Disclosure of Invention
The invention provides a winding device of a coating machine, which aims to solve the technical problem that the tail part of the coating machine in the prior art is easy to generate wrinkles when the roll is changed, and the quality of a winding finished product is affected.
In order to solve the problems, the invention provides a winding device of a coating machine, which adopts the following technical scheme:
The utility model provides a coating machine coiling mechanism, includes coiling assembly, cutting knife assembly, and the coiling assembly includes the roll-over stand that the rotation axis extends around and installs two bilateral symmetry's on the roll-over stand roller, two sets of traction roller groups of upper and lower symmetric distribution, and the position of two rollers can be along with the roll-over stand rotation to be exchanged and form: the standby roller and the working roller which are distributed left and right can be formed by rotating and exchanging two traction roller groups along with the roll-over stand: the working traction roller set is used for guiding the film to the working roller, and the standby roller is used for winding a stub bar formed when the film is cut off; the cutter assembly comprises a cutter rest and a cutter arranged on the cutter rest, the cutter rest is movably arranged on the stand, and the cutter is used for cutting off a film positioned between the working traction roller set and the standby roller along with the rightward movement of the cutter rest;
The traction roller set comprises two inner traction rollers distributed left and right, a rubber belt sleeved on the inner traction rollers, and a belt driving mechanism for driving the inner traction rollers to rotate, wherein a plurality of adsorption grooves distributed in an array are arranged on the outer surface of the rubber belt and are used for forming negative pressure to suck the film when being extruded;
The cutter assembly also comprises a compression roller which is arranged on the cutter rest and extends forwards and backwards; the pinch roller is located the cutting knife upside and is relative about the roll surface of the interior traction roller that is in left side with work traction roller group to make the pinch roller can with interior traction roller extrusion each other when moving rightwards along with the knife rest rubber belt, and then make the absorption recess on the rubber belt warp in order to inhale the material tail of the film that laminates mutually with interior traction roller.
By adopting the technical scheme, the cutter assembly cuts off the film in the rightward moving process, the pinch roller presses the material tail of the film on the rubber belt and extrudes the rubber belt with the inner traction roller at the left side, so that the absorption groove deforms to generate negative pressure to absorb the material tail of the film on the rubber belt, the material tail is prevented from generating wrinkles due to rebound deformation caused by tension loss in the continuous winding process, and the quality of a finished product obtained by winding is better. The negative pressure adsorption effect through the adsorption groove fixes the material tail on the rubber belt, and compared with the process of setting up the compression roller above the rubber belt and pressing the film to fix the film, the negative pressure adsorption device can ensure that the material tail is always fixed with the rubber belt in the rolling process, and the material tail always has tension before being completely rolled onto the working roller, so that the generated deformation and the generated wrinkles are less.
Further, the cutting knife assembly further comprises a smoothing brush arranged on the knife rest, the right end of the smoothing brush is behind the cutting edge of the cutting knife in the left-right direction, and the smoothing brush is positioned at the lower side of the cutting knife; the tool rest is movably arranged on the frame in the left-right direction and the up-down direction, the smoothing brush moves downwards along with the tool rest before moving rightwards along with the tool rest so that the lower end of the smoothing brush is lower than the upper end of the peripheral surface of the standby roller, and the smoothing brush is used for pressing a stub bar falling on the standby roller when moving rightwards along with the tool rest.
By adopting the technical scheme, when the cutter assembly moves rightwards, the smoothing brush pushes the stub bar formed by cutting to generate friction with the stub bar, so that the stub bar is smoothed and flatly attached to the standby roller under the action of electrostatic adsorption, wrinkles generated by rebound deformation of the stub bar are avoided, and the film is wound more flatly. And the cutter assembly moves upwards in the resetting process, so that the bottom end of the smoothing brush is higher than the upper end of the peripheral surface of the standby roller, and then moves leftwards to back, so that the attached stub bar on the standby roller is prevented from being dragged down by the smoothing brush in the back process.
Further, the traction roller set further comprises two outer traction rollers which are arranged at intervals left and right, the interval size of the two outer traction rollers is smaller than that of the two inner traction rollers, the two outer traction rollers are located on one sides of the two inner traction rollers, which are opposite to the rollers, and are correspondingly arranged between the two inner traction rollers in the up-down direction, and the rubber belt is sleeved on the outer sides of the two outer traction rollers and the two inner traction rollers.
