CN211283062U - Cutter type automatic winding station - Google Patents

Abstract

The utility model provides a cut-off knife type automatic rolling station, which comprises a frame and a roller fulcrum shaft which is rotatably arranged on the frame, wherein a rolling roller driven by a first driving mechanism is fixedly arranged on the roller fulcrum shaft, a roll changing mechanism and a cut-off knife mechanism are arranged above the roller fulcrum shaft, a pressurizing shaft and a discharging shaft driven by a second driving mechanism are also rotatably arranged in the frame, two ends of the pressurizing shaft are respectively and fixedly provided with a pressurizing arm driven by a first pressurizing cylinder to rotate, each pressurizing arm is provided with a pressing block, each pressurizing arm is also provided with a stretching mechanism which is arranged opposite to the pressing block, two ends of the discharging shaft are respectively and fixedly provided with a discharging arm arranged on one side of the corresponding pressurizing arm, and each discharging arm is provided with a discharging groove, the utility model discloses can realize automatic discharging and automatic rolling and roll changing after completion, improves the automation degree of the rolling station, and greatly improves the simplicity and convenience of operation, the labor cost is reduced, and the winding device has the characteristics of high working efficiency and high winding stability.

Description

Cutter type automatic winding station

Technical Field

The utility model belongs to the technical field of the printing machine coiling mechanism technique and specifically relates to a cut-off knife formula automatic winding station is related to.

Background

The printing machine is a kind of machine for printing characters and images, generally composed of mechanisms such as plate-loading, inking, stamping, paper-conveying (including folding), etc., and its working principle is: the characters and images to be printed are made into a printing plate, the printing plate is installed on a printing machine, then ink is coated on the position, where the characters and images are located, of the printing plate by a person or the printing machine, and then the printing plate is directly or indirectly transferred onto paper or other printing materials (such as textiles, metal plates, plastics, leather, templates, glass and ceramics) so as to copy printed matters identical to the printing plate, and after printing is completed, the printing paper needs to be rolled up by a rolling-up station.

In the existing winding station, the following problems mainly exist: the first is that no part for limiting the air expansion shaft is arranged, in the winding process, the outer wall of the paper roll is easily separated from the outer side wall of the winding roller along with the rolling of the air expansion shaft, so that printing paper cannot be wound on the air expansion shaft, the winding effect of the printing paper is influenced, the automatic blanking cannot be performed after the winding of the paper roll is completed, and a heavy paper roll can be moved from a rack by the cooperation of multiple workers; secondly, the existing winding station can not automatically change the roll, the time is required for workers to move the rolled paper roll and replace the new air expansion shaft, and the winding roller can not drive the printing paper to continue winding in the rotating process in the period of time, so that the printing paper is accumulated in the winding station, and the working efficiency of the winding station is seriously influenced.

Therefore, there is a need for a cutter type automatic winding station that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cut-off knife formula automatic winding station can realize automatic unloading and the automatic roll change after the rolling is accomplished, has improved the degree of automation at rolling station, has greatly promoted the simplicity and convenience of rolling operation, has reduced labour's cost, has work efficiency height, characteristics that rolling stability is high.

The technical scheme of the utility model is realized like this:

the automatic cutter type winding station comprises a rack and a roller fulcrum shaft rotatably arranged on the rack, a winding roller driven by a first driving mechanism is fixedly arranged on the roller fulcrum shaft, a roll changing mechanism and a cutter mechanism are arranged above the roller fulcrum shaft, a pressurizing shaft and a blanking shaft driven by a second driving mechanism are rotatably arranged in the frame, the pressurizing shaft and the blanking shaft are both parallel to the roller fulcrum shaft, two ends of the pressurizing shaft are respectively and fixedly provided with a pressurizing arm driven by a first pressurizing cylinder to rotate, each pressurizing arm is provided with a pressing block for pressing the air expansion shaft onto the winding roller, each pressurizing arm is also provided with an extending mechanism opposite to the pressing block, and two ends of the blanking shaft are respectively and fixedly provided with a blanking arm arranged on one side corresponding to the pressurizing arm, and each blanking arm is provided with a blanking groove.

As a preferred technical scheme, the reel changing mechanism comprises two mandrel supporting seats which are rotatably installed at two ends of the roller support shaft respectively, one mandrel supporting seat is driven by a third driving mechanism, a vertically arranged linear guide rail is arranged on one side wall of each mandrel supporting seat, a mandrel supporting plate used for supporting the air expansion shaft is slidably installed on each linear guide rail, the two mandrel supporting plates are oppositely arranged and are driven to slide by a second pressurizing cylinder, a mandrel fixing groove is formed in each mandrel supporting plate, and a fixing block driven by a locking cylinder is slidably installed on the side wall of each mandrel fixing groove.

As an optimal technical scheme, cut-off knife mechanism includes two relatively fixed in arm fixing base in the frame, each arm fixing base all sets up in corresponding one side of dabber supporting seat, two rotate jointly on the arm fixing base and install one be on a parallel with rolling cylinder's rotation axis, the both ends of rotation axis are provided with one respectively and are the arc setting and by a pressurized oil cylinder driven arm, each the equal fixed mounting in of one end of arm in on the rotation axis, each the equal slidable mounting of the other end of arm has a blade fixed plate by third pressurized air cylinder driven, two be fixed with a parallel with on the blade fixed plate jointly rolling cylinder's cut-off knife.

As a preferable technical scheme, the cut-off knife mechanism further comprises two side plates which are respectively rotatably arranged at two ends of the roller fulcrum shaft, the two side plates are respectively arranged at two sides of the winding roller, a power shaft driven by a reel changing motor is rotatably arranged in the frame, the power shaft is parallel to the winding roller, two ends of the power shaft are respectively and fixedly provided with a driving chain wheel, each side plate is fixed with a set of driven chain wheels arranged on the roller fulcrum shaft, each driven chain wheel and the corresponding driving chain wheel are jointly wound with a transmission chain, a supporting shaft parallel to the roller fulcrum shaft is further jointly and rotatably arranged between the two side plates, one side of the supporting shaft is provided with a knife seam supporting block parallel to the supporting shaft, and two ends of the knife seam supporting block are respectively fixed on the corresponding side plates.

As a preferred technical scheme, each stretching mechanism comprises a stretching cylinder fixed on the side wall of the pressurizing arm, a shifting fork slidably mounted on the pressurizing arm is arranged on a piston rod of each stretching cylinder, and each shifting fork is opposite to the corresponding pressing block.

As a preferable technical solution, a first guide roller, a second guide roller and a third guide roller which are sequentially arranged along an advancing direction of the printing paper are further rotatably installed in the frame, the first guide roller, the second guide roller and the third guide roller are all parallel to the winding drum, the first guide roller, the second guide roller and the third guide roller are all arranged in an upstream direction of the winding drum, and a floating mechanism for adjusting tension of the printing paper is further arranged on the frame.

As an optimal technical scheme, the relocation mechanism including set up in mount pad on the wall of frame both sides, two rotate jointly on the mount pad install one be on a parallel with the swing arm axle of rolling cylinder, one end of swing arm axle is still installed one and is used for detecting the tensile encoder gear of printing paper, the both ends of swing arm axle respectively fixed mounting have one by tensioning oil cylinder drive pivoted pendulum rod, two rotate jointly on the pendulum rod install one be on a parallel with the tensioning roller of swing arm axle, the tensioning roller set up in the top of first guide roller just set up in the below of second guide roller.

As a preferred technical scheme, first actuating mechanism include inverter motor and fixed mounting in the epaxial first synchronous pulley of inverter motor, rotate in the frame and install one and be on a parallel with take-up drum's transmission shaft, fixed mounting has the second synchronous pulley on the transmission shaft, together around being equipped with a first synchronous belt on first synchronous pulley and the second synchronous pulley, still be fixed with a third synchronous pulley on the transmission shaft, the one end of cylinder fulcrum shaft is through a straining sleeve fixed mounting has a fourth synchronous pulley, the third synchronous pulley with together around being equipped with a second synchronous belt on the fourth synchronous pulley.

As a preferred technical scheme, the second driving mechanism comprises two discharging oil cylinders which are respectively rotatably installed on the two side walls of the rack, and two ends of the discharging shaft correspond to the discharging oil cylinders, and a first connecting rod is respectively hinged between the two ends of the discharging shaft and the corresponding discharging oil cylinders.

As a preferred technical scheme, the third driving mechanism comprises a reel changing oil cylinder fixed on one side wall of the rack, a piston rod of the reel changing oil cylinder is hinged with one end of a second connecting rod, the middle part of the second connecting rod is rotatably installed on the rack through an installation shaft, and the other end of the second connecting rod and the corresponding mandrel supporting seat are hinged with a third connecting rod together.

By adopting the technical scheme, the beneficial effects of the utility model are that:

because the automatic rolling station of cutting knife formula includes frame, cylinder counter roll and rolling cylinder, the rolling cylinder is driven by first actuating mechanism and rotates, when using the utility model discloses the time, inverter motor passes through first hold-in range transmission power, drives transmission shaft, second synchronous pulley and third synchronous pulley and rotates, and third synchronous pulley transmits power to fourth synchronous pulley through the second hold-in range, and fourth synchronous pulley and cylinder counter roll pass through the tensioning of tensioning sleeve, make cylinder counter roll and rolling cylinder become a part to realize the transmission of power, drive the rolling cylinder and rotate; inverter motor can be according to the difference of printing paper thickness, material, through the slew velocity of converter control cylinder counter roll and rolling cylinder, can carry out the rolling with the not equidistance to the printing paper of different thickness, material, avoids the thin printing paper of material to be damaged because of the coiling speed is too high at the rolling in-process, has also avoided the printing paper that the material is thick to cross the problem that causes the coiling inefficiency because of the coiling speed is low excessively at the rolling in-process, has enlarged the utility model discloses an application scope.

Because the frame is provided with the pressure arm and the blanking arm, when the utility model is used, two first pressure cylinder piston rods are simultaneously recovered, the two pressure arms are driven to rotate by taking the pressure shaft as a fulcrum at the same time, the pressure block on the pressure arms can press the air expansion shaft onto the winding roller, the winding roller rotates to drive the air expansion shaft to rotate, the printing paper is wound onto the air expansion shaft, the winding action is realized, the diameter of the paper roll on the air expansion shaft is continuously increased in the winding process, the piston rods of the first pressure cylinders are popped out at a uniform speed, the pressure arms are driven to rotate towards the blanking arm by taking the pressure shaft as the fulcrum, and the air expansion shaft and the paper roll are driven to continuously move outwards; when the paper roll moves to the limiting position of the discharging arm, the height of the pressing block on the pressurizing arm is lower than that of the upper and lower material grooves of the discharging arm, the air expansion shaft continues to move outwards to enter the lower material groove on the discharging arm, and the piston rod of the discharging oil cylinder extends out to drive the discharging arm to rotate by taking the lower material shaft as a pivot, so that the paper roll is driven to fall down, and discharging is completed.

In the utility model, a pressure arm for pressing the air expansion shaft is additionally arranged, so that the side wall of the paper roll wound on the air expansion shaft always abuts against the side wall of the winding roller, the problem that the paper roll is easy to separate from the winding roller is solved, and the winding effect of the air expansion shaft is ensured; and still be provided with the unloading arm that is used for the automatic unloading of scroll in the frame, make the utility model discloses can realize automatic unloading, need not many staff's cooperation and move heavy scroll from the frame, the operation at rolling station just can be accomplished alone, at the in-process of whole rolling and unloading, the staff only need with the inflatable shaft place in the frame can, loading arm and unloading arm in the rolling station can accomplish the rolling to printing paper and the unloading action of scroll automatically, can accomplish the unloading of scroll under the condition that the printing machine does not shut down, the simplicity and convenience of rolling station rolling operation and the work efficiency of printing machine have greatly been improved, the labour cost has been saved, staff's intensity of labour has also been reduced.

Because the roll changing mechanism and the cutter mechanism are arranged above the roller fulcrum shaft, when a first roll of paper is fully rolled, one side of the frame is provided with the operating platform, a worker presses a roll changing key on the operating platform, a piston rod of a locking cylinder on the mandrel supporting plate is popped out to drive a fixed block to extend into a mandrel fixed groove to fix the inflatable shaft, meanwhile, a piston rod of the second pressurizing cylinder is recovered to drive the mandrel supporting plate to move downwards along a linear guide rail, double faced adhesive tape is wound on the outer side wall of the inflatable shaft in advance, when the cutter cuts off the printing paper, the printing paper is adhered to the inflatable shaft by the double faced adhesive tape on the inflatable shaft, the inflatable shaft is abutted against the rolling roller by the second pressurizing cylinder and rotates synchronously with the rolling roller, thereby realizing the roll changing function, in the utility model, automatic roll changing is realized by the roll changing mechanism and the cutter mechanism, and the cutting of the printing paper and the replacement of the inflatable shaft do not need to be manually carried out by the, greatly improved the utility model discloses an degree of automation has shortened required time when rolling station roll change, has improved the work efficiency at rolling station, has improved rolling, unloading and the simplicity and convenience of roll change operation at rolling station simultaneously, has reduced the required labour cost who drops into in the printing machine rolling process.

Because be provided with the extension mechanism on the loading arm, the inflatable shaft in the mandrel fixed slot carries out constantly rolling to the printing paper in the roll change in-process, the scroll diameter variation of the epaxial rolling of inflatable in the mandrel fixed slot when will accomplishing the roll change, can adjust the length that the shift fork stretches out according to the size of scroll diameter, the diameter of scroll is the biggest tangent with the home range of shift fork, also guarantee all the time for the briquetting on the loading arm compresses tightly on the scroll lateral wall, avoid the shift fork to stretch out length too big the shift fork that appears and press the scroll lateral wall, can cause the shift fork can't dial inflatable shaft to lower silo and can't accomplish automatic unloading, consequently, the extension mechanism can guarantee the utility model discloses the smooth completion of automatic unloading action.

Because the frame is also provided with the floating mechanism, in the embodiment, the tensioning cylinder adopts the low-friction cylinder, the starting pressure of the low-friction cylinder is very small, and the low-friction cylinder can respond sensitively under the condition of slight pressure change, therefore, in the winding process, when the rotating speed of the winding roller is higher than the unwinding speed of the printing paper in the last process of the winding station, the tension applied to the printing paper is increased, the piston rod of the tensioning cylinder is recovered to drive the oscillating bar to rotate by taking the oscillating arm shaft as a fulcrum, the tensioning roller is driven to be close to the first guide roller and the second guide roller, so as to reduce the tension on the printing paper, and similarly, when the rotating speed of the winding roller is less than the unwinding speed of the printing paper in the last process of the winding station, the tension on the printing paper is reduced, the piston rod of the tensioning cylinder is popped up to drive the tensioning roller to be away from the first guide roller and the second guide roller, and the tension on the printing paper is increased to ensure that the printing paper is kept in a tensioned state all the time; meanwhile, the encoder gear rotates along with the rotation of the swing rod and the swing arm shaft to detect the tension of the printing paper, so that the tension of the printing paper is accurately controlled, and the rolling stability of the printing paper in the rolling station is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the roll changing mechanism of the present invention;

FIG. 3 is a schematic structural view of the reel change mechanism when the reel change is completed;

FIG. 4 is a schematic structural view of the cutting mechanism of the present invention;

fig. 5 is a schematic structural view of the floating mechanism of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

fig. 7 is a schematic structural diagram of the first driving mechanism of the present invention.

Wherein: 1. a frame; 2. a drum fulcrum; 3. a winding roller; 4. a pressurizing shaft; 5. a blanking shaft; 6. a first pressurizing cylinder; 7. a pressurizing arm; 8. an air expansion shaft; 9. briquetting; 10. a blanking arm; 11. a discharging groove; 12. a mandrel support seat; 13. a linear guide rail; 14. a mandrel pallet; 15. a second pressurizing cylinder; 16. a mandrel fixing groove; 17. a locking cylinder; 18. a fixed block; 19. a cutter arm fixing seat; 20. a rotating shaft; 21. a pressurizing oil cylinder; 22. a cutter arm; 23. a third pressurized cylinder; 24. a blade fixing plate; 25. a cutter; 26. a side plate; 27. a reel changing motor; 28. a power shaft; 29. a drive sprocket; 30. a driven sprocket; 31. a drive chain; 32. a support shaft; 33. a knife seam supporting block; 34. extending out of the cylinder; 35. a shifting fork; 36. a first guide roller; 37. a second guide roller; 38. a third guide roller; 39. a mounting seat; 40. a swing arm shaft; 41. an encoder gear; 42. tensioning the oil cylinder; 43. a swing rod; 44. a tension roller; 45. a variable frequency motor; 46. a first timing pulley; 47. a drive shaft; 48. a second timing pulley; 49. a first synchronization belt; 50. a third synchronous pulley; 51. a fourth timing pulley; 52. a second synchronous belt; 53. a blanking oil cylinder; 54. a first link; 55. a reel changing oil cylinder; 56. a second link; 57. installing a shaft; 58. and a third link.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the cut-off knife type automatic winding station includes a frame 1 and a roller support shaft 2 rotatably mounted on the frame 1, a winding roller 3 driven by a first driving mechanism is fixedly mounted on the roller support shaft 2, a reel changing mechanism and a cut-off knife mechanism are arranged above the roller support shaft 2, a pressurizing shaft 4 and a discharging shaft 5 driven by a second driving mechanism are rotatably mounted in the frame 1, the pressurizing shaft 4 and the discharging shaft 5 are both parallel to the roller support shaft 2, pressurizing arms 7 driven to rotate by a first pressurizing cylinder 6 are respectively and fixedly mounted at two ends of the pressurizing shaft 4, a pressing block 9 for pressing an air expanding shaft 8 onto the winding roller 3 is arranged on each pressurizing arm 7, an extending mechanism arranged opposite to the pressing block 9 is further arranged on each pressurizing arm 7, a discharging arm 10 arranged at one side of the corresponding pressurizing arm 7 is respectively and fixedly mounted at two ends of the discharging shaft 5, and a discharging groove 11 is arranged on each discharging arm 10.

As shown in fig. 2 and fig. 3, the reel changing mechanism includes two mandrel supporting seats 12 rotatably installed at two ends of the roller supporting shaft 2, one of the mandrel supporting seats 12 is driven by a third driving mechanism, a vertically arranged linear guide rail 13 is disposed on a side wall of each mandrel supporting seat 12, a mandrel supporting plate 14 for supporting the air expansion shaft 8 is slidably installed on each linear guide rail 13, the two mandrel supporting plates 14 are oppositely disposed and are driven to slide by a second pressurizing cylinder 15, a mandrel fixing groove 16 is disposed on each mandrel supporting plate 14, and a fixing block 18 driven by a locking cylinder 17 is slidably installed on a side wall of each mandrel fixing groove 16.

As shown in fig. 5, the cutting mechanism includes two blade arm fixing seats 19 fixed relatively to the frame 1, each blade arm fixing seat 19 is disposed on one side of the corresponding mandrel supporting seat 12, a rotating shaft 20 parallel to the winding drum 3 is installed on the two blade arm fixing seats 19 in a rotating manner, two ends of the rotating shaft 20 are respectively provided with a blade arm 22 disposed in an arc shape and driven by a pressure cylinder 21, one end of each blade arm 22 is fixedly installed on the rotating shaft 20, the other end of each blade arm 22 is slidably installed with a blade fixing plate 24 driven by a third pressure cylinder 23, and a cutting knife 25 parallel to the winding drum 3 is fixed on the two blade fixing plates 24.

The cutting knife 25 mechanism further comprises two side plates 26 rotatably mounted at two ends of the roller support shaft 2 respectively, the two side plates 26 are arranged at two sides of the winding roller 3 respectively, a power shaft 28 driven by a winding change motor 27 is rotatably mounted in the rack 1, the power shaft 28 is parallel to the winding roller 3, two ends of the power shaft 28 are fixedly mounted with a driving sprocket 29 respectively, a set of driven sprockets 30 mounted on the roller support shaft 2 are fixed on each side plate 26, a transmission chain 31 is wound on each driven sprocket 30 and the corresponding driving sprocket 29 together, a support shaft 32 parallel to the roller support shaft 2 is further rotatably mounted between the two side plates 26 together, a knife seam support block 33 parallel to the support shaft 32 is arranged at one side of the support shaft 32, and two ends of the knife seam support block 33 are fixed on the corresponding side plates 26 respectively.

Each extending mechanism comprises an extending cylinder 34 fixed on the side wall of the pressurizing arm 7, a shifting fork 35 slidably mounted on the pressurizing arm 7 is arranged on a piston rod of each extending cylinder 34, and each shifting fork 35 is arranged opposite to the corresponding pressing block 9.

Furthermore, a first guide roller 36, a second guide roller 37 and a third guide roller 38 which are arranged in sequence along the advancing direction of the printing paper are rotatably arranged in the frame 1, the first guide roller 36, the second guide roller 37 and the third guide roller 38 are all parallel to the winding cylinder 3, the first guide roller 36, the second guide roller 37 and the third guide roller 38 are all arranged in the upstream direction of the winding cylinder 3, and a floating mechanism for adjusting the tension of the printing paper is further arranged on the frame 1.

As shown in fig. 5 and 6, the floating mechanism includes mounting seats 39 disposed on two side walls of the frame 1, a swing arm shaft 40 parallel to the winding drum 3 is rotatably mounted on the two mounting seats 39, an encoder gear 41 for detecting tension of the printing paper is further mounted at one end of the swing arm shaft 40, swing rods 43 driven to rotate by tensioning cylinders 42 are fixedly mounted at two ends of the swing arm shaft 40, a tensioning roller 44 parallel to the swing arm shaft 40 is rotatably mounted on the two swing rods 43, and the tensioning roller 44 is disposed above the first guide roller 36 and below the second guide roller 37.

As shown in fig. 7, the first driving mechanism includes a variable frequency motor 45 and a first synchronous pulley 46 fixedly mounted on a motor shaft of the variable frequency motor 45, a transmission shaft 47 parallel to the winding drum 3 is rotatably mounted on the frame 1, a second synchronous pulley 48 is fixedly mounted on the transmission shaft 47, a first synchronous belt 49 is wound on the first synchronous pulley 46 and the second synchronous pulley 48 together, a third synchronous pulley 50 is further fixed on the transmission shaft 47, a fourth synchronous pulley 51 is fixedly mounted at one end of the drum fulcrum shaft 2 through a tensioning sleeve, and a second synchronous belt 52 is wound on the third synchronous pulley 50 and the fourth synchronous pulley 51 together.

In addition, the second driving mechanism comprises two discharging oil cylinders 53 which are respectively and rotatably installed on two side walls of the frame 1, and a first connecting rod 54 is respectively and jointly hinged between two ends of the discharging shaft 5 and the corresponding discharging oil cylinders 53.

The third driving mechanism comprises a reel changing oil cylinder 55 fixed on one side wall of the rack 1, one end of a second connecting rod 56 is hinged on a piston rod of the reel changing oil cylinder 55, the middle part of the second connecting rod 56 is rotatably installed on the rack 1 through a mounting shaft 57, and a third connecting rod 58 is hinged between the other end of the second connecting rod 56 and the corresponding mandrel supporting seat 12.

Use the utility model discloses a process as follows:

first, an operator can place an inflatable shaft 8 on frame 1, one side of frame 1 is provided with the operation panel, staff's accessible operation panel control first pressurized cylinder 6 piston rod is retrieved, drive loading arm 7 and rotate toward the direction of take-up roll 3 place, briquetting 9 on the loading arm 7 presses inflatable shaft 8 to take-up roll 3, then control inverter motor 45 through the operation panel and start, inverter motor 45 drives cylinder counter shaft 2 and take-up roll 3 through power transmission and rotates, take-up roll 3 rotates and drives inflatable shaft 8 and rotate and make printing paper roll to inflatable shaft 8, in the rolling-up process, the piston rod of first pressurized cylinder 6 outwards pops out with even speed, and drive loading arm 7 and move down arm 10 direction.

And secondly, when the first paper roll is fully wound, a worker presses a roll changing key on the operating platform, a piston rod of a locking cylinder 17 on a mandrel supporting plate 14 is popped out to drive a fixing block 18 to extend into a mandrel fixing groove 16 to fix an inflatable shaft 8, a piston rod of a second pressurizing cylinder 15 is recovered to drive a walking supporting plate to move downwards along a linear guide rail 13, meanwhile, a roll changing motor 27 is started to drive a power shaft 28 and a driving sprocket 29 to rotate, the driving sprocket 29 drives a driven sprocket 30 and a side plate 26 to rotate through a transmission chain 31, the side plate 26 rotates upwards, a supporting shaft 32 and a knife seam supporting block 33 upwards support printing paper, and the side plate 26 moves to the position of a cutter 25 for cutting paper by virtue of a limit switch.

And thirdly, after the cutting preparation action is completed, a piston rod of the pressurizing oil cylinder 21 is recovered, the cutter arm 22 is driven to rotate downwards by taking the rotating shaft 20 as a fulcrum, when the stroke limit of the piston rod of the pressurizing oil cylinder 21 is reached, the inflatable shaft 8 is just abutted against the winding roller 3, the piston rod of the third pressurizing air cylinder 23 is ejected at the moment, the cutter fixing plate 24 and the cutter 25 are driven to eject downwards, the cutter 25 extends out to cut the paper, the inflatable shaft 8 on the mandrel supporting plate 14 is pressed on the winding roller 3 while the cutter 25 cuts the paper, the printing paper is stuck by the double faced adhesive tape which is stuck in advance on the inflatable shaft 8, and the inflatable shaft 8 abuts against the winding roller 3 by the second pressurizing air cylinder 15 and rotates synchronously with the winding roller 3.

And fourthly, the piston rod of the first pressurizing cylinder 6 continues to extend outwards, the pressurizing arm 7 and the first paper roll which is rolled up are driven to continue to move outwards, when the piston rod moves to the limiting position of the discharging arm 10, the height position of the pressing block 9 on the pressurizing arm 7 can be lower than the height position of the upper and lower troughs 11 on the discharging arm 10, the air expansion shaft 8 rolls into the lower trough 11 on the discharging arm 10, the piston rod of the discharging oil cylinder 53 extends out, the lower material shaft 5 below the discharging arm 10 is driven to rotate downwards as a fulcrum, the paper roll which is rolled up is driven to fall, and therefore discharging of the first paper roll is completed.

Fifthly, after the first paper roll is discharged, a piston rod of the roll changing oil cylinder 55 extends out to drive the second connecting rod 56 to rotate by taking the mounting shaft 57 as the center, the second connecting rod 56 rotates to drive the third connecting rod 58 to rotate, the third connecting rod 58 drives the mandrel supporting seat 12 to rotate by taking the roller fulcrum 2 as the fulcrum, the mandrel supporting seat 12 is laid on the top of the rack 1, the piston rod of the first pressurizing air cylinder 6 is recovered to drive the pressurizing arm 7 to rotate by taking the pressurizing shaft 4 as the fulcrum, so that a pressing block 9 on the pressurizing arm 7 presses a new air expansion shaft 8 onto the rolling roller 3, and the rolling of the second paper roll is started.

To sum up, the utility model provides a cut-off knife formula automatic winding station can realize automatic unloading and the automatic roll change after the rolling is accomplished, has improved the degree of automation at rolling station, has greatly promoted the simplicity and convenience of rolling operation, has reduced labour's cost, has the characteristics that work efficiency is high, rolling stability is high.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The automatic cutting knife winding station is characterized by comprising a rack and a roller fulcrum shaft rotatably mounted on the rack, wherein a winding roller driven by a first driving mechanism is fixedly mounted on the roller fulcrum shaft, a reel changing mechanism and a cutting knife mechanism are arranged above the roller fulcrum shaft, a pressurizing shaft and a discharging shaft driven by a second driving mechanism are further rotatably mounted in the rack, the pressurizing shaft and the discharging shaft are both parallel to the roller fulcrum shaft, pressurizing arms driven to rotate by a first pressurizing cylinder are respectively and fixedly mounted at two ends of the pressurizing shaft, a pressing block for pressing an air expansion shaft onto the winding roller is arranged on each pressurizing arm, an extending mechanism opposite to the pressing block is further arranged on each pressurizing arm, and a discharging arm arranged at one side corresponding to the pressurizing arm is respectively and fixedly mounted at two ends of the discharging shaft, each blanking arm is provided with a blanking groove.

2. A cutter-type automatic winding station according to claim 1, wherein said reel changing mechanism comprises two spindle supports rotatably mounted at two ends of said roller spindle, one of said spindle supports being driven by a third driving mechanism, a vertically disposed linear guide being disposed on a side wall of each of said spindle supports, a spindle support plate being slidably mounted on each of said linear guide for supporting said air-expansion shaft, said two spindle support plates being disposed opposite to each other and being driven by a second pressurizing cylinder to slide, a spindle fixing groove being disposed on each of said spindle support plates, and a fixing block being slidably mounted on a side wall of each of said spindle fixing grooves and being driven by a locking cylinder.

3. The cut-off knife type automatic winding station according to claim 2, characterized in that the cut-off knife mechanism comprises two relatively fixed knife arm fixing seats on the frame, each knife arm fixing seat is arranged on one side corresponding to the mandrel supporting seat, two rotating shafts parallel to the winding drum are installed on the knife arm fixing seats in a co-rotating manner, two ends of each rotating shaft are respectively provided with a knife arm which is arranged in an arc shape and driven by a pressurizing oil cylinder, one end of each knife arm is fixedly installed on the rotating shaft, the other end of each knife arm is slidably installed with a blade fixing plate driven by a third pressurizing oil cylinder, and two cutting knives parallel to the winding drum are fixed on the blade fixing plates in a co-rotating manner.

4. The cut-off knife type automatic winding station according to claim 3, wherein the cut-off knife mechanism further comprises two side plates rotatably mounted on both ends of the roller support shaft, respectively, and disposed on both sides of the winding roller, a power shaft driven by a reel changing motor is rotatably arranged in the frame, the power shaft is parallel to the winding roller, two ends of the power shaft are respectively and fixedly provided with a driving chain wheel, each side plate is fixed with a set of driven chain wheels arranged on the roller fulcrum shaft, each driven chain wheel and the corresponding driving chain wheel are jointly wound with a transmission chain, a supporting shaft parallel to the roller fulcrum shaft is further jointly and rotatably arranged between the two side plates, one side of the supporting shaft is provided with a knife seam supporting block parallel to the supporting shaft, and two ends of the knife seam supporting block are respectively fixed on the corresponding side plates.

5. The cut-off knife type automatic winding station as claimed in claim 1, wherein each of the extension mechanisms includes an extension cylinder fixed to a side wall of the pressure arm, a piston rod of each of the extension cylinders is provided with a shift fork slidably mounted on the pressure arm, and each of the shift forks is disposed opposite to the corresponding pressure block.

6. The cut-off knife type automatic winding station according to claim 1, characterized in that a first guide roller, a second guide roller and a third guide roller are rotatably mounted in the frame in sequence along the advancing direction of the printing paper, the first guide roller, the second guide roller and the third guide roller are all parallel to the winding cylinder, the first guide roller, the second guide roller and the third guide roller are all arranged in the upstream direction of the winding cylinder, and a floating mechanism for adjusting the tension of the printing paper is further arranged on the frame.

7. The cut-off knife type automatic winding station according to claim 6, wherein the floating mechanism comprises mounting seats arranged on two side walls of the frame, two swing arm shafts parallel to the winding drum are mounted on the mounting seats in a co-rotating manner, an encoder gear for detecting tension of the printing paper is further mounted at one end of each swing arm shaft, swing rods driven to rotate by tensioning oil cylinders are respectively and fixedly mounted at two ends of each swing arm shaft, two tension rollers parallel to the swing arm shafts are mounted on the swing rods in a co-rotating manner, and the tension rollers are arranged above the first guide rollers and below the second guide rollers.

8. The cut-off knife type automatic winding station according to claim 1, wherein the first driving mechanism comprises a variable frequency motor and a first synchronous pulley fixedly mounted on a shaft of the variable frequency motor, a transmission shaft parallel to the winding drum is rotatably mounted on the frame, a second synchronous pulley is fixedly mounted on the transmission shaft, a first synchronous belt is wound on the first synchronous pulley and the second synchronous pulley together, a third synchronous pulley is further fixed on the transmission shaft, a fourth synchronous pulley is fixedly mounted at one end of the drum fulcrum shaft through a tensioning sleeve, and a second synchronous belt is wound on the third synchronous pulley and the fourth synchronous pulley together.

9. The cutter-type automatic winding station according to claim 1, wherein the second driving mechanism comprises two discharging cylinders rotatably mounted on two sidewalls of the frame, respectively, and a first connecting rod is respectively and jointly hinged between two ends of the discharging shaft and the corresponding discharging cylinders.

10. The cutter-type automatic winding station according to claim 2, wherein the third driving mechanism comprises a winding-changing cylinder fixed on a side wall of the frame, a piston rod of the winding-changing cylinder is hinged with one end of a second connecting rod, the middle part of the second connecting rod is rotatably mounted on the frame through a mounting shaft, and a third connecting rod is hinged between the other end of the second connecting rod and the corresponding mandrel supporting seat.

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