CN220972488U - Film cutting device - Google Patents
Film cutting device Download PDFInfo
- Publication number
- CN220972488U CN220972488U CN202323012068.5U CN202323012068U CN220972488U CN 220972488 U CN220972488 U CN 220972488U CN 202323012068 U CN202323012068 U CN 202323012068U CN 220972488 U CN220972488 U CN 220972488U
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- movable
- base
- knife
- moving
- fixed knife
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- 238000005520 cutting process Methods 0.000 title claims abstract description 50
- 238000001125 extrusion Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Nonmetal Cutting Devices (AREA)
Abstract
The utility model discloses a film cutting device, which comprises a base, a fixed knife, a linear moving piece, a movable knife and an elastic extrusion piece, wherein the fixed knife is arranged on the base; the linear moving piece is provided with a moving end which can face to approach to or depart from the fixed knife; the movable knife is arranged on the moving end, the edge surface of the movable knife is provided with an extending plate, the extending plate is propped against the fixed knife, and when the moving end moves towards the fixed knife, the edge of the movable knife is tangential to the edge of the fixed knife; the elastic extrusion piece is arranged on the base, the elastic extrusion piece is propped against the extending plate, and the extrusion force of the elastic extrusion piece faces the fixed knife, so that the extending plate and the fixed knife are kept propped against each other. Through adopting above-mentioned setting, can reduce because long-term mechanical vibration, lead to cutting the too big problem in membrane position double knives clearance, avoid the film to cut continuous phenomenon.
Description
Technical Field
The utility model belongs to the technical field of film cutting structures, and particularly relates to a film cutting device.
Background
The existing automatic film sticking machine mainly comprises a film conveying piece, a film sticking piece and a film cutting piece, wherein the film conveying piece is used for expanding and conveying films along a specified direction, the film sticking piece is used for sticking the films on corresponding products, and the film cutting piece is used for cutting the films.
The film cutting piece is mainly divided into a single-blade film cutting piece and a double-blade film cutting piece, and the film is cut difficultly due to the fact that the film has high flexibility, and therefore the film is stretched in the film cutting process. And a film cutting piece with double-cutter phase-shifting is adopted, and in the film cutting process, the double-cutter phase-shifting is utilized to realize film cutting. However, in the actual use process, vibration is generated when the film cutting piece works, and a large gap exists between the double cutters for a long time, so that the film cutting effectiveness is reduced.
Disclosure of utility model
The utility model provides a film cutting device which can reduce the phenomenon that a film is continuously cut due to overlarge double-knife clearance at a film cutting position caused by long-term mechanical vibration.
In order to solve the above problems, the present utility model provides the following means:
A film cutting device comprises a base, a fixed knife, a linear moving piece, a movable knife and an elastic extrusion piece, wherein the fixed knife is arranged on the base; the linear moving piece is provided with a moving end which can face to approach to or depart from the fixed knife; the movable knife is arranged on the moving end, the edge surface of the movable knife is provided with an extending plate, the extending plate is propped against the fixed knife, and when the moving end moves towards the fixed knife, the edge of the movable knife is tangential to the edge of the fixed knife; the elastic extrusion piece is arranged on the base, the elastic extrusion piece is propped against the extending plate, and the extrusion force of the elastic extrusion piece faces the fixed knife, so that the extending plate and the fixed knife are kept propped against each other.
The film cutting device has the following beneficial effects: through setting up the extension board at the movable knife, and the side of extension board and the side coplane of movable knife utilize extension board and the side of fixed knife to offset, simultaneously through setting up elastic extrusion spare, utilize the extrusion end extrusion of elastic extrusion spare to extend the board and the fixed knife remains the state of offseting all the time, thereby reduces the condition that has the clearance between fixed knife and the movable knife, so when the straight line moving piece drove movable knife and fixed knife tangent, can improve the validity of movable knife and fixed knife cutting film to improve the life of cutting the membrane device.
In some embodiments, the elastic extrusion comprises a spring and a movable frame, the movable frame is hinged on the base, one end of the spring is installed on the base, the other end of the spring abuts against one side of the movable frame, and the movable frame can abut against the other side of the spring on the extending plate under the elastic action of the spring.
Therefore, by arranging the spring, the spring force provided by the spring is utilized, and when the spring generates an elastic force action on the movable frame, the movable frame is abutted against the extending plate, so that the extending plate is abutted against the fixed knife.