By adopting the technical scheme, the film is wound onto the working roller after passing through the inner traction roller and the outer traction roller by arranging the outer traction roller, and compared with the film which is only provided with the two inner traction rollers, the film has longer moving path, can be more fully contacted with the outside for heat dissipation, and is higher than the inner traction roller, thereby being more beneficial to tensioning the film for guiding and supporting, and reducing the probability of wrinkling of the film.
Further, a pushing roller with the same height as the standby roller is arranged below the cutting knife assembly, the pushing roller is movably mounted on the frame along the left-right direction, and the pushing roller is used for pressing a film to be cut on the standby roller when the pushing roller moves rightwards.
By adopting the technical scheme, the pushing roller is used for pressing the film on the working roller and then cutting the film, so that the stub bar can be fixed at the working roller for winding after the film is cut off, and the stub bar is prevented from slipping.
Further, two shaft sections which are arranged at intervals in the front-back direction are arranged on the tool rest, a connecting rod is sleeved on each of the two shaft sections in a rotating mode, and the compaction roller is connected between one ends of the back shaft ends of the two connecting rods in a rotating mode; and a torsion spring is connected between the connecting rod and the corresponding shaft section and is used for elastically pressing the pressing roller on the inner traction roller positioned on the left side in the working traction roller group.
By adopting the technical scheme, because the cutter needs to have higher cutting speed, the cutter frame is provided with the cutter, the smooth brush and the right moving speed of the pinch roller is higher, the pinch roller can rotate on the cutter frame and is connected with the torsion spring between the pinch roller and the cutter frame, and the mechanical damage caused by the direct hard impact of the pinch roller to the tail, the rubber belt and the standby roller can be avoided.
Further, a limiting pin parallel to the shaft section is arranged on the tool rest, one end of the connecting rod, which is used for being sleeved on the shaft section, is provided with an arc limiting groove coaxial with the shaft section, the arc limiting groove is positioned on the upper side of the shaft section, and the limiting pin rotates leftwards at the connecting rod to enable the torsion spring to be inserted into the left side of the arc limiting groove after the torsion spring generates a set torsion amount so as to pretighten the connecting rod and the pinch roller.
By adopting the technical scheme, the limit pin is arranged on the tool rest, the arc-shaped limit groove is arranged on the connecting rod, the position of the arc-shaped limit groove is set to be in a state that the limit pin is inserted after the torsion spring is twisted to a certain extent, so that the compaction roller has a certain pretightening force in an initial state, and when the compaction roller is pressed on the rubber belt, a larger compaction force can be generated on the rubber belt, and the rubber belt is deformed.
Further, the roll-over stand comprises a roll-over shaft extending back and forth, two transverse support plates, two first vertical support plates and two second vertical support plates; the two transverse supporting plates are connected to the turnover shaft and are arranged in a front-back interval manner, and the two rollers are arranged between the two transverse supporting plates and are respectively arranged at the left side and the right side of the turnover shaft; the two first vertical support plates are connected to the upper half side of the turnover shaft and are arranged at intervals front and back, and the two first vertical support plates are positioned between the two transverse support plates; the two second vertical support plates and the two first vertical support plates are vertically symmetrically connected to the lower half side of the turnover shaft, and a group of traction roller groups are respectively arranged between the two first vertical support plates and between the two second vertical support plates.
By adopting the technical scheme, the two rollers and the two groups of traction rollers are respectively arranged on different support plates, and the transverse support plates for arranging the rollers and the first vertical support plates and the second vertical support plates for arranging the traction rollers are positioned at different positions on the axial direction of the turnover shaft, so that the stress of the turnover shaft in the axial direction is balanced, the stress of the turnover shaft is prevented from being too concentrated, and the service life of the turnover shaft is prolonged.
Further, the left side of cutting knife assembly is equipped with power unit, and power unit includes lift driving piece, sideslip driving piece, and lift output of lift driving piece is connected with the support, and sideslip driving piece installs on the support, and sideslip driving piece has the drive output that can control reciprocating motion, and the drive output of sideslip driving piece is connected with the movable plate, installs the cutting driving piece on the movable plate, and the cutting driving piece has the drive output that can control reciprocating motion, the knife rest is connected on the drive output of cutting driving piece.
