CN110549408B - BOPP film cutting method - Google Patents
BOPP film cutting method Download PDFInfo
- Publication number
- CN110549408B CN110549408B CN201810565469.8A CN201810565469A CN110549408B CN 110549408 B CN110549408 B CN 110549408B CN 201810565469 A CN201810565469 A CN 201810565469A CN 110549408 B CN110549408 B CN 110549408B
- Authority
- CN
- China
- Prior art keywords
- cutting
- circular
- film
- blades
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/22—Safety devices specially adapted for cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
- B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
-
- 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
Abstract
A BOPP film cutting method is characterized in that a cutting device with a plurality of parallel circular knives is adopted to simultaneously and continuously cut a film along the advancing direction of a film production line; the width of the cut film is adjusted by adjusting the interval between the adjacent circular knives. The device adopts a new idea to solve the problem of cutting and wrinkling of BOPP films with multiple widths, and has better effect.
Description
Technical Field
The technical scheme belongs to the film material processing technology, in particular to a BOPP film cutting method.
Background
In the prior art, some thin film cutting operations in mass production are to stack a plurality of BOPP thin films together, and then use a plate-shaped cutter to match with a stepping motor of a thin film driving roller for cutting for a plurality of times. It is difficult to cut films of different widths continuously on the same film. Because the BOPP film material is soft in texture, and the cutting edge gradually thickens from the cutting edge to the back direction, when the cutter is used for cutting the film material, one side or two sides of the cut are often pushed away to form wrinkles, and the adverse effect caused by the situation when the cut films are stacked is larger. Particularly, when the film with variable width is cut, the film with multiple widths needs to be cut at the same time, and the influence of wrinkles is larger.
Disclosure of Invention
The invention provides a new idea for solving the problems, and the method specifically comprises the following steps:
a BOPP film cutting method is characterized in that a cutting device with a plurality of parallel circular knives is adopted to simultaneously and continuously cut a film along the advancing direction of a film production line; the width of the cut film is adjusted by adjusting the interval between the adjacent circular knives;
the film cutting device is structurally characterized by comprising a portal frame, a sliding rail and a plurality of cutting knives, wherein the planes of the cutting edges of the cutting knives are parallel to each other;
for one cutter: the cutter is connected to a cutter rest; the head end and the tail end of the tool rest are respectively connected with a sliding rail through sliding blocks, the two sliding rails form a group of sliding rails, and the heights of the two sliding rails are the same; the sliding rail is perpendicular to the plane where the cutting edge of the cutter is positioned; the two sliding rails are connected to the portal frame; a plurality of continuous concave grooves are arranged in the sliding rail along the length direction, the distances between adjacent concave grooves are the same, a counter bore is formed in the sliding block, a pressure spring is arranged in the counter bore, steel balls are connected to the pressure spring, and spherical crowns of the steel balls correspond to the shape of inner cavities of the concave grooves; the steel balls linearly move along with the sliding blocks, and under the jacking action of the pressure springs, spherical crown parts of the steel balls enter and exit from the concave parts; the tool rest is connected to the portal frame through an electric push rod; the axis of the electric push rod is parallel to the slide rail;
the cutter comprises blades, wherein the blades are round blades, and the number of the round blades is the same as that of the round blades; the difference of the diameters of the front surface and the back surface of each circular knife is larger than 0, and the surface with the larger diameter of the circular knife is set to be the a surface; the two circular cutters are connected to the same rotating shaft through a key structure, and the a surfaces are opposite; the tool rest is in a shape of a door, two sides of the rotating shaft are respectively connected to bearings at the lower parts of two vertical rods of the tool rest, and two circular cutters are arranged between the two vertical rods; the bottom ends of the two vertical rods are respectively connected with a pressing strip through an elastic body; the front section and the rear section of the pressing strip are upwarped, and the warped part and the middle section are in arc smooth transition;
the heights of the sliding rails corresponding to the cutting knives are gradually increased, and the heights of the bottom ends of the cutting edges of the cutting knives are the same; the bases of the electric push rods corresponding to the cutting knives are connected to the portal frame through the same base.
Further, the circular cutters are detachably connected with the rotating shaft, a shaft sleeve is detachably sleeved on a part of the rotating shaft between the two circular cutters, a shaft sleeve is detachably sleeved on a part of the rotating shaft between each circular cutter and the bearing, and the sum of the lengths of the three shaft sleeves and the thickness of the two circular cutters is a fixed value.
Further, for a vertical rod, the elastic body is two pressure springs, and the two pressure springs are respectively and detachably connected to the front end and the rear end of the middle section of the pressure strip along the bottom end of the pressure strip; the top ends of the two pressure springs are connected to the bottom ends of the vertical rods through connecting plates; the distance between one side edge of the pressing strip and the a surface of the corresponding circular knife is approximately 0; the batten has a plurality of pairs which are in series according to the size of the width dimension.
