unit is controlled by the operation screen 6. The cylinders of the operator side air shaft A adjuster 57 and the drive side air shaft A adjuster lift up. The principle here is that the air shaft B515 drives the paper roll to run with the machine on the inner side. The paper roll on the air shaft A56 has been used up and needs to be replaced. Start by releasing the air shaft A56, installing a new paper roll on the air shaft A56, placing the air shaft A56 with the paper roll in the predetermined position, and using the operation screen 6 to control the cylinders of the operator side air shaft A adjuster 57 and the drive side air shaft A adjuster to retract, fixing the air shaft A56. After fixing the air shaft A56, stick double-sided tape of appropriate size and length at the joint of the paper roll. Wait until the paper roll detection photoelectric eye 516 detects that the diameter of the paper roll on the air shaft B515 reaches the set minimum value and detects that the diameter of the paper roll on the air shaft A56 is greater than the set minimum value. Then the roll-changing power motor 36 starts to rotate, driving the roll-changing turntable assembly 53 to rotate. The motor can be set to rotate forward or backward, and accordingly the roll-changing turntable assembly 53 will also rotate forward or backward. When the first detection photoelectric eye assembly 34 detects a signal, the roll-changing power motor 36 starts to decelerate and rotate slowly. When the second detection photoelectric eye assembly 34 detects a signal, the roll-changing power motor 36 stops running. At this time, the air shaft A56 stops at the loading position, and the air shaft power motor 31 responsible for driving the air shaft A56 starts to run, driving the air shaft A56 to start rotating. When the air shaft A56 reaches the set speed, the upper cutter receiving part adjuster 44 acts, moving the upper cutter receiving part 46 to the set pre-receiving position. Depending on the rotation direction of the roll-changing turntable assembly 53, the upper cutting part or the lower cutting part will be automatically selected. Here, it is described that the upper cutter receiving part 46 is used. The opposed photoelectric eye assembly 424 will detect the position of the double-sided tape pasted on the paper roll on the air shaft A56 before, and accurately give an instruction to control the receiving pressure roller 421 action assembly to act, lifting up the receiving pressure roller 421, and pasting the paper of the paper roll on the air shaft A56 with the double-sided tape to the paper of the paper roll on the air shaft B515. Then the upper cutter 461 action assembly acts, controlling the upper cutter 461 to cut off the paper of the paper roll on the air shaft B515. The air shaft power motor 31 responsible for driving the air shaft B515 stops running. At this time, the paper is completely supplied by the paper roll on the air shaft A56. Use the operation screen 6 to control the cylinders of the operator side air shaft B adjuster 52 and the drive side air shaft B adjuster 512 to lift up, release the air shaft B515, replace it with a new paper roll, and place the air shaft B515 with the paper roll in the predetermined position. Use the operation screen 6 to control the cylinders of the operator side air shaft B adjuster 52 and the drive side air shaft B adjuster 512 to retract, fixing the air shaft B515. After fixing the air shaft B515, stick double-sided tape of appropriate size and length at the joint of the paper roll, and wait for the next automatic roll-changing instruction, thus realizing the non-stop roll-changing unwinding unit.

[0047] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

Claims

1. Uninterrupted roll-changing unwind unit, including a frame body (1), characterized in that: A non-stop reel-changing and unwinding unit cover (2) is fixedly mounted on the left side of the frame body (1), an unwinding drive mechanism (3) is arranged inside the non-stop reel-changing and unwinding unit cover (2), an unwinding turntable mechanism (5) is arranged on the right side of the non-stop reel-changing and unwinding unit cover (2), a material receiving mechanism (4) is arranged on the back of the unwinding turntable mechanism (5), and an operation screen (6) is arranged on the top of the frame body (1); The material receiving mechanism (4) comprises a lower cutter material receiving part (42) and an upper cutter material receiving part (46), wherein the lower cutter material receiving part (42) is arranged at the bottom of the upper cutter material receiving part (46).

2. The unwind unit for non-stop roll change according to claim 1, wherein: The unwinding drive mechanism (3) comprises an air shaft power motor (31), the air shaft power motor (31) is fixedly mounted inside the non-stop reel-changing and unwinding unit protective cover (2), an air shaft power synchronous belt (32) is mounted on the output end of the air shaft power motor (31) through a transmission shaft, a front support shaft positioning assembly (33) is arranged on the back of the non-stop reel-changing and unwinding unit protective cover (2), a detection electric eye assembly (34) is arranged on the right inner wall of the non-stop reel-changing and unwinding unit protective cover (2), a reel-changing turntable positioning assembly (35) is arranged on the right inner wall of the non-stop reel-changing and unwinding unit protective cover (2), and a reel-changing power motor (36) is fixedly mounted inside the non-stop reel-changing and unwinding unit protective cover (2).

3. The unwind unit for non-stop roll change according to claim 2, characterized in that: The unwinding turntable mechanism (5) includes a rear support shaft positioning component (518). Inside the rear support shaft positioning component (518), there is a conductive slip ring (519). On the left side of the conductive slip ring (519), there is a rear support shaft (51). On the left side of the rear support shaft (51), there is a roll-changing turntable component (53). On the right side of the roll-changing turntable component (53), there is an operating side air shaft B adjusting part (52). At the output end of the operating side air shaft B adjusting part (52), there is an air shaft B (515). On the right side of the roll-changing turntable component (53), there is an operating side air shaft A adjusting part (57). At the output end of the operating side air shaft A adjusting part (57), there is an air shaft A (56). On the left side of the roll-changing turntable component (53), there is an aluminum guide roller component (54). At the end of the aluminum guide roller component (54) far from the roll-changing turntable component (53), there is a roll-changing turntable large gear disk (55). On the left side of the roll-changing turntable large gear disk (55), there is a front support shaft (510). Outside the rear support shaft (51), there is an air shaft B driving large synchronous belt pulley (511). Outside the front support shaft (510), there is an air shaft B driving synchronous belt pulley transition sleeve (517). Outside the air shaft B driving synchronous belt pulley transition sleeve (517), there is an air shaft A driving synchronous belt pulley (58). An air shaft A driving synchronous belt (59) is drivingly installed outside the air shaft A driving synchronous belt pulley (58). Outside the air shaft B driving synchronous belt pulley transition sleeve (517), there is an air shaft B driving small synchronous belt pulley (513). An air shaft B driving synchronous belt (514) is drivingly installed outside the air shaft B driving small synchronous belt pulley (513). At the bottom of the aluminum guide roller component (54), there is a paper roll detection electric eye (516).

4. The unwind unit for roll change without stopping according to claim 3, wherein: The front support shaft (510) is arranged inside the front support shaft positioning component (33). One end of the air shaft power synchronous belt (32) far from the transmission shaft is drivingly installed with the air shaft B driving large synchronous belt pulley (511). The air shaft A driving synchronous belt pulley (58) contains two connected synchronous belt pulleys to transmit power to the air shaft A driving synchronous belt (59).

5. The unwind unit for roll change without stopping according to claim 3, characterized in that: One end of the air shaft A driving synchronous belt (59) far from the air shaft A driving synchronous belt pulley (58) is drivingly installed with a driving side air shaft A adjusting part. The air shaft A (56) is arranged between the operating side air shaft A adjusting part (57) and the driving side air shaft A adjusting part. The air shaft B (515) is arranged between the driving side air shaft B adjusting part (512) and the operating side air shaft B adjusting part (52).

6. The unwind unit for changing rolls without stopping as claimed in claim 1, wherein: The material receiving mechanism (4) includes a material receiving frame (41), the material receiving frame (41) is fixedly installed on the back of the frame body (1), a lower cutter material receiving part adjusting member (43) is arranged on the left side of the material receiving frame (41), an upper cutter material receiving part adjusting member (44) is arranged on the left side of the material receiving frame (41), an electrostatic eliminating device (45) is arranged on the front of the material receiving frame (41), an upper cutter material receiving part (46) is arranged on the back of the material receiving frame (41), and a lower cutter material receiving part (42) is arranged on the back of the material receiving frame (41).

7. The unwind unit for roll change without stopping according to claim 6, characterized in that: The upper cutter material receiving part (46) includes an upper cutter (461), an upper cutter action component (462) is arranged on the right side of the upper cutter material receiving part (46), and a material receiving pressure roller (421) is arranged inside the lower cutter material receiving part (42).

8. The unwind unit for roll change without stopping according to claim 7, characterized in that: The lower cutter material receiving part (42) includes a lower cutter (422), a lower cutter action component (423) is arranged on the outside of the lower cutter material receiving part (42), an opposed photoelectric eye component (424) is arranged on the outside of the lower cutter material receiving part (42), and a material receiving pressure roller action component (425) is arranged on the outside of the lower cutter material receiving part (42).

9. The unwind unit for roll change without stopping according to claim 8, wherein: The output end of the material receiving pressure roller action component (425) is connected to the material receiving pressure roller (421), the output end of the upper cutter action component (462) is connected to the upper cutter (461), and the output end of the lower cutter action component (423) is connected to the lower cutter (422).

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