By adopting the technical scheme, the lifting driving piece and the transverse driving piece are used for greatly adjusting the position of the cutter frame, so that the cutter is moved to a proper cutting position, the cutting driving piece is used for driving the cutter to move left and right to cut the film, and the cutting efficiency is higher.
The winding device of the coating machine has the beneficial effects that: through set up the pinch roller respectively and smooth the brush from top to bottom both sides at the cutting knife, when the cutting, the pinch roller cooperatees with the interior traction roller that is arranged in left side among the work traction roller group, extrudes rubber belt, makes rubber belt produce the deformation, extrudes the air in the adsorption groove on the rubber belt, makes and adsorbs the inslot and forms negative pressure to make the tail that the cutting formed can be adsorbed on rubber belt, make tail department have tension, avoid the tail to warp the production fold at the in-process of continuing the rolling. Through the cooperation of the movement of smoothing brush and the rotation of the standby roller, the formed stub bar is flatly attached to the standby roller, wrinkles generated by deformation of the stub bar are avoided, the film winding is flatter, and the quality of the manufactured winding finished product is better.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear to those skilled in the art by reference to the figures of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following is an embodiment of a winding device of a coating machine provided by the invention:
As shown in fig. 1-10, a winding device of a coating machine comprises a frame 1, a winding assembly, a cutting knife assembly, a power mechanism, a pushing roller 10 and a pushing driving piece 24, wherein the winding device of the coating machine is used for changing rolls in the process of winding a film 25.
As shown in fig. 1, the frame 1 is disposed on a horizontal ground, and the frame 1 includes a first frame body 101 and a second frame body 102 disposed at intervals from left to right, the first frame body 101 and the second frame body 102 being integrally connected by a connecting body, which is not shown in the drawing.
As shown in fig. 1-5, the winding assembly includes a roll-over stand, a drum, and a set of pull rolls.
As shown in fig. 2 and 3, the roll-over stand is rotatably mounted on the second frame body 102, and the roll-over stand includes a roll-over shaft 4, a lateral support plate 5, a first vertical support plate 6, and a second vertical support plate 14.
The turnover shaft 4 extends in the front-rear direction, and the turnover shaft 4 is rotatably mounted on the second frame body 102.
The two transverse supporting plates 5 are arranged at intervals along the front-back direction, and the two transverse supporting plates 5 are perpendicular to the axis of the turning shaft 4 and fixedly connected to the turning shaft 4.
The two first vertical support plates 6 are arranged at intervals in the front-rear direction, the two first vertical support plates 6 are located between the two transverse support plates 5, and the two first vertical support plates 6 are perpendicular to the axis of the turnover shaft 4 and fixedly connected to the upper half side of the turnover shaft 4.
The two second vertical support plates 14 are arranged, and the two second vertical support plates 14 are respectively and vertically symmetrically connected with the two first vertical support plates 6 on the lower half side of the turnover shaft 4.
As shown in fig. 2, two rollers are provided, the two rollers extend along the front-rear direction and are installed between the two transverse supporting plates 5, the two rollers are respectively arranged on the left side and the right side of the turning shaft 4, the left-side roller is the standby roller 2 after being turned along with the turning frame, the right-side roller is the working roller 3 after being turned along with the turning frame, the transverse supporting plates 5 on the rear side are provided with a first driving piece 28 and a second driving piece 29 which are respectively used for driving the standby roller 2 and the working roller 3 to rotate, and the first driving piece 28 and the second driving piece 29 are specifically driving motors.
As shown in fig. 4, one first push rod 31 is rotatably installed at each of the left sides of the two lateral support plates 5, and one first push rod 31 can be moved in the front-rear direction, so that the standby drum 2 can be clamped between the two first push rods 31 or separated from between the two first push rods 31. The first driving member 28 is in driving connection with one of the first ejector rods 31 through a belt transmission structure, and drives the standby roller 2 to rotate by driving the first ejector rod 31 to rotate.
