CN213971334U - Film cutting device - Google Patents
Film cutting device Download PDFInfo
- Publication number
- CN213971334U CN213971334U CN202022139529.5U CN202022139529U CN213971334U CN 213971334 U CN213971334 U CN 213971334U CN 202022139529 U CN202022139529 U CN 202022139529U CN 213971334 U CN213971334 U CN 213971334U
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- Prior art keywords
- roller
- film
- cutting
- traction device
- traction
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- 238000005520 cutting process Methods 0.000 title claims abstract description 95
- 239000010408 film Substances 0.000 claims description 121
- 239000010409 thin film Substances 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses a film cutting device, including cylinder device, first draw gear, cutting portion, second draw gear. The roller device is cylindrical and can freely rotate around the axis of the roller device, and the surface of the roller device is wound with a film to be cut; the first traction device is arranged on one side of the roller device; the second traction device is arranged below one end of the first traction device, which is used for drawing the film out; the cutting part is arranged between the first traction device and the second traction device; the surface linear velocities of the first traction device and the second traction device are the same, the second traction device can control the size of the traction gap, and the film can automatically enter the traction gap of the second traction device. The utility model discloses a film cutting device has the function that can cut the film automatically, need not manual operation and both can realize automatic cutting the film, and then improves film cutting's efficiency.
Description
Technical Field
The utility model relates to a cutting field especially relates to a film cutting device.
Background
The film is used as a soft material with certain toughness, is very inconvenient when needing to be cut, needs to be stretched and tightened to cut the film, and needs to be manually and sequentially stretched and tightened to cut the film when needing to cut a long film into a plurality of sections, so that the operation is labor-consuming and low in efficiency.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect of inefficiency that manual cutting film exists among the prior art, the utility model discloses the problem that needs to solve lies in providing a film cutting device, has the function that can cut the film automatically, need not manual operation and both can realize automatic cutting the film, and then improves film cutting's efficiency.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pair of film cutting device, include:
the roller device is cylindrical and can freely rotate around the axis of the roller device, and the surface of the roller device is wound with a film to be cut;
the first traction device is arranged on one side of the roller device and is used for drawing out the thin film on the roller device;
the second traction device is arranged below one end of the film drawn by the first traction device and used for performing secondary traction and lifting on the film drawn by the first traction device;
the cutting part is arranged between the first traction device and the second traction device and is used for cutting off the film from the space between the first traction device and the second traction device;
the surface linear velocities of the first traction device and the second traction device are the same, the second traction device can control the size of the traction gap, and the film can automatically enter the traction gap of the second traction device.
Preferably, the first traction device comprises a pair of meshed roller sets, each roller set comprises an upper roller and a lower roller which are same in size, the upper roller and the lower roller have the same rotating speed, the film is positioned between the upper roller set and the lower roller set, and the axes of the roller sets are parallel to the axis of the roller device.
Preferably, the first traction device is provided with a stepping motor driving roller set capable of accurately controlling the rotation speed, and the length of the film stretched by the first traction device is controlled by controlling the rotation number of the stepping motor, so that the length of the film in each cutting process is controlled.
Preferably, the second traction device comprises:
a left roller having an axis parallel to an axis of the drum device;
the right roller and the left roller have the same size and the same rotating speed, and are meshed when the film needs to be pulled;
and the air cylinder pushing device is arranged on the right roller and used for controlling the right roller to be in close contact and meshed with the left roller and controlling the right roller to be far away from the left roller.
Preferably, the cutting part includes:
a first cylinder;
one end of the left-right motion platform is movably arranged on the fixed plate, one end of the left-right motion platform is connected with the first air cylinder, the left-right motion platform is controlled to move left and right through the first air cylinder, and a sliding groove is formed in the left-right motion platform;
the sliding sleeve is arranged in the sliding groove of the left-right movement platform in a sliding manner;
one end of the second cylinder is fixed on the left-right movement platform, and the other end of the second cylinder is connected with the sliding sleeve and used for controlling the sliding sleeve to slide in the sliding groove;
the cutter head is flat, the length of the cutting edge of the cutter head is larger than the width of the thin film, the cutter head is arranged on the through hole of the sliding sleeve in a sliding mode, and a cutting control device used for controlling the second air cylinder to work is arranged between the non-cutting edge end of the cutter head and the sliding sleeve;
the backup pad, the backup pad set up in first draw gear with between the second draw gear, just the backup pad with the tool bit is in the both sides of film respectively, the backup pad with the tool bit cooperation is so that the tool bit cuts the film.
Preferably, the cutting control means comprises:
the two ends of the elastic piece are respectively fixed on the cutter head and the inner wall of the sliding sleeve;
the switch button is arranged on the inner wall of the sliding sleeve and electrically connected with the second cylinder, the first cylinder extends to enable the cutter head to be close to and matched with the supporting plate, the elastic force of the elastic piece is overcome by the cutter head, the switch button is triggered, and the second cylinder drives the sliding sleeve and the cutter head to perform cutting action.
The utility model has the advantages that:
the utility model provides a film cutting device, which comprises a roller device, a first traction device, a second traction device and a cutting part; the film to be cut is wound on the surface of the roller device, the roller device can rotate freely, the film on the roller device is sequentially pulled by the first traction device and the second traction device, the cutting part is arranged between the first traction device and the second traction device, and when the film is cut, the film is tensioned and straightened by the first traction device and the second traction device (when the film needs to be cut, the first traction device and the second traction device stop rotating, in order to ensure that the film between the first traction device and the second traction device can be straightened, the film between the first traction device and the second traction device can slightly rotate for a certain angle relative to the first traction device before the second traction device stops rotating), so that the film can be cut by the cutting part. After the cutting is finished, the first traction device and the second traction device rotate again, and a traction gap between the second traction devices becomes large (the second traction device can be a roller set which can rotate oppositely, when the cutting is finished, the left roller and the right roller are separated from each other, and the gap between the left roller and the right roller is enlarged, so that a film which is pulled by the first traction device from the upper part can automatically enter between the left roller and the right roller), the tail end of the film enters into the traction gap of the second traction device, then the traction gap of the second traction device becomes small until the film is in close contact with the film and pulls the film, and then the film can be cut for the second time. The automatic cutting of the film can be realized by repeating the steps. To sum up, the utility model discloses a film cutting device has the function that can cut the film automatically, need not manual operation and both can realize automatic cutting the film, and then improves film cutting's efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a film cutting apparatus disclosed in the present invention;
FIG. 2 is a schematic view of the cutting structure of the film cutting apparatus;
FIG. 3 is a schematic structural view of the film cutting apparatus after the film is cut;
FIG. 4 is a schematic view of the cutting part;
fig. 5 is a cross-sectional view at a-a in fig. 4.
In the figure:
1. a drum device; 2. a first traction device; 3. a second traction device; 4. a cutting section; 5. a film to be cut; 31. a left roller; 32. a right roller; 41. a first cylinder; 42. a left and right motion platform; 43. a sliding sleeve; 44. a second cylinder; 45. a cutter head; 46. a support plate; 47. a cutting control device; 471. an elastic member; 472. and a button is switched on and off.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 5, the film cutting apparatus provided in this embodiment includes a roller device 1, a first traction device 2, a cutting portion 4, and a second traction device 3. The roller device 1 is cylindrical and can rotate freely around its own axis, and the surface of the roller device 1 is wound with a film to be cut. The first traction device 2 is disposed on one side of the roller device 1, and the first traction device 2 is used for drawing out the film on the roller device 1. The second traction device 3 is arranged below one end of the first traction device 2 for drawing the film, and is used for performing secondary traction and drawing on the film drawn by the first traction device 2. The cutting section 4 is provided between the first drawing device 2 and the second drawing device 3, and cuts the film from between the first drawing device 2 and the second drawing device 3. The surface linear velocities of the first traction device 2 and the second traction device 3 are the same, and the second traction device 3 can control the size of the traction gap, so that the film can automatically enter the traction gap of the second traction device 3.
