CN211998077U - Plastic film tension adjusting device - Google Patents
Plastic film tension adjusting device Download PDFInfo
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- CN211998077U CN211998077U CN202020098548.5U CN202020098548U CN211998077U CN 211998077 U CN211998077 U CN 211998077U CN 202020098548 U CN202020098548 U CN 202020098548U CN 211998077 U CN211998077 U CN 211998077U
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- rotating shaft
- plastic film
- tensioning roller
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- plate
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Abstract
The utility model relates to a plastic film tension adjusting device, which relates to the technical field of tensioning devices and comprises a frame, two side plates symmetrically fixed on the frame and a tensioning roller arranged between the two side plates, wherein a first rotating shaft and a second rotating shaft are arranged between the two side plates; two ends of the second rotating shaft are rotatably connected to the side plates, the first rotating shaft and the second rotating shaft are arranged in parallel, the first rotating shaft and the second rotating shaft are connected through a connecting plate, and the connecting plate is arranged at two ends of the first rotating shaft and the second rotating shaft; two ends of the first rotating shaft extend out of the rack; the tensioning roller comprises a first tensioning roller and a second tensioning roller, the first tensioning roller and the second tensioning roller are respectively connected to the first rotating shaft and the second rotating shaft in a rotating mode, the outer side of the side plate is connected with an air cylinder in a rotating mode, and a piston rod of the air cylinder is connected with one end, extending out of the rack, of the first rotating shaft in a rotating mode. The tension of the plastic film can be automatically adjusted, and the situation that the plastic film is damaged due to improper tension force is reduced.
Description
Technical Field
The utility model belongs to the technical field of overspeed device tensioner's technique and specifically relates to a plastic film tension adjusting device is related to.
Background
In the production process, before rolling, the plastic film needs to be tensioned and stretched, and is generally compacted by a roller system. According to the characteristics of materials, when the film is stretched, the film can be smoothly stretched only by keeping the film at a relatively high temperature, but in the process of moving the plastic film, the tension of the plastic film cannot be automatically adjusted by a common roller system tensioning device, so that the stability of the plastic film is easily influenced, and the plastic film is easily abraded or damaged.
The prior art refers to the chinese utility model patent of grant publication No. CN202935999U, this utility model relates to a plastic film calendering batches the tension device of section, including the dabber of curling roller and the rolling core section of thick bamboo of wearing, the winding of curling roller drive is at the epaxial plastic film of spindle, and the curling roller upper reaches still is equipped with the transition roller, and the transition roller upper reaches still is equipped with tension device, and tension device is including installing the tension roller on the bearing frame. The system enables the curling roller to automatically adjust the rotating speed, keeps the tension constant, ensures the end surface of the film of the scroll to be tidy, reduces the retraction of products and the like. The utility model has the advantages of simple and reasonable structure, it is more smooth and easy to guarantee the calendering production line.
The above prior art solutions have the following drawbacks: when the plastic film is tensioned, the tension is constant, the tension of the film cannot be automatically adjusted, and the film is easily damaged.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims at providing a plastic film tension adjusting device, its tensioning dynamics that can automatically regulated plastic film has reduced the possibility that the plastic film damaged because of the tensioning dynamics is improper.
The above object of the present invention can be achieved by the following technical solutions:
a plastic film tension adjusting device comprises a rack, two side plates symmetrically fixed on the rack and a tension roller arranged between the two side plates, wherein a first rotating shaft and a second rotating shaft are arranged between the two side plates; the two ends of the second rotating shaft are rotatably connected to the side plates, the first rotating shaft and the second rotating shaft are arranged in parallel, the first rotating shaft and the second rotating shaft are connected through a connecting plate, and the connecting plate is arranged at the two ends of the first rotating shaft and the second rotating shaft; two ends of the first rotating shaft extend out of the rack; the tensioning roller comprises a first tensioning roller and a second tensioning roller, the first tensioning roller and the second tensioning roller are respectively connected to the first rotating shaft and the second rotating shaft in a rotating mode, the outer side of the side plate is connected with an air cylinder in a rotating mode, and a piston rod of the air cylinder is connected with one end, extending out of the rack, of the first rotating shaft in a rotating mode.