In some embodiments, the movable frame is L-shaped, one end of the movable frame is hinged with the base, the other end of the movable frame is connected with the end of the spring far away from the base, and a pressing block is arranged at the corner of the movable frame and is abutted against the extending plate towards the fixed knife direction under the action of the elasticity of the spring; when the spring extends out, the pressing block presses the extending plate towards the fixed knife.
Therefore, when the spring extends, the corner position of the movable frame can be inclined towards the extending plate, the pressing block can be abutted against the extending plate, and the extending plate can be abutted against the fixed knife.
In some embodiments, the elastic extrusion further comprises a pressing roller rotatably connected to the pressing block, the pressing block being abutted against the extension plate by a tread of the pressing roller.
Therefore, the pressing roller is arranged on the pressing block in a rotating mode, and when the pressing roller extrudes the extending block, the sliding friction force can be converted into rolling friction force by the pressing roller, so that the damage caused by transitional friction is reduced.
In some embodiments, the linear moving member comprises a moving frame, a driving member, a guiding member and a transmission rod, wherein the moving frame is a moving end, the moving frame is in sliding fit with the base, the movable cutter is installed on the moving frame, the driving member is relatively fixed with the base, the driving end of the driving member is connected with the guiding member, one end of the transmission rod is hinged to a position, away from the driving end, of the guiding member, the other end of the transmission rod is hinged to the moving frame, and the driving member, the guiding member, the transmission rod and the moving frame form a crank block structure to drive the moving frame to linearly move.
Therefore, through the crank block mechanism formed by the driving piece, the guide piece, the transmission rod and the movable frame, the movable frame can realize the function of linear reciprocating motion under the rotation driving of the driving piece.
In some embodiments, the guide employs an eccentric wheel that rotates coaxially with the drive end of the driver, and one end of the drive rod is hinged to a side of the eccentric wheel.
Therefore, the guide piece adopts an eccentric wheel structure, and the eccentric wheel is utilized to transmit corresponding power to the transmission rod, so that the motion stability of the transmission rod can be improved, and the stability of the linear reciprocating motion of the movable frame is further improved.
In some embodiments, the base is provided with a sliding rail, the length direction of the sliding rail is parallel to the moving direction of the moving frame, the moving frame is provided with a sliding block, and the sliding block is in sliding fit with the sliding rail.
Therefore, the sliding rail and the sliding block are arranged between the movable frame and the base, so that the function of stably sliding the movable frame on the base is realized.
In some embodiments, the number of the extending plates is two, the two extending plates are distributed at two ends of the length direction of the movable knife, and the two extending plates respectively correspond to two ends of the length direction of the fixed knife.
Therefore, the two ends of the movable knife are provided with the extending plates, and the two extending plates correspond to the two ends of the fixed knife, so that the shielding condition of the cutting edge when the fixed knife is tangent to the movable knife can be reduced, and the abutting force can be uniformly distributed on the movable knife and the fixed knife, so that the stability of the movable knife for abutting against the side face of the fixed knife by the extending plates is improved.
In some embodiments, a cutting position is formed between the fixed knife and the movable knife, and the base is provided with an opening opposite to the cutting position.
Therefore, the opening is formed in the base, so that the film to be cut is placed in the base from the opening, and the movable knife is convenient to be tangent with the fixed knife, so that the film is cut.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of another view of the present utility model;
Fig. 3 is a schematic diagram of a side view of the present utility model.
In the figure:
1. A base; 11. an opening; 12. a slide rail;
2. fixing the knife;
3. A linear moving member; 31. a moving rack; 311. a slide block; 32. a driving member; 33. a guide member; 34. a transmission rod;
4. a movable knife; 41. a protruding plate;
5. An elastic extrusion; 51. a spring; 52. a movable frame; 521. pressing the blocks; 53. pressing the roller.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1 to 3, a film cutting device is mainly used for film pasting equipment, and after film cutting by the film cutting device, films are pasted on the surfaces of corresponding products by the film pasting equipment, so that the functions of fresh keeping or packaging are realized; the device comprises a base 1, a fixed knife 2, a linear moving part 3, a movable knife 4 and an elastic extrusion 5; the fixed knife 2 is arranged on the base 1; the linear mover 3 has a moving end capable of moving in a direction approaching or separating from the fixed knife 2; the movable knife 4 is arranged at the moving end of the linear moving piece 3, the side surface of the movable knife 4 is integrally connected with the extending plate 41, the side surface of the extending plate 41 is coplanar with the side surface of the movable knife 4, the upper surface of the extending plate 41 is propped against the lower surface of the fixed knife 2, and when the moving end moves towards the fixed knife 2, the movable knife 4 is tangential to the fixed knife 2; the elastic extrusion 5 is mounted on the base 1, the elastic extrusion 5 extends out of the plate 41 to abut, and the elastic extrusion 5 can generate extrusion force towards the fixed knife 2 on the extending plate 41, so that when the elastic extrusion 5 abuts against the extending plate 41, the extending plate 41 and the fixed knife 2 are kept abutting.
The base 1 is platy, and opening 11 has been seted up to base 1, forms the position of cutting between fixed knife 2 and the movable knife 4, and opening 11 is just right with the position of cutting to the position of cutting for the peeling membrane product gets into the position of cutting between fixed knife 2 and the movable knife 4 from opening 11, and then is convenient for drive movable knife 4 and fixed knife 2 tangent through linear movement piece 3, thereby cuts the film.
The linear moving part 3 comprises a moving frame 31 (namely a moving end), a driving part 32, a guiding part 33 and a transmission rod 34, wherein the moving frame 31 is in sliding fit with the base 1, the moving frame 31 can linearly move on the base 1 towards a direction close to or far away from the fixed knife 2, the movable knife 4 is arranged on the moving frame 31, the driving part 32 is arranged on a corresponding frame body and keeps a relatively fixed state with the base 1 by adopting a servo motor, a direct current motor, a stepping motor or a motor, the driving part 32 is connected to the driving end of the driving part 32 and can be driven to rotate by the driving part 32, the guiding part 33 adopts an eccentric wheel, the eccentric wheel and the driving end of the driving part 32 coaxially rotate, one end of the transmission rod 34 is hinged with the side face of the eccentric wheel, a hinging point between the transmission rod 34 and the eccentric wheel has a distance from the center of the circle, and the other end of the transmission rod 34 is hinged with the side face of the moving frame 31. Thus, the crank block structure is formed by the moving frame 31, the driving member 32, the guide member 33 and the transmission rod 34, so that the function of linearly moving the moving end (the moving frame 31) of the linear moving member 3 under the driving action of the driving member 32 is realized.
In order to realize the sliding fit of the moving frame 31 and the base 1, the base 1 is provided with a slide rail 12, the length direction of the slide rail 12 is parallel to the moving direction of the moving end of the linear moving member 3, the moving frame 31 is provided with a slide block 311, and the slide block 311 is in sliding fit with the slide rail 12.
In order to improve the stability of the extending plates 41 abutting against the fixed knife 2, the number of the extending plates 41 is two, the two extending plates 41 are distributed at two ends of the length direction of the movable knife 4, the two extending plates 41 respectively correspond to the two ends of the length direction of the fixed knife 2, and the upper surfaces of the two extending plates 41 of the movable knife 4 respectively abut against the lower surfaces of the two ends of the fixed knife 2.
The number of the elastic pressing members 5 is two, and the two elastic pressing members 5 are distributed at two ends of the fixed knife 2 in the length direction and respectively used for pressing the corresponding two extending plates 41. The elastic pressing member 5 includes a spring 51, a movable frame 52, and a pressing roller 53; one end of the spring 51 is arranged on the base 1, the movable frame 52 is L-shaped, one end of the movable frame 52 is hinged with the base 1, the other end of the movable frame 52 is connected with the end of the spring 51 away from the base 1, the L-shaped opening 11 of the movable frame 52 faces the spring 51, the corner of the movable frame 52 is integrally connected with a pressing block 521, the pressing block 521 faces the fixed knife 2 and is close to the extending plate 41, the pressing roller 53 is rotatably arranged on the side face of the pressing block 521, and under the action of the elasticity of the spring 51, the pressing block 521 of the movable frame 52 abuts against the extending plate 41 through the wheel face of the pressing roller 53, so that the extending plate 41 abuts against the side face of the fixed knife 2. Therefore, by arranging the L-shaped movable frame 52, under the action of the elasticity of the spring 51, the movable frame 52 turns towards the direction away from the spring 51 about the hinge point between the movable frame and the base 1, and drives the pressing roller 53 to abut against the extending plate 41, so that the extending plate 41 abuts against the side surface of the fixed knife 2, and the function of reducing the gap between the fixed knife 2 and the movable knife 4 is realized.
It will be appreciated that by pressing the projecting plate 41 toward the fixed blade 2 by the pressing block 521 of the movable frame 52, the upper surface of the projecting plate 41 can be made to abut against the lower surface of the fixed blade 2, and since the upper surface of the projecting plate 41 is coplanar with the upper surface of the movable blade 4, the function of the gap between the fixed blade 2 and the movable blade 4 can be reduced.
Similarly, the movable frame 52 may be hinged to the base 1, and the spring 51 may have one end mounted to the base 1 and the other end abutting against one side of the movable frame 52, so that the movable frame 52 may abut against the other side of the extension plate 41 by the elastic force of the spring 51. Since the upper surface of the protruding plate 41 is coplanar with the upper surface of the movable blade 4, the function of the gap between the fixed blade 2 and the movable blade 4 can be reduced.
In summary, according to the present utility model, the extension plate 41 is disposed on the movable blade 4, and the side surface of the extension plate 41 is coplanar with the side surface of the movable blade 4, so that the extension plate 41 is abutted against the fixed blade 2, and meanwhile, the elastic extrusion piece 5 is disposed, and the extrusion end of the elastic extrusion piece 5 is used to extrude the extension plate 41, so that the extension plate 41 and the fixed blade 2 are always kept in an abutted state, and a gap between the fixed blade 2 and the movable blade 4 is reduced, so that when the movable blade 4 is driven by the linear moving member 3 to be tangent to the fixed blade 2, the effectiveness of cutting films between the movable blade 4 and the fixed blade 2 can be improved, the continuous phenomenon of cutting films can be avoided, and the service life of the film cutting device can be prolonged.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (9)
1. A film cutting device, comprising:
A base;
A stationary blade mounted on the base;
A linear moving member provided with a moving end capable of moving in a direction approaching or separating from the fixed knife;
The movable knife is arranged on the movable end and is provided with an extending plate, the extending plate is propped against the fixed knife, and when the movable end moves towards the fixed knife, the cutting edge of the movable knife is tangential to the cutting edge of the fixed knife;
And the elastic extrusion piece is arranged on the base, the elastic extrusion piece is propped against the extending plate, and the extrusion force of the elastic extrusion piece faces the fixed knife so as to keep the extending plate and the fixed knife in a propped state.
2. The film cutting device according to claim 1, wherein the elastic pressing member comprises a spring and a movable frame, the movable frame is hinged on the base, one end of the spring is mounted on the base, the other end of the spring abuts against one side of the movable frame, and the movable frame can abut against the other side of the protruding plate under the action of the elastic force of the spring.
3. The film cutting device according to claim 2, wherein the movable frame is L-shaped, one end of the movable frame is hinged to the base, the other end of the movable frame is connected to the end of the spring away from the base, and a pressing block is provided at a corner of the movable frame, and the pressing block abuts against the extending plate toward the fixed knife direction by the elastic force of the spring and presses the extending plate.
4. A film cutting device according to claim 3, wherein the elastic pressing member further comprises a pressing roller rotatably connected to the pressing block, the pressing block being abutted against the projecting plate through a tread of the pressing roller.
5. The film cutting device according to any one of claims 1-4, wherein the linear moving member comprises a moving frame, a driving member, a guiding member and a transmission rod, the moving frame is the moving end, the moving frame is in sliding fit with the base, the movable knife is installed on the moving frame, the driving member is relatively fixed with the base, the driving end of the driving member is connected with the guiding member, one end of the transmission rod is hinged with a position, away from the driving member, of the guiding member, the other end of the transmission rod is hinged with the moving frame, and the driving member, the guiding member, the transmission rod and the moving frame form a crank slider structure to drive the moving frame to linearly move.
6. The film cutting device according to claim 5, wherein the guide member is an eccentric wheel, the eccentric wheel rotates coaxially with the driving end of the driving member, and one end of the transmission rod is hinged with the side surface of the eccentric wheel.
7. The film cutting device according to claim 5, wherein the base is provided with a slide rail, a length direction of the slide rail is parallel to a moving direction of the moving frame, the moving frame is provided with a slider, and the slider is in sliding fit with the slide rail.
8. The film cutting device according to any one of claims 1 to 4, wherein the number of the protruding plates is two, the two protruding plates are distributed at both ends in the length direction of the movable blade, and the two protruding plates correspond to both ends in the length direction of the fixed blade, respectively.
9. The film cutting device according to any one of claims 1 to 4, wherein a cutting position is formed between the fixed blade and the movable blade, and the base is provided with an opening facing the cutting position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323012068.5U CN220972488U (en) | 2023-11-07 | 2023-11-07 | Film cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323012068.5U CN220972488U (en) | 2023-11-07 | 2023-11-07 | Film cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220972488U true CN220972488U (en) | 2024-05-17 |
Family
ID=91058046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323012068.5U Active CN220972488U (en) | 2023-11-07 | 2023-11-07 | Film cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220972488U (en) |
-
2023
- 2023-11-07 CN CN202323012068.5U patent/CN220972488U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |