Full-automatic point-breaking continuous extraction tissue folding production line

Abstract

The invention relates to a full-automatic point-breaking continuous extraction tissue folding production line, which belongs to the field of tissue production and manufacturing, and comprises a rack, a crease component is arranged on the rack, the crease component comprises an upper crease roller and a cutting roller, a convex edge blade is arranged on the upper crease roller, a cutting mark blade is arranged on the cutting roller, and the cutting roller and the upper crease roller are arranged in parallel. The tissue passes through the space between the upper creasing roller and the cutting roller, and the creasing blade and the convex edge blade are respectively propped against two opposite sides of the tissue; a cutting edge of the mark cutting blade comprises a plurality of continuous parts and a plurality of breakpoint parts in the length direction of the cutting edge, each breakpoint part comprises a plurality of breakpoint knife stabs, and the breakpoint knife stabs are fixedly connected with the continuous parts. The cutting mark blade corresponding to the continuous part can cut off the tissue, the cutting mark blade corresponding to the breakpoint part leaves breakpoint tool marks on the tissue, the continuous tissue segments are in end-to-end breakpoint connection, when the tissue is drawn out, after the front tissue is completely drawn out, only one corner is brought out on the rear tissue, and at the moment, the breakpoint connection position of the front tissue is pulled apart.

Description

Technical Field

[0001] The present application relates to the field of paper towel production and manufacturing, and in particular to a fully automatic point-break continuous paper towel folding production line. Background Art

[0002] Tissue paper is a kind of paper handkerchief which is very convenient to use. In order to facilitate people's use, the extraction methods of tissue paper products are divided into continuous extraction and non-continuous extraction.

[0003] Currently, most of the continuous-pull style paper towels on the market are overlapped, that is, there is a crease on each piece of paper towel, and two adjacent pieces of paper towels are staggered in half when stacked. When one piece is pulled out, a part of the paper towel below will be brought out through the folded half of itself. Affected by factors such as the overlap width and the friction force on the surface of the paper towel, the part of the lower paper towel that is brought out is sometimes more, sometimes less, or even cannot be effectively brought out, which affects the extraction effect and causes inconvenience in use. Summary of the invention

[0004] In order to improve the above problems, the present application provides a fully automatic point-break continuous draw paper towel folding production line.

[0005] The fully automatic point-break continuous draw paper towel folding production line provided in this application adopts the following technical solution: A fully automatic point-break continuous draw paper towel folding production line comprises a frame, the frame is provided with a crease assembly, the crease assembly is used for performing crease processing and breakpoint processing on paper towels, the crease assembly comprises an upper crease roller and a cutting roller, the paper towel passes between the upper crease roller and the cutting roller, the upper crease roller is provided with a convex blade, the cutting roller is provided with a cutting blade, the cutting roller and the upper crease roller are arranged in parallel, the cutting roller and the upper crease roller rotate at the same speed, the cutting blade and the convex blade respectively abut against opposite sides of the paper towel; the blade of the cutting blade comprises a plurality of continuous parts and a plurality of breakpoint parts, the continuous parts and the breakpoint parts are alternately arranged along the length direction of the cutting blade, the breakpoint part comprises a plurality of breakpoint stabs, the breakpoint stabs are fixedly connected to the continuous part, and the arrangement direction of the plurality of breakpoint stabs is consistent with the length direction of the cutting blade.

[0006] By adopting the above technical solution, the cutting blade corresponding to the continuous part can cut the paper towel, and the cutting blade corresponding to the breakpoint part leaves a breakpoint knife mark on the paper towel. The continuous paper towel fragments are connected at the beginning and the end at the breakpoints. When the paper towel is pulled out, after the front paper towel is completely pulled out, only a corner of the rear paper towel is pulled out. At this time, the breakpoint connection of the front paper towel can be torn off.

[0007] Preferably, the crease assembly also includes a lower crease roller, the lower crease roller is provided with a crease ridge, the lower crease roller is provided with a first matching groove, the upper crease roller is provided with a second matching groove, the axes of the upper and lower crease rollers are parallel, the upper and lower crease rollers rotate at the same speed, the ridge blade is inserted into the first matching groove, the crease ridge is inserted into the second matching groove, and the paper towel passes between the upper and lower crease rollers after leaving the cutting roller.

[0008] By adopting the above technical solution, the convex blade and the fold convex ridge squeeze the paper towel in turn, so that continuous opposite folds are formed on the paper towel, and the breakpoints are located at the folds corresponding to the convex blade.

[0009] Preferably, the crease assembly further comprises an auxiliary roller, the lower crease roller and the auxiliary roller are rotatably connected to the frame, the paper towel passes between the lower crease roller and the auxiliary roller, and the opposite sides of the paper towel respectively abut the side walls of the lower crease roller and the auxiliary roller, and the auxiliary roller is provided with an auxiliary groove, and the auxiliary groove is provided for the corresponding insertion of the crease convex ridge; a receiving body is provided on the frame, the receiving body is located below the crease assembly, and a ferry mechanism is provided on the frame between the crease assembly and the receiving body, the crease assembly comprises the lower crease roller and the auxiliary roller, the ferry mechanism comprises a clamping assembly, the clamping assembly comprises two clamping frames and a power assembly, the clamping frame slides relative to the frame, and the sliding direction comprises a vertical direction and a horizontal direction, the paper towel leaving the crease assembly is stacked above one of the clamping frames to form a stacking block, and the other clamping frame is located above the stacking block, and the two clamping frames form opposite clamping and abutting against the stacking block, and the power assembly is used to control the movement of the clamping frame.

[0010] By adopting the above technical solution, the stack of paper towels folded by the crease assembly can be clamped up and down by two clamping frames, and then the two clamping frames clamp the stack of paper towels and move downward synchronously to tear the stack of paper towels and the paper towels on the crease assembly apart, so that the single stack of paper towels can be detached from the continuous production line.

[0011] Preferably, a plurality of negative pressure chambers are provided in the upper crease roller, the lower crease roller and the auxiliary roller, and the plurality of negative pressure chambers are arranged along the circumference of the upper crease roller, the lower crease roller or the auxiliary roller. Adsorption holes are provided on the upper crease roller, the lower crease roller and the auxiliary roller, one end of the adsorption hole is connected to the negative pressure chamber, and the other end is located on the surface of the upper crease roller or on the groove wall of the first matching groove or on the groove wall of the auxiliary groove. An air supply body is provided on the frame, and an air supply channel is provided in the air supply body, and the air supply channel is selectively connected to each negative pressure chamber.

[0012] By adopting the above technical scheme, local parts of the roller surfaces of the upper crease roller, the lower crease roller and the auxiliary roller have an adsorption effect on the paper towel, thereby improving the state stability of the paper towel during crease and cut processing. The crease on the paper towel is located in the first matching groove or the auxiliary groove, and the negative pressure generated by the adsorption holes on the groove wall further applies folding force to the paper towel, thereby improving the forming quality of the crease on the paper towel. At the same time, this force is relatively gentle on the paper towel, and compared with the mechanical cloth-clamping crease operation, the chance of damage to the paper towel is further reduced.

[0013] Preferably, the frame is also provided with a folding drive mechanism, which includes a drive motor, a reducer, a first gear, a second gear, a cutting gear, an auxiliary gear and a connecting gear, the first gear is coaxially connected to the upper crease roller, the second gear is coaxially connected to the lower crease roller, the cutting gear is coaxially connected to the cutting roller, the auxiliary gear is coaxially connected to the auxiliary roller, the output end of the reducer, the first gear, the second gear and the auxiliary gear are meshed in sequence, and the connecting gear is meshed between the first gear and the cutting gear.

[0014] Preferably, the power assembly includes a lifting seat and a first belt transmission mechanism, the lifting seat is slidably connected relative to the frame in the vertical direction, the clamping frame is connected to the lifting seat, the first belt transmission mechanism is located on the frame, and the lifting seat and the transmission belt of the first belt transmission mechanism are fixedly connected.

[0015] By adopting the above technical solution, the transmission belt of the first belt transmission mechanism moves to drive the lifting seat to move up and down.

[0016] Preferably, the power assembly also includes a transverse sliding slider, which slides in a horizontal direction relative to the lifting seat, the clamping frame is fixedly connected to the transverse sliding slider, the lifting seat is provided with a power motor, the output end of the power motor is fixedly connected to a power swing arm, a power connecting rod is connected between the power swing arm and the transverse sliding slider, one end of the power connecting rod is hinged to the power swing arm, and the other end is hinged to the transverse sliding slider.

[0017] By adopting the above technical solution, after the power motor is started, a thrust or a pull is applied to the transverse sliding block through the slider connecting rod mechanism to control its transverse movement.

[0018] Preferably, the ferry mechanism further includes a receiving assembly, and the receiving assembly includes a lifting frame and a control assembly, and the control assembly is used to control the up-down or horizontal movement of the lifting frame relative to the frame.

[0019] By adopting the above technical solution, the paper towels fall naturally after passing through the crease assembly, and the lifting frame receives and lifts the paper towels. The paper towels are first stacked on the lifting frame and wait to be clamped by the clamping frame.

[0020] Preferably, the receiving body includes a conveyor belt and an intercepting railing, the conveyor belt is connected to the frame, the intercepting railing is fixedly connected to the frame and is located on opposite sides of the conveyor belt, the lifting frame and the clamping frame both include a plurality of branch claws, the branch claws pass through the gaps of the intercepting railing, and the branch claws of the lifting frame and the clamping frame are arranged alternately.

[0021] By adopting the above technical solution, the lifting frame and the clamping frame can move independently without blocking or interfering with each other. The lifting frame or the clamping frame can move horizontally and withdraw outside the intercepting railing, and the paper towels are blocked by the intercepting railing and remain inside the intercepting railing, thereby achieving the separation of the lifting frame, the clamping frame and the paper towels.

[0022] Preferably, the frame is also provided with a front traction assembly, the front traction assembly includes two traction rollers, the traction rollers are rotatably connected to the frame, the paper towel passes between the two traction rollers and abuts against the roller surfaces of the two traction rollers, a spray mechanism is provided on the frame and between the crease assembly and the front traction assembly, the spray mechanism includes a spray pipe and a drainage trough body, the paper towel passes between the spray pipe and the drainage trough body, the spray pipe is located above the paper towel and the spray pipe is provided with a nozzle facing the paper towel, the drainage trough body is located below the paper towel, the spray mechanism also includes a lifting cylinder, the cylinder body of the lifting cylinder is fixedly connected to the frame, the piston rod is rotatably connected to the spray pipe, and the rotation axis and the nozzle of the spray pipe are perpendicular.

[0023] By adopting the above technical solution, the spray pipe sprays liquid onto the paper towel to make the paper towel wet. The distance of the spray pipe relative to the paper towel is adjustable, and the direction of the nozzle is also adjustable. When the equipment is shut down or started, the spray pipe should be controlled to move away from the paper towel to avoid excessive infiltration of the liquid into the paper towel, resulting in uneven or excessive immersion of the paper towel.

[0024] By adopting the above technical solution, the stack of paper towels formed by the folding process of the crease assembly can be clamped up and down by two clamping frames, and then the two clamping frames clamp the stack of paper towels and move downward synchronously to tear the stack of paper towels and the paper towels on the crease assembly apart. The single stack of paper towels can then be detached from the continuous production line, facilitating subsequent installation operations.

[0025] Preferably, the crease assembly further comprises an upper crease roller and a cutting roller, and the paper towel passes through between the upper crease roller and the cutting roller, between the upper crease roller and the lower crease roller, and between the lower crease roller and the auxiliary roller in sequence; the upper crease roller is provided with a ridge blade, the lower crease roller is provided with a crease ridge, the lower crease roller is provided with a first matching groove, the upper crease roller is provided with a second matching groove, the axes of the upper and lower crease rollers are parallel, the upper and lower crease rollers rotate at the same speed, the ridge blade is inserted into the first matching groove, the crease ridge is inserted into the second matching groove, the auxiliary roller is provided with an auxiliary groove, and the auxiliary groove is provided for the crease ridge to be inserted; the cutting roller is provided with a cutting blade, the cutting roller and the upper crease roller are arranged in parallel, the cutting roller and the upper crease roller rotate at the same speed, and the cutting blade and the ridge blade respectively abut against the opposite sides of the paper towel.

[0026] By adopting the above technical solution, the ridge blade and the fold ridge squeeze the paper towel to form continuous opposite folds on the paper towel, and at the same time the cutting blade cuts the paper towel on the opposite side of the ridge blade, so that cutting marks exist on some of the folds of the paper towel.

[0027] Preferably, the blade of the scoring blade includes a plurality of continuous portions and a plurality of breakpoint portions, the continuous portions and the breakpoint portions are alternately arranged along the length direction of the scoring blade, the breakpoint portion includes a plurality of breakpoint stabs, the breakpoint stabs are fixedly connected to the continuous portion, and the arrangement direction of the plurality of breakpoint stabs is consistent with the length direction of the scoring blade.

[0028] By adopting the above technical solution, the cutting blade corresponding to the continuous part can cut the paper towel, and the cutting blade corresponding to the breakpoint part leaves breakpoint knife marks on the paper towel, and the paper towel segments here are connected by breakpoints.

[0029] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the setting of the continuous part and multiple breakpoint parts, the paper towel passes between the upper folding roller and the cutting roller. The cutting blade corresponding to the continuous part can cut the paper towel, and the cutting blade corresponding to the breakpoint part leaves breakpoint knife marks on the paper towel. The continuous paper towel fragments are connected at the beginning and the end. When the paper towel is drawn out, after the front paper towel is completely drawn out, only one corner of the back paper towel is taken out. At this time, the breakpoint connection of the front paper towel can be torn off; 2. Through the setting of the receiving component, when the clamping component is placing piles of paper towels, the lifting frame of the receiving component can continue to stack and receive the paper towels under the crease component, preparing for the subsequent work of the clamping component. During this period, the crease component does not need to be shut down, which improves the continuity of equipment operation and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1It is a structural schematic diagram used to embody the fully automatic point-break continuous draw paper towel folding production line in the embodiment of the present application.

[0031] Figure 2 It is a structural cross-sectional schematic diagram used to embody a fully automatic point-break continuous draw paper towel folding production line in an embodiment of the present application.

[0032] Figure 3 It is a structural schematic diagram used to reflect the crease assembly and the folding drive mechanism in the embodiment of the present application.

[0033] Figure 4 It is a schematic diagram of the installation structure of the air supply body in the embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the structure of the lower crease roller in the embodiment of the present application.

[0035] Figure 6 It is a schematic diagram of the driving structure of the stripping claw in the embodiment of the present application.

[0036] Figure 7 It is a structural diagram used to reflect the receiving component in the embodiment of the present application.

[0037] Figure 8 It is a schematic diagram of the structure of the receiving body and the clamping assembly in the embodiment of the present application.

[0038] Fig. 9 It is a structural schematic diagram used to reflect the clamping assembly in the embodiment of the present application.

[0039] Fig.10 It is a schematic diagram used to illustrate the connection operation of the lifting frame and the clamping frame in the embodiment of the present application.

[0040] Description of reference numerals: 1, frame; 11, receiving body; 111, conveyor belt; 112, intercepting railing; 12, front traction assembly; 121, traction roller; 2, crease assembly; 21, upper crease roller; 211, convex blade; 212, second matching groove; 22, lower crease roller; 221, crease convex; 222, first matching groove; 23, negative pressure chamber; 231, adsorption hole; 24, air supply body; 241, installation groove; 2 42. air supply channel; 243. air supply hole; 25. cutting roller; 26. notching blade; 261. continuous part; 262. breakpoint part; 2621. breakpoint knife thorn; 27. auxiliary roller; 271. auxiliary groove; 28. end shaft body; 29. ​​stripping claw; 291. stripping groove; 3. folding drive mechanism; 31. drive motor; 32. reducer; 33. first gear; 34. second gear; 35. cutting gear; 36. connection gear; 361, connecting block; 362, pressing spring; 37, auxiliary gear; 38, swing gear; 381, eccentric pin; 382, ​​stripping connecting rod; 383, stripping swing rod; 4, ferry mechanism; 41, clamping assembly; 411, clamping frame; 42, power assembly; 421, lifting seat; 422, first belt transmission mechanism; 423, transverse sliding block; 424, power motor; 425, power swing rod; 426, power Connecting rod; 43. Receiving assembly; 431. Lifting frame; 44. Control assembly; 441. Mounting block; 442. Second belt transmission mechanism; 443. Adjusting block; 444. Adjusting motor; 445. Adjusting rocker arm; 446. Adjusting connecting rod; 45. Balancing assembly; 451. Balancing motor; 452. Balancing rocker arm; 453. Balancing connecting rod; 5. Spraying mechanism; 51. Spraying pipe; 52. Drain trough; 53. Lifting cylinder. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-10 This application is described in further detail.

[0042] The present application embodiment discloses a fully automatic point-break continuous draw paper towel folding production line, such as Figure 1 and 2 As shown, it includes a frame 1, and along the moving direction of the paper towel, the frame 1 is sequentially provided with a front traction component 12, a spray mechanism 5, a crease component 2, a ferry mechanism 4 and a receiving body 11. The front traction component 12 and the crease component 2 both have a traction force on the paper towel. The "paper towel" that has just passed the front traction component 12 is temporarily in a raw material state without being soaked in liquid material. The spray mechanism 5 sprays the liquid material on it to make it a real paper towel, and then the crease component 2 performs crease processing and breakpoint processing on the paper towel. The ferry mechanism 4 is used to stack the paper towels with creases that leave the crease component 2 and transport them to the receiving body 11.

[0043] like Figure 1 and 2As shown, the front traction assembly 12 includes two traction rollers 121 rotatably connected to the frame 1. The axes of the two traction rollers 121 are parallel to each other and their axial directions are horizontal. The paper towel passes between the two traction rollers 121 and abuts against the roller surfaces of the two traction rollers 121. The frame 1 is provided with a motor for driving the traction rollers 121 to rotate, so that the traction rollers 121 can drive the paper towel to move by friction. The spray mechanism 5 includes a spray pipe 51 and a drain tank 52, both of which are connected to the frame 1. The paper towel passes between the spray pipe 51 and the drain tank 52. The spray pipe 51 is located above the paper towel and is provided with a nozzle facing the paper towel. The drain tank 52 is located below the paper towel. The spray pipe 51 sprays the liquid material required for the paper towel toward the paper towel. The liquid overflowing from the paper towel due to saturation will naturally fall into the drain tank 52 for collection, which is convenient for recycling. The moving direction of the paper towel when passing through the spray mechanism is horizontal. The spray mechanism 5 also includes a lifting cylinder 53. The cylinder body of the lifting cylinder 53 is fixedly connected to the frame 1, and the piston rod and the spray pipe 51 are rotatably connected. The rotation axis and the nozzle of the spray pipe 51 are perpendicular, that is, the distance of the spray pipe 51 relative to the paper towel is adjustable, and the direction of the nozzle is also adjustable. When the equipment is shut down or started, the spray pipe 51 should be controlled to move away from the paper towel to avoid excessive infiltration of the liquid into the paper towel, resulting in uneven or excessive immersion of the paper towel.

[0044] like Figure 2 and 3As shown, the crease assembly 2 includes an upper crease roller 21, a lower crease roller 22, a cutting roller 25 and an auxiliary roller 27, all of which are rotatably connected to the frame 1; the upper crease roller 21 is above the lower crease roller 22 and the two are axially parallel, the cutting roller 25 is located beside the upper crease roller 21, and the auxiliary roller 27 is located beside the lower crease roller 22. The paper towel first passes between the upper crease roller 21 and the cutting roller 25, then passes between the upper crease roller 21 and the lower crease roller 22, and finally passes between the lower crease roller 22 and the auxiliary roller 27. A convex blade 211 is fixedly provided on the roller surface of the upper crease roller 21, and a crease convex rib 221 is fixedly provided on the surface of the lower crease roller 22. The length directions of the convex blade 211 and the crease convex rib 221 are both parallel to the roller axis. The lower crease roller 22 is provided with a first matching groove 222, and the upper crease roller 21 is provided with a second matching groove 212. The number of the first matching grooves 222 is the same as the number of the upper crease roller 21, and the number of the second matching grooves 212 is the same as the number of the crease ribs 221. The upper crease roller 21 and the lower crease roller 22 rotate at the same speed, the rib blade 211 is inserted into the first matching groove 222, and the crease rib 221 is inserted into the second matching groove 212. When the paper towel passes between the upper crease roller 21 and the lower crease roller 22, the two sides of the paper towel abut against the upper crease roller 21 and the lower crease roller 22 respectively, and the rib blade 211 and the crease rib 221 form alternating creases on the surface of the paper towel. The auxiliary roller 27 is provided with an auxiliary groove 271, and the auxiliary groove 271 is inserted into the crease rib 221. The cross sections of the first matching groove 222 and the auxiliary groove 271 are both V-shaped.

[0045] like Figure 2 and 3 As shown, a plurality of scoring blades 26 are evenly and fixedly arranged on the circumference of the cutting roller 25, and the number of the scoring blades 26 is consistent with the number of the ridge blades 211, and the rotation speeds of the cutting roller 25 and the upper folding roller 21 are consistent. When the paper towel passes between the two, each scoring blade 26 repeatedly contacts the paper towel, and the edge of the ridge blade 211 abuts against the side of the paper towel away from the scoring blade 26, and the two jointly exert an extrusion force on the paper towel, thereby producing a cutting effect on the paper towel, thereby leaving a crack on the paper towel, and the crack is just located on the fold corresponding to the ridge blade 211. The blade of the scoring blade 26 includes a plurality of continuous portions 261 and a plurality of breakpoint portions 262, and the continuous portions 261 and the breakpoint portions 262 are alternately arranged along the length direction of the scoring blade 26, and the breakpoint portion 262 includes a plurality of breakpoint thorns 2621, and the breakpoint thorns 2621 and the continuous portion 261 are integrally formed, and the arrangement direction of the plurality of breakpoint thorns 2621 is consistent with the length direction of the scoring blade 26. Therefore, the cutting marks on the paper towel are arranged in the form of cracks and breakpoints at intervals. In the subsequently formed paper towel products, every two adjacent paper towels are connected by breakpoints in the form of coexistence of breakpoints and cracks.

[0046] like Figure 2 and 3As shown, the cutting roller 25 and the upper crease roller 21 rotate in the same direction, and the upper crease roller 21 and the lower crease roller 22 rotate in opposite directions, that is, during the movement of the paper towel, the friction forces from the cutting roller 25 and the upper crease roller 21 are in opposite directions, and the friction forces from the upper crease roller 21 and the lower crease roller 22 are in the same direction. In order to improve the smoothness of the paper towel cutting, the cutting blade 26 and the ridge blade 211 are in point contact, and the contact point of the cutting blade 26 with the paper towel should move quickly along the length direction of the ridge blade 211 when the paper towel moves. Considering that the axis of the cutting roller 25 is inclined relative to the axis of the upper crease roller 21, the length direction of the cutting blade 26 is also inclined relative to the axis of the cutting roller 25. During the continuous rotation of the cutting roller 25 and the upper crease roller 21, the tip of the cutting blade 26 and the corner of the ridge blade 211 are always in point contact.

[0047] like Figure 2 , 4 As shown in Figure 5, in order to improve the stability of the relative roller surface when the paper towel bypasses the upper crease roller 21 and the lower crease roller 22, a plurality of negative pressure chambers 23 are provided in the upper crease roller 21, the lower crease roller 22 and the auxiliary roller 27, and the plurality of negative pressure chambers 23 are arranged along the circumference of the upper crease roller 21, the lower crease roller 22 or the auxiliary roller 27. Adsorption holes 231 are provided on the upper crease roller 21, the lower crease roller 22 and the auxiliary roller 27, and one end of the adsorption hole 231 is connected to the negative pressure chamber 23. The orifice of the adsorption hole 231 on the upper crease roller 21 is located on the roller surface thereof, the orifice of the adsorption hole 231 on the lower crease roller 22 is located on the groove wall of the first matching groove 222, and the orifice of the adsorption hole 231 on the auxiliary roller 27 is located on the groove wall of the auxiliary groove 271. The frame 1 is provided with an air supply body 24, in which an air supply channel 242 is provided, and the air supply channel 242 is selectively connected to each negative pressure chamber 23; the air supply body 24 is externally connected to a negative pressure air source (not shown in the figure), and the negative pressure air source draws air, thereby generating negative pressure in the negative pressure chamber 23 and the adsorption hole 231 connected to the air supply channel 242. When the paper towel passes through the crease assembly 2, its own surface fits with the roller surface 21, and the crease formed on the paper towel enters either the first matching groove 222 or the auxiliary groove 271. Therefore, the negative pressure adsorption effect generated at the adsorption hole 231 can make the state of the paper towel relative to the upper crease roller 21 more stable, and the adsorption force further folds and applies force to the crease position of the paper towel, thereby improving the forming quality of the crease on the paper towel. At the same time, this force is relatively gentle on the paper towel. Compared with the mechanical cloth clamping crease operation, this structure further reduces the probability of damage to the paper towel.

[0048] like Figure 3 , 4As shown in Figure 5, the end faces of the upper crease roller 21, the lower crease roller 22 and the auxiliary roller 27 are respectively fixedly connected with an end shaft body 28, and each end shaft body 28 is used to make the upper crease roller 21 or the lower crease roller 22 or the auxiliary roller 27 rotatably connected to the frame 1. The air supply body 24 is U-shaped, and a mounting groove 241 is formed thereon. The groove width of the mounting groove 241 is greater than or equal to the diameter of the end shaft body 28. The groove wall of the mounting groove 241 abuts against the side wall of the end shaft body 28, and the air supply body 24 faces the upper crease roller 21 or the lower crease roller 22 or An air supply hole 243 is provided on the side wall of one side of the auxiliary roller 27. When the upper crease roller 21, the lower crease roller 22 and the auxiliary roller 27 rotate, the air supply body 24 is stationary relative to the frame 1, and part of the negative pressure chamber 23 can be aligned with and connected to the air supply hole 243. No airflow is formed in the negative pressure chamber 23 that is not connected to the air supply hole 243. That is, when the upper crease roller 21, the lower crease roller 22 and the auxiliary roller 27 rotate, some of the adsorption holes 231 thereon can transmit the negative pressure adsorption effect to the paper towel only when they rotate to a specific angle position. In this embodiment, the adsorption hole 231 capable of generating negative pressure adsorption force is located at the direction of the upper crease roller 21 toward the cutting roller 25, and the direction of the lower crease roller 22 toward the upper crease roller 21 and the auxiliary roller 27, and the direction of the auxiliary roller 27 toward the lower crease roller 22, that is: when 211 presses the paper towel into the first matching groove 222, the surface of the upper crease roller 21 has no adsorption effect, while the groove wall of the first matching groove 222 has an adsorption effect, so that the position with the breakpoint of the paper towel is creased once, and the paper towel at this position is adsorbed in the first matching groove 222, and the paper towel moves with the surface of the lower crease roller 22. When the crease ridge 221 enters the auxiliary groove 271, the groove wall of the auxiliary groove 271 has a negative pressure adsorption effect, thereby performing a second crease processing on the paper towel. The formed crease position is located between the two groups of breakpoints of the paper towel, and this part of the paper towel is adsorbed. With the cooperation of the adsorption effect of the lower crease roller 22 on the paper towel, the paper towel will tend to be folded repeatedly in both directions when passing through between the lower crease roller 22 and the auxiliary roller 27.

[0049] like Figure 2 and 6 As shown, the crease assembly 2 also includes two peeling claws 29, which are rotatably arranged on the frame 1 and are located below the lower crease roller 22 and the auxiliary roller 27, and the rotation axis is parallel to the axis of the lower crease roller 22 and the auxiliary roller 27. The lower crease roller 22 and the auxiliary roller 27 are both provided with peeling grooves 291 along their own circumferences, one of the peeling claws 29 corresponds to the lower crease roller 22, and the other peeling claw 29 corresponds to the auxiliary roller 27, the claw rod of the peeling claw 29 is against the peeling groove 291 on the lower crease roller 22 or the auxiliary roller 27, and the side wall of the claw rod is in contact with the groove wall of the peeling groove 291, the folding drive mechanism 3 can make the peeling claw 29 reciprocate repeatedly, and the peeling claw 29 can extend a certain distance from the peeling groove 291, and the peeling claw 29 repeatedly swings to peel the paper towel off the lower crease roller 22 or the auxiliary roller 27, so that the paper towel that has completed the crease processing is separated from the crease assembly 2.

[0050] like Figure 1 and 3 As shown, the folding drive mechanism 3 includes a driving motor 31, a reducer 32, a first gear 33, a second gear 34, a cutting gear 35, a connecting gear 36 and an auxiliary gear 37. The first gear 33 is coaxially fixedly connected to the upper crease roller 21, the second gear 34 is coaxially fixedly connected to the lower crease roller 22, the cutting gear 35 is coaxially connected to the cutting roller 25, and the auxiliary gear 37 is coaxially connected to the auxiliary roller 27. The driving motor 31 is connected to the reducer 32, and the output end of the reducer 32, the first gear 33, the second gear 34 and the auxiliary gear 37 are meshed in sequence, and the connecting gear 36 is meshed between the first gear 33 and the cutting gear 35. The pitch circle diameters of the first gear 33, the second gear 34, the cutting gear 35 and the auxiliary gear 37 are the same, that is, the rotation speeds of the upper crease roller 21, the lower crease roller 22, the cutting roller 25 and the auxiliary roller 27 are the same. The frame 1 is provided with a connection block 361 movably, and the connection gear 36 is rotatably provided on the connection block 361. The frame 1 is connected with a tightening spring 362, and the tightening spring 362 applies a thrust to the connection block 361 to make the connection block 361 have a movable tendency, and this movable tendency makes the connection gear 36 move close to the first gear 33 and the cutting gear 35. In this embodiment, the connection relationship between the connection block 361 and the frame 1 is hinged, and the hinge axis is parallel to the axis of the upper crease roller 21. Since the axes of the cutting roller 25 and the upper crease roller 21 are not parallel, the tooth shape of the connection gear 36 can be specially processed to make the three of them successfully and continuously meshed, and here it is helical gear meshing.

[0051] like Figure 1 and 6 As shown, the folding drive mechanism 3 also includes a swing gear 38, an eccentric pin 381, a stripping link 382 and a stripping swing rod 383 corresponding to the stripping claw 29. The swing gear 38 is rotatably arranged on the frame 1. The eccentric pin 381 is fixedly arranged on the end surface of the swing gear 38 and is eccentrically arranged relative to the axis of the swing gear 38. One end of the stripping swing rod 383 is fixedly connected to the rotating shaft of the stripping claw 29, and the other end is hinged to the stripping link 382. The end of the stripping link 382 away from the stripping swing rod 383 is hinged to the swing gear 38 through the eccentric pin 381. One of the swing gears 38 is meshed with the auxiliary gear 37, and the other swing gear 38 is meshed with the second gear 34. With the continuous input of torque, the eccentric pin 381 continuously rotates around the axis of the swing gear 38, and it repeatedly shakes the stripping swing rod 383 through the stripping link 382, ​​thereby controlling the repeated small-angle swing of the stripping claw 29 to achieve the action of stripping the paper towel. As an alternative, a servo motor and an eccentric connecting rod mechanism may be directly provided on the frame 1 to drive the stripping claw 29 , which will not be described in detail here.

[0052] like Figure 2 ,7 As shown in Figure 8, in this embodiment, the receiving body 11 includes a conveyor belt 111 and an intercepting rail 112. The conveyor belt 111 is located directly below the center of the lower crease roller 22 and the auxiliary roller 27 and is connected to the frame 1. The conveying direction of the conveyor belt 111 is horizontal and parallel to the axis of the auxiliary roller 27. The intercepting rail 112 is fixedly connected to the frame 1 and is located on opposite sides of the conveyor belt 111. The ferry mechanism 4 includes a clamping component 41 and a receiving component 43. The receiving component 43 is used to fold and stack the paper towels after they fall from the crease component 2 to form a stacking block. The clamping component 41 is used to clamp and drag the stack of paper towels formed on the receiving component 43 to the conveyor belt 111. The receiving assembly 43 includes a lifting frame 431 and a control assembly 44. The lifting assembly needs to move vertically or horizontally relative to the frame 1. After the processing of the crease assembly 2, the paper towels falling from between the lower crease roller 22 and the auxiliary roller 27 have continuous creases with alternating directions. When the paper towels fall on the lifting frame 431, they are continuously folded and stacked on the lifting frame 431. The stacking height is getting higher and higher. The lifting frame 431 carrying the paper towels also slowly and continuously descends under the control of the control assembly 44.

[0053] like Figure 2 and 7 As shown, the control assembly 44 is used to control the vertical or horizontal movement of the lifting frame 431 relative to the frame 1. The control assembly 44 includes a mounting block 441, a second belt transmission mechanism 442 and an adjustment block 443. The mounting block 441 is slidably connected to the frame 1, and the sliding direction is the vertical direction. The second belt transmission mechanism 442 is arranged on the frame 1, and the second belt transmission mechanism 442 provides power for the movement of the mounting block 441. The mounting block 441 and the transmission belt of the second belt transmission mechanism 442 are fixedly connected, and the transmission belt runs up and down to carry the mounting block 441 to move vertically. The lifting frame 431 is installed on the adjustment block 443, and the adjustment block 443 is slidably connected to the mounting block 441, and the sliding direction is the horizontal direction. An adjusting motor 444 is provided on the mounting block 441, and an adjusting rocker arm 445 is fixedly connected to the output end of the adjusting motor 444, and the length direction of the adjusting rocker arm 445 is the radial direction of the output shaft of the adjusting motor 444; an adjusting connecting rod 446 is connected between the adjusting rocker arm 445 and the adjusting block 443, and one end of the adjusting connecting rod 446 is hinged to the adjusting rocker arm 445, and the other end is hinged to the adjusting block 443, and the hinge axes are parallel to the axis of the output shaft of the adjusting motor 444, that is, when the adjusting motor 444 is started, the output shaft rotates, and a pulling force or a pushing force is applied to the adjusting block 443 through the adjusting rocker arm 445 and the adjusting connecting rod 446, thereby driving the adjusting block 443 to move laterally, and the lifting frame 431 also moves laterally accordingly.

[0054] like Figure 2 and 7As shown, in order to make the lifting frame 431 as close as possible to the position between the lower crease roller 22 and the auxiliary roller 27, the upper part of the lifting frame 431 is a bending structure. Due to the existence of the bending structure, the upper size of the lifting frame 431 gradually decreases, so that it can be close to the gap between the two rollers. There are two lifting frames 431 and control components 44, and the two lifting frames 431 are arranged in mirror image. When receiving paper towels, the tops of the two lifting frames 431 are both in a horizontal posture.

[0055] like Figure 2 , 7 As shown in FIG. 8 , the connection between the lifting frame 431 and the adjusting block 443 is hinged, and the hinge shaft is parallel to the axis of the auxiliary roller 27. The control assembly 44 also includes a balancing assembly 45, and the balancing assembly 45 is used to adjust the posture of the lifting frame 431 relative to the adjusting block 443. The balancing assembly 45 includes a balancing motor 451 and a balancing connecting rod 453. The balancing motor 451 is installed on the frame 1. The output end of the balancing motor 451 is fixedly connected to a balancing swing rod 452. The length direction of the balancing swing rod 452 is the radial direction of the output shaft of the balancing motor 451. One end of the balancing connecting rod 453 is hinged to the balancing swing rod 452, and the other end is hinged to the lifting frame 431. The axis of the hinge shaft is parallel to the output axis of the balancing motor 451. When the adjusting block 443 moves, the balancing swing rod 452 and the balancing connecting rod 453 also swing, so that the two hinge shafts on the lifting frame 431 maintain a fixed relative position, so that the lifting frame 431 maintains a stable posture during the movement, that is, the upper side of the lifting frame 431 remains horizontal.

[0056] like Figure 2 , 8 As shown in FIG. 9 , the clamping assembly 41 includes two clamping frames 411 and a power assembly 42. The clamping frames 411 slide relative to the frame 1, and the sliding directions include vertical and horizontal directions. The lifting frame 431 and the clamping frame 411 both include a plurality of branch claws, and the branch claws pass through the gaps of the intercepting railing 112. The branch claws of the lifting frame 431 and the clamping frame 411 are arranged in an interlaced manner, that is, the interlaced operation of the lifting frame 431 and the clamping frame 411 does not affect each other. When the stack of paper towels on the lifting frame 431 forms a certain weight and the lifting frame 321 drops to a certain height, the clamping frame 411 moves up to the lifting frame 431 to continue to receive the stack of paper towels. At this time, the lifting frame 431 can leave the stack of paper towels, and the lifting frame 431 does not need to support this part of the stack of paper towels. It can move horizontally away from the stack of paper towels and move up to the lower crease roller 22 and the auxiliary roller 27 to receive the next stack of paper towels. During the upward movement, the balancing component 45 is first activated to turn the upper part of the lifting frame 431 outward, so that the stack of paper towels will not affect the upward movement of the lifting frame 431. When the lifting frame 431 moves up to the position of the lower crease roller 22 and the auxiliary roller 27, the balancing component 45 is activated to turn the upper part of the lifting frame 431 inward, and it is horizontal again to receive paper towels.

[0057] like Figure 2 and 10 As shown, when the upper part of the lifting frame 431 is stacking and receiving the paper towels again, one of the clamping frames 411 remains below the original paper towel stack, and the other clamping frame 411 moves to the top of the original paper towel stack, that is, to the same height as the bending structure of the lifting frame 431. The two clamping frames 411 form a clamping and abutting contact with the stacking blocks. At this time, the clamping frames 411 clamp and fix the paper towel stack, and then the clamping frames 411 can carry the paper towel stack downward to get closer to the conveyor belt 111, and at the same time, tear the paper towel stack and the paper towels above the lifting frame 431 apart, so that the single paper towel stack can be detached from the continuous production line.

[0058] like Fig.10 As shown, when the two lifting racks 431 are inserted from both sides of the paper towel to the bottom of the paper towel, the breakpoint fold of the lower edge of the paper towel directly in contact with the lifting rack 431 is located below the lifting rack 431. When the paper towel is torn off by the clamping rack 411, the lower half of the lowest paper towel on the lifting rack 431 is placed on the lifting rack 431 on the right side and hangs down from the gap between the two lifting racks. When the clamping rack 411 comes to the bottom of the lifting rack 431, the clamping rack 411 on the right side first reaches the height flush with the lifting rack 431 and moves to the left to the middle position, and then the clamping rack 411 on the left side moves up to a height slightly lower than the height of the clamping rack 411 on the right side and moves to the right, until the clamping rack 411 on the left side moves to fill the gap between the two groups of interception rails 112 in the horizontal direction, at which time the originally hanging part of the paper towel is placed on the clamping rack 411 on the left side, and a new fold is formed in the middle of the lower half of this paper towel. Subsequently, the clamping frame 411 on the right side moves horizontally to the right to withdraw from under the paper towels. At this point, the clamping frame 411 has completed the preparation work for receiving the bottom of the paper towel stacking block, and the lifting frame 431 can move horizontally to leave under the paper towel stacking block, and then the lifting frame 431 moves up to receive the next batch of paper towels, and the clamping frame 411 on the right side moves up to clamp the top of the original paper towel stack.

[0059] like Figure 2 , 7As shown in 8, the power assembly 42 includes a lifting seat 421, a first belt transmission mechanism 422, a transverse slider 423 and a power motor 424. The lifting seat 421 is slidably connected relative to the frame 1 along the vertical direction, the clamping frame 411 is connected to the lifting seat 421, the first belt transmission mechanism 422 is located on the frame 1, and the lifting seat 421 and the transmission belt of the first belt transmission mechanism 422 are fixedly connected. When the first belt transmission mechanism 422 is started, the lifting seat 421 can move up and down. The transverse sliding block 423 slides in the horizontal direction relative to the lifting seat 421, the clamping frame 411 is fixedly connected to the transverse sliding block 423, the power motor 424 is fixed on the lifting seat 421, the output end of the power motor 424 is fixedly connected to the power swing rod 425, and a power connecting rod 426 is connected between the power swing rod 425 and the transverse sliding block 423. One end of the power connecting rod 426 is hinged to the power swing rod 425, and the other end is hinged to the transverse sliding block 423. The hinge axis is parallel to the axis of the auxiliary roller 27. The slider connecting rod mechanism composed of the power swing rod 425, the power connecting rod 426 and the transverse sliding block 423 controls the lateral movement of the clamping frame 411. When the clamping frame 411 at the bottom contacts the conveyor belt 111, the power assembly 42 controls the clamping frame 411 to move horizontally, and the clamping frame 411 is separated from the paper towel stack. This part of the paper towel stack is successfully transported to the conveyor belt 111, and the clamping frame 411 can be reset to clamp and transport the subsequent paper towel stack.

[0060] The implementation principle of a fully automatic point-break continuous draw paper towel folding production line in the embodiment of the present application is: The front traction assembly 12 pulls the raw material into the frame 1, and then the spray assembly sprays the raw material with liquid material, and the raw material becomes a wet paper towel, and continues to move into the crease assembly 2, and the crease assembly 2 forms continuous alternating creases on the paper towel, and a breakpoint is formed on one of the two continuous creases. After leaving the crease assembly 2, the paper towel naturally falls down to the lifting frame 431 and naturally stacks through its own creases. Whenever the amount of paper towels on the lifting frame 431 accumulates to a preset value, the clamping frame 411 clamps this part of the paper towels, and the lifting frame 431 moves horizontally to make way for the paper towels and the clamping frame 411, and then the clamping frame 411 is pulled down to tear this part of the paper towels and the paper towels on the crease assembly 2 through the breakpoint between the two. After the paper towels carried by the clamping frame 411 are transported to the conveyor belt 111, the clamping frame 411 leaves sideways, so that the next batch of paper towels can be clamped and transported.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic point-break continuous draw paper towel folding production line, comprising a frame (1), on which a crease assembly (2) is provided, characterized in that: The crease assembly (2) is used to perform crease processing and breakpoint processing on a paper towel. The crease assembly (2) comprises an upper crease roller (21) and a cutting roller (25). The paper towel passes between the upper crease roller (21) and the cutting roller (25). The upper crease roller (21) is provided with a ridge blade (211). The cutting roller (25) is provided with a cutting blade (26). The cutting roller (25) and the upper crease roller (21) are arranged in parallel. The cutting roller (25) and the upper crease roller (21) rotate at the same speed. The cutting blade (26) and the ridge blade (211) respectively abut against opposite sides of the paper towel. The blade of the scoring blade (26) comprises a plurality of continuous portions (261) and a plurality of breakpoint portions (262), wherein the continuous portions (261) and the breakpoint portions (262) are alternately arranged along the length direction of the scoring blade (26), and the breakpoint portions (262) comprise a plurality of breakpoint stabs (2621), wherein the breakpoint stabs (2621) are fixedly connected to the continuous portion (261), and the arrangement direction of the plurality of breakpoint stabs (2621) is consistent with the length direction of the scoring blade (26).

2. The fully automatic point-break continuous draw paper towel folding production line according to claim 1 is characterized by: The crease assembly (2) further comprises a lower crease roller (22), the lower crease roller (22) being provided with a crease ridge (221), the lower crease roller (22) being provided with a first matching groove (222), the upper crease roller (21) being provided with a second matching groove (212), the axes of the upper crease roller (21) and the lower crease roller (22) being parallel, the upper crease roller (21) and the lower crease roller (22) rotating at the same speed, the ridge blade (211) being correspondingly inserted into the first matching groove (222), the crease ridge (221) being correspondingly inserted into the second matching groove (212), and the paper towel passing between the upper crease roller (21) and the lower crease roller (22) after leaving the cutting roller (25).

3. The fully automatic point-break continuous draw paper towel folding production line according to claim 1 is characterized by: The crease assembly (2) further comprises an auxiliary roller (27), wherein the lower crease roller (22) and the auxiliary roller (27) are rotatably connected in parallel to the frame (1), and the paper towel passes between the lower crease roller (22) and the auxiliary roller (27), and the opposite sides of the paper towel respectively abut against the side walls of the lower crease roller (22) and the auxiliary roller (27), and the auxiliary roller (27) is provided with an auxiliary groove (271), and the auxiliary groove (27) is correspondingly inserted into the crease ridge (221); The frame (1) is provided with a receiving body (11), the receiving body (11) is located below the folding assembly (2), the frame (1) is provided with a ferry mechanism (4) between the folding assembly (2) and the receiving body (11), the ferry mechanism (4) comprises a clamping assembly (41), the clamping assembly (41) comprises two clamping frames (411) and a power assembly (42), the clamping frames (411) slide relative to the frame (1), and the sliding direction comprises a vertical direction and a horizontal direction, the paper towels leaving the folding assembly (2) are stacked above one of the clamping frames (411) to form a stacking block, the other clamping frame (411) is located above the stacking block, the two clamping frames (411) form a clamping contact with the stacking block, and the power assembly (42) is used to control the movement of the clamping frames (411).

4. The fully automatic point-break continuous draw paper towel folding production line according to claim 3 is characterized by: The upper crease roller (21), the lower crease roller (22) and the auxiliary roller (27) are each provided with a plurality of negative pressure chambers (23), and the plurality of negative pressure chambers (23) are arranged along the circumference of the upper crease roller (21), the lower crease roller (22) or the auxiliary roller (27). The upper crease roller (21), the lower crease roller (22) and the auxiliary roller (27) are each provided with an adsorption hole (231), one end of the adsorption hole (231) is connected to the negative pressure chamber (23), and the other end is located on the surface of the upper crease roller (21) or on the groove wall of the first matching groove (222) or on the groove wall of the auxiliary groove (271). The frame (1) is provided with an air supply body (24), and an air supply channel (242) is provided in the air supply body (24), and the air supply channel (242) is selectively connected to each negative pressure chamber (23).

5. The fully automatic point-break continuous draw paper towel folding production line according to claim 3 is characterized by: The frame (1) is also provided with a folding drive mechanism (3), the folding drive mechanism (3) comprising a driving motor (31), a reducer (32), a first gear (33), a second gear (34), a cutting gear (35), an auxiliary gear (37) and a connecting gear (36), the first gear (33) and the upper crease roller (21) are coaxially connected, the second gear (34) and the lower crease roller (22) are coaxially connected, the cutting gear (35) and the cutting roller (25) are coaxially connected, the auxiliary gear (37) and the auxiliary roller (27) are coaxially connected, the output end of the reducer (32), the first gear (33), the second gear (34) and the auxiliary gear (37) are meshed in sequence, and the connecting gear (36) is meshed between the first gear (33) and the cutting gear (35).

6. The fully automatic point-break continuous draw paper towel folding production line according to claim 3 is characterized by: The power assembly (42) comprises a lifting seat (421) and a first belt transmission mechanism (422); the lifting seat (421) is slidably connected relative to the frame (1) in a vertical direction; the clamping frame (411) is connected to the lifting seat (421); the first belt transmission mechanism (422) is located on the frame (1); and the lifting seat (421) and the transmission belt of the first belt transmission mechanism (422) are fixedly connected.

7. The fully automatic point-break continuous draw paper towel folding production line according to claim 6 is characterized by: The power assembly (42) further comprises a transverse sliding block (423), wherein the transverse sliding block (423) slides in a horizontal direction relative to the lifting seat (421), the clamping frame (411) is fixedly connected to the transverse sliding block (423), the lifting seat (421) is provided with a power motor (424), the output end of the power motor (424) is fixedly connected to a power swing rod (425), a power connecting rod (426) is connected between the power swing rod (425) and the transverse sliding block (423), one end of the power connecting rod (426) is hinged to the power swing rod (425), and the other end is hinged to the transverse sliding block (423).

8. A fully automatic point-break continuous draw paper towel folding production line according to claim 6 or 7, characterized in that: The ferry mechanism (4) further comprises a receiving assembly (43), wherein the receiving assembly (43) comprises a lifting frame (431) and a control assembly (44), wherein the control assembly (44) is used to control the vertical or horizontal movement of the lifting frame (431) relative to the frame (1).

9. The fully automatic point-break continuous draw paper towel folding production line according to claim 8, characterized in that: The receiving body (11) comprises a conveyor belt (111) and an intercepting railing (112); the conveyor belt (111) is connected to the frame (1); the intercepting railing (112) and the frame (1) are fixedly connected and are located on opposite sides of the conveyor belt (111); the lifting frame (431) and the clamping frame (411) both comprise a plurality of branch claws, the branch claws pass through the gaps of the intercepting railing (112); and the branch claws of the lifting frame (431) and the clamping frame (411) are arranged in a staggered manner.

10. The fully automatic point-break continuous draw paper towel folding production line according to claim 6, characterized in that: The frame (1) is also provided with a front traction assembly (12), the front traction assembly (12) comprising two traction rollers (121), the traction rollers (121) and the frame (1) being rotatably connected, the paper towel passing between the two traction rollers (121) and abutting against the roller surfaces of the two traction rollers (121), and a spray mechanism (5) is provided on the frame (1) and between the folding assembly (2) and the front traction assembly (12), the spray mechanism (5) comprising a spray pipe (51) and A drain trough (52), paper towels pass through the spray pipe (51) and the drain trough (52), the spray pipe (51) is located above the paper towels and the spray pipe (51) is provided with a nozzle facing the paper towels, the drain trough (52) is located below the paper towels, and the spray mechanism (5) further comprises a lifting cylinder (53), the cylinder body of the lifting cylinder (53) is fixedly connected to the frame (1), the piston rod is rotatably connected to the spray pipe (51), and the rotation axis and the nozzle of the spray pipe (51) are perpendicular.

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