By adopting the technical scheme, the plastic film is sequentially wound on the surfaces of the first tensioning roller and the second tensioning roller, the plastic film moves to drive the first tensioning roller and the second tensioning roller to rotate, when a piston rod of the air cylinder extends, the piston rod drives the first rotating shaft to move downwards, the first rotating shaft drives one end, close to the first rotating shaft, of the connecting plate to move downwards, the other end of the connecting plate rotates upwards around a connecting point on the side plate, so that the plastic film is pressed by the first tensioning roller more tightly, and the tensioning force of the first tensioning roller on the plastic film is increased; when a piston rod of the air cylinder is retracted, the piston rod drives the first rotating shaft to move upwards, the first rotating shaft drives one end, close to the first rotating shaft, of the connecting plate to move upwards, the other end of the connecting plate rotates downwards around a connecting point on the side plate, and the first rotating shaft drives the first tensioning roller to move upwards, so that the first tensioning roller and the plastic film are loosened, and the tensioning force of the first tensioning roller on the plastic film is reduced; therefore, the tensioning force of the plastic film is adjusted, and the possibility that the plastic film is damaged due to improper tensioning force is reduced.
The present invention may be further configured in a preferred embodiment as: the outside of curb plate is provided with the mounting panel, the mounting panel is fixed with the centre gripping of second pivot, the outside of frame is fixed with the mount pad, be provided with the extension spring between mount pad and the mounting panel.
By adopting the technical scheme, when the piston rod of the air cylinder extends, the first rotating shaft drives the mounting plate to move, the mounting plate drives one end of the tension spring, which is close to the mounting plate, to move upwards, the tension spring extends, and the tension spring can generate a tension force for restoring the original length; when the piston rod of cylinder withdrawed, first pivot drove the mounting panel motion, and simultaneously, the pulling force of extension spring drove the mounting panel and resets, and supplementary mounting panel resets for the mounting panel resets more easily.
The present invention may be further configured in a preferred embodiment as: offer the mounting hole that is used for installing the second pivot on the mounting panel, the regulation seam has been seted up to the mounting hole top, adjust seam one end and mounting hole intercommunication, the other end runs through the mounting panel, wear to be equipped with positioning bolt in the regulation seam, positioning bolt and mounting panel threaded connection.
By adopting the technical scheme, the second rotating shaft is installed in the installation hole of the installation plate, then the positioning bolt is inserted into the threaded hole in the installation plate and penetrates through the adjusting seam, and the positioning bolt is screwed down, so that the installation plate is fixed on the second rotating shaft; when the mounting panel needs to be dismounted, the positioning bolt is unscrewed, the mounting panel can be dismounted, and the second rotating shaft is convenient to take down.
The present invention may be further configured in a preferred embodiment as: the mounting plate is in threaded connection with a connecting bolt, and the connecting bolt is positioned on the outer side of the mounting plate; the mounting seat is provided with a connecting rod, one end of the tension spring is hung on the connecting bolt, and the other end of the tension spring penetrates through the connecting rod.
Through adopting above-mentioned technical scheme, the one end hook of extension spring is hung on connecting bolt, and connecting bolt's nut blocks the extension spring, and the condition that reduces the extension spring and follow connecting bolt and slide takes place, has seted up the perforation on the connecting rod, and the other end hook of extension spring is hung on the connecting rod, and the simple to operate of extension spring is swift, makes things convenient for the dismantlement of extension spring simultaneously.
The present invention may be further configured in a preferred embodiment as: the connecting rod is a threaded rod and is in threaded connection with the mounting seat.
By adopting the technical scheme, when the tension spring is installed, the connecting rod is rotated and fixed on the installation seat; when the connecting rod needs to be taken down, the connecting rod is rotated to take down the connecting rod from the mounting seat. The connecting rod is convenient to mount and dismount.
The present invention may be further configured in a preferred embodiment as: the connecting bolt is in threaded connection with a fixing piece for fixing the tension spring, and the tension spring is located between the fixing piece and a nut of the connecting bolt.
Through adopting above-mentioned technical scheme, the mounting can be the nut, and the couple clamp of extension spring is fixed with fixing with the nut of connecting bolt to the mounting for the extension spring is difficult for droing from connecting bolt, simultaneously, makes the extension spring be difficult for taking place to slide.
The present invention may be further configured in a preferred embodiment as: the tensioning roller is cylindric, the circumference has seted up the recess on the outer wall of tensioning roller, and the recess is seted up along the axis of tensioning roller.
By adopting the technical scheme, the occurrence of slipping of the plastic film can be reduced.
The present invention may be further configured in a preferred embodiment as: the connecting plate is of a split structure and comprises two connecting plate single bodies, and the two ends of the first rotating shaft and the second rotating shaft are clamped and fixed between the two connecting plate single bodies.
