Slitting device for toilet paper production

Abstract

The invention provides a cutting device for toilet paper production, which is applied to the technical field of toilet paper cutting devices and is characterized by comprising a rack, and a material roll is detachably mounted on the rack; the conveying roller group is used for conveying toilet paper tapes on the material roll; the roll dividing mechanism is used for dividing and winding toilet paper tapes on paper tubes and comprises a first roll dividing roller, a second roll dividing roller, a roll dividing driving assembly and a contact roller; the jacking assembly is used for pushing the paper rolls obtained after roll dividing is completed forwards. Air suction holes which are connected with external negative pressure equipment and are used for adsorbing the toilet paper tape so as to enable the toilet paper tape between the second shunt winding roller and the datum plate to be in a tensioned state are formed in the second shunt winding roller and the datum plate; the cutting mechanism is used for cutting the tensioned toilet paper tape by taking one side of the datum plate as a datum; the winding mechanism is used for driving the cut paper roll to rotate so as to wind the stub bar; the paper cutting device has the technical effect that the problem of wrinkles during cutting due to paper looseness in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of toilet paper cutting device technology, and in particular to a cutting device for toilet paper production. Background Technology

[0002] In the production of toilet paper, it is usually completed through automated production lines. One of the core processes is to quantitatively roll wide rolls of toilet paper raw materials onto paper tubes to form individual toilet paper rolls. After this quantitative rolling process is completed, the continuous toilet paper strip needs to be cut by a cutting device to complete the formation of individual paper rolls. Currently, toilet paper production lines in existing technology generally adopt the direct cutting method; that is, after the rolls reach the predetermined length, the cutting blade directly cuts the toilet paper strip that is in a continuous conveying state.

[0003] However, at the moment the cutting action occurs, the cut toilet paper strip will immediately be in a relaxed state due to the loss of subsequent traction tension. This relaxed state will cause the paper to spring back, shake, or slightly shift, resulting in dense wrinkles at the cut point. This will affect the subsequent sealing effect of the paper roll (i.e., using glue to bond the outermost end of the paper roll to prevent it from loosening). Poor sealing effect will easily cause the paper roll to loosen. Summary of the Invention

[0004] The purpose of this invention is to provide a cutting device for toilet paper production, which has the advantage of avoiding paper loosening and wrinkling during cutting, thereby improving the production quality of paper rolls.

[0005] To achieve the above and other related objectives, the present invention provides the following technical solution:

[0006] A cutting device for toilet paper production includes a frame.

[0007] A material roll, which is detachably mounted on the frame;

[0008] A conveyor roller assembly, which is mounted on the frame and used to convey the toilet paper strip on the roll;

[0009] The slitting mechanism is used to slit toilet paper strips onto a paper tube. The slitting mechanism includes a first slitting roller and a second slitting roller that are horizontally arranged and rotatably arranged on the frame, a slitting drive assembly that drives the first slitting roller and the second slitting roller to rotate synchronously and in the same direction, and a contact roller that is movably arranged on the frame and located above the first slitting roller and the second slitting roller. The paper tube is fed between the first slitting roller and the second slitting roller, and the contact roller rests on the paper tube. The first slitting roller and the second slitting roller drive the paper tube and the contact roller to rotate through friction, and the toilet paper strip is wound around the paper tube during the rotation.

[0010] A lifting assembly is disposed between a first slitting roller and a second slitting roller and is used to push the slitting paper roll forward.

[0011] A reference plate is fixedly mounted on the frame; the second slitting roller is located near the reference plate, and both the second slitting roller and the reference plate are provided with suction holes that are connected to an external negative pressure device and are used to absorb toilet paper strips so that the toilet paper strips located between the second slitting roller and the reference plate are in a taut state.

[0012] A cutting mechanism is mounted on a frame between the second splitting roller and a reference plate, and uses one side of the reference plate as a reference to cut the tensioned toilet paper strip;

[0013] A winding mechanism is used to drive the slit paper roll to rotate so that the paper head is wound up.

[0014] In one embodiment of the present invention, a feeding mechanism is further included, which is disposed on the frame and is used for automatically feeding paper tubes. The feeding mechanism includes a storage trough that is inclinedly disposed on the frame, a feeding trough that is connected to the storage trough and slidably disposed on the frame, and a feeding drive assembly disposed on the frame and driving the feeding trough to slide.

[0015] In one embodiment of the present invention, a baffle is hinged to one side of the discharge port of the storage tank, and a storage cylinder with one end of its piston rod hinged to the baffle is hinged to the storage tank.

[0016] In one embodiment of the present invention, a limiting frame for stacking paper tubes in a single row is fixedly provided on the feeding trough, and a blocking cylinder is provided on one side of the discharge port of the feeding trough. The blocking cylinder is vertically fixed on the limiting frame, and a buffer block is fixedly provided on the piston rod of the blocking cylinder.

[0017] In one embodiment of the present invention, a connecting frame and a connecting cylinder are hinged to both sides of the frame, the piston rod of the connecting cylinder is hinged to the connecting frame, and both ends of the contact roller are rotatably connected to the connecting frame.

[0018] In one embodiment of the present invention, the lifting assembly includes a lifting cylinder fixed to the bottom of the frame and a lifting rod fixed to the lifting cylinder, the lifting rod being located between two slitting rollers; the top of the lifting rod is inclined.

[0019] In one embodiment of the present invention, the second slitting roller includes an inner cylinder rotatably mounted on a frame, an anti-slip sleeve fitted on the inner cylinder, and an air inlet that is dynamically sealed to the inner cylinder and connected to an external negative pressure device.

[0020] An air chamber is provided in the middle of the inner cylinder, and the air intake holes are evenly distributed on the inner cylinder and the anti-slip sleeve and are in communication with the air chamber.

[0021] In one embodiment of the present invention, the slitting drive assembly includes a slitting motor fixed on the frame, a drive sprocket fixedly connected to the output shaft of the slitting motor, two driven sprockets respectively fixed on the first slitting roller and the second slitting roller, and a chain sleeved on the drive sprocket and the two driven sprockets.

[0022] In one embodiment of the present invention, the cutting mechanism includes a cutting frame fixedly mounted on a frame, a blade holder slidably mounted on the cutting frame, a cutting blade rotatably mounted on the blade holder, and a cutting drive assembly that drives the cutting blade to reciprocate about one side of a reference plate.

[0023] In one embodiment of the present invention, the winding mechanism includes a winding roller rotatably mounted on a frame and a winding drive assembly for driving the winding roller to rotate.

[0024] As described above, the cutting device for toilet paper production of the present invention has the following beneficial effects:

[0025] The roll is detachably mounted on the frame for easy replacement; the conveyor roller assembly is used to convey the toilet paper strip on the roll; the feeding drive assembly is used to drive the feeding trough to slide, thereby facilitating the feeding of the paper tube between the first and second slitting rollers, and the first and second slitting rollers rotate, driving the paper tube and the contact roller to rotate through friction, during which the toilet paper strip is wound around the paper tube; the lifting assembly is used to push the slitting paper roll forward to the winding mechanism, at which time the paper roll is still connected to the toilet paper strip, and the second slitting roller and the reference plate are provided with suction holes, through the suction of the suction holes, the toilet paper strip located between the second slitting roller and the reference plate is in a taut state; thus, when the cutting mechanism cuts the toilet paper strip, it can minimize vibration and avoid wrinkles caused by paper looseness during cutting, thereby improving the production quality of the paper roll; after the paper roll and toilet paper strip are cut, the winding mechanism drives the paper roll to rotate again, thereby winding the material head. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention from the left side view;

[0027] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention from a frontal view;

[0028] Figure 3 This is a schematic diagram of the splitting process according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the segmentation process according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the winding mechanism according to an embodiment of the present invention;

[0031] Figure 6 yes Figure 5 Enlarged diagram of part A in the middle;

[0032] Figure 7 This is a schematic diagram of the feeding mechanism according to an embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the slitting mechanism according to an embodiment of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the second slitting roller according to an embodiment of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of the reference plate in an embodiment of the present invention.

[0036] Reference numerals: 1. Frame; 2. Inclined mounting plate; 3. Material roll; 31. Toilet paper tape; 32. Paper tube; 33. Paper roll; 4. Conveyor roller assembly; 5. Feeding mechanism; 51. Storage trough; 52. Feeding trough; 53. Feeding drive assembly; 54. Baffle; 55. Storage cylinder; 56. Limiting frame; 57. Blocking cylinder; 58. Buffer block; 6. Separating mechanism; 61. First separating roller; 62. Second separating roller; 621. Inner tube ; 622, Anti-slip sleeve; 623, Air inlet; 63, Sliding drive assembly; 64, Contact roller; 65, Connecting frame; 66, Connecting cylinder; 7, Lifting assembly; 71, Lifting cylinder; 72, Lifting rod; 8, Base plate; 81, Air suction hole; 9, Slitting mechanism; 91, Cutting frame; 92, Knife holder; 93, Cutting disc; 94, Cutting drive assembly; 10, Rewinding mechanism; 101, Rewinding roller; 102, Rewinding drive assembly. Detailed Implementation

[0037] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0038] Please see Figures 1 to 10It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0039] Example 1

[0040] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a slitting device for toilet paper production, including a frame 1, a roll 3, a conveying roller group 4, a slitting mechanism 6, a lifting assembly 7, a reference plate 8, a slitting mechanism 9, and a winding mechanism 10;

[0041] The frame 1 is the supporting structure for the entire device; the material roll 3 can be installed on the frame 1 through the detachable structure of the air shaft, which makes it easy to replace the exhausted material roll 3.

[0042] The conveyor roller group 4 consists of multiple rollers arranged at a certain interval and is rotatably mounted on the frame 1. It is used to smoothly pull the toilet paper strip 31 on the roll 3 and convey it to the slitting mechanism 6.

[0043] Please see Figure 5 and Figure 6 The slitting mechanism 6 is used to slit the toilet paper strip 31 onto the paper tube 32. The slitting mechanism 6 includes a first slitting roller 61 and a second slitting roller 62 that are horizontally arranged and rotatably arranged on the frame 1 via bearing seats, a slitting drive assembly 63 that drives the first slitting roller 61 and the second slitting roller 62 to rotate synchronously and in the same direction, and a contact roller 64 that is movably arranged on the frame 1 and located above and between the first slitting roller 61 and the second slitting roller 62.

[0044] The slitting drive assembly 63 includes a slitting motor fixedly mounted on the frame 1, a drive sprocket fixedly connected to the output shaft of the slitting motor, two driven sprockets respectively fixed to one end of the first slitting roller 61 and the second slitting roller 62, and a chain sleeved on the drive sprocket and the two driven sprockets; the two slitting rollers can be driven to rotate synchronously by a single motor, which has a simple structure and reliable transmission.

[0045] Both sides of the frame 1 are hinged with connecting frames 65 and connecting cylinders 66. The two ends of the contact roller 64 are rotatably connected to the corresponding connecting frames 65 through bearings. The cylinder body of the connecting cylinder 66 is hinged to the frame 1, and the end of its piston rod is hinged to the connecting frame 65. By controlling the extension and retraction of the connecting cylinder 66, the contact roller 64 can be raised and lowered, thereby adapting to the continuous increase in diameter of the paper roll 33 during the slitting process and always maintaining appropriate contact pressure.

[0046] The paper tube 32 is fed into the V-shaped area between the first slitting roller 61 and the second slitting roller 62. The contact roller 64 moves downward under the drive of the connecting cylinder 66 and rests on the upper surface of the paper tube 32. When the slitting drive assembly 63 is working, the first slitting roller 61 and the second slitting roller 62 jointly drive the paper tube 32 to rotate through friction. The contact roller 64 rotates passively and presses the starting end of the toilet paper strip 31 onto the paper tube 32 during the rotation, forming a paper roll 33.

[0047] Please see Figure 5 and Figure 10 The reference plate 8 is fixedly mounted on the frame 1 and located on one side of the second slitting roller 62. Both the second slitting roller 62 and the reference plate 8 are provided with suction holes 81 that are connected to external negative pressure equipment (such as a vacuum generator or vacuum pump). In this embodiment, the reference plate 8 is provided with an air chamber in the middle. An air inlet 623 is fixedly mounted on the reference plate 8 with one end connected to the external negative pressure equipment and the other end connected to the air chamber. The suction holes 81 are evenly arranged on the upper surface of the reference plate 8 and connected to the air chamber.

[0048] Please see Figure 9 The second slitting roller 62 includes an inner cylinder 621 rotatably mounted on the frame 1, an anti-slip sleeve 622 sleeved on the outside of the inner cylinder 621, and an air inlet 623 dynamically sealed to the inner cylinder 621 via a rotary joint and connected to an external negative pressure device. An air chamber is also provided inside the inner cylinder 621. Several suction holes 81 are evenly provided on the circumferential surface of the second slitting roller 62. The suction holes 81 penetrate the inner cylinder 621 and the anti-slip sleeve 622 and communicate with the air chamber. In addition, the first slitting roller 61 and the contact roller 64 in this embodiment are also sleeved with anti-slip sleeves 622, thereby increasing the friction with the toilet paper strip 31 and facilitating the slitting of the toilet paper strip 31.

[0049] Please see Figure 3 and Figure 4The lifting assembly 7 is located below the first slitting roller 61 and the second slitting roller 62, and is used to push the slitting paper roll 33 forward. The lifting assembly 7 includes a lifting cylinder 71 fixed to the bottom of the frame 1 and a lifting rod 72 fixed to the piston rod of the lifting cylinder 71. The top of the lifting rod 72 is preferably designed as a slope so that when the paper roll 33 is lifted, it can be smoothly lifted out from between the first slitting roller 61 and the second slitting roller 62 and guided to roll forward to the winding mechanism 10.

[0050] When the paper roll 33 is slit and slightly lifted and pushed forward by the lifting component 7, the toilet paper strip 31 is still connected between the material roll 3 and the paper roll 33, and passes over the upper surface of the second slitting roller 62 and the upper surface of the reference plate 8. At this time, the external negative pressure device is activated, and the suction hole 81 on the second slitting roller 62 will attract the toilet paper strip 31 passing over its surface, and the suction hole 81 on the reference plate 8 will attract the toilet paper strip 31 passing over its surface. The combined effect of the two allows the toilet paper strip 31 located between the second slitting roller 62 and the reference plate 8 to maintain an ideal tension even when the subsequent traction force is lost, effectively eliminating the slack, rebound and vibration of this section of paper strip; and it is effectively cut by the subsequent cutting mechanism 9.

[0051] Please see Figure 8 The cutting mechanism 9 is mounted on the frame 1 between the second splitting roller 62 and the reference plate 8, and is used to cut the toilet paper strip 31 in a taut state. Specifically, the cutting mechanism 9 includes a cutting frame 91 fixedly mounted on the frame 1, a blade holder 92 slidably mounted on the cutting frame 91, a cutting blade 93 rotatably mounted on the blade holder 92 via a rotating shaft, and a cutting drive assembly 94 that drives the cutting blade 93 to reciprocate around one side of the reference plate 8. In this embodiment, the cutting drive assembly 94 can be a cylinder, an electric push rod, or a motor belt mechanism. Preferably, the cutting drive assembly 94 in this embodiment is a motor, a pulley set, and a belt. The blade holder 92 is fixedly mounted on the belt, and the motor drives the reciprocating transmission of the belt, thereby pushing the blade holder 92 to move laterally back and forth. During cutting, the sharp cutting blade 93 rolls close to the edge of the reference plate 8 under the drive, cleanly cutting the taut toilet paper strip 31.

[0052] The winding mechanism 10 is used to drive the paper roll 33 to rotate again after cutting, so as to neatly wind up the remaining loose "material ends" after cutting to the outer layer of the paper roll 33. The winding mechanism 10 includes a winding roller 101 rotatably mounted on the frame 1 and a winding drive assembly 102 for driving the winding roller 101 to rotate. In this embodiment, the winding drive assembly 102 may be a motor fixed on the frame 1, a driven sprocket fixedly connected to the winding roller 101, a driving sprocket fixed on the output shaft of the motor, and a chain sleeved on the driven sprocket and the driving sprocket.

[0053] The paper roll 33 pushed by the lifting component 7 falls onto the winding roller 101. The winding drive component 102 drives the winding roller 101 to rotate, and the paper roll 33 rotates through friction to complete the winding of the material head, preparing for the subsequent sealing process.

[0054] Brief description of usage:

[0055] 1. Feeding and winding: The paper tube 32 is fed into the space between the first winding roller 61 and the second winding roller 62; under the pressure of the contact roller 64, the winding drive assembly 63 is activated, and the toilet paper strip 31 is wound around the paper tube 32 to form an ever-increasing paper roll 33.

[0056] 2. Lifting and tensioning: When the paper roll 33 reaches the predetermined diameter, the slitting stops; the lifting cylinder 71 is activated, and the lifting rod 72 slightly lifts the paper roll 33, so that it is no longer in close contact with the first slitting roller 61 and the second slitting roller 62, and pushes it forward to the winding mechanism 10; at this time, the suction holes 81 on the second slitting roller 62 and the reference plate 8 start to work, firmly adsorbing the passing toilet paper strip 31, keeping it in a taut state in the cutting area;

[0057] 3. Cutting: The cutting mechanism 9 is activated, and the cutting blade 93 moves quickly along the edge of the reference plate 8 to cut the taut toilet paper strip 31; since the paper strip is not slack, the cut surface is flat and no wrinkles are generated;

[0058] 4. Rewinding head: After cutting, the suction hole 81 on the reference plate 8 releases the toilet paper strip 31, the rewinding mechanism 10 starts, drives the paper roll 33 to rotate, and neatly rewinds the section of toilet paper strip 31 (head) connected to the paper roll 33 onto the surface of the paper roll 33.

[0059] 5. Reset and Cycle: The lifting assembly 7 is reset, the new paper tube 32 is loaded, and the next work cycle begins.

[0060] Example 2

[0061] Please see Figure 1 , Figure 2 and Figure 5 A cutting device for toilet paper production also includes a feeding mechanism 5 disposed on the top of the frame 1 and used to automatically feed the paper tube 32;

[0062] The feeding mechanism 5 includes a storage trough 51, a feeding trough 52, and a feeding drive assembly 53, which are inclinedly arranged on the frame 1. The outlet of the storage trough 51 is connected to the feeding trough 52. The storage trough 51 is fixedly installed on the top of the frame 1. The feeding drive assembly 53 drives the feeding trough 52 to slide on the frame 1. In this embodiment, an inclined mounting plate 2 is fixedly installed on the top of the frame 1. The feeding drive assembly 53 includes a cylinder fixed to the bottom of the inclined mounting plate 2, a guide rail fixedly installed on the inclined mounting plate 2, and a slider fixedly installed at the bottom of the feeding trough 52 and slidingly cooperating with the guide rail. The piston rod of the cylinder is fixedly connected to the bottom of the feeding trough 52.

[0063] A baffle 54 is hinged to one side of the discharge port of the storage tank 51. A storage cylinder 55 is also hinged to the storage tank 51. The piston rod end of the storage cylinder 55 is hinged to the baffle 54. By controlling the storage cylinder 55, the opening and closing of the baffle 54 can be controlled, so as to realize the orderly and single release of the paper tube 32 into the feeding tank 52.

[0064] A limit frame 56 is fixedly installed on the feeding trough 52 to ensure that the paper tubes 32 are stacked in a single row. A blocking cylinder 57 is also installed on the discharge side of the feeding trough 52. The blocking cylinder 57 is vertically fixed on the limit frame 56, and a buffer block 58 (such as a rubber block) is fixedly installed on the piston rod of the blocking cylinder 57. When the feeding trough 52 carries the paper tubes 32 to the feeding station of the slitting roller, the piston rod of the blocking cylinder 57 retracts to ensure that only one paper tube 32 is fed at a time. After feeding is completed, the piston rod of the blocking cylinder 57 descends to prevent the subsequent paper tubes 32 from advancing. The feeding trough 52 retracts to pick up the next paper tube 32 and also avoids interference with the contact roller 64.

[0065] The feeding mechanism 5 enables fully automatic and precise feeding of paper tubes 32, further improving the automation level and efficiency of the entire production line.

[0066] In summary, the present invention effectively solves the problem of wrinkles that occur during cutting due to paper loosening in the prior art, and significantly improves the cutting quality of toilet paper rolls and the appearance of the final product.

[0067] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A cutting device for toilet paper production, characterized in that: Including rack (1), Material roll (3), which is detachably mounted on frame (1); A conveyor roller assembly (4) is mounted on a frame (1) and is used to convey the toilet paper strip (31) on the roll (3); The slitting mechanism (6) is used to slitting toilet paper strip (31) onto a paper tube (32). The slitting mechanism (6) includes a first slitting roller (61) and a second slitting roller (62) that are horizontally arranged and rotatably arranged on the frame (1), a slitting drive assembly (63) that drives the first slitting roller (61) and the second slitting roller (62) to rotate synchronously and in the same direction, and a contact roller (64) that is movably arranged on the frame (1) and located above the first slitting roller (61) and the second slitting roller (62). The paper tube (32) is fed between the first slitting roller (61) and the second slitting roller (62), and the contact roller (64) is placed on the paper tube (32). The first slitting roller (61) and the second slitting roller (62) drive the paper tube (32) and the contact roller (64) to rotate through friction, and the toilet paper strip (31) is wound onto the paper tube (32) during the rotation. Lifting assembly (7), which is disposed between the first slitting roller (61) and the second slitting roller (62) and is used to push the slitting paper roll (33) forward; A reference plate (8) is fixedly mounted on the frame (1); the second slitting roller (62) is located near the reference plate (8), and both the second slitting roller (62) and the reference plate (8) are provided with suction holes (81) that are connected to an external negative pressure device and used to absorb toilet paper strips (31) so that the toilet paper strips (31) located between the second slitting roller (62) and the reference plate (8) are in a taut state; The cutting mechanism (9) is set on the frame (1) between the second splitting roller (62) and the reference plate (8) and cuts the tensioned toilet paper strip (31) with one side of the reference plate (8) as a reference. A winding mechanism (10) is used to drive the slit paper roll (33) to rotate so that the paper head is wound up.

2. The cutting device for toilet paper production according to claim 1, characterized in that: It also includes a feeding mechanism (5) disposed on the frame (1) and used for automatically feeding paper tubes (32). The feeding mechanism (5) includes a storage trough (51) disposed inclined on the frame (1), a feeding trough (52) connected to the storage trough (51) and slidably disposed on the frame (1), and a feeding drive assembly (53) disposed on the frame (1) and driving the feeding trough (52) to slide.

3. A cutting device for toilet paper production according to claim 2, characterized in that: A baffle (54) is hinged to one side of the discharge port of the storage tank (51), and a storage cylinder (55) with one end of its piston rod hinged to the baffle (54) is hinged to the storage tank (51).

4. A cutting device for toilet paper production according to claim 2, characterized in that: A limiting frame (56) is fixedly installed on the feeding trough (52) to allow the paper tubes (32) to be stacked in a single row. A blocking cylinder (57) is installed on one side of the discharge port of the feeding trough (52). The blocking cylinder (57) is vertically fixed on the limiting frame (56). A buffer block (58) is fixedly installed on the piston rod of the blocking cylinder (57).

5. A cutting device for toilet paper production according to claim 1, characterized in that: The frame (1) is hinged to both sides with a connecting frame (65) and a connecting cylinder (66). The piston rod of the connecting cylinder (66) is hinged to the connecting frame (65). Both ends of the contact roller (64) are rotatably connected to the connecting frame (65).

6. A cutting device for toilet paper production according to claim 1, characterized in that: The lifting assembly (7) includes a lifting cylinder (71) fixed to the bottom of the frame (1) and a lifting rod (72) fixed to the lifting cylinder (71). The lifting rod (72) is located between two slitting rollers. The top of the lifting rod (72) is inclined.

7. A cutting device for toilet paper production according to claim 1, characterized in that: The second slitting roller (62) includes an inner cylinder (621) rotatably mounted on the frame (1), an anti-slip sleeve (622) sleeved on the inner cylinder (621), and an air inlet (623) dynamically sealed to the inner cylinder (621) and connected to an external negative pressure device; An air chamber is provided in the middle of the inner cylinder (621), and the air intake holes (81) are evenly arranged on the inner cylinder (621) and the anti-slip sleeve (622) and are in communication with the air chamber.

8. A cutting device for toilet paper production according to claim 1, characterized in that: The slitting drive assembly (63) includes a slitting motor fixed on the frame (1), a drive sprocket fixedly connected to the output shaft of the slitting motor, two driven sprockets respectively fixed on the first slitting roller (61) and the second slitting roller (62), and a chain sleeved on the drive sprocket and the two driven sprockets.

9. A cutting device for toilet paper production according to claim 1, characterized in that: The cutting mechanism (9) includes a cutting frame (91) fixedly mounted on the frame (1), a knife holder (92) slidably mounted on the cutting frame (91), a cutting blade (93) rotatably mounted on the knife holder (92), and a cutting drive assembly (94) that drives the cutting blade (93) to reciprocate with reference to one side of the reference plate (8).

10. A cutting device for toilet paper production according to claim 1, characterized in that: The winding mechanism (10) includes a winding roller (101) rotatably mounted on the frame (1) and a winding drive assembly (102) for driving the winding roller (101) to rotate.

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