As shown in fig. 2, one second ejector rod 32 is rotatably installed on each right side of the two lateral support plates 5, and one second ejector rod 32 can move in the front-rear direction, so that the work drum 3 can be clamped between the two second ejector rods 32 or separated from between the two second ejector rods 32. The second driving member 29 is in transmission connection with one of the second ejector rods 32 through a belt transmission structure, and drives the working drum 3 to rotate by driving the second ejector rod 32 to rotate.
As shown in fig. 3, 4 and 5, the two sets of traction rollers are respectively installed between the two first vertical supporting plates 6 and between the two second vertical supporting plates 14, and the two sets of traction rollers are symmetrically arranged up and down, the traction roller set located on the upper side after being overturned along with the roll-over stand is a working traction roller set, and the traction roller set located on the lower side after being overturned along with the roll-over stand is a standby traction roller set.
The traction roller group comprises two inner traction rollers 8, two outer traction rollers 7, a rubber belt 9 and a belt driving mechanism.
The inner traction roller 8 and the outer traction roller 7 extend along the front-rear direction, the two inner traction rollers 8 are arranged at intervals in the left-right direction and can be rotatably arranged between the two first vertical support plates 6 or between the two second vertical support plates 14, and the two outer traction rollers 7 are arranged at intervals in the left-right direction and can be rotatably arranged between the two first vertical support plates 6 or between the two second vertical support plates 14. The space size between the two inner traction rollers 8 is larger than the space size between the two outer traction rollers 7, the inner traction rollers 8 are positioned on one side close to the turnover shaft 4, the outer traction rollers 7 are positioned on one side far away from the turnover shaft 4, and the two outer traction rollers 7 are correspondingly positioned between the two inner traction rollers 8 in the up-down direction.
As shown in fig. 2 and 4, the rubber belt 9 is fitted over the outer sides of the two inner traction rollers 8 and the two outer traction rollers 7. A plurality of adsorption grooves 901 are provided on the outer surface of the rubber belt 9, the adsorption grooves 901 being arranged in a plurality of rows arranged at equal intervals along the conveying direction of the conveying belt, each row including a plurality of adsorption grooves 901 arranged at equal intervals in the front-rear direction.
As shown in fig. 3, the belt driving mechanism is used to drive the rubber belt 9 to rotate. The belt driving mechanism comprises a driving motor and a synchronous belt transmission assembly 30, the driving motor is arranged on one of the first vertical supporting plates 6 or the second vertical supporting plates 14, and the driving motor drives the inner traction roller 8 positioned on the right side in the corresponding traction roller group to rotate through the synchronous belt transmission assembly 30, so that the rubber belt 9 is driven to rotate.
In the working state, the film 25 is guided to the side of the standby roller 2 by the guiding roller at the station of the previous working procedure and is wound on the working roller 3 by the traction of the working traction roller set.
As shown in fig. 6, the cutter assembly includes a blade carrier 15, a cutter 12, a smoothing brush 13, and a pinch roller 11.
As shown in fig. 6, the tool rest 15 is U-shaped, and the tool rest 15 includes a support 151 extending in a front-rear direction and two sliding plates 152 respectively connected to front and rear ends of the support 151 vertically, and two shaft sections 17 arranged at intervals in front-rear direction are provided on the support 151. As shown in fig. 4 and 5, two slide plates 152 are slidably mounted on the first frame 101 in a left-right direction.
The cutter 12 is connected to the bottom of the supporting frame 151, and the cutting edge of the cutter 12 is disposed towards the right and protrudes to the right from the supporting frame 151. The cutter 12 comprises a plurality of blades which are sequentially arranged side by side, and the blades are connected to the supporting frame 151 through bolts.
The smoothing brush 13 extends along the front-rear direction, the smoothing brush 13 is connected to the supporting frame 151 and located below the cutting knife 12, the smoothing brush 13 is located behind the edge portion of the cutting knife 12 from left to right, that is, the edge portion of the cutting knife 12 protrudes rightward from the smoothing brush 13, and the smoothing brush 13 is specifically a brush.
As shown in fig. 6 and 7, the pinch roller 11 extends along the front-rear direction, two front and rear ends of the pinch roller 11 are respectively hinged with a connecting rod 16, one ends of the two connecting rods 16, which are opposite to the pinch roller 11, are respectively sleeved on two shaft sections 17 in a rotating way, and torsion springs 18 are connected between the connecting rods 16 and the corresponding shaft sections 17. The part of the connecting rod 16, which is used for being sleeved on the outer side of the shaft section 17, is provided with an arc-shaped limiting groove 161, the arc-shaped limiting groove 161 is coaxial with the shaft section 17, the front end and the rear end of the supporting frame 151 are respectively provided with a limiting pin 19 in a penetrating manner along the front-rear direction, and the limiting pins 19 are inserted into the arc-shaped limiting grooves 161 on the connecting rod 16 on the corresponding side. The connecting rod 16 rotates relative to the shaft section 17, so that the limiting pin 19 can be inserted into the arc-shaped limiting groove 161 after the torsion spring 18 is twisted, the pressure of the torsion spring 18 is applied to the pinch roller 11 in an initial state, the pinch roller 11 is pre-tightened, and a larger pressing force can be generated when the pinch roller 11 is subsequently pressed on the rubber belt 9.
As shown in fig. 2 to 5, the power mechanisms are provided in two groups, and the two groups of power mechanisms are arranged on the first frame body 101 at intervals. The power mechanism includes a lift drive 20, a carriage 21, a traverse drive 26, a travel plate 27, and a cutting drive 22.
As shown in fig. 3, the lifting driving member 20 is mounted on the first frame portion 101, the lifting driving member 20 adopts a lifting cylinder, the bracket 21 is assembled on the first frame portion 101 in a sliding manner along the up-down direction, and the lifting output end of the lifting driving member 20 is connected with the bracket 21 to drive the bracket 21 to move up and down.
As shown in fig. 4, the traverse driving member 26 is mounted on the bracket 21, the traverse driving member 26 employs a linear cylinder which is retractable in the left-right direction, a moving plate 27 is slidably mounted on the bracket 21 in a guide in the left-right direction, and a driving output end of the traverse driving member 26 is connected to the moving plate 27 to drive the moving plate 27 to reciprocate in the left-right direction.
The cutting driving member 22 is mounted on the moving plate 27, the cutting driving member 22 is a high-speed linear cylinder which is telescopic in the left-right direction, the sliding plate 152 is slidably mounted on the moving plate 27 in a guiding manner in the left-right direction, and a driving output end of the cutting driving member 22 is connected with the knife rest 15, so that the cutting driving member 22 can drive the knife rest 15 to reciprocate in the left-right direction, thereby driving the cutting knife 12 to cut the film 25.
As shown in fig. 2, the pushing roller 10 is mounted on the first frame portion 101, and the pushing roller 10 extends in the front-rear direction and is equal in height to the standby drum 2.
The pushing driving parts 24 are provided with two groups, the two groups of pushing driving parts 24 are arranged on the first frame body 101 at intervals, and the pushing driving parts 24 are linear driving cylinders capable of stretching and moving along the left-right direction. As shown in fig. 5, the driving output ends of the two sets of pushing driving members 24 are connected with sliding blocks 23, the sliding blocks 23 are slidably assembled on the first frame 101 along the left-right direction, and the pushing roller 10 extends along the front-back direction and is rotatably connected between the two sliding blocks 23.
In the use process of the invention, the working roller 3 is in a rolling state at first, when the film 25 on the working roller 3 is rolled to a certain thickness, the roll change is needed, at the moment, the cutter assembly is driven to move to a position close to the film 25 by the lifting driving piece 20 and the transverse moving driving piece 26 in the power mechanism, and the state of the device is shown in figure 8. Then, the pushing driving piece 24 drives the pushing roller 10 to move rightwards, the pushing roller 10 compresses the film 25 on the standby roller 2, the cutting driving piece 22 drives the knife rest 15 to move rightwards, the cutting knife 12 is driven to move towards the film 25 between the standby roller 2 and the working traction roller set, and the film 25 is cut, and at the moment, the state of the device is shown in fig. 9. After the cutting is completed, a stub bar 251 and a stub bar 252 are formed at the cutting position of the film 25, and at this time, the state of the device is as shown in fig. 10, the smoothing brush 13 moves rightwards along with the knife rest 15 to smooth and paste the stub bar 251 formed by the cutting on the standby roller 2, the stub bar 251 is tightly attached to the standby roller 2 under the electrostatic adsorption effect, and is wound on the standby roller 2 along with the rotation of the standby roller 2, so that the reel change is realized.
The tail 252 is pressed on the rubber belt 9 on the inner traction roller 8 positioned at the left side in the working traction roller set by the pressing roller 11, the pressing roller 11 and the inner traction roller 8 squeeze the rubber belt 9 to deform the rubber belt 9, the air in the adsorption groove 901 on the rotating rubber belt 9 is extruded when passing through the pressing roller 11, so that the inner cavity of the adsorption groove 901 forms negative pressure, the tail 252 is adsorbed on the rubber belt 9, the working roller 3 continues to wind up, the tail 252 is adsorbed by the rubber belt 9 to move towards the working roller 3, and finally wind up on the working roller 3. Then the lifting driving part 20 drives the knife rest 15 to move upwards so as to lead the smoothing brush 13 to leave the standby roller 2, and the traversing driving part 26 and the cutting driving part 22 drive the knife rest 15 to move leftwards so as to lead the cutting knife 12, the smoothing brush 13 and the compacting roller 11 to retract and reset.
After the winding of the working roller 3 is completed, the working roller 3 is taken down together with the film 25 wound on the working roller 3 and is replaced by the working roller 3 with a new film 25 which is not wound on the working roller, then the turning shaft 4 rotates clockwise for 180 degrees, the standby roller 2 which is being wound is turned over from left to right to the original position of the working roller 3, the empty working roller 3 is turned over to the original position of the standby roller 2, meanwhile, the two traction roller sets are also turned up and down by turning over, the standby traction roller set which is originally positioned below is turned to the upper side to form the working traction roller set, the film 25 wound on the working roller 3 is continuously received and guided at the upstream position, and the winding of the next round is continued.
According to the invention, the smoothing brush 13, the pinch roller 11 and the rubber belt 9 with the adsorption grooves 901 are arranged, the smoothing brush 13 brushes the cut stub bars 251 flatly onto the standby roller 2, so that the stub bars 251 are prevented from wrinkling during winding, the pinch roller 11 extrudes the rubber belt 9 to enable the adsorption grooves 901 to generate negative pressure to adsorb the stub bars 252, the stub bars 252 are fixed on the rubber belt 9, a large number of wrinkles caused by rebound deformation of the stub bars 252 in the continuous winding process are prevented, and the quality of a winding finished product is effectively improved.
In this embodiment, the traction roller set includes two inner traction rollers 8 and two outer traction rollers 7, and the rubber belt 9 is sleeved on the outer sides of the two inner traction rollers 8 and the two outer traction rollers 7 to form a trapezoid structure, and in other embodiments, the traction roller set includes only two inner traction rollers 8, and at this time, the rubber belt 9 is sleeved on the outer sides of the two inner traction rollers 8.
In this embodiment, the pinch roller 11 is connected to the knife rest 15 through the connecting rod 16, and the connecting rod 16 is rotationally sleeved on the shaft section 17 on the knife rest 15, so that the connecting rod 16 can rotate, the pinch roller 11 can also rotate around the shaft section 17, in other embodiments, the connecting rod 16 is fixedly connected to the knife rest 15, at this time, the position of the pinch roller 11 on the knife rest 15 is fixed, and the pinch roller cannot rotate around the shaft section 17, at this time, when the film 25 is cut, the axial height of the pinch roller 11 needs to be not lower than the axial height of the standby roller 2, so that interference between the pinch roller 11 and the standby roller 2 in the process that the lifting driving piece 20 drives the knife rest 15 to move upwards for resetting is avoided.
In this embodiment, the connecting rod 16 is provided with an arc-shaped limit groove 161, the tool rest 15 is provided with a limit pin 19, in other embodiments, the connecting rod 16 is not provided with an arc-shaped limit groove 161, and the tool rest 15 is not provided with a limit pin 19, at this time, a torsion spring 18 with larger torsional rigidity can be used, so that a sufficient pressing force can be generated when the pressing roller 11 presses on the rubber belt 9.