CN109228219B - Extrusion film blowing device for PE (polyethylene) protective film and working method thereof - Google Patents
Extrusion film blowing device for PE (polyethylene) protective film and working method thereof Download PDFInfo
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- CN109228219B CN109228219B CN201811058326.4A CN201811058326A CN109228219B CN 109228219 B CN109228219 B CN 109228219B CN 201811058326 A CN201811058326 A CN 201811058326A CN 109228219 B CN109228219 B CN 109228219B
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- crushing
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- heating cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
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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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
Abstract
The invention discloses an extrusion film blowing device of a PE (polyethylene) protective film and a working method thereof, and the extrusion film blowing device comprises a driving mechanism, a crushing and melting mechanism, a spiral propelling mechanism and an extrusion film blowing mechanism, wherein the crushing and melting mechanism is connected to the right side of the driving mechanism; according to the invention, the raw materials are fully stirred, crushed and ground by the crushing roller, so that the raw materials are more refined and more uniformly heated, and the situation that the filter plate is blocked by the raw materials due to agglomeration and the normal production work is influenced is prevented; smash and melt mechanism and spiral advancing mechanism and fix through the ring flange, set up first braked wheel and second braked wheel respectively in spiral advancing mechanism and extrusion blown film mechanism below, be convenient for remove to wash the maintenance to smashing and melting mechanism and spiral advancing mechanism's inboard, guaranteed the device's life.
Description
Technical Field
The invention relates to the technical field of PE protective film production equipment, in particular to an extrusion film blowing device for a PE protective film and a working method thereof.
Background
The production of the protective film is that raw materials are added into an extruder, are stirred in a rotating mode through rotation, propulsion and rotation of a screw rod, are heated to be melted, are extruded into a thin-walled tube through a die gap after impurities are removed through a filter plate and a flow distribution plate, are blown up when the thin-walled tube is hot, are cooled through an air ring, are flattened through a herringbone plate, are compacted through a traction roller and are drawn into a coiling device, and a finished product is obtained. Traditional PE protection film production facility is when producing the PE protection film, because there are many impurity in the raw materials and the heating is inhomogeneous, the raw materials melts not thoroughly in the heating process, thereby lead to the die orifice to take place to block, the blown film device is extruded to the majority and sets up filter equipment in the one side of blown film aircraft nose, be not convenient for take out filter equipment like this, the blown film device integration equipment is extruded to the majority moreover, hardly wash the maintenance to inside, the life-span of the blown film device is extruded in the influence and the production quality of PE protection film.
Disclosure of Invention
The invention aims to provide an extrusion film blowing device of a PE protective film and a working method thereof, wherein raw materials are fully stirred, crushed and ground by a crushing roller, so that the raw materials are more refined and more uniformly heated, and the phenomenon that the raw materials are agglomerated to block a filter plate to influence normal production work is prevented; smash and melt mechanism and spiral advancing mechanism and fix through the ring flange, set up first braked wheel and second braked wheel respectively in spiral advancing mechanism and extrusion blown film mechanism below, be convenient for remove to wash the maintenance to smashing and melting mechanism and spiral advancing mechanism's inboard, guaranteed the device's life.
The purpose of the invention can be realized by the following technical scheme:
an extrusion film blowing device for a PE (polyethylene) protective film comprises a driving mechanism, a crushing and melting mechanism, a spiral propelling mechanism and an extrusion film blowing mechanism, wherein the crushing and melting mechanism is connected to the right side of the driving mechanism, the spiral propelling mechanism is connected with the right end of the crushing and melting mechanism, and the extrusion film blowing mechanism is fixedly connected to the right end of the spiral propelling mechanism;
the driving mechanism comprises a driving shell, a supporting base, a driving motor, a first supporting plate, a first rotating shaft and a first bevel gear, the supporting base is fixedly connected to the bottom surface of the driving shell, the driving motor is fixedly mounted at the bottom surface of the inner side of the driving shell, the first supporting plate is fixedly mounted at the inner wall of the left side of the driving shell, one end of the first rotating shaft is connected with the output shaft end of the driving motor, the other end of the first rotating shaft penetrates through the first supporting plate and extends to the upper side of the first supporting plate, and the first bevel gear is fixedly mounted at one end, far away from the driving motor, of the first rotating shaft;
the crushing and melting mechanism comprises a crushing and heating cylinder, a feeding hopper, a second rotating shaft, a crushing roller and a filter plate, the left end of the heating cylinder is fixedly connected with the outer wall of the right side of the driving shell, the feeding funnel, the second rotating shaft, the crushing roller and the filter plate are all arranged on the inner side of the heating cylinder, the feeding funnel is fixedly connected with the outer surface of the heating cylinder, the feeding hopper is positioned above the crushing heating cylinder, the second rotating shaft is rotatably connected to the outer wall of the right side of the driving shell through a bearing, the left end of the second rotating shaft penetrates through the right wall of the driving shell and extends to the left side of the right wall of the driving shell, and the left end of the second rotating shaft is fixedly connected with a second bevel gear, the right end of the second rotating shaft is fixedly connected with a spiral propelling mechanism, the crushing roller is arranged on the second rotating shaft, and the filter plate is fixedly arranged at the right edge of the crushing heating cylinder;
the spiral propelling mechanism comprises a propelling heating cylinder, a third rotating shaft and propelling blades, the third rotating shaft and the propelling blades are arranged on the inner side of the propelling heating cylinder, the left end of the third rotating shaft penetrates through the filter plate and extends to the left side of the filter plate, the left end of the third rotating shaft is connected with the second rotating shaft through a coupler, the other end of the third rotating shaft is rotatably connected to the right wall of the propelling heating cylinder through a bearing, and the propelling blades are fixedly arranged on the third rotating shaft;
extrusion blown film mechanism includes the connecting cylinder, blown film aircraft nose, inlet end, cooling wind ring, the left end of connecting cylinder and the right-hand member fixed connection who impels the cartridge heater, blown film aircraft nose fixed connection is at the right-hand member of connecting cylinder, inlet end fixed connection is at the lower extreme of blown film aircraft nose, cooling wind ring fixed connection is in the upper end of blown film aircraft nose.
Further, the first bevel gear and the second bevel gear are engaged with each other.
Furthermore, a plurality of first electric heating tubes are arranged on the inner side of the wall of the crushing and heating barrel, the first electric heating tubes are distributed at equal intervals on the inner side of the wall of the crushing and heating barrel along the circumferential direction, a plurality of second electric heating tubes are arranged on the inner side of the wall of the propelling and heating barrel, and the second electric heating tubes are distributed at equal intervals on the inner side of the wall of the propelling and heating barrel along the circumferential direction.
Further, crushing roller includes crushing roller main part, crushing blade and the crushing lug of a plurality of, crushing blade and the equal fixed mounting of crushing lug are on the surface of crushing roller main part, and crushing blade and the crushing lug of a plurality of are interval distribution each other.
Further, an opening cover is arranged on the upper wall of the crushing and heating cylinder.
Furthermore, the right end of the crushing heating cylinder is fixedly connected with the left end of the propelling heating cylinder through a flange plate.
Further, the bottom surface fixed mounting who impels the cartridge heater has first bracing piece, the lower extreme of first bracing piece is connected with first braked wheel, the right side fixedly connected with second backup pad of blown film aircraft nose surface, the bottom surface fixedly connected with second bracing piece of second backup pad, the lower extreme fixedly connected with second braked wheel of second bracing piece.
A working method of an extrusion film blowing device of a PE protective film specifically comprises the following steps:
the method comprises the following steps: putting a PE protective film production raw material into a hopper opening above a feeding hopper, starting a driving motor, and driving an output shaft of the driving motor to rotate so as to drive a first rotating shaft to rotate, wherein the first rotating shaft drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear meshed with the first bevel gear to rotate, the second bevel gear drives a second rotating shaft to rotate, the second rotating shaft drives a crushing roller and a third rotating shaft to rotate, the crushing roller crushes and grinds the raw material, a first electric heating tube on the inner side of the wall of a crushing heating cylinder heats the raw material on the inner side of the crushing heating cylinder, and the heated and melted raw material passes through a filter plate and enters the inner side of a propelling heating;
step two: the third rotating shaft drives the pushing blade to rotate while rotating, the pushing blade pushes the raw material to the extrusion film blowing mechanism, and meanwhile, the second electric heating tube on the inner side of the cylinder wall of the heating cylinder is pushed to heat the raw material, so that the raw material is kept at a constant temperature;
step three: the raw material entering the extrusion film blowing mechanism is blown by a film blowing machine head, the air inlet end at the lower end of the film blowing machine head starts to enter air, a die orifice at the upper end of the film blowing machine head blows out the film, and the film is cooled by a cooling air ring;
step four: after the film blowing is finished, the cover on the upper side of the crushing heating cylinder is opened, the second rotating shaft is separated from the third rotating shaft, the first brake wheel and the second brake wheel are in a non-braking state, the flange plate is loosened, and meanwhile, the spiral pushing mechanism and the extrusion film blowing mechanism are moved rightwards through the first brake wheel and the second brake wheel, so that the crushing melting mechanism and the spiral pushing mechanism are separated, and the filter plate, the crushing heating cylinder and the pushing heating cylinder are cleaned respectively.
The invention has the beneficial effects that:
according to the invention, the grinding and melting mechanism is arranged between the driving mechanism and the spiral propelling mechanism, and the raw materials are fully stirred, ground and ground through the grinding roller, so that the raw materials are more refined, the raw materials are heated more uniformly, and the situation that the filter plates are blocked by the raw materials due to agglomeration to influence the normal production work is prevented; set up the filter between smashing and melting mechanism and spiral advancing mechanism to smash and melt mechanism and spiral advancing mechanism through the ring flange and fix, set up first braked wheel and second braked wheel respectively in spiral advancing mechanism and extrusion blown film mechanism below, conveniently remove it, thereby wash the maintenance to smashing and melting mechanism and spiral advancing mechanism's inboard, guaranteed the device's life.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of an extrusion film blowing apparatus for PE protective films according to the present invention;
FIG. 2 is a schematic structural diagram of a crushing roller in an extrusion film blowing apparatus for PE protective films according to the present invention;
fig. 3 is an enlarged view of a in fig. 1.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, an extrusion film blowing device for a PE protective film comprises a driving mechanism 1, a pulverizing and melting mechanism 2, a spiral propelling mechanism 3 and an extrusion film blowing mechanism 4, wherein the pulverizing and melting mechanism 2 is connected to the right side of the driving mechanism 1, the spiral propelling mechanism 3 is connected to the right end of the pulverizing and melting mechanism 2, and the extrusion film blowing mechanism 4 is fixedly connected to the right end of the spiral propelling mechanism 3;
the driving mechanism 1 comprises a driving shell 11, a supporting base 12, a driving motor 13, a first supporting plate 14, a first rotating shaft 15 and a first bevel gear 16, wherein the supporting base 12 is fixedly connected to the bottom surface of the driving shell 11, the driving motor 13 is fixedly arranged at the bottom surface of the inner side of the driving shell 11, the first supporting plate 14 is fixedly arranged at the inner wall of the left side of the driving shell 11, one end of the first rotating shaft 15 is connected with the output shaft end of the driving motor 13, the other end of the first rotating shaft 15 penetrates through the first supporting plate 14 and extends to the upper side of the first supporting plate 14, and the first bevel gear 16 is fixedly arranged at one end, far away from the driving motor 13, of the first rotating shaft 15;
the crushing and melting mechanism 2 comprises a crushing and heating cylinder 21, a feeding funnel 22, a second rotating shaft 23, a crushing roller 24 and a filter plate 25, the left end of the crushing and heating cylinder 21 is fixedly connected with the right outer wall of a driving shell 11, the feeding funnel 22, the second rotating shaft 23, the crushing roller 24 and the filter plate 25 are all arranged on the inner side of the crushing and heating cylinder 21, the feeding funnel 22 is fixedly connected with the outer surface of the crushing and heating cylinder 21, the feeding funnel 22 is positioned above the crushing and heating cylinder 21, the second rotating shaft 23 is rotatably connected with the right outer wall of the driving shell 11 through a bearing, the left end of the second rotating shaft 23 penetrates through the right wall of the driving shell 11 and extends to the left side of the right wall of the driving shell 11, the left end of the second rotating shaft 23 is fixedly connected with a second bevel gear 26, the right end of the second rotating shaft 23 is fixedly connected with a spiral propelling mechanism 3, the crushing roller 24 is arranged on the second rotating shaft 23, and the filter plate 25 is fixedly arranged at the right side edge of the crushing heating cylinder 21;
the spiral propelling mechanism 3 comprises a propelling heating cylinder 31, a third rotating shaft 32 and propelling blades 33, wherein the third rotating shaft 32 and the propelling blades 33 are both arranged on the inner side of the propelling heating cylinder 31, the left end of the third rotating shaft 32 penetrates through the filter plate 25 and extends to the left side of the filter plate 25, the left end of the third rotating shaft 32 is connected with the second rotating shaft through a coupler 34, the other end of the third rotating shaft 32 is rotatably connected to the right wall of the propelling heating cylinder 31 through a bearing, and the propelling blades 33 are fixedly arranged on the third rotating shaft 32;
extrusion blown film mechanism 4 includes connecting cylinder 41, blown film aircraft nose 42, inlet end 43, cooling wind ring 44, the left end of connecting cylinder 41 and the right-hand member fixed connection who advances cartridge heater 31, blown film aircraft nose 42 fixed connection is at the right-hand member of connecting cylinder 41, inlet end 43 fixed connection is at the lower extreme of blown film aircraft nose 42, cooling wind ring 44 fixed connection is in the upper end of blown film aircraft nose 42.
The first bevel gear 16 and the second bevel gear 26 are engaged with each other, the inner side of the wall of the grinding and heating cylinder 21 is provided with a plurality of first electric heating tubes 27, the plurality of first electric heating tubes 27 are distributed at equal intervals along the circumferential direction at the inner side of the wall of the grinding and heating cylinder 21, the first electric heating tubes heat the raw materials preliminarily to melt the raw materials, the inner side of the wall of the propelling and heating cylinder 31 is provided with a plurality of second electric heating tubes 35, and the plurality of second electric heating tubes 35 are distributed at equal intervals along the circumferential direction at the inner side of the wall of the propelling and heating cylinder 31 to prevent the raw materials at the inner side of the propelling and heating cylinder 31 from cooling, so that the raw materials.
The crushing roller 24 comprises a crushing roller main body 241, a crushing blade 242 and a plurality of crushing lugs 243, the crushing blade 242 and the crushing lugs 243 are fixedly mounted on the surface of the crushing roller main body 241, the crushing blade 242 and the crushing lugs 243 are distributed at intervals, the crushing blade 242 and the crushing lugs 243 are fully stirred and ground for refining, the raw materials are uniformly heated and completely melted, and the raw materials are prevented from being partially agglomerated and blocking a filter plate.
The upper wall department of smashing the cartridge heater 21 is provided with uncapping 28, the right-hand member of smashing the cartridge heater 21 passes through ring flange 5 fixed connection with the left end of propelling the cartridge heater 31, and convenient the dismantlement is convenient for maintain the device, the bottom surface fixed mounting who propels the cartridge heater 31 has first bracing piece 36, the lower extreme of first bracing piece 36 is connected with first braked wheel 37, the right side fixedly connected with second backup pad 45 of blown film aircraft nose 42 surface, the bottom surface fixedly connected with second bracing piece 46 of second backup pad 45, the lower extreme fixedly connected with second braked wheel 47 of second bracing piece 46 is convenient for remove screw propulsion mechanism 3 and extrusion blown film mechanism 4, and convenient to use is favorable to the washing and the maintenance to the device internals.
A working method of an extrusion film blowing device of a PE protective film specifically comprises the following steps:
the method comprises the following steps: putting raw materials for producing a PE protective film into a hopper opening above a feeding hopper 22, starting a driving motor 13, rotating an output shaft of the driving motor 13 so as to drive a first rotating shaft 15 to rotate, driving a first bevel gear 16 to rotate by the first rotating shaft 15, driving a second bevel gear 26 meshed with the first bevel gear 16 to rotate by the first bevel gear 16, driving a second rotating shaft 23 to rotate by the second bevel gear 26, driving a crushing roller 24 and a third rotating shaft 32 to rotate by the second rotating shaft 23, fully stirring, crushing and grinding the raw materials by the crushing roller 24, heating the raw materials inside a crushing and heating cylinder 21 by a first electric heating tube 27 on the inner side of the cylinder wall of the crushing and heating cylinder 21, and enabling the heated and melted raw materials to pass through a filter plate 25 and enter the;
step two: the third rotating shaft 32 rotates and simultaneously drives the pushing blade 33 to rotate, the pushing blade 