Wherein the film to be cut is wound on the surface of the roller device 1, the roller device 1 can rotate freely, the film on the roller device 1 is drawn by the first drawing device 2 and the second drawing device 3 in sequence, and the cutting part 4 is arranged between the first traction device 2 and the second traction device 3, when the film is cut, the first traction device 2 and the second traction device 3 tension and straighten the film (when the film needs to be cut, the first traction device 2 and the second traction device 3 stop rotating, and in order to enable the film between the first traction device 2 and the second traction device 3 to be straightened, the second traction device 3 can slightly rotate for a certain angle relative to the first traction device 2 before stopping rotating, so that the film between the first traction device 2 and the second traction device 3 can be straightened), so that the film can be cut by the cutting portion 4. After the cutting is finished, the first traction device 2 and the second traction device 3 rotate again, and a traction gap between the second traction device 3 becomes large (the second traction device 3 can be a roller set which rotates oppositely, when the cutting is finished, the left roller and the right roller are separated from each other, and the gap between the left roller and the right roller is enlarged, so that a film which is pulled by the first traction device 2 from the upper part can automatically enter between the left roller and the right roller), so that the tail end of the film enters the traction gap of the second traction device 3, then the traction gap of the second traction device 3 becomes small until the film is in close contact with the film and pulls the film, and then the film cutting action for the second time can be carried out. The automatic cutting of the film can be realized by repeating the steps. To sum up, the utility model discloses a film cutting device has the function that can cut the film automatically, need not manual operation and both can realize automatic cutting the film, and then improves film cutting's efficiency.
Further, the first traction device 2 comprises a pair of meshed roller sets, each roller set comprises an upper roller and a lower roller which are same in size, the upper roller and the lower roller have the same rotating speed, the film is positioned between the upper roller set and the lower roller set, and the axes of the roller sets are parallel to the axis of the roller device 1. The film is positioned between two meshed rollers, the film is pulled out from the roller device 1 through the rotation of the rollers, and the linear speed of the rollers is the moving speed of the film because the upper roller and the lower roller have the same rotating speed and are tightly meshed.
Furthermore, the first traction device 2 is provided with a stepping motor driving roller set which can accurately control the rotating speed, and the length of the film which is drawn and stretched by the first traction device 2 is controlled by controlling the rotating number of turns of the stepping motor, so that the length of the film during each cutting is controlled. The number of rotation turns of the rollers is controlled by controlling the number of rotation turns of the stepping motor, so that the length of the film pulled by the roller group is controlled, and further the cutting length of the film is controlled (since the cutting position of the cutting part 4 is fixed, after the cutting is finished last time, the length of the film pulled by the first traction device 2 rotating again is the length of the film cut next time). And then the length of the cut film can be accurately controlled by controlling the number of turns of the stepping motor in each rotation through a program.
Further, the second traction device 3 includes a left roller 31, a right roller 32, and a cylinder pushing device. The axis of the left roller 31 is parallel to the axis of the drum device 1. The right roller 32 has the same speed as the left roller 31 and the right roller 32 engages the left roller 31 when the film is to be drawn. The cylinder pushing means is provided on the right roller 32 for controlling the right roller 32 to be brought into close contact engagement with the left roller 31 and controlling the right roller 32 to be spaced apart from the left roller 31. The second traction device 3 is arranged right below the first traction device 2, so that the film drawn by the first traction device 2 can automatically enter the traction gap of the second traction device 3 under the action of self gravity (before the end of the film enters the traction gap of the second traction device 3, the second traction device 3 automatically enlarges the traction gap so as to facilitate the end of the film to enter). The cylinder pushing device is a structure for pushing and controlling the right roller 32 through the cylinder, when the film is required to be pulled by tightly engaging the left roller 31 with the right roller 32, the cylinder piston rod extends to enable the right roller 32 to be tightly attached to the left roller 31, and similarly, when the pulling gap of the second pulling device 3 is required to be enlarged, the cylinder piston rod contracts to drive the right roller 32 to be far away from the left roller 31.
Further, the cutting part 4 comprises a first cylinder 41, a left-right movement platform 42, a sliding sleeve 43, a second cylinder 44, a cutter head 45 and a support plate 46. The end of the first cylinder 41 is fixed on the frame of the device, and the piston rod is connected with the left and right motion platform 42. One end of the left and right moving platform 42 is movably arranged on the fixed plate, the first cylinder 41 controls the left and right moving platform 42 to move left and right, and a sliding groove is arranged on the left and right moving platform 42. The sliding sleeve 43 is slidably disposed in the sliding slot of the left and right moving platforms 42. One end of the second cylinder 44 is fixed on the left-right movement platform 42, and the other end is connected with the sliding sleeve 43, for controlling the sliding sleeve 43 to slide in the sliding slot. The cutting head 45 is flat, the length of the cutting edge of the cutting head 45 is greater than the width of the film, the cutting edge of the cutting head 45 is perpendicular to the film at the cutting position, the cutting head 45 is slidably disposed on the through hole of the sliding sleeve 43, and a cutting control device 47 for controlling the second air cylinder 44 to work is disposed between the non-cutting edge end of the cutting head 45 and the sliding sleeve 43. The supporting plate 46 is arranged between the first traction device 2 and the second traction device 3, the supporting plate 46 and the cutter head 45 are respectively arranged at two sides of the film, and the supporting plate 46 is matched with the cutter head 45 so that the cutter head 45 can conveniently cut the film. When the film needs to be cut, the second traction device 3 and the first traction device 2 stop rotating, the film between the first traction means 2 and the second traction means 3 is made static and taut, then the piston rod of the first cylinder 41 is extended, so that the left and right moving platform 42 moves towards the position close to the film and the cutter head 45 moves towards the film, until the cutter head 45 is pressed against the supporting plate 46 (at this time, the film is pressed between the cutter head 45 and the supporting plate 46), then, the cutter head 45 triggers the cutting control means 47 under the reaction force of the support plate 46, so that the second cylinder 44 pushes the sliding sleeve 43 and the cutter head 45 to move back and forth once along the width direction of the film, so that the cutter head 45 cuts the film twice back and forth to cut the film, the first cylinder 41 is then returned to its original position, so that the cutting head 45 is moved to its initial position, and this cutting operation is completed.
Further, the cutting control device 47 includes an elastic member 471 and a switch button 472. The two ends of the elastic member 471 are fixed on the cutting head 45 and the inner wall of the sliding sleeve 43, respectively. The switch button 472 is disposed on the inner wall of the sliding sleeve 43 and electrically connected to the second cylinder 44, and when the first cylinder 41 extends to make the cutter head 45 approach and cooperate with the supporting plate 46, the cutter head 45 overcomes the elastic force of the elastic member 471 and triggers the switch button 472, so that the second cylinder 44 drives the sliding sleeve 43 and the cutter head 45 to perform a cutting operation. When the piston rod of the first cylinder 41 extends to make the cutter head 45 move towards the film direction until the cutter head 45 abuts against the support plate 46, the cutter head 45 overcomes the elastic force of the elastic member 471 (a spring or an elastic sheet and the like) to move towards the switch button 472 direction under the action of the reaction force of the support plate 46, and triggers the switch button 472, after the switch button 472 is triggered, a signal (a signal that the cutter and the support plate 46 tightly press the film) is transmitted to the second cylinder 44 through electric connection, so that the two cylinders make one reciprocating motion of contraction after extension, and then the cutter head 45 cuts the film under the driving of the second cylinder 44.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (6)
1. A film cutting apparatus, comprising:
the roller device (1), the roller device (1) is cylindrical and can rotate freely around the axis of the roller device, and the surface of the roller device (1) is wound with a film to be cut;
a first traction device (2), wherein the first traction device (2) is arranged on one side of the roller device (1), and the first traction device (2) is used for drawing out the thin film on the roller device (1);
the second traction device (3) is arranged below one end of the film drawn by the first traction device (2) and is used for performing secondary traction and lifting on the film drawn by the first traction device (2);
a cutting part (4), wherein the cutting part (4) is arranged between the first traction device (2) and the second traction device (3) and is used for cutting off the thin film from the position between the first traction device (2) and the second traction device (3);
the surface linear velocities of the first traction device (2) and the second traction device (3) are the same, the second traction device (3) can control the size of the traction gap, and the film can automatically enter the traction gap of the second traction device (3).
2. The film cutting apparatus according to claim 1, wherein:
the first traction device (2) comprises a pair of meshed roller groups, each roller group comprises an upper roller and a lower roller which are the same in size, the upper roller and the lower roller have the same rotating speed, the film is positioned between the upper roller group and the lower roller group, and the axes of the roller groups are parallel to the axis of the roller device (1).
3. A film cutting apparatus according to claim 2, wherein:
the first traction device (2) is provided with a stepping motor driving roller set capable of accurately controlling the rotating speed, and the length of the film stretched by traction of the first traction device (2) is controlled by controlling the number of rotating turns of the stepping motor, so that the length of the film during cutting at each time is controlled.
4. The film cutting apparatus according to claim 1, wherein the second traction means (3) comprises:
a left roller (31), the axis of the left roller (31) being parallel to the axis of the drum device (1);
a right roller (32), wherein the right roller (32) and the left roller (31) have the same size and the same rotating speed, and when the film needs to be drawn, the right roller (32) is meshed with the left roller (31);
and the air cylinder pushing device is arranged on the right roller (32) and is used for controlling the right roller (32) to be in close contact engagement with the left roller (31) and controlling the right roller (32) to be far away from the left roller (31).
5. The film cutting device according to claim 1, wherein the cutting portion (4) comprises:
a first cylinder (41);
one end of the left-right movement platform (42) is movably arranged on the fixed plate, one end of the left-right movement platform (42) is connected with the first air cylinder (41), the left-right movement platform (42) is controlled to move left and right through the first air cylinder (41), and a sliding groove is formed in the left-right movement platform (42);
the sliding sleeve (43) is arranged in the sliding groove of the left-right movement platform (42) in a sliding manner;
one end of the second air cylinder (44) is fixed on the left-right movement platform (42), and the other end of the second air cylinder (44) is connected with the sliding sleeve (43) and is used for controlling the sliding sleeve (43) to slide in the sliding groove;
the cutting head (45) is flat, the length of a cutting edge of the cutting head (45) is larger than the width of a thin film, the cutting head (45) is arranged on the through hole of the sliding sleeve (43) in a sliding mode, and a cutting control device (47) used for controlling the second air cylinder (44) to work is arranged between the non-cutting edge end of the cutting head (45) and the sliding sleeve (43);
the supporting plate (46), the supporting plate (46) set up in first draw gear (2) with between second draw gear (3), just the supporting plate (46) with tool bit (45) are in the both sides of film respectively, the supporting plate (46) with tool bit (45) cooperation is so that tool bit (45) cut the film.
6. The film cutting apparatus according to claim 5, wherein the cutting control means (47) comprises:
the two ends of the elastic piece (471) are respectively fixed on the tool bit (45) and the inner wall of the sliding sleeve (43);
the switch button (472) is arranged on the inner wall of the sliding sleeve (43) and is electrically connected with the second air cylinder (44), and when the first air cylinder (41) extends to enable the cutter head (45) to approach and match with the supporting plate (46), the cutter head (45) overcomes the elastic force of the elastic piece (471) and triggers the switch button (472), so that the second air cylinder (44) drives the sliding sleeve (43) and the cutter head (45) to perform cutting action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022139529.5U CN213971334U (en) | 2020-09-25 | 2020-09-25 | Film cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022139529.5U CN213971334U (en) | 2020-09-25 | 2020-09-25 | Film cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213971334U true CN213971334U (en) | 2021-08-17 |
Family
ID=77254850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022139529.5U Expired - Fee Related CN213971334U (en) | 2020-09-25 | 2020-09-25 | Film cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213971334U (en) |
-
2020
- 2020-09-25 CN CN202022139529.5U patent/CN213971334U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |