CN117047954B - Casting film production molding assembly line capable of preventing dust pollution and process thereof - Google Patents
Casting film production molding assembly line capable of preventing dust pollution and process thereof Download PDFInfo
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- CN117047954B CN117047954B CN202311306767.2A CN202311306767A CN117047954B CN 117047954 B CN117047954 B CN 117047954B CN 202311306767 A CN202311306767 A CN 202311306767A CN 117047954 B CN117047954 B CN 117047954B
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- forming roller
- casting film
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- 239000000428 dust Substances 0.000 title claims abstract description 85
- 238000005266 casting Methods 0.000 title claims abstract description 83
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000000465 moulding Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims abstract description 15
- 238000001179 sorption measurement Methods 0.000 claims description 47
- 238000007790 scraping Methods 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 19
- 238000010521 absorption reaction Methods 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims 1
- 210000002469 basement membrane Anatomy 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/30—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
- B08B5/043—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/36—Feeding the material on to the mould, core or other substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a casting film production molding assembly line capable of preventing dust pollution and a process thereof, comprising a bottom film roll, a tensioning mechanism, a first molding roller, a second molding roller, a molding limiting assembly, a casting film head, a dust removing mechanism and a winding roller, wherein the bottom film is wound on the bottom film roll, and sequentially passes through the tensioning mechanism, the first molding roller, the second molding roller and the dust removing mechanism and then is wound in the winding roller.
Description
Technical Field
The invention relates to the field of casting film production lines, in particular to a casting film production molding line capable of preventing dust pollution and a process thereof.
Background
The casting film is a common plastic film preparation method, mainly produced by continuous stretching and cooling processes, generally needs raw material preparation, melting and fusion, extrusion, stretching, cooling and rolling, and in order to ensure the production quality of the casting film, the existing casting film production line is generally provided with dust-proof equipment and an electrostatic dust-removing chamber around the production line to reduce dust pollution of the casting film, but still some dust attached to the surface of a human body and clothes folds cannot be removed, and the dust can be adsorbed or falls on the surface of the casting film again when the casting film is produced and formed, so that the production and forming results and yield of the casting film are affected.
Disclosure of Invention
The invention provides a casting film production molding assembly line capable of preventing dust pollution and a process thereof, which overcome the defects described in the background art.
The technical scheme adopted for solving the technical problems is as follows:
the casting film production molding assembly line comprises a bottom film roll, a tensioning mechanism, a first molding roller, a second molding roller, a molding limiting assembly, a casting film head, a dust removing mechanism and a winding roller, wherein the bottom film is wound on the bottom film roll, the bottom film sequentially passes through the tensioning mechanism, the first molding roller, the second molding roller and the dust removing mechanism and then is wound in the winding roller, raw materials are filled in the casting film head, and when the raw materials are discharged to the surface of the first molding roller, the casting film is formed by extrusion of the first molding roller and the second molding roller and is adhered to the surface of the bottom film to form a finished film;
the width of the casting film is shorter than the width of the bottom film;
the forming limiting assembly is arranged between the first forming roller and the second forming roller, the forming limiting assembly is arranged above the second forming roller and the first forming roller, the tensioning mechanism is arranged between the first forming roller and the bottom film roll, and the lower end horizontal planes of the tensioning mechanism are lower than the lower end horizontal planes of the first forming roller and the bottom film roll;
the tensioning mechanism comprises a pneumatic telescopic rod, a fixing frame and a tensioning roller, wherein the fixing frame is arranged on an output shaft of the pneumatic telescopic rod, the tensioning roller is rotatably arranged at the lower part of the fixing frame, the scraping and absorbing piece is propped against the upper end of the tensioning roller, and the fixing frame is respectively connected with two ends of the scraping and absorbing piece through two torsion shafts;
the left and right parts of the scraping and adsorbing piece are respectively provided with a first adsorption cavity and a second adsorption cavity, and the first adsorption cavity and the second adsorption cavity are connected with an air pump through a communication pipe to manufacture negative pressure.
A preferred technical scheme is as follows: the second adsorption cavity and the second adsorption cavity are of included angle structures, the large-caliber ends of the second adsorption cavity and the second adsorption cavity are communicated with the communicating pipe, and the small-caliber ends of the first adsorption cavity and the second adsorption cavity are respectively extended to the tail end edges of the left side and the right side of the lower part of the scraping adsorption piece.
A preferred technical scheme is as follows: the forming limiting assembly comprises limiting plates, connecting rods and fixing pieces, wherein the limiting plates are symmetrically arranged on the front side and the rear side below the casting film head, the limiting plates are respectively abutted against the surfaces of the second forming roller and the first forming roller, the two limiting plates are connected through the connecting rods, and the two limiting plates are respectively fixed through the fixing pieces;
the distance between the two limiting plates is smaller than the length of the first forming roller and smaller than the length of the output end of the casting film head.
A preferred technical scheme is as follows: the dust removing mechanism comprises a shell, a negative pressure dust collector, balance abutting rollers and a vibrator, wherein the negative pressure dust collector is arranged in the shell, the negative pressure dust collector is positioned above the vibrator, a flow channel for air to flow is arranged between the negative pressure dust collector and the vibrator, the finished film passes through the flow channel, the balance abutting rollers are symmetrically arranged on two sides of the inner end of the shell, and all the balance abutting rollers are arranged towards the finished film;
the balance abutting rollers at two sides are abutted against the left and right sides of the upper end of the finished film, and the vibrator is abutted against the lower end surface of the finished film.
A preferred technical scheme is as follows: the surface of the finished film, which is abutted against the vibrator, is in an upward bulge shape, the width of the vibrator is longer than that of the casting film, the balance abutting rollers at two sides are respectively abutted against the surface of the bottom film, and the balance abutting rollers do not extend to the casting film.
A preferred technical scheme is as follows: the surface of the balance abutting roller, which is close to one end of the finished film, is equidistantly provided with a plurality of limiting protrusions, the surface of the bottom film is provided with corresponding positioning strips, and when the balance abutting roller abuts against the surface of the bottom film, the limiting protrusions are embedded into the positioning strips to form limiting.
A preferred technical scheme is as follows: an electrostatic adsorption rod is further arranged between the first forming roller and the tensioning mechanism, the electrostatic adsorption rod is arranged close to the bottom film, and dust on the surface of the bottom film is manufactured by the electrostatic adsorption rod through an external power supply.
The casting film production process comprises the casting film production molding assembly line capable of preventing dust pollution, and comprises the following specific steps of:
s1: taking out the bottom film from the bottom film roll, and winding the bottom film on the surface of the winding roller after sequentially passing through the tensioning mechanism, the electrostatic adsorption rod, the first forming roller, the second forming roller and the dust removing mechanism;
s2: the bottom film is stretched by extending the length of the pneumatic telescopic rod, larger dust and particles on the surface of the bottom film are scraped by the scraping and absorbing component, the dust and the particles are absorbed by the first absorbing cavity and the second absorbing cavity, and then the dust is absorbed by the electrostatic absorbing rod;
s3: uniformly casting the raw material to the surface of the base film by using a casting film head, extruding the raw material by using a first forming roller and a second forming roller to form a casting film, limiting the flowing width of the raw material by using a forming limiting assembly in the forming process, so that the width of the formed casting film is smaller than that of the base film, and finally forming a finished film;
s4: when the finished film passes through the dust removing mechanism, the dust removing mechanism passes through the upper part of the vibrator, and is embedded into the positioning strip by utilizing the limit protrusions on the surface of the balance abutting roller, so that the limit and the guide of the finished film are formed, then the vibrator is used for forming high-speed vibration, dust on the surface of the finished film shakes off, and finally the shaked-off dust is adsorbed by the negative pressure dust collector.
Compared with the background technology, the technical proposal has the following advantages:
in the invention, the casting film head raw material is discharged to the surface of the first forming roller, and the casting film is formed by extrusion of the first forming roller and the second forming roller and is adhered to the surface of the bottom film to form a finished film, so that the width of the casting film is set to be shorter than the width of the bottom film for protecting the casting film, and the edge of the bottom film protruding out of the casting film is used for protecting the casting film.
In the invention, the scraping and adsorbing piece is continuously propped against the surface of the tensioning roller through the torsion force formed by the torsion spring in the torsion shaft, when the tensioning roller rotates clockwise and drives the bottom film to move, the inner side surface of the bottom film is propped against the surface of the tensioning roller, the outer side surface of the bottom film is propped against the scraping and adsorbing piece, when the scraping and adsorbing piece is propped against the surface of the bottom film and the bottom film moves towards the scraping and adsorbing piece, the scraping and adsorbing piece can scrape larger particles or dust attached to the surface of the bottom film, further, the left and right parts of the scraping and adsorbing piece are respectively provided with a first adsorbing cavity and a second adsorbing cavity, the first adsorbing cavity and the second adsorbing cavity are respectively provided with negative pressure by an air pump connected with a communicating pipe, and then the air flow drives the scraped dust to be adsorbed by the first adsorbing cavity and the second adsorbing cavity through the air pump connected with the communicating pipe, so that the cleanliness of the outer side surface of the bottom film is improved.
And, second absorption chamber and second absorption chamber are contained angle column structure, and second absorption chamber, the one end that both bore are big of second absorption chamber, second absorption chamber all are linked together with communicating pipe to the one end of both small-bore of first absorption chamber, second absorption chamber extends to the lower part left and right sides terminal edge of striking off the absorption piece respectively, so set up in order to enlarge the atmospheric pressure of the one end that first absorption chamber and second absorption chamber kept away from communicating pipe, increase the adsorptivity to the dust.
When the finished film passes through the dust removing mechanism, the vibrator can be abutted against the bottom surface of the finished film, the finished film is jacked up, the finished film is fully abutted against the upper surface of the vibrator, the vibrator forms high-speed vibration to drive the finished film attached to the surface of the finished film to vibrate, dust attached to the surface of the casting film is vibrated and floats in the air, and the dust is adsorbed by the negative pressure dust collector, so that the finished film is prevented from being polluted by the dust.
In addition, the invention can form the limit of the finished film through the balance abutting rollers arranged at the left side and the right side of the finished film, and avoid the deviation of the finished film when the vibrator vibrates at high speed, so the surface of the balance abutting roller, which is close to one end of the finished film, is equidistantly provided with a plurality of limit protrusions, the surface of the bottom film is provided with corresponding positioning strips, and when the balance abutting rollers are used for abutting against the surface of the bottom film, the limit protrusions are embedded into the positioning strips to form limit.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the tensioning mechanism 2.
Fig. 3 is a schematic exploded view of the tensioning mechanism 2.
Fig. 4 is a schematic front view of fig. 3.
Fig. 5 is a schematic front view of the scraper absorbing member 24.
Fig. 6 is a schematic perspective view of the forming limit assembly 5.
Fig. 7 is a schematic view of the dust removing mechanism 7.
Fig. 8 is a schematic perspective view of the dust removing mechanism 7 and the finished film.
Fig. 9 is a side view of fig. 7.
Fig. 10 is a top view of the finished film.
In the figure: the film roll 1, the tensioning mechanism 2, the pneumatic telescopic rod 21, the fixing frame 22, the torsion shaft 221, the tensioning roller 23, the scraping absorbing piece 24, the first absorbing cavity 241, the second absorbing cavity 242, the communicating pipe 243, the first forming roller 3, the second forming roller 4, the forming limiting component 5, the limiting plate 51, the connecting rod 52, the fixing piece 53, the casting film head 6, the dust removing mechanism 7, the shell 71, the negative pressure dust collector 72, the balance abutting roller 73, the limiting boss 731, the vibrator 74, the winding roller 8, the electrostatic absorbing rod 9, the film base a, the positioning strip a1 and the casting film b.
Detailed Description
Example 1
As shown in fig. 1 to 10, in this embodiment, a casting film production molding line for preventing dust pollution is proposed, which comprises a base film roll 1, a tensioning mechanism 2, a first molding roller 3, a second molding roller 4, a molding limiting component 5, a casting film head 6, a dust removing mechanism 7 and a winding roller 8, wherein the base film a is wound on the base film roll 1, the base film a sequentially passes through the tensioning mechanism 2, the first molding roller 3, the second molding roller 4 and the dust removing mechanism 7 and then is wound in the winding roller 8, the casting film head 6 is filled with raw materials, when the raw materials are discharged to the surface of the first molding roller 3, and the casting film b is formed by extrusion of the first molding roller 3 and the second molding roller 4 and is attached to the surface of the base film a to form a finished film, in order to form protection of the casting film b, so that the width of the casting film b is set to be shorter than the width of the base film a, and the casting film b is protected by the edge of the base film a protruding from the casting film b;
further, the forming limit component 5 is disposed between the first forming roller 3 and the second forming roller 4, the forming limit component 5 is disposed above the second forming roller 4 and the first forming roller 3, the tensioning mechanism 2 is disposed between the first forming roller 3 and the film backing roll 1, the lower end level of the tensioning mechanism 2 is lower than the lower end levels of the first forming roller 3 and the film backing roll 1, the forming limit component is disposed so as to tighten the surface of the supported film backing a by the tensioning mechanism 2, the specific structure of the tensioning mechanism 2 is introduced below, the tensioning mechanism 2 includes a pneumatic telescopic rod 21, a fixing frame 22 and a tensioning roller 23, the fixing frame 22 is mounted on the output shaft of the pneumatic telescopic rod 21, the tensioning roller 23 is rotatably mounted on the lower portion of the fixing frame 22, the scraping suction attachment 24 is abutted to the upper end of the tensioning roller 23, the fixing frame 22 is respectively connected to the two ends of the scraping suction attachment 24 by two torsion shafts 221, the scraping attachment is disposed so as to continuously scrape the dust and particles adhered to the surface of the film backing 24 a by the torsion shaft 221, when the film backing 24 is continuously scraped off the suction attachment 24 a is further moved against the inner surface of the second suction attachment 24 a, the suction attachment 24 is disposed so as to continuously scrape the suction attachment 24 a, and the suction attachment is continuously moved against the inner surface of the suction attachment 24 a, the suction attachment 24 is disposed on the side of the suction attachment 24 a, when the suction attachment is continuously pulled against the suction attachment 24 is moved by the suction attachment 24, the first adsorption cavity 241 and the second adsorption cavity 242 are both connected with an air pump through a communication pipe 243 to manufacture negative pressure, and then the air pump is connected with the air pump through the communication pipe 243 to manufacture negative pressure at the first adsorption cavity 241 and the second adsorption cavity 242, so that the air flow drives the scraped dust to be adsorbed by the first adsorption cavity 241 and the second adsorption cavity 242, and the cleanliness of the outer side surface of the bottom film a is improved.
The second adsorption chamber 242 and the second adsorption chamber 242 are both in an angle structure, the large-caliber ends of the second adsorption chamber 242 and the second adsorption chamber 242 are both connected with the communicating pipe 243, and the small-caliber ends of the first adsorption chamber 241 and the second adsorption chamber 242 extend to the end edges of the left and right sides of the lower part of the scraping and adsorbing member 24, so that the air pressure of the ends of the first adsorption chamber 241 and the second adsorption chamber 242 away from the communicating pipe 243 is increased, and the dust adsorption property is increased.
And still be equipped with an electrostatic adsorption pole 9 between first forming roller 3 and the straining device 2, electrostatic adsorption pole 9 is close to basement membrane a setting to electrostatic adsorption pole 9 makes the dust on electrostatic adsorption basement membrane a surface through external power supply.
In order to form the casting film b, the forming limiting assembly 5 in the invention comprises limiting plates 51, connecting rods 52 and fixing pieces 53, wherein the limiting plates 51 are symmetrically arranged on the front side and the rear side below the casting film head 6, the limiting plates 51 respectively abut against the surfaces of the second forming roller 4 and the first forming roller 3, the two limiting plates 51 are connected through the connecting rods 52, and the two limiting plates 51 are respectively fixed through the fixing pieces 53; the spacing between the two limiting plates 51 is smaller than the length of the first forming roller 3 and smaller than the length of the output end of the casting film head 6, the forming limiting assembly 5 is erected on the first forming roller 3, the two limiting plates 51 are utilized to limit raw materials discharged along the casting film head 6, so that the raw materials can only flow between the two limiting plates 51 and form the casting film b, in order to prevent the limiting plates 51 from scratching the bottom film a, the limiting plates 51 are made of rubber materials and have certain deformability, lubricating oil or solid lubricating paste can be smeared on the end surfaces of the limiting plates 51, which are propped against the casting film b, to keep the lubrication of the lower end surfaces of the limiting plates 51, and the lower end surfaces of the limiting plates 51 are further chamfered in an arc shape.
Further, in order to remove dust from the casting film b again after the casting film b is formed, the dust removing mechanism 7 includes a housing 71, a negative pressure dust collector 72 disposed in the housing 71, a balancing abutment roller 73, and a vibrator 74, the negative pressure dust collector 72 is disposed above the vibrator 74, a flow path for air flow is provided between the negative pressure dust collector 72 and the vibrator 74, the finished film passes through the flow path, the balancing abutment roller 73 is symmetrically disposed at two sides of an inner end of the housing 71, the vibrator 74 is abutted against a lower end surface of the finished film, and all the balancing abutment rollers 73 are disposed toward the finished film.
In order to ensure that the deviation of the finished film is avoided in the process of vibrating the finished film, the balance abutting rollers 73 on two sides are abutted against the left and right sides of the upper end of the finished film, the balance abutting rollers 73 on two sides and the vibrator 74 form limit positions on the finished film from the upper end and the lower end respectively, the surfaces of the finished film abutted against the vibrator 74 are in an upward bulge shape, the width of the vibrator 74 is longer than that of the casting film b, the balance abutting rollers 73 on two sides are abutted against the surface of the bottom film a respectively, and the balance abutting rollers 73 do not extend to the casting film b so as to form limit positions through the balance abutting rollers 73 on two sides.
And, the surface of the balancing abutment roller 73 near one end of the finished film is equidistantly arranged with a plurality of limiting protrusions 731, and the surface of the bottom film a is provided with a corresponding positioning strip a1, when the balancing abutment roller 73 abuts against the surface of the bottom film a, the limiting protrusions 731 are embedded into the positioning strip a1 to form limiting.
Example two
In this embodiment, a casting film production process is provided, including the casting film production molding line for preventing dust pollution, the production process includes the following specific steps:
s1: taking out the bottom film a from the bottom film roll 1, and winding the bottom film a on the surface of the winding roller 8 after sequentially passing through the tensioning mechanism 2, the electrostatic adsorption rod 9, the first forming roller 3, the second forming roller 4 and the dust removing mechanism 7;
s2: the bottom film a is stretched by extending the length of the pneumatic telescopic rod 21, larger dust and particles on the surface of the bottom film a are scraped by the scraping and absorbing component 24, the dust and the particles are absorbed by the first absorbing cavity 241 and the second absorbing cavity 242, and then the dust is absorbed by the electrostatic absorbing rod 9;
s3: uniformly casting the raw material to the surface of a base film a by using a casting film head 6, extruding the raw material by a first forming roller 3 and a second forming roller 4 to form a casting film b, limiting the flowing width of the raw material by a forming limiting assembly 5 in the forming process, and finally forming a finished film, wherein the width of the formed casting film b is smaller than that of the base film a;
s4: when the finished film passes through the dust removing mechanism 7, the finished film passes through the upper part of the vibrator 74, and is embedded into the positioning strip a1 by utilizing the limiting protrusions 731 on the surface of the balance abutting roller 73, so that the limit and the guide of the finished film are formed, then the vibrator 74 is used for forming high-speed vibration, dust on the surface of the finished film shakes off, and finally the shaked off dust is adsorbed by the negative pressure dust collector 72.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and therefore should not be taken as limiting the scope of the invention, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.
Claims (8)
1. A casting film production molding assembly line for preventing dust pollution is characterized in that: the casting film comprises a bottom film roll (1), a tensioning mechanism (2), a first forming roller (3), a second forming roller (4), a forming limiting assembly (5), a casting film head (6), a dust removing mechanism (7) and a winding roller (8), wherein a bottom film (a) is wound on the bottom film roll (1), the bottom film (a) sequentially passes through the tensioning mechanism (2), the first forming roller (3), the second forming roller (4) and the dust removing mechanism (7) and then is wound in the winding roller (8), raw materials are filled in the casting film head (6), and when the raw materials are discharged to the surface of the first forming roller (3), the casting film (b) is formed by extrusion of the first forming roller (3) and the second forming roller (4) and is adhered to the surface of the bottom film (a) to form a finished film;
the width of the casting film (b) is shorter than the width of the base film (a);
the forming limiting assembly (5) is arranged between the first forming roller (3) and the second forming roller (4), the forming limiting assembly (5) is arranged above the second forming roller (4) and the first forming roller (3), the tensioning mechanism (2) is arranged between the first forming roller (3) and the bottom film roll (1), and the lower end horizontal planes of the tensioning mechanism (2) are lower than the lower end horizontal planes of the first forming roller (3) and the bottom film roll (1);
the tensioning mechanism (2) comprises a pneumatic telescopic rod (21), a fixing frame (22) and a tensioning roller (23), wherein the fixing frame (22) is arranged on an output shaft of the pneumatic telescopic rod (21), the tensioning roller (23) is rotatably arranged at the lower part of the fixing frame (22), the scraping absorption part (24) is abutted against the upper end of the tensioning roller (23), and the fixing frame (22) is respectively connected with two ends of the scraping absorption part (24) through two torsion shafts (221);
the left and right parts of the scraping and adsorbing piece (24) are respectively provided with a first adsorbing cavity (241) and a second adsorbing cavity (242), and the first adsorbing cavity (241) and the second adsorbing cavity (242) are externally connected with an air pump through a communication pipe (243) to manufacture negative pressure.
2. The casting film production line for preventing dust pollution according to claim 1, wherein: the second adsorption cavity (242) and the second adsorption cavity (242) are of included angle structures, the large-caliber ends of the second adsorption cavity (242) and the second adsorption cavity (242) are communicated with the communicating pipe (243), and the small-caliber ends of the first adsorption cavity (241) and the second adsorption cavity (242) extend to the tail end edges of the left side and the right side of the lower part of the scraping adsorption piece (24) respectively.
3. The casting film production line for preventing dust pollution according to claim 1, wherein: the forming limiting assembly (5) comprises limiting plates (51), connecting rods (52) and fixing pieces (53), wherein the limiting plates (51) are symmetrically arranged on the front side and the rear side below the casting film head (6), the limiting plates (51) are respectively abutted against the surfaces of the second forming roller (4) and the first forming roller (3), the two limiting plates (51) are connected through the connecting rods (52), and the two limiting plates (51) are respectively fixed through the fixing pieces (53);
the distance between the two limiting plates (51) is smaller than the length of the first forming roller (3) and smaller than the length of the output end of the casting film head (6).
4. The casting film production line for preventing dust pollution according to claim 1, wherein: the dust removing mechanism (7) comprises a shell (71), and a negative pressure dust collector (72), balance abutting rollers (73) and a vibrator (74) which are arranged in the shell (71), wherein the negative pressure dust collector (72) is positioned above the vibrator (74), a flow channel for gas to flow is arranged between the negative pressure dust collector (72) and the vibrator (74), the finished film passes through the flow channel, the balance abutting rollers (73) are symmetrically arranged at two sides of the inner end of the shell (71), and all the balance abutting rollers (73) are arranged towards the finished film;
the balance abutting rollers (73) on two sides are abutted against the left side and the right side of the upper end of the finished film, and the vibrator (74) is abutted against the lower end surface of the finished film.
5. The casting film production line for preventing dust pollution according to claim 4, wherein: the surface of the finished film, which is abutted against the vibrator (74), is in an upward bulge shape, the width of the vibrator (74) is longer than that of the casting film (b), the balance abutting rollers (73) on two sides are respectively abutted against the surface of the bottom film (a), and the balance abutting rollers (73) do not extend to the casting film (b).
6. The casting film production line for preventing dust pollution according to claim 5, wherein: the surface of the balance abutting roller (73) close to one end of the finished film is provided with a plurality of limiting protrusions (731) in an equidistant array, and the surface of the bottom film (a) is provided with a corresponding positioning strip (a 1), when the balance abutting roller (73) abuts against the surface of the bottom film (a), the limiting protrusions (731) are embedded into the positioning strip (a 1) to form limiting.
7. The casting film production line for preventing dust pollution according to claim 1, wherein: an electrostatic adsorption rod (9) is further arranged between the first forming roller (3) and the tensioning mechanism (2), the electrostatic adsorption rod (9) is arranged close to the bottom film (a), and the electrostatic adsorption rod (9) is used for manufacturing dust on the surface of the electrostatic adsorption bottom film (a) through an external power supply.
8. A casting film production process is characterized in that: a cast film production line comprising a dust pollution prevention film according to any one of claims 1 to 7, said production process comprising the specific steps of:
s1: taking out the bottom film (a) from the bottom film roll (1), and winding the bottom film (a) on the surface of the winding roller (8) after sequentially passing through the tensioning mechanism (2), the electrostatic adsorption rod (9), the first forming roller (3), the second forming roller (4) and the dust removing mechanism (7);
s2: the bottom film (a) is stretched by extending the length of the pneumatic telescopic rod (21), larger dust and particles on the surface of the bottom film (a) are scraped by the scraping and absorbing component (24), the larger dust and particles are absorbed by the first absorbing cavity (241) and the second absorbing cavity (242), and then the dust is absorbed by the electrostatic absorbing rod (9);
s3: uniformly casting the raw material to the surface of a base film (a) by using a casting film head (6), extruding the raw material by using a first forming roller (3) and a second forming roller (4) to form a casting film (b), limiting the flowing width of the raw material by using a forming limiting component (5) in the forming process, and finally forming a finished film, wherein the width of the formed casting film (b) is smaller than that of the base film (a);
s4: when the finished film passes through the dust removing mechanism (7), the dust removing mechanism passes through the upper part of the vibrator (74) and is embedded into the positioning strip (a 1) by utilizing the limiting protrusions (731) on the surface of the balance abutting roller (73) to form the limiting and guiding of the finished film, then the vibrator (74) is used for forming high-speed vibration, dust on the surface of the finished film shakes off, and finally the shaked off dust is adsorbed by the negative pressure dust collector (72).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311306767.2A CN117047954B (en) | 2023-10-10 | 2023-10-10 | Casting film production molding assembly line capable of preventing dust pollution and process thereof |
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| CN202311306767.2A CN117047954B (en) | 2023-10-10 | 2023-10-10 | Casting film production molding assembly line capable of preventing dust pollution and process thereof |
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| CN117047954B true CN117047954B (en) | 2023-12-15 |
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| CN117047954A (en) | 2023-11-14 |
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