CN113878659A - Production line of polypropylene biaxially oriented film - Google Patents
Production line of polypropylene biaxially oriented film Download PDFInfo
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- CN113878659A CN113878659A CN202111141952.1A CN202111141952A CN113878659A CN 113878659 A CN113878659 A CN 113878659A CN 202111141952 A CN202111141952 A CN 202111141952A CN 113878659 A CN113878659 A CN 113878659A
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- Prior art keywords
- polypropylene film
- rotating rod
- moving belt
- cutting
- polypropylene
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- 239000004743 Polypropylene Substances 0.000 title claims abstract description 144
- -1 polypropylene Polymers 0.000 title claims abstract description 144
- 229920001155 polypropylene Polymers 0.000 title claims abstract description 144
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000005520 cutting process Methods 0.000 claims abstract description 78
- 238000005266 casting Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 11
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000003245 working effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920006379 extruded polypropylene Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
- B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0675—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for piles of sheets
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention relates to the technical field of polypropylene film production, in particular to a polypropylene biaxially oriented film production line, which comprises a double-flat main machine, a vacuum system, a die head casting system, a longitudinal stretching system, a transverse stretching system, a traction winding mechanism, an online cutting mechanism and a winding system, wherein the double-flat main machine is connected with the vacuum system through a pipeline; the online slitting mechanism comprises a support frame, a roller, a rotating rod, a moving belt, a sleeve, a fixed block, a slitting drum and a slitting unit; a pair of rollers is rotatably connected between the mutually close sides of the two support frames, and a slitting unit is arranged in front of one side of the inclined plane of the support frame; according to the on-line slitting mechanism, the rotating rod, the sleeve and the moving belt are matched with each other, so that the contact area between the moving belt and the polypropylene film is increased, the polypropylene film cannot shake in the cutting process, the stability and the edge flatness in the cutting process are kept, and the quality of the polypropylene film is improved.
Description
Technical Field
The invention relates to the technical field of polypropylene film production, in particular to a polypropylene biaxial stretching film production line.
Background
Biaxially oriented polypropylene film: the polypropylene film is generally a multilayer co-extruded polypropylene film, and is prepared by co-extruding polypropylene particles to form a sheet and then stretching the sheet in longitudinal and transverse directions; due to the stretching molecular orientation, the polypropylene film has good physical stability, mechanical strength and air tightness, high transparency and glossiness, toughness and wear resistance, is a widely-applied printing polypropylene film, and is generally 20-40 μm thick and most widely applied 20 μm; in the production process of the polypropylene film, the polypropylene film needs to be longitudinally stretched and transversely stretched, and the stretched polypropylene film needs to be cut and rolled; in the process of conveying and cutting the polypropylene film, the polypropylene film can shake in the conveying process, so that the stability of the cut polypropylene film and the flatness of the edge are influenced, and the quality of the polypropylene film is further influenced.
The TPU polypropylene film production line comprises a raw material box, a cold roller device, a winding device, a driving device and a top plate, wherein the bottom of the raw material box is fixedly provided with a heating device, one side of the top plate is fixedly provided with the winding device, four corners of the bottom of the top plate are fixedly provided with supporting legs, a mounting plate is fixedly arranged among the supporting legs, one side of the top of the mounting plate is fixedly provided with a storage battery, and a control plate is fixedly arranged at the central position of the front side surface of the storage battery; the technical scheme has good effects of heating and rolling the polypropylene film; however, the problem that the polypropylene film shakes during the transmission process, so that the stability of the cut polypropylene film is affected, the flatness of the edge of the cut polypropylene film is affected, and the quality of the polypropylene film is affected cannot be solved, and the limitation of the technical scheme is caused.
In view of the above, in order to overcome the above technical problems, the present invention provides a production line for biaxially oriented polypropylene films, which solves the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a polypropylene biaxial stretching film production line, an online slitting mechanism in the production line is matched with a sleeve through the movement of an external polypropylene film, so that a moving belt is driven on the sleeve along with the movement of the polypropylene film, the moving belt is attached to the surface of the polypropylene film in the driving process, the polypropylene film can be supported, the contact area between the polypropylene film and the moving belt is increased, the polypropylene film cannot shake in the slitting process, the stability in slitting is kept, and the quality of the polypropylene film is improved;
the technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a polypropylene biaxial stretching film production line which comprises a double-flat main machine, a vacuum system, a die head casting system, a longitudinal stretching system, a transverse stretching system, a traction winding mechanism, an online cutting mechanism and a winding system, wherein the double-flat main machine is connected with the vacuum system through a pipeline; the online slitting mechanism comprises a support frame, a roller, a rotating rod, a moving belt, a sleeve, a fixed block, a slitting drum and a slitting unit; a pair of rollers is rotatably connected between the mutually close sides of the two support frames, a slitting unit is arranged in front of one side of the inclined plane of the support frames, and fixing blocks which are distributed up and down are symmetrically arranged on one side of the outer inclined plane of each support frame; a rotating rod is rotatably connected between every two fixed blocks which are distributed up and down; sleeves are sleeved at two ends of the rotating rod; a moving belt is connected between the outer sides of two ends of each two vertically distributed sleeves in a transmission manner; the number of the moving belts is four, the cutting cylinder is rotatably sleeved on the outer side of the sleeve positioned above the moving belts and is positioned between the two moving belts;
when the machine works, due to the defects of the prior art, in the process of transmitting and cutting the external polypropylene film, the polypropylene film shakes in the process of transmitting, so that the stability of the cut polypropylene film and the flatness of the edge are influenced, and the quality of the polypropylene film is further influenced;
therefore, in the transmission process of the external polypropylene film, the online slitting mechanism firstly winds the film by the winding system to enable the film to move, and the rotating rod can freely rotate on the fixed block due to the rotary connection between the rotating rod and the fixed block; the sleeve is sleeved on the outer side of the rotating rod, so that the rotating rod can drive the sleeve to rotate in the rotating process, and the sleeve rotates to drive the moving belt to transmit on the sleeve, so that the cutting cylinder rotates along with the rotation of the sleeve; when an external polypropylene film contacts the moving belt, the polypropylene film drives the moving belt to move circumferentially on the sleeve due to friction between the polypropylene film and the moving belt, and meanwhile, the cutting unit cuts the polypropylene film; according to the invention, the contact area between the online slitting mechanism and the polypropylene film through the moving belt is increased, so that the stability and the edge flatness of the polypropylene film in the transmission and cutting processes are maintained, and the quality of the polypropylene film can be further improved;
according to the on-line slitting mechanism, the rotating rod, the sleeve and the moving belt are matched with each other, so that the contact area between the moving belt and the polypropylene film is increased, the polypropylene film cannot shake in the cutting process, the stability and the edge flatness in the cutting process are kept, and the quality of the polypropylene film is improved.
Preferably, the outer side of the rotating rod positioned below is provided with threads, the threads at the two ends of the rotating rod are arranged oppositely, push plates are arranged between the rotating rods and at the two ends of the rotating rod, one rotating rod is in threaded connection with the push plates, the other rotating rod is in sliding connection with the push plates, and one end of the rotating rod positioned below is provided with a motor; the motor is fixedly connected with the support frame through an L-shaped rod; when the cutting unit works, when polypropylene films with other sizes need to be cut, the rotating rod below the starting motor is driven to rotate by the starting motor, because the threads on the outer sides of the two ends of the rotating rod below are arranged oppositely, one end of the push plate is in threaded connection with the rotating rod below, the other end of the push plate is in sliding connection with the push plate above, the push plate can move relatively along with the rotation of the rotating rod, the sleeves at the two ends can be driven to move relatively by the movement of the push plate, meanwhile, the sleeves can be clamped by the push plate, so that the sleeves cannot deviate on the rotating rod in the rotating process, further, the moving belt is more stable, the distance between the cutting cylinders at the two ends is reduced along with the relative movement of the sleeves, then, the cutting unit is manually adjusted by workers, the cutting unit comprises a pair of support rods positioned in front of the support frame, and a slide rod is fixedly connected between the upper ends of the support rods, a pair of sliding blocks is sleeved on the outer side of the sliding rod in a sliding mode, fixed rods are arranged inside the sliding blocks in a sliding mode, and a blade is arranged at one end of each fixed rod in a rotating mode; the cutting unit cuts the polypropylene film by the movement of the external polypropylene film; the interval between the cutting section of thick bamboo is adjusted, can cut not unidimensional polypropylene film, and then has improved the efficiency of cutting not unidimensional polypropylene film, has reached the effect that does not need the renewal part when cutting not unidimensional polypropylene film, has improved polypropylene film accommodation.
Preferably, the opposite sides of the push plates are rotatably connected with connecting rods; the outer sides of the connecting rods are sleeved with cylinders; the length of the cylinder is smaller than the width of the moving belt, and the outer wall of the cylinder is attached to the inner wall of the moving belt; when the device works, the moving belt drives the sleeve to rotate, the cylinder is in contact with the inner side of the moving belt, and the moving belt drives the cylinder to rotate, so that the cylinder supports the moving belt; the outer wall of the cylinder is attached to the inner wall of the moving belt, so that the cylinder can be located between the moving belts, and when the push plate pushes the sleeve to move, the distance of the cylinder does not exceed the width between the moving belts, and the cylinder on the other side cannot be impacted in the moving process, so that a part is protected; the diameter of the cylinder is equal to the thickness between the moving belts, so that the moving belts are always kept in a flat state, the surfaces of the moving belts are always on the same vertical line, the surfaces of the moving belts are always in contact with the polypropylene film, and the stability of the polypropylene film on the moving belts is kept.
Preferably, the width of the push plate is smaller than the thickness between the moving belts; during operation, the width of the push plate is smaller than the thickness between the moving belts, so that when the polypropylene film is driven on the moving belts, the edge of the polypropylene film cannot contact with the push plate, the transmission effect of the polypropylene film is influenced, and the stability of the polypropylene film in the transmission process is further kept.
Preferably, the thickness between the moving belts is equal to the diameter of the cutting drum and is on the same horizontal line; when the machine works, when the polypropylene film is always attached to the moving belt and the cutting cylinder for transmission, the moving belt and the cutting cylinder are on the same horizontal line; make the polypropylene film not have the arch between removing the area and cutting a section of thick bamboo to contact with the outer wall that removes the area and cut a section of thick bamboo always, and then the polypropylene film is more steady at the removal in-process that removes on the area, makes the working effect of cutting polypropylene film better.
The invention has the following beneficial effects:
1. according to the on-line slitting mechanism, the rotating rod, the sleeve and the moving belt are matched with each other, so that the contact area between the moving belt and the polypropylene film is increased, the polypropylene film cannot shake in the cutting process, the stability in cutting is kept, and the quality of the polypropylene film is improved;
2. according to the online slitting mechanism, the distance between the cutting cylinders is reduced due to the relative movement of the sleeves in the slitting mechanism, the cuts are positioned at the centers of the cutting cylinders through the adjustment of workers, and the polypropylene films are slit by the slitting units through the movement of the external polypropylene films; the interval between the cutting cylinders is adjusted, so that the polypropylene films with different sizes can be cut, the efficiency of cutting the polypropylene films with different sizes is improved, the effect that parts do not need to be replaced when the polypropylene films with different sizes are cut is achieved, and the application range of the polypropylene films is improved;
3. according to the on-line slitting mechanism, when the polypropylene film is always attached to the moving belt and the cutting drum for transmission, the moving belt and the cutting drum are on the same horizontal line; make the polypropylene film not have the arch between removing the area and cutting a section of thick bamboo to contact with the outer wall that removes the area and cut a section of thick bamboo always, and then the polypropylene film is more steady at the removal in-process that removes on the area, makes the working effect of cutting polypropylene film better.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of an on-line slitting mechanism of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a cross-sectional perspective view of the moving belt of the on-line slitting mechanism of the present invention;
in the figure: 1. a support frame; 2. a drum; 3. rotating the rod; 4. a moving belt; 5. a sleeve; 6. a fixed block; 7. cutting the cylinder; 8. a slitting unit; 9. pushing the plate; 10. a connecting rod; 11. a cylinder; 12. a motor; 13. an L-shaped rod.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to fig. 3, the polypropylene biaxially oriented film production line of the present invention comprises a double flat main machine, a vacuum system, a die head casting system, a longitudinal stretching system, a transverse stretching system, a traction winding mechanism, an online slitting mechanism and a winding system; the online slitting mechanism comprises a support frame 1, a roller 2, a rotating rod 3, a moving belt 4, a sleeve 5, a fixed block 6, a cutting drum 7 and a slitting unit 8; a pair of rollers 2 is rotatably connected between the mutually close sides of the two support frames 1, a slitting unit 8 is arranged in front of one side of each support frame 1 on the inclined plane, and fixing blocks 6 which are distributed up and down are symmetrically arranged on one side of the outer inclined plane of each support frame 1; a rotating rod 3 is rotatably connected between every two fixed blocks 6 which are distributed up and down; the two ends of the rotating rod 3 are sleeved with sleeves 5; a moving belt 4 is connected between the outer sides of two ends of each two of the sleeves 5 which are distributed up and down in a transmission way; the number of the moving belts 4 is four, the cutting cylinder 7 is rotatably sleeved on the outer side of the sleeve 5 positioned above the moving belts, and the cutting cylinder 7 is positioned between the two moving belts 4;
when the machine works, due to the defects of the prior art, in the process of transmitting and cutting the external polypropylene film, the polypropylene film shakes in the process of transmitting, so that the stability of the cut polypropylene film and the flatness of the edge are influenced, and the quality of the polypropylene film is further influenced;
therefore, in the transmission process of the external polypropylene film, the online slitting mechanism firstly winds the film by the winding system to enable the film to move, and the rotating rod 3 can freely rotate on the fixed block 6 due to the rotating connection between the rotating rod 3 and the fixed block 6; the sleeve 5 is sleeved on the outer side of the rotating rod 3, so that the rotating rod 3 can drive the sleeve 5 to rotate in the rotating process, the sleeve 5 rotates to drive the movable belt 4 to transmit on the sleeve 5, and the cutting cylinder 7 rotates along with the rotation of the sleeve 5; when an external polypropylene film contacts the moving belt 4, the polypropylene film drives the moving belt 4 to move circumferentially on the sleeve 5 due to friction between the polypropylene film and the moving belt 4, and meanwhile, the cutting unit 8 cuts the polypropylene film; according to the invention, the contact area between the online slitting mechanism and the polypropylene film through the moving belt 4 is increased, so that the stability and the edge flatness of the polypropylene film in the transmission and cutting processes are maintained, and the quality of the polypropylene film can be improved;
according to the on-line slitting mechanism, the rotating rod 3, the sleeve 5 and the moving belt 4 are matched with each other, so that the contact area between the moving belt 4 and the polypropylene film is increased, the polypropylene film cannot shake in the cutting process, the stability and the edge flatness in the cutting process are kept, and the quality of the polypropylene film is improved.
As an embodiment of the present invention, the outer side of the lower rotating rod 3 is provided with a thread, the threads at both ends of the rotating rod 3 are oppositely arranged, push plates 9 are arranged between the rotating rods 3 and at both ends of the rotating rod 3, one of the rotating rods 3 is in threaded connection with the push plate 9, the other rotating rod 3 is in sliding connection with the push plate 9, and one end of the lower rotating rod 3 is provided with a motor 12; the motor 12 is fixedly connected with the support frame 1 through an L-shaped rod 13;
when the cutting machine works, when polypropylene films of other sizes need to be cut, the starting motor 12 drives the lower rotating rod 3 to rotate, because the threads on the outer sides of the two ends of the lower rotating rod 3 are oppositely arranged, one end of the push plate 9 is in threaded connection with the lower rotating rod 3, the other end of the push plate is in sliding connection with the upper push plate 9, the push plate 9 can move relatively along with the rotation of the rotating rod 3, the sleeve 5 at the two ends can be driven to move relatively by the movement of the push plate 9, meanwhile, the sleeve 5 can be clamped by the push plate 9, so that the sleeve 5 cannot deviate on the rotating rod 3 in the rotating process, further, the moving belt 4 is more stable, along with the relative movement of the sleeve 5, the distance between the cutting cylinders 7 at the two ends is reduced, the cutting unit 8 is manually adjusted by a worker, and comprises a pair of supporting rods positioned in front of the supporting frame 1, a slide bar is fixedly connected between the upper ends of the support bars, a pair of slide blocks is sleeved on the outer sides of the slide bars in a sliding manner, fixed rods are arranged inside the slide blocks in a sliding manner, and a blade is rotatably arranged at one end of each fixed rod; the incision is positioned at the center of the cutting cylinder 7 through the adjustment of workers, and the polypropylene film is cut by the cutting unit 8 through the movement of the external polypropylene film; the interval between the cutting section of thick bamboo 7 is adjusted, can cut not unidimensional polypropylene film, and then has improved the efficiency of cutting not unidimensional polypropylene film, has reached the effect that does not need the renewal part when cutting not unidimensional polypropylene film, has improved polypropylene film accommodation.
As an embodiment of the present invention, the opposite sides of the push plate 9 are rotatably connected with a connecting rod 10; the outer sides of the connecting rods 10 are sleeved with cylinders 11; the length of the cylinder 11 is smaller than the width of the moving belt 4, and the outer wall of the cylinder 11 is attached to the inner wall of the moving belt 4; when the device works, the moving belt 4 drives the sleeve 5, the cylinder 11 is in contact with the inner side of the moving belt 4, and the cylinder 11 is driven by the moving belt 4 to rotate, so that the cylinder 11 supports the moving belt 4; the outer wall of the cylinder 11 is attached to the inner wall of the moving belt 4, so that the cylinder 11 is positioned between the moving belts 4, when the push plate 9 pushes the sleeve 5 to move, the distance of the cylinder 11 does not exceed the width between the moving belts 4, and the cylinder 11 on the other side cannot be impacted in the moving process, so that the parts are protected; the diameter of the cylinder 11 is equal to the thickness between the moving belts 4, so that the moving belts 4 are always kept in a flat state, and the surfaces of the moving belts 4 are always on the same vertical line, so that the surfaces of the moving belts 4 are always in contact with the polypropylene film, and the stability of the polypropylene film on the moving belts 4 is kept.
As an embodiment of the invention, the width of the push plate 9 is smaller than the thickness between the moving belts 4; during operation, because of the width of push pedal 9 is less than the thickness between the removal area 4 for the polypropylene film is when removing the transmission on taking 4, the edge of polypropylene film can not contact push pedal 9, thereby influences the transmission effect of polypropylene film, and then keeps the stationarity of polypropylene film in the transmission course.
As an embodiment of the invention, the thickness between the moving belts 4 is equal to the diameter of the cutting cylinder 7 and on the same horizontal line; when the machine works, when the polypropylene film is always attached to the moving belt 4 and the cutting cylinder 7 for transmission, the moving belt 4 and the cutting cylinder 7 are on the same horizontal line; make the polypropylene film not have the arch between removing area 4 and a cutting section of thick bamboo 7 to contact with the outer wall that removes area 4 and a cutting section of thick bamboo 7 always, and then the polypropylene film is more steady at the removal in-process that removes on taking 4, makes the working effect of cutting polypropylene film better.
The specific working process is as follows:
in the transmission process of the external polypropylene film, the film is firstly wound by the winding system to move, and the rotating rod 3 can freely rotate on the fixed block 6 due to the rotary connection between the rotating rod 3 and the fixed block 6; the sleeve 5 is sleeved on the outer side of the rotating rod 3, so that the rotating rod 3 can drive the sleeve 5 to rotate in the rotating process, the sleeve 5 rotates to drive the movable belt 4 to transmit on the sleeve 5, and the cutting cylinder 7 rotates along with the rotation of the sleeve 5; when an external polypropylene film contacts the moving belt 4, the polypropylene film drives the moving belt 4 to move circumferentially on the sleeve 5 due to friction between the polypropylene film and the moving belt 4, and meanwhile, the cutting unit 8 cuts the polypropylene film; according to the invention, the contact area between the online slitting mechanism and the polypropylene film through the moving belt 4 is increased, so that the stability and the edge flatness of the polypropylene film in the transmission and cutting processes are maintained, and the quality of the polypropylene film can be improved; when polypropylene films with other sizes need to be cut, the starting motor 12 drives the lower rotating rod 3 to rotate, the outer threads of the two ends of the lower rotating rod 3 are oppositely arranged, one end of the push plate 9 is in threaded connection with the lower rotating rod 3, the other end of the push plate is in sliding connection with the upper push plate 9, the push plate 9 can move relatively along with the rotation of the rotating rod 3, the sleeve 5 at the two ends can be driven to move relatively by the movement of the push plate 9, meanwhile, the sleeve 5 can be clamped by the push plate 9, so that the sleeve 5 cannot deviate on the rotating rod 3 in the rotating process, further, the moving belt 4 is more stable, the distance between the cutting cylinders 7 at the two ends is reduced along with the relative movement of the sleeve 5, and then the cutting unit 8 is manually adjusted by workers and comprises a pair of supporting rods positioned in front of the supporting frame 1, a slide bar is fixedly connected between the upper ends of the support bars, a pair of slide blocks is sleeved on the outer sides of the slide bars in a sliding manner, fixed rods are arranged inside the slide blocks in a sliding manner, and a blade is rotatably arranged at one end of each fixed rod; the incision is positioned at the center of the cutting cylinder 7 through the adjustment of workers, and the polypropylene film is cut by the cutting unit 8 through the movement of the external polypropylene film; the interval between the cutting cylinders 7 is adjusted, so that the polypropylene films with different sizes can be cut, the efficiency of cutting the polypropylene films with different sizes is improved, the effect that parts do not need to be replaced when the polypropylene films with different sizes are cut is achieved, and the application range of the polypropylene films is improved; the movable belt 4 is driven on the sleeve 5, the cylinder 11 is contacted with the inner side of the movable belt 4, and the cylinder 11 is driven to rotate by the driving of the movable belt 4, so that the cylinder 11 supports the movable belt 4; the length of the cylinder 11 is smaller than the width of the moving belts 4, so that the cylinder 11 is positioned between the moving belts 4, when the push plate 9 pushes the sleeve 5 to move, the distance of the cylinder 11 does not exceed the width between the moving belts 4, and the cylinder 11 on the other side is not impacted in the moving process, so that the parts are protected; the diameter of the cylinder 11 is equal to the thickness of the moving belt 4, so that the moving belt 4 is always kept in a flat state, and the surface of the moving belt 4 is always on the same vertical line, so that the surface of the moving belt 4 is always contacted with a polypropylene film, and the stability of the polypropylene film on the moving belt 4 is kept; because the width of the push plate 9 is smaller than the thickness between the moving belts 4, when the polypropylene film is driven on the moving belts 4, the edge of the polypropylene film can not contact with the push plate 9, so that the driving effect of the polypropylene film is influenced, and the stability of the polypropylene film in the driving process is further kept; when the polypropylene film is always attached to the moving belt 4 and the cutting cylinder 7 for transmission, the moving belt 4 and the cutting cylinder 7 are on the same horizontal line; make the polypropylene film not have the arch between removing area 4 and a cutting section of thick bamboo 7 to contact with the outer wall that removes area 4 and a cutting section of thick bamboo 7 always, and then the polypropylene film is more steady at the removal in-process that removes on taking 4, makes the working effect of cutting polypropylene film better.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A polypropylene biaxial stretching film production line comprises a double-flat main machine, a vacuum system, a die head casting system, a longitudinal stretching system, a transverse stretching system, a traction rolling mechanism, an online cutting mechanism and a rolling system; the method is characterized in that: the online slitting mechanism comprises a support frame (1), a roller (2), a rotating rod (3), a moving belt (4), a sleeve (5), a fixed block (6), a cutting cylinder (7) and a slitting unit (8); a pair of rollers (2) is rotatably connected between the mutually close sides of the two support frames (1), a slitting unit (8) is arranged in front of one side of the inclined plane of the support frames (1), and fixing blocks (6) which are distributed up and down are symmetrically arranged on one side of the outer inclined plane of each support frame (1); a rotating rod (3) is rotatably connected between every two fixed blocks (6) which are vertically distributed; sleeves (5) are sleeved at two ends of the rotating rod (3); a moving belt (4) is in transmission connection between the outer sides of two ends of each two vertically distributed sleeves (5); the number of the moving belts (4) is four, the outer side of the sleeve (5) positioned above is rotatably sleeved with a cutting cylinder (7), and the cutting cylinder (7) is positioned between the two moving belts (4).
2. The polypropylene biaxially oriented film production line according to claim 1, wherein: threads are formed in the outer side of the lower rotating rod (3), threads at two ends of the rotating rod (3) are arranged oppositely, push plates (9) are arranged between the rotating rods (3) and at two ends of the rotating rod (3), one rotating rod (3) is in threaded connection with the push plates (9), the other rotating rod (3) is in sliding connection with the push plates (9), and a motor (12) is installed at one end of the lower rotating rod (3); the motor (12) is fixedly connected with the support frame (1) through an L-shaped rod (13).
3. The polypropylene biaxially oriented film production line according to claim 2, wherein: the opposite sides of the push plates (9) are rotatably connected with connecting rods (10); the outer sides of the connecting rods (10) are sleeved with cylinders (11).
4. The production line of polypropylene biaxially oriented film according to claim 3, wherein: the length of the cylinder (11) is smaller than the width of the moving belt (4), and the outer wall of the cylinder (11) is attached to the inner wall of the moving belt (4).
5. The production line of polypropylene biaxially oriented film according to claim 4, wherein: the width of the push plate (9) is smaller than the thickness between the moving belts (4).
6. The production line of polypropylene biaxially oriented film according to claim 5, wherein: the thickness between the moving belts (4) is equal to the diameter of the cutting cylinder (7) and is on the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111141952.1A CN113878659A (en) | 2021-09-28 | 2021-09-28 | Production line of polypropylene biaxially oriented film |
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| CN1270565A (en) * | 1997-09-23 | 2000-10-18 | 穆尔美国公司 | Dual web singulating cutter |
| WO2018050376A1 (en) * | 2016-09-19 | 2018-03-22 | Krones Aktiengesellschaft | Device and method for producing multipacks having carrying handles |
| CN108082994A (en) * | 2017-12-15 | 2018-05-29 | 郑州泰济电子科技有限公司 | A kind of safety-type film cutter |
| CN109551536A (en) * | 2018-05-30 | 2019-04-02 | 台州洪挺食品有限公司 | A kind of trimming device of sunshading cover for car production process |
| CN211711749U (en) * | 2019-11-27 | 2020-10-20 | 青岛利康食品包装科技有限公司 | Anti-deviation conveying device for packaging boxes |
| CN212044919U (en) * | 2020-04-02 | 2020-12-01 | 上海金桢纸业有限公司 | A side cut device for corrugated paper production |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1270565A (en) * | 1997-09-23 | 2000-10-18 | 穆尔美国公司 | Dual web singulating cutter |
| WO2018050376A1 (en) * | 2016-09-19 | 2018-03-22 | Krones Aktiengesellschaft | Device and method for producing multipacks having carrying handles |
| CN108082994A (en) * | 2017-12-15 | 2018-05-29 | 郑州泰济电子科技有限公司 | A kind of safety-type film cutter |
| CN109551536A (en) * | 2018-05-30 | 2019-04-02 | 台州洪挺食品有限公司 | A kind of trimming device of sunshading cover for car production process |
| CN211711749U (en) * | 2019-11-27 | 2020-10-20 | 青岛利康食品包装科技有限公司 | Anti-deviation conveying device for packaging boxes |
| CN212044919U (en) * | 2020-04-02 | 2020-12-01 | 上海金桢纸业有限公司 | A side cut device for corrugated paper production |
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