By adopting the technical scheme, the two connecting plate monomers are provided with the clamping grooves, the first rotating shaft and the second rotating shaft are clamped in the clamping grooves, and the two connecting plate monomers are fixed through the bolts after the two connecting plate monomers are closed, so that the first rotating shaft and the second rotating shaft are fixed with the connecting plates, and the first tensioning roller and the second tensioning roller are connected through the connecting plates; when dismantling the tensioning roller, take off the free bolt of fixed connection board, can take off first pivot and second pivot, make things convenient for dismouting tensioning roller, first pivot and second pivot.
To sum up, the utility model discloses a following at least one useful technological effect:
1. a piston rod of the air cylinder stretches to drive the first rotating shaft to rotate, and the first rotating shaft drives the first tensioning roller and the connecting plate to rotate, so that the tensioning force of the plastic film is adjusted, and the adjustment is convenient;
2. the tensioning roller is provided with a groove, so that the occurrence of slipping of the plastic film can be reduced;
3. the connecting plate, the mounting plate, the connecting rod and the like are detachably connected, so that the plastic film tension adjusting device is convenient to mount and dismount.
Drawings
Fig. 1 is a schematic structural view of the whole of the present invention;
FIG. 2 is a schematic view of a plastic film wound around a tension roller;
fig. 3 is a partial structural view showing a mounting plate.
Reference numerals: 1. a frame; 11. a mounting seat; 111. a connecting rod; 2. a side plate; 3. a tension roller; 31. a first tension roller; 32. a second tension roller; 33. a groove; 4. a first rotating shaft; 5. a second rotating shaft; 6. a connecting plate; 61. a connecting plate single body; 7. a cylinder; 8. mounting a plate; 81. adjusting the seam; 82. positioning the bolt; 83. a connecting bolt; 831. a fixing member; 9. a tension spring; 10. a plastic film.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, for the utility model discloses a plastic film tension adjusting device, including frame 1, set up tensioning roller 3 in frame 1 and set up cylinder 7 in frame 1, the piston rod of cylinder 7 is flexible, drives tensioning roller 3 and rotates to this tensioning roller 3 is adjusted to the tensioning dynamics of plastic film 10, and it is convenient to adjust, has reduced plastic film 10 and has caused the condition emergence that plastic film 10 damaged because of tension is improper.
Referring to fig. 1 and 2, the top end of the frame 1 is integrally formed with two side plates 2, the two side plates 2 are spaced at a certain distance and symmetrically arranged at two ends of the frame 1, and the tension roller 3 is arranged between the two side plates 2. Be provided with first pivot 4 and second pivot 5 between two blocks of curb plates 2, first pivot 4 and the parallel arrangement of second pivot 5, and first pivot 4 and second pivot 5 are cylindric, and the both ends of second pivot 5 are passed through the bearing and are rotated respectively and connect on two blocks of curb plates 2, and the bearing can reduce the friction between second pivot 5 and the curb plate 2.
Referring to fig. 1 and 2, the first rotating shaft 4 and the second rotating shaft 5 are connected through a connecting plate 6, the connecting plate 6 is disposed at two ends of the first rotating shaft 4 and the second rotating shaft 5, and the connecting plate 6 is located inside the frame 1. Connecting plate 6 is to open structure, including two connecting plate monomers 61, has seted up the draw-in groove on two connecting plate monomers 61, and two connecting plate monomers 61 are fashionable to the right-hand member, press from both sides the both ends of first pivot 4 and second pivot 5 in the draw-in groove, and rethread bolt is fixed with two connecting plate monomers 61. Two ends of the first rotating shaft 4 extend out of the frame 1, and the first rotating shaft 4 is positioned above the frame 1. The cylinder 7 is rotatably connected to the side plate 2 and located outside the side plate 2, and a piston rod of the cylinder 7 is rotatably connected to one end of the first rotating shaft 4 extending out of the rack 1.
Referring to fig. 1 and 2, the tension roller 3 includes a first tension roller 31 and a second tension roller 32, the first tension roller 31 and the second tension roller 32 may be the same, both the first tension roller 31 and the second tension roller 32 are cylindrical, the first tension roller 31 is coaxially and rotatably connected to the first rotating shaft 4 through a bearing, and the second tension roller 32 is coaxially and rotatably connected to the second rotating shaft 5 through a bearing. The first rotating shaft 4 penetrates through the first tensioning roller 31, and two ends of the first rotating shaft extend out of the first tensioning roller 31, and the second rotating shaft 5 penetrates through the second tensioning roller 32, and two ends of the second rotating shaft extend out of the second tensioning roller 32. A plurality of grooves 33 are uniformly formed in the outer wall of the ring tension roller 3, the grooves 33 are formed along the axis of the tension roller 3, and the occurrence of slipping of the plastic film 10 on the tension roller 3 can be reduced.
The plastic film 10 is sequentially wound around the surfaces of the first tension roller 31 and the second tension roller 32, and the plastic film 10 passes through the lower part of the first tension roller 31 and then passes through the upper part of the second tension roller 32. The plastic film 10 moves to drive the first tensioning roller 31 and the second tensioning roller 32 to rotate, when a piston rod of the air cylinder 7 extends, the piston rod drives the first rotating shaft 4 to move downwards, the first rotating shaft 4 drives one end, close to the first rotating shaft 4, of the connecting plate 6 to move downwards, the other end of the connecting plate 6 rotates upwards around a connecting point on the side plate 2, the plastic film 10 is pressed by the first tensioning roller 31 to be tighter, and therefore the tensioning force of the plastic film 10 by the first tensioning roller 31 is increased; when the piston rod of the air cylinder 7 is retracted, the piston rod drives the first rotating shaft 4 to move upwards, the first rotating shaft 4 drives one end, close to the first rotating shaft 4, of the connecting plate 6 to move upwards, the other end of the connecting plate 6 rotates downwards around a connecting point on the side plate 2, the first rotating shaft 4 drives the first tensioning roller 31 to move upwards, the first tensioning roller 31 and the plastic film 10 are loosened, and the tensioning force of the first tensioning roller 31 on the plastic film 10 is reduced; therefore, the tensioning force of the plastic film 10 is adjusted, and the possibility that the plastic film 10 is damaged due to improper tensioning force is reduced.
Referring to fig. 1 and 3, a mounting plate 8 is disposed at one end of the second rotating shaft 5, the mounting plate 8 and the cylinder 7 are located at the same side, and the mounting plate 8 is located at the outer side of the side plate 2. The mounting plate 8 is provided with a mounting hole matched with the second rotating shaft 5, and one end of the second rotating shaft 5 is inserted into the mounting hole. The mounting plate 8 is further provided with an adjusting slit 81 which is positioned above the mounting hole, and the adjusting slit 81 can be a long and narrow slit. One end of the adjusting slit 81 is communicated with the mounting hole, and the other end penetrates through the mounting plate 8. The mounting plate 8 is internally threaded with a positioning bolt 82, and the positioning bolt 82 penetrates through the adjusting slot 81.
One end of the second rotating shaft 5 is installed in the installation hole of the installation plate 8, then the positioning bolt 82 is inserted into the threaded hole on the installation plate 8 and penetrates through the adjusting slot 81, the positioning bolt 82 is rotated, and the positioning bolt 82 is screwed, so that the installation plate 8 and the second rotating shaft 5 are clamped and fixed; when the mounting plate 8 needs to be detached, the positioning bolt 82 is loosened, so that the mounting plate 8 can be detached, and the second rotating shaft 5 is convenient to take down.
Referring to fig. 1 and 3, a connection bolt 83 is further screwed to the mounting plate 8, and the connection bolt 83 is located outside the mounting plate 8. The outer side of the frame 1 is fixed with a mounting seat 11, and the mounting seat 11 and the mounting plate 8 are located on the same side of the frame 1. Threaded connection has connecting rod 111 on the mount pad 11, and connecting rod 111 is the threaded rod, and has seted up the perforation on the connecting rod 111. A tension spring 9 is arranged between the mounting plate 8 and the mounting seat 11, one end of the tension spring 9 is hung on the connecting bolt 83, and the other end of the tension spring 9 is hung in the through hole. The tension spring 9 is convenient and quick to install, and meanwhile, the connecting rod 111 is convenient to disassemble and assemble. The connecting bolt 83 is screwed with a fixing member 831, the fixing member 831 may be a nut, and the tension spring 9 is located between the fixing member 831 and the nut of the connecting bolt 83. The fixing part 831 is matched with the nut of the connecting bolt 83 to clamp and fix the tension spring 9 between the fixing part 831 and the connecting bolt 83, so that the situation that the tension spring 9 falls off is reduced, and the possibility that the tension spring 9 slides is reduced.
When a piston rod of the air cylinder 7 extends, the first rotating shaft 4 drives the mounting plate 8 to move, the mounting plate 8 drives one end, close to the mounting plate 8, of the tension spring 9 to move upwards, the tension spring 9 extends, and the tension spring 9 can generate a tension force for restoring the original length; when the piston rod of cylinder 7 withdraws, under the common cooperation of cylinder 7 and extension spring 9, drive mounting panel 8 and reset, extension spring 9 to mounting panel 8 pulling force can assist mounting panel 8 to reset for mounting panel 8 resets more easily.
The working principle of the plastic film tension adjusting device is as follows:
the plastic film 10 is around establishing in proper order on the surface of first tensioning roller 31 and second tensioning roller 32, and the piston rod of cylinder 7 is flexible, drives first tensioning roller 31 and rotates, and first tensioning roller 31 drives connecting plate 6 and rotates, and connecting plate 6 drives second tensioning roller 32 and rotates to this tensioning dynamics of adjusting tensioning roller 3 to plastic film 10 reduces the plastic film 10 and takes place because of the improper condition of damaging of tensioning dynamics.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a plastic film tension adjusting device, includes frame (1), symmetry be fixed in two blocks of curb plates (2) on frame (1) and install tensioning roller (3) between two blocks of curb plates (2), its characterized in that: a first rotating shaft (4) and a second rotating shaft (5) are arranged between the two side plates (2); two ends of the second rotating shaft (5) are rotatably connected to the side plate (2), the first rotating shaft (4) and the second rotating shaft (5) are arranged in parallel, the first rotating shaft (4) and the second rotating shaft (5) are connected through a connecting plate (6), and the connecting plate (6) is arranged at two ends of the first rotating shaft (4) and the second rotating shaft (5); two ends of the first rotating shaft (4) extend out of the rack (1); tensioning roller (3) include first tensioning roller (31) and second tensioning roller (32), first tensioning roller (31) and second tensioning roller (32) rotate respectively and connect on first pivot (4) and second pivot (5), the outside of curb plate (2) is rotated and is connected with cylinder (7), the piston rod of cylinder (7) is connected with the one end rotation that frame (1) was stretched out in first pivot (4).
2. The plastic film tension adjusting apparatus as claimed in claim 1, wherein: the outside of curb plate (2) is provided with mounting panel (8), mounting panel (8) are fixed with the centre gripping of second pivot (5), the outside of frame (1) is fixed with mount pad (11), be provided with extension spring (9) between mount pad (11) and mounting panel (8).
3. The plastic film tension adjusting apparatus as claimed in claim 2, wherein: offer the mounting hole that is used for installing second pivot (5) on mounting panel (8), regulation seam (81) have been seted up to the mounting hole top, regulation seam (81) one end and mounting hole intercommunication, the other end run through mounting panel (8), wear to be equipped with positioning bolt (82) in regulation seam (81), positioning bolt (82) and mounting panel (8) threaded connection.
4. The plastic film tension adjusting apparatus as claimed in claim 2, wherein: the mounting plate (8) is in threaded connection with a connecting bolt (83), and the connecting bolt (83) is located on the outer side of the mounting plate (8); the mounting seat (11) is provided with a connecting rod (111), one end of the tension spring (9) is hung on the connecting bolt (83), and the other end of the tension spring penetrates through the connecting rod (111).
5. The plastic film tension adjusting apparatus as claimed in claim 4, wherein: the connecting rod (111) is a threaded rod, and the connecting rod (111) is in threaded connection with the mounting seat (11).
6. The plastic film tension adjusting apparatus as claimed in claim 4, wherein: connecting bolt (83) threaded connection has mounting (831) that is used for fixed extension spring (9), extension spring (9) are located between the nut of mounting (831) and connecting bolt (83).
7. The plastic film tension adjusting apparatus as claimed in claim 1, wherein: tensioning roller (3) are cylindric, circumference is seted up fluted (33) on the outer wall of tensioning roller (3), and recess (33) are seted up along the axis of tensioning roller (3).
8. The plastic film tension adjusting apparatus as claimed in claim 1, wherein: the connecting plate (6) is of a split structure, the connecting plate (6) comprises two connecting plate single bodies (61), and two ends of the first rotating shaft (4) and the second rotating shaft (5) are clamped and fixed between the two connecting plate single bodies (61).
Priority Applications (1)
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CN202020098548.5U CN211998077U (en) | 2020-01-15 | 2020-01-15 | Plastic film tension adjusting device |
Applications Claiming Priority (1)
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CN202020098548.5U CN211998077U (en) | 2020-01-15 | 2020-01-15 | Plastic film tension adjusting device |
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CN211998077U true CN211998077U (en) | 2020-11-24 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113580606A (en) * | 2021-10-08 | 2021-11-02 | 烟台佑利技术有限公司 | Tire manufacturing rubber inner liner calendering machinery |
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2020
- 2020-01-15 CN CN202020098548.5U patent/CN211998077U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113580606A (en) * | 2021-10-08 | 2021-11-02 | 烟台佑利技术有限公司 | Tire manufacturing rubber inner liner calendering machinery |
CN113580606B (en) * | 2021-10-08 | 2021-12-14 | 烟台佑利技术有限公司 | Tire manufacturing rubber inner liner calendering machinery |
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