CN110950137A - Bubble chamber film overspeed device tensioner - Google Patents
Bubble chamber film overspeed device tensioner Download PDFInfo
- Publication number
- CN110950137A CN110950137A CN201911375721.XA CN201911375721A CN110950137A CN 110950137 A CN110950137 A CN 110950137A CN 201911375721 A CN201911375721 A CN 201911375721A CN 110950137 A CN110950137 A CN 110950137A
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- Prior art keywords
- tensioning roller
- bubble film
- grooves
- tensioning
- groove
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
- B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
- B65H23/1888—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling web tension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0251—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a straight axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/11—Dimensional aspect of article or web
- B65H2701/113—Size
- B65H2701/1133—Size of webs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Abstract
The invention relates to a bubble film tensioning device which comprises two mounting plates and a plurality of first tensioning rollers, wherein first through grooves are vertically formed in the two mounting plates, sliding blocks slide in the first through grooves, and two ends of each first tensioning roller are respectively and rotatably connected to the sliding blocks on two opposite sides; the mounting plate is provided with a driving mechanism, the driving mechanism comprises a linkage rod which is rotatably connected to the mounting plate and is positioned between the two sliding blocks, second through grooves which are respectively formed in two ends of the linkage rod, connecting rods which are arranged on the sliding blocks and one ends of which are slidably embedded in the second through grooves, and a lifting assembly which is arranged on the mounting plate; all be equipped with the connecting plate on the relative slider in both sides, rotate between two connecting plates and be connected with the second tensioning roller, the cross section of second tensioning roller increases gradually from both sides to the centre along the axial of second tensioning roller. The scheme can stretch and tighten the air bubble film in the length direction and the width direction of the air bubble film at the same time, so that the air bubble film can be smoothly and compactly wound on the winding roller.
Description
Technical Field
The invention relates to the technical field of bubble film production, in particular to a bubble film tensioning device.
Background
The bubble film produced by the bubble film blowing machine is light in weight, good in flexibility and buffering performance, widely applied to the packaging and transportation industry, used for carrying out buffering protection on the outer layer of fragile, easily scratched and easily affected articles or used as box packaging filler, and capable of effectively guaranteeing the safety of the packaged articles.
In a bubble film production plant, a production process for winding a bubble film is generally performed by using a winding machine, and the bubble film is wound around a winding roller by conveying and guiding of a conveying roller on the winding machine so as to be used better in a next process. The bubble film is often stretched and tightened by a plurality of tensioning rollers before being wound, so that the probability of bending and wrinkling of the bubble film after being wound is reduced, the bubble film can be wound on the winding rollers in a flat and compact manner, and the process uses a bubble film tensioning device.
As shown in fig. 4, a bubble film tensioning device is shown, which comprises a mounting frame 1 and a tensioning roller 2 fixedly connected to the mounting frame, and the structure of the bubble film tensioning device is very simple, and is a simple combination of the mounting frame and a plurality of tensioning rollers, the bubble film tensioning device can only slightly stretch and tension the bubble film, and has no adjusting function, the bubble film can be bent and wrinkled very often after being wound, and the bubble film can not be wound on the winding roller smoothly and compactly.
Disclosure of Invention
The invention aims to provide a bubble film tensioning device which can stretch and tension a bubble film in the length direction and the width direction of the bubble film at the same time, effectively reduces the probability of bending and wrinkling of the bubble film and enables the bubble film to be wound on a subsequent winding roller in a flat and compact manner.
The above object of the present invention is achieved by the following technical solutions:
a bubble film tensioning device comprises two mounting plates and a plurality of first tensioning rollers arranged between the two mounting plates, wherein a bubble film sequentially bypasses the plurality of first tensioning rollers in an S shape, first through grooves are vertically formed in the positions, corresponding to each first tensioning roller, of the two mounting plates, sliding blocks are tightly attached to the first through grooves in a sliding mode in the vertical direction, and two ends of each first tensioning roller are respectively rotatably connected to the sliding blocks on the two opposite sides; the mounting plate is provided with a driving mechanism for driving two adjacent sliders at the same side to synchronously and reversely move, the driving mechanism comprises a linkage rod which is rotatably connected to the mounting plate and is positioned between the two sliders, second through grooves which are respectively formed in two ends of the linkage rod along the length direction of the linkage rod, a connecting rod which is arranged on the sliders and one end of which is slidably embedded in the second through groove, and a lifting assembly which is arranged on the mounting plate and is used for driving one slider to lift up and down; all be equipped with the connecting plate on the relative slider in both sides, rotate between two connecting plates and be connected with and be used for conflicting the bubble chamber membrane and with the parallel second tensioning roller of first tensioning roller, the cross section of second tensioning roller increases gradually from both sides toward the centre along the axial of second tensioning roller.
Through adopting above-mentioned technical scheme, the operator is snakelike to walk around many first tensioning rollers in proper order with the bubble membrane, and many first tensioning rollers alright make the bubble membrane obtain tensile before being rolled up, have reduced the bubble membrane and have taken place crooked and play the probability of fold after rolling up. When the plurality of first tensioning rollers cannot sufficiently stretch the bubble film, an operator drives one of the sliders to move upwards or downwards in the first through grooves through the lifting assembly, the connecting rods on the sliders move synchronously along with the sliders, and one ends of the connecting rods slide in the corresponding second through grooves of the linkage rods, so that the linkage rods rotate around the rotating axes of the linkage rods, the connecting rods on the adjacent sliders slide in the other second through grooves of the linkage rods, the two adjacent sliders move synchronously and reversely, the distance between the two adjacent first tensioning rollers is changed, the stretching degree of the bubble film passing through the two adjacent first tensioning rollers is adjusted, and the bubble film is stretched and tensioned in the length direction of the bubble film. In addition, when the distance between two adjacent first tensioning rollers becomes gradually larger, the inclination angle of the bubble film between the two adjacent first tensioning rollers becomes larger, the second tensioning roller abuts against the bubble film to tighten the bubble film, and the cross section of the second tensioning roller is gradually increased from two sides to the middle along the axial direction of the second tensioning roller, so that the second tensioning roller stretches and tightens the bubble film in the width direction of the bubble film. First tensioning roller and second tensioning roller in this scheme can stretch the bubble chamber film simultaneously and tighten on the length direction and the width direction of bubble chamber film, have not only effectively reduced the bubble chamber film and have taken place crooked and the probability of wrinkling, make the bubble chamber film can level and smooth compactly by the winding on subsequent wind-up roll, still effectively improved flexibility and the practicality that the device used simultaneously.
The invention is further configured to: the one end that the second tensioning roller was kept away from to the connecting plate is rotated through the pivot and is connected on the slider, be equipped with the locking mechanical system who carries out the joint location to the rotation angle of connecting plate on the slider.
Through adopting above-mentioned technical scheme, the operator can come the angle adjustment to the second tensioning roller according to the processing condition of reality for make the second tensioning roller can be more effectual stretch the bubble chamber film in the width direction of bubble chamber film and tighten, be favorable to improving flexibility and the practicality that the device used, let the bubble chamber film can be levelly and smoothly compactly rolled up on follow-up wind-up roll. After the second tensioning roller rotates to suitable position, the operator can carry out the joint location to the position of second tensioning roller through locking mechanical system, and is very convenient in the operation.
The invention is further configured to: the locking mechanism comprises a through hole formed in the connecting plate, a plurality of slots formed in the sliding block and sequentially aligned with the through hole in the rotating process of the connecting plate, an inserted rod connected in the through hole in a sliding mode, and a spring arranged between the connecting plate and the inserted rod and used for driving the inserted rod to be embedded into the slots.
Through adopting above-mentioned technical scheme, the operator rotates the in-process of second tensioning roller, through-hole on the connecting plate will aim at with the slot on the slider one by one, when second tensioning roller rotates to suitable position on, the operator can slide the connecting plate slightly again and make the through-hole aim at with nearest slot, when through-hole on the connecting plate is just right to the time with the slot, the inserted bar will get into the slot automatically under the resilience force of spring in, the position of the relative slider of connecting plate and second tensioning roller just can be locked, the structure principle is simple, and it is very convenient to operate. If the second tensioning roller needs to be rotated again, an operator pulls the inserting rod and enables one end of the inserting rod to be separated from the slot, and the operation is very convenient.
The invention is further configured to: and digital marks are arranged at the positions of the sliding blocks corresponding to the slots.
Through adopting above-mentioned technical scheme, the operator can adjust the position of second tensioning roller fast and accurately through the digital sign, is favorable to making the both ends of second tensioning roller keep the parallel and level, makes second tensioning roller can stretch the bubble chamber film better on the width direction at the bubble chamber film and tighten.
The invention is further configured to: and one end of the inserted bar, which is far away from the jack, is fixedly connected with a pull ring.
By adopting the technical scheme, the pull ring provides a good force application part for an operator to pull the inserted bar, and the operator can pull the inserted bar to separate the inserted bar from the slot conveniently.
The invention is further configured to: a plurality of circles of first annular traction grooves are formed in the side wall of one end of the second tensioning roller, and the first annular traction grooves are obliquely arranged towards one end of the second tensioning roller; and a plurality of circles of second annular traction grooves are formed in the side wall of the other end of the second tensioning roller, and the second annular traction grooves are obliquely arranged towards the other end of the second tensioning roller.
Through adopting above-mentioned technical scheme, the bubble chamber membrane is drawn when the surface of second tensioning roller is drawn, and the bubble on the bubble chamber membrane will be embedded into first annular traction groove and second annular traction groove, and first annular traction groove and second annular traction groove just can further stretch the bubble chamber membrane along the width direction of bubble chamber membrane and tighten, are favorable to improving the tensioning effect of bubble chamber membrane.
The invention is further configured to: the lifting assembly comprises a threaded rod which is rotatably connected in the first through groove, and the threaded rod vertically penetrates through the sliding block and is in threaded fit with the sliding block; the lifting assembly further comprises a worm wheel fixedly sleeved on one end of the threaded rod, a worm rotatably connected to the mounting plate and meshed with the worm wheel, and a motor arranged on the mounting plate and used for driving the worm to rotate.
Through adopting above-mentioned technical scheme, the operator drives the worm through the motor and takes place rotatoryly, and under the linkage effect of worm and worm wheel, the threaded rod just can take place rotatoryly round the axis of self, and under the screw thread effect of threaded rod again, alright realize the oscilaltion of slider in first logical inslot, and the structure principle is simple, and very convenient in the operation. In addition, because the worm gear structure has the function of amplifying the torque, the rotation of the threaded rod is smoother, the load on the motor is reduced, and the motor can be protected to a certain extent.
The invention is further configured to: and the mounting plate is provided with a dial gauge for displaying the height of the slide block.
Through adopting above-mentioned technical scheme, the scale meter can make the interval adjustment between two adjacent first tensioning rollers faster and accurate first, and second is favorable to making the both ends of first tensioning roller keep the parallel and level, has reduced the probability that first tensioning roller takes place to incline, and then lets first tensioning roller can be high-efficient and high quality stretch the air bubble membrane and tighten.
The invention is further configured to: the side wall of the connecting rod is rotatably sleeved with a rotary drum which is abutted to the inner wall of the second through groove.
Through adopting above-mentioned technical scheme, the rotary drum can become the running friction of rotary drum with the sliding friction that connecting rod and second lead to the groove contact production, has reduced the resistance that the connecting rod received to a certain extent, makes the connecting rod more smoothly soft in the logical inslot slip of second, and then lets the removal of slider and first tensioning roller more smooth.
The invention is further configured to: the sliding block is embedded with balls abutted to the inner wall of the first through groove in a rolling mode, the inner wall of the first through groove is provided with a groove corresponding to the balls, the length direction of the groove is consistent with that of the first through groove, the part, penetrating out of the sliding block, of the balls is abutted to the groove, and the radius of the groove is equal to that of the balls.
Through adopting above-mentioned technical scheme, the ball can become the rolling friction of ball with the sliding friction that produces when slider and the contact of first logical inslot wall, has reduced the resistance that the slider received when sliding, makes the upper and lower slip of slider more smooth. And the recess makes the point contact of ball and first logical inslot wall originally become present line contact, has increased the area of contact between ball and the first logical inslot wall, has increased the area of contact between slider and the mounting panel phase to phase change, and then makes the slip of slider more steady, and then makes the removal of first tensioning roller more smooth and easy and steady.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the arrangement of the first tensioning roller, the first through groove, the sliding block, the driving mechanism, the connecting plate and the second tensioning roller can simultaneously stretch and tighten the air bubble film in the length direction and the width direction, so that the probability of bending and wrinkling of the air bubble film is effectively reduced, and the air bubble film can be wound on a subsequent winding roller in a smooth and compact manner;
2. the arrangement of the rotating shaft and the locking mechanism enables an operator to adjust the angle of the second tensioning roller according to the actual processing condition, so that the second tensioning roller can more effectively stretch and tighten the bubble film in the width direction of the bubble film;
3. the arrangement of the digital mark not only enables an operator to adjust the position of the second tensioning roller more quickly and accurately, but also is beneficial to keeping two ends of the second tensioning roller parallel and level;
4. the arrangement of the first annular traction groove and the second annular traction groove can further stretch and tighten the bubble film, so that the tensioning effect of the bubble film is improved;
5. the arrangement of the dial gauge not only can enable the distance between two adjacent first tensioning rollers to be adjusted more quickly and accurately, but also is beneficial to keeping two ends of the first tensioning rollers parallel and level;
6. the arrangement of the rotary drum, the balls and the grooves can enable the sliding block and the first tensioning roller to move more smoothly and stably.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the overall structure at the mounting plate in the present invention;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 1;
fig. 4 is a schematic view of the overall structure of the prior art.
In the figure, 1, mounting plate; 2. a first tension roller; 3. a first through groove; 4. a slider; 5. a linkage rod; 6. a connecting rod; 7. a second through groove; 8. a rotating drum; 9. a threaded rod; 10. a worm gear; 11. a worm; 12. a motor; 13. a dial gauge; 14. a ball bearing; 15. a groove; 16. a rotating shaft; 17. a connecting plate; 18. a second tension roller; 19. a through hole; 20. a slot; 21. inserting a rod; 22. a spring; 23. a pull ring; 24. a digital identification; 25. a first annular traction groove; 26. a second annular traction groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the bubble film tensioning device comprises two parallel mounting plates 1 arranged at intervals, and three first tensioning rollers 2 arranged between the two mounting plates 1, wherein the three first tensioning rollers 2 are uniformly arranged along the length direction of the mounting plates 1. An operator winds the air bubble film in a snake shape sequentially around the three first tensioning rollers 2, and the three first tensioning rollers 2 stretch and tighten the air bubble film to a certain degree in the length direction of the air bubble film so as to reduce the probability that the air bubble film is bent and wrinkled and enable the air bubble film to be wound on a subsequent winding roller smoothly.
Three vertical first through grooves 3 are formed in the two mounting plates 1, the three first through grooves 3 are uniformly arranged along the length direction of the mounting plates 1, and the positions of the three first through grooves 3 correspond to the positions of the three first tensioning rollers 2 one by one. Every first logical inslot 3 all slides and pastes and has tightly had a slider 4, and slider 4 can follow the length direction that first logical groove 3 takes place to slide, and the both ends of first tensioning roller 2 rotate respectively to be connected on the relative slider 4 in both sides. An operator can change the distance between two adjacent first tensioning rollers 2 by sliding the sliding block 4 corresponding to the first through groove 3, so that the stretching degree of the bubble film passing through the two adjacent first tensioning rollers 2 is adjusted.
Referring to fig. 2, one side surface of the mounting plate 1 away from the first tensioning roller 2 is rotatably connected with two linkage rods 5, and the two linkage rods 5 are respectively located between two adjacent sliding blocks 4. A connecting rod 6 with a round cross section is fixedly connected on one surface of the sliding block 4 facing the linkage rod 5, and the axis of the connecting rod 6 is parallel to the rotation axis of the linkage rod 5. The two ends of the linkage rod 5 are respectively provided with a second through groove 7 for embedding one end of the connecting rod 6, the length direction of the second through groove 7 is consistent with that of the linkage rod 5, and one end of the connecting rod 6 embedded into the second through groove 7 can slide in the second through groove 7. The connecting rod 6 is embedded into the side wall of one end of the second through groove 7 and is rotatably sleeved with a rotary drum 8 which is abutted against the inner wall of the second through groove 7. Be located the first logical 3 internal rotations in the middle of the mounting panel 1 and be connected with a threaded rod 9, threaded rod 9 is vertical to be passed slider 4 and with 4 screw-thread fit of slider, the upper surface of mounting panel 1 is worn out and the fixed cover is equipped with worm wheel 10 in the upper end of threaded rod 9, rotate on the mounting panel 1 and be connected with the worm 11 with worm wheel 10 meshing and drive worm 11 and take place rotatory motor 12, motor 12 passes through the electric wire and is connected with the power. An operator drives the worm 11 to rotate through the motor 12, under the linkage action of the worm wheel 10 and the worm 11, the threaded rod 9 can rotate, under the thread action of the threaded rod 9, the sliding blocks 4 can move up and down in the corresponding first through grooves 3, in the moving process of the sliding blocks 4, the connecting rods 6 on the sliding blocks 4 can drive the linkage rods 5 to rotate, after the linkage rods 5 rotate, the adjacent sliding blocks 4 can slide in the corresponding first through grooves 3 in the synchronous direction, the distance between the two adjacent first tensioning rollers 2 can be increased, and further the stretching degree of the air bubble film when the air bubble film passes through the two adjacent first tensioning rollers 2 is better, namely the stretching and tightening degree of the air bubble film in the length direction of the air bubble film is better. The threaded rod 9, the worm wheel 10, the worm 11 and the motor 12 form a lifting assembly, and the linkage rod 5, the second through groove 7, the connecting rod 6 and the lifting assembly form a driving mechanism.
In order to facilitate the adjustment of the distance between two adjacent first tensioning rollers 2 by an operator and ensure the parallel and level of the two ends of the first tensioning rollers 2, graduations 13 for displaying the height of the sliding block 4 are arranged on the back surfaces of the two mounting plates 1.
The ball 14 that is equipped with the butt of first logical groove 3 lateral wall is inlayed in the roll on the slider 4, corresponds ball 14 on the lateral wall of first logical groove 3 and offers transversal curved recess 15 of personally submitting, and the length direction of recess 15 is unanimous with the length direction of first logical groove 3. The part of the ball 14 which penetrates out of the sliding block 4 is tightly attached in the groove 15 in a sliding mode, and the radius of the groove 15 is the same as that of the ball 14. The arrangement of the balls 14 and the grooves 15 makes the movement of the slider 4 and the first tension roller 2 smoother and smoother.
Referring to fig. 1 and 3, the sliders 4 opposite to each other on two sides are rotatably connected with connecting plates 17 through rotating shafts 16, a second tensioning roller 18 for stretching and tensioning the bubble films in the width direction of the bubble films is rotatably connected between the two connecting plates 17, the second tensioning roller 18 is parallel to the first tensioning roller 2 at intervals, and the cross section of the second tensioning roller 18 is gradually increased from two sides to the middle along the axial direction of the second tensioning roller 18. When the distance between two adjacent first tensioning rollers 2 is gradually increased, the inclination angle of the bubble film between two adjacent first tensioning rollers 2 is increased, and the stretching and tightening of the bubble film in the width direction of the bubble film by the second tensioning roller 18 becomes better. Finally, the first tensioning roller 2 and the second tensioning roller 18 stretch and tension the air bubble film in the length direction and the width direction of the air bubble film at the same time, so that the probability of bending and wrinkling of the air bubble film is effectively reduced, and the air bubble film can be wound on a subsequent winding roller in a smooth and compact manner.
Referring to fig. 1, a plurality of circles of first annular traction grooves 25 are formed in the side wall of one end of the second tensioning roller 18, and the first annular traction grooves 25 are obliquely arranged towards one end of the second tensioning roller 18; a plurality of circles of second annular traction grooves 26 are formed in the side wall of the other end of the second tensioning roller 18, and the second annular traction grooves 26 are obliquely arranged towards the other end of the second tensioning roller 18. When the bubble chamber membrane was drawn from the surface of second tensioning roller 18, the bubble on the bubble chamber membrane will imbed first annular pull groove 25 and second annular pull groove 26, and first annular pull groove 25 and second annular pull groove 26 just can further stretch the tight bubble chamber membrane along the width direction of bubble chamber membrane, are favorable to improving the tensioning effect of bubble chamber membrane.
Referring to fig. 1 and 3, a through hole 19 with a circular cross section is formed in the connecting plate 17, a plurality of slots 20 with a circular cross section are formed in the side wall, close to the through hole 19, of the slider 4, the through hole 19 and the slots 20 are opposite one by one in the rotating process of the connecting plate 17, and notches of the slots 20 are in flaring arrangement. An inserting rod 21 in clamping fit with the slot 20 is connected in the through hole 19 in a sliding mode, a spring 22 is fixedly connected between the inserting rod 21 and the connecting plate 17, when the spring 22 is in a natural state, the spring 22 pushes the inserting rod 21 into the slot 20, and when the spring 22 is in a contraction state, the inserting rod 21 is separated from the slot 20. The operator can adjust the angle of the second tension roller 18 according to the actual processing conditions, so that the second tension roller 18 can more effectively stretch and tighten the bubble film in the width direction of the bubble film. When the second tension roller 18 is rotated into position, the operator rotates the connecting plate 17 slightly to align the through hole 19 with the nearest slot 20, and when the slot 20 is aligned with the through hole 19, the spring 22 drives the insert rod 21 to insert into the slot 20, so that the position of the connecting plate 17 and the second tension roller 18 is locked. When the operator is ready to readjust the position of the second tension roller 18, the operator pulls the insertion rod 21 and disengages the insertion rod 21 from the corresponding slot 20. In order to facilitate the operator to pull the insertion rod 21, a pull ring 23 is fixedly connected to one end of the insertion rod 21 far away from the insertion hole. The through hole 19, the slot 20, the inserted rod 21 and the spring 22 form a locking mechanism.
In order to facilitate the adjustment of the rotation angle of the second tensioning roller 18 by an operator and ensure the parallel and level at the two ends of the second tensioning roller 18, a plurality of digital marks 24 are arranged on the opposite surfaces of the two sliding blocks 4, and the positions of the digital marks 24 correspond to the positions of the slots 20 one by one.
The implementation principle of the embodiment is as follows: an operator drives the worm 11 to rotate through the motor 12, under the linkage action of the worm wheel 10 and the worm 11, the threaded rod 9 can rotate, under the thread action of the threaded rod 9, the sliding blocks 4 can move up and down in the corresponding first through grooves 3, in the moving process of the sliding blocks 4, the connecting rods 6 on the sliding blocks 4 can drive the linkage rods 5 to rotate, after the linkage rods 5 rotate, the adjacent sliding blocks 4 can slide in the corresponding first through grooves 3 in the synchronous direction, the distance between the two adjacent first tensioning rollers 2 can be increased, and further the stretching degree of the air bubble film when the air bubble film passes through the two adjacent first tensioning rollers 2 is better, namely the stretching and tightening degree of the air bubble film in the length direction of the air bubble film is better. When the distance between two adjacent first tensioning rollers 2 is gradually increased, the inclination angle of the bubble film between two adjacent first tensioning rollers 2 is increased, and the stretching and tightening of the bubble film in the width direction of the bubble film by the second tensioning roller 18 becomes better. Finally, the first tensioning roller 2 and the second tensioning roller 18 stretch and tension the air bubble film in the length direction and the width direction of the air bubble film at the same time, so that the probability of bending and wrinkling of the air bubble film is effectively reduced, and the air bubble film can be wound on a subsequent winding roller in a smooth and compact manner.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides a bubble chamber film overspeed device tensioner, includes two mounting panels (1) and sets up many first stretch-draw rolls (2) between two mounting panels (1), the bubble chamber film is many first stretch-draw rolls (2), its characterized in that are walked around in proper order to S-shaped: the two mounting plates (1) are vertically provided with first through grooves (3) at positions corresponding to each first tensioning roller (2), sliding blocks (4) are tightly attached to the first through grooves (3) in a sliding mode in the vertical direction, and two ends of each first tensioning roller (2) are respectively connected to the sliding blocks (4) with two opposite sides in a rotating mode; the mounting plate (1) is provided with a driving mechanism for driving two adjacent sliders (4) at the same side to synchronously and reversely move, the driving mechanism comprises a linkage rod (5) which is rotatably connected to the mounting plate (1) and is positioned between the two sliders (4), second through grooves (7) which are respectively arranged at two ends of the linkage rod (5) along the length direction of the linkage rod (5), connecting rods (6) which are arranged on the sliders (4) and one end of each connecting rod is slidably embedded in the second through grooves (7), and a lifting assembly which is arranged on the mounting plate (1) and is used for driving one slider (4) to lift up and down; all be equipped with connecting plate (17) on the relative slider (4) of both sides, rotate between two connecting plates (17) and be connected with second tensioning roller (18) that are used for conflicting the bubble chamber membrane and are parallel with first tensioning roller (2), the cross section of second tensioning roller (18) increases gradually from both sides to the centre along the axial of second tensioning roller (18).
2. A bubble film tensioning device according to claim 1, characterized in that: one end, far away from the second tensioning roller (18), of the connecting plate (17) is rotatably connected to the sliding block (4) through a rotating shaft (16), and a locking mechanism for clamping and positioning the rotating angle of the connecting plate (17) is arranged on the sliding block (4).
3. A bubble film tensioning device according to claim 2, characterized in that: the locking mechanism comprises a through hole (19) formed in the connecting plate (17), a plurality of inserting grooves (20) formed in the sliding block (4) and sequentially aligned with the through hole (19) in the rotating process of the connecting plate (17), an inserting rod (21) connected into the through hole (19) in a sliding mode, and a spring (22) arranged between the connecting plate (17) and the inserting rod (21) and used for driving the inserting rod (21) to be embedded into the inserting grooves (20).
4. A bubble film tensioning device according to claim 3, characterized in that: and the position of the sliding block (4) corresponding to each slot (20) is provided with a digital mark (24).
5. A bubble film tensioning device according to claim 3, characterized in that: and one end of the inserted bar (21) far away from the jack is fixedly connected with a pull ring (23).
6. A bubble film tensioning device according to claim 1, characterized in that: a plurality of circles of first annular traction grooves (25) are formed in the side wall of one end of the second tensioning roller (18), and the first annular traction grooves (25) are obliquely arranged towards one end of the second tensioning roller (18); and a plurality of circles of second annular traction grooves (26) are formed in the side wall of the other end of the second tensioning roller (18), and the second annular traction grooves (26) are obliquely arranged towards the other end of the second tensioning roller (18).
7. A bubble film tensioning device according to claim 1, characterized in that: the lifting assembly comprises a threaded rod (9) which is rotatably connected in the first through groove (3), and the threaded rod (9) vertically penetrates through the sliding block (4) and is in threaded fit with the sliding block (4); the lifting assembly further comprises a worm wheel (10) fixedly sleeved on one end of the threaded rod (9), a worm (11) rotatably connected to the mounting plate (1) and meshed with the worm wheel (10), and a motor (12) arranged on the mounting plate (1) and used for driving the worm (11) to rotate.
8. A bubble film tensioning device according to claim 1, characterized in that: and a dial gauge (13) for displaying the height of the sliding block (4) is arranged on the mounting plate (1).
9. A bubble film tensioning device according to claim 1, characterized in that: the side wall of the connecting rod (6) is rotatably sleeved with a rotary drum (8) which is abutted against the inner wall of the second through groove (7).
10. A bubble film tensioning device according to claim 1, characterized in that: the ball (14) which is abutted to the inner wall of the first through groove (3) is embedded in the sliding block (4) in a rolling mode, a groove (15) is formed in the inner wall of the first through groove (3) corresponding to the ball (14), the length direction of the groove (15) is consistent with that of the first through groove (3), the part of the ball (14) penetrating out of the sliding block (4) is abutted to the groove (15), and the radius of the groove (15) is equal to that of the ball (14).
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| CN201911375721.XA CN110950137B (en) | 2019-12-27 | 2019-12-27 | Bubble chamber film overspeed device tensioner |
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| CN201911375721.XA CN110950137B (en) | 2019-12-27 | 2019-12-27 | Bubble chamber film overspeed device tensioner |
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| CN110950137B (en) | 2021-07-13 |
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