At least two counter bores are arranged on the sliding block, and the distance between adjacent counter bores is an integral multiple of the distance between adjacent concave holes.
The principle of the device is that a plurality of electric push rods are adopted to respectively push a plurality of cutting knives, and then the distance between adjacent cutting knives is adjusted, so that the cutting distance with multiple widths is adjustable. Because of the fit clearance of the Zhou Xiang- (I-) linear motion conversion mechanism in the push rod, hidden danger of inaccurate cutter position or inaccurate slide block/slide rail position can be brought. Therefore, a limiting mechanism is designed between the sliding rail and the sliding block, and risks brought by the hidden danger are reduced. In order to further avoid risks, at least two counter bores are arranged on the sliding block, and the distance between adjacent counter bores is an integral multiple of the distance between adjacent concave grooves, so that the position stability of the sliding block is ensured.
By means of the structure that the interval is arranged between the two circular blade openings and the surface a is a plane, when rolling and cutting are carried out, the cut films are in a narrow strip shape, so that wrinkles in the cutting structure are all formed in the strip-shaped part, and the strip-shaped part is discarded, and the films on the two sides can be ensured to be flat.
The structure forms of the shaft sleeve, the circular knife, the shaft sleeve, the circular knife and the shaft sleeve are adopted, so that the device can be suitable for narrow strip widths required by various film products. One side of the pressing strip is almost jointed with the a face of the circular knife, so that the flatness of the useful film is ensured, and the serial pressing strips can be matched with the width of the structural form to be matched and changed. The upturned part of the pressing strip is convenient for pressing the film.
The device adopts a new idea to solve the problem of cutting and wrinkling of BOPP films with multiple widths, and has better effect.
Drawings
FIG. 1 is a schematic view of the present cutting apparatus, the advancing direction of the film being the direction perpendicular to the paper surface;
FIG. 2 is a schematic view of the connection of the slide rail and the slider;
FIG. 3 is a schematic view of a cutter;
FIG. 4 is a schematic side view of FIG. 3;
in the figure: portal frame 1, slide rail 2, cut-off knife 3, knife rest 4, slider 5, electric putter 6, pneumatic cylinder 7, indent 8, counter bore 9, pressure spring 10 on the slider, steel ball 11, circle sword 12, a face 13, montant 14, layering 15, axle sleeve 16, pressure spring 17 on the knife rest, connecting plate 18.
Detailed Description
The device is further described below with reference to the drawings and the detailed description:
referring to fig. 1 and 2, a BOPP film cutting method is characterized in that a cutting device with a plurality of parallel circular knives is used for simultaneously and continuously cutting a film along the advancing direction of a film production line; the width of the cut film is adjusted by adjusting the interval between the adjacent circular knives;
the film cutting device is structurally characterized by comprising a portal frame, a sliding rail and a plurality of cutting knives, wherein the planes of the cutting edges of the cutting knives are parallel to each other;
for one cutter: the cutter is connected to a cutter rest; the head end and the tail end of the tool rest are respectively connected with a sliding rail through sliding blocks, the two sliding rails form a group of sliding rails, and the heights of the two sliding rails are the same; the sliding rail is perpendicular to the plane where the cutting edge of the cutter is positioned; the two sliding rails are connected to the portal frame; a plurality of continuous concave grooves are arranged in the sliding rail along the length direction, the distances between adjacent concave grooves are the same, a counter bore is formed in the sliding block, a pressure spring is arranged in the counter bore, steel balls are connected to the pressure spring, and spherical crowns of the steel balls correspond to the shape of inner cavities of the concave grooves; the steel balls linearly move along with the sliding blocks, and under the jacking action of the pressure springs, spherical crown parts of the steel balls enter and exit from the concave parts; the tool rest is connected to the portal frame through an electric push rod; the axis of the electric push rod is parallel to the slide rail;
as shown in fig. 3 and 4, the cutter comprises blades, the blades are circular cutters, and the circular cutters are the same two; the difference of the diameters of the front surface and the back surface of each circular knife is larger than 0, and the surface with the larger diameter of the circular knife is set to be the a surface; the two circular cutters are connected to the same rotating shaft through a key structure, and the a surfaces are opposite; the tool rest is in a shape of a door, two sides of the rotating shaft are respectively connected to bearings at the lower parts of two vertical rods of the tool rest, and two circular cutters are arranged between the two vertical rods; the bottom ends of the two vertical rods are respectively connected with a pressing strip through an elastic body; the front section and the rear section of the pressing strip are upwarped, and the warped part and the middle section are in arc smooth transition;
the heights of the sliding rails corresponding to the cutting knives are gradually increased, and the heights of the bottom ends of the cutting edges of the cutting knives are the same; the bases of the electric push rods corresponding to the cutting knives are connected to the portal frame through the same base.
The circular cutters are detachably connected with the rotating shaft, shaft sleeves are detachably sleeved on part of the rotating shaft between the two circular cutters, shaft sleeves are detachably sleeved on part of the rotating shaft between each circular cutter and the bearing, and the sum of the lengths of the three shaft sleeves and the thickness of the two circular cutters is a fixed value.
For one vertical rod, the elastic body is two pressure springs, and the two pressure springs are respectively and detachably connected to the front end and the rear end of the middle section of the pressing strip along the bottom end of the pressing strip; the top ends of the two pressure springs are connected to the bottom ends of the vertical rods through connecting plates; the distance between one side edge of the pressing strip and the a surface of the corresponding circular knife is approximately 0; the batten has a plurality of pairs which are in series according to the size of the width dimension. The pressing strips are provided with a plurality of pairs which are in series according to the width dimension for disassembly and replacement.
At least two counter bores are arranged on the sliding block, and the distance between adjacent counter bores is an integral multiple of the distance between adjacent concave holes.
In this example, the portal frame is connected with a hydraulic lifting mechanism; the hydraulic lifting mechanism comprises 4 groups of hydraulic cylinders, and a hydraulic oil inlet and an oil return port of the 4 groups of hydraulic cylinders are respectively connected with the same oil supply pipeline and the same oil return pipeline; the 4 sets of hydraulic cylinders are respectively connected at the 4 angle positions of the portal frame. Further improving the operation effect of the pressing bar and the circular knife.
Claims (4)
1. A BOPP film cutting method is characterized in that a cutting device with a plurality of parallel circular knives is adopted to simultaneously and continuously cut a film along the advancing direction of a film production line; the width of the cut film is adjusted by adjusting the interval between the adjacent circular knives;
the film cutting device is structurally characterized by comprising a portal frame, a sliding rail and a plurality of cutting knives, wherein the planes of the cutting edges of the cutting knives are parallel to each other;
for one cutter: the cutter is connected to a cutter rest; the head end and the tail end of the tool rest are respectively connected with a sliding rail through sliding blocks, the two sliding rails form a group of sliding rails, and the heights of the two sliding rails are the same; the sliding rail is perpendicular to the plane where the cutting edge of the cutter is positioned; the two sliding rails are connected to the portal frame; a plurality of continuous concave grooves are arranged in the sliding rail along the length direction, the distances between adjacent concave grooves are the same, a counter bore is formed in the sliding block, a pressure spring is arranged in the counter bore, steel balls are connected to the pressure spring, and spherical crowns of the steel balls correspond to the shape of inner cavities of the concave grooves; the steel balls linearly move along with the sliding blocks, and under the jacking action of the pressure springs, spherical crown parts of the steel balls enter and exit from the concave parts; the tool rest is connected to the portal frame through an electric push rod; the axis of the electric push rod is parallel to the slide rail;
the cutter comprises blades, wherein the blades are round blades, and the number of the round blades is the same as that of the round blades; the difference of the diameters of the front surface and the back surface of each circular knife is larger than 0, and the surface with the larger diameter of the circular knife is set to be the a surface; the two circular cutters are connected to the same rotating shaft through a key structure, and the a surfaces are opposite; the tool rest is in a shape of a door, two sides of the rotating shaft are respectively connected to bearings at the lower parts of two vertical rods of the tool rest, and two circular cutters are arranged between the two vertical rods; the bottom ends of the two vertical rods are respectively connected with a pressing strip through an elastic body; the front section and the rear section of the pressing strip are upwarped, and the warped part and the middle section are in arc smooth transition;
the heights of the sliding rails corresponding to the cutting knives are gradually increased, and the heights of the bottom ends of the cutting edges of the cutting knives are the same; the bases of the electric push rods corresponding to the cutting knives are connected to the portal frame through the same base.
2. The cutting method according to claim 1, wherein the circular blades are detachably connected with the rotary shaft, a shaft sleeve is detachably sleeved on a part of the rotary shaft between the two circular blades, a shaft sleeve is detachably sleeved on a part of the rotary shaft between each circular blade and the bearing, and the sum of the lengths of the three shaft sleeves and the thicknesses of the two circular blades is a fixed value.
3. The cutting method according to claim 1, wherein for a vertical rod, the elastic body is two compression springs, and the two compression springs are detachably connected to the front and rear ends of the middle section of the compression bar along the bottom end of the compression bar respectively; the top ends of the two pressure springs are connected to the bottom ends of the vertical rods through connecting plates; the distance between one side edge of the pressing strip and the a surface of the corresponding circular knife is approximately 0; the batten has a plurality of pairs which are in series according to the size of the width dimension.
4. The method of claim 1, wherein there are at least two counterbores on the slider, the spacing between adjacent counterbores being an integer multiple of the spacing between adjacent recesses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565469.8A CN110549408B (en) | 2018-06-04 | 2018-06-04 | BOPP film cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810565469.8A CN110549408B (en) | 2018-06-04 | 2018-06-04 | BOPP film cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110549408A CN110549408A (en) | 2019-12-10 |
| CN110549408B true CN110549408B (en) | 2023-06-02 |
Family
ID=68736064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810565469.8A Active CN110549408B (en) | 2018-06-04 | 2018-06-04 | BOPP film cutting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110549408B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114434515B (en) * | 2022-04-11 | 2022-07-01 | 美氟新材料科技(常州)有限公司 | From type membrane crease-resistance system device of rolling up that cuts |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899630A (en) * | 1988-06-06 | 1990-02-13 | Efuesukei Kabushiki Kaisha | Sheet slitting apparatus |
| CN201483567U (en) * | 2009-09-14 | 2010-05-26 | 肇庆俊富纤网材料有限公司 | Cutting device capable of adjusting positions of cutting knife |
| CN103862510A (en) * | 2014-02-24 | 2014-06-18 | 东莞市塘厦肇颖机械五金厂 | Multifunctional slitting and slicing machine |
| CN204280847U (en) * | 2014-11-05 | 2015-04-22 | 重庆鸿岱科技有限公司 | Compound traction forming machine with trimming cutter sweep |
| JP2015123565A (en) * | 2013-12-27 | 2015-07-06 | 長野日本無線株式会社 | Paper sheet cutting apparatus |
| CN204604440U (en) * | 2015-05-19 | 2015-09-02 | 浙江邦泰机械有限公司 | Cutting machine |
| CN204712157U (en) * | 2015-06-17 | 2015-10-21 | 山东光华纸业集团有限公司 | A kind of copy paper rewinding machine slitting device |
-
2018
- 2018-06-04 CN CN201810565469.8A patent/CN110549408B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899630A (en) * | 1988-06-06 | 1990-02-13 | Efuesukei Kabushiki Kaisha | Sheet slitting apparatus |
| CN201483567U (en) * | 2009-09-14 | 2010-05-26 | 肇庆俊富纤网材料有限公司 | Cutting device capable of adjusting positions of cutting knife |
| JP2015123565A (en) * | 2013-12-27 | 2015-07-06 | 長野日本無線株式会社 | Paper sheet cutting apparatus |
| CN103862510A (en) * | 2014-02-24 | 2014-06-18 | 东莞市塘厦肇颖机械五金厂 | Multifunctional slitting and slicing machine |
| CN204280847U (en) * | 2014-11-05 | 2015-04-22 | 重庆鸿岱科技有限公司 | Compound traction forming machine with trimming cutter sweep |
| CN204604440U (en) * | 2015-05-19 | 2015-09-02 | 浙江邦泰机械有限公司 | Cutting machine |
| CN204712157U (en) * | 2015-06-17 | 2015-10-21 | 山东光华纸业集团有限公司 | A kind of copy paper rewinding machine slitting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110549408A (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211053860U (en) | Cutting device for honeycomb paperboard production line | |
| CN103224160A (en) | Cutting machine | |
| CN110549408B (en) | BOPP film cutting method | |
| CN105947767A (en) | Laser slitter used for film | |
| CN107142710B (en) | Automatic opposite side system of slitting machine | |
| CN204976837U (en) | Facial mask cross cutting device | |
| CN111496959A (en) | Multifunctional numerical control rough milling machine | |
| CN204382335U (en) | A kind of shut-off mechanism of diagnose test paper | |
| CN103112026A (en) | Light-absorbing-piece cutting machine | |
| CN108393525B (en) | Fin cutting device of plate-fin heat exchanger | |
| CN108582174B (en) | Paper cutting device | |
| CN113059862B (en) | Release paper embossing device for water-based leather production and working method thereof | |
| CN214443436U (en) | Electric steel belt shearing machine with adjustable interval | |
| CN208454085U (en) | The film cutting means that several width are adjusted | |
| CN213320275U (en) | Many specifications traditional chinese medicine section equipment | |
| CN108858421B (en) | Sheet splitting machine and application method thereof | |
| CN211438349U (en) | Wide steel strip material slitting treatment device for steel heald warp stop sheet | |
| CN103817726A (en) | Integral device for cutting and embossing paper tube | |
| CN214079495U (en) | Equidistance cutting device is used in cutting | |
| CN106623592A (en) | Lithium battery die-cutting machine punching die | |
| CN207223468U (en) | One kind cuts bent axle locating slot frock | |
| CN218947053U (en) | Discharging and conveying mechanism of plate shearing machine | |
| CN219054497U (en) | Cutting assembly of cutting machine for producing glitter paper | |
| CN104369209A (en) | Sponge flat cutting device | |
| CN219402579U (en) | Shearing mechanism for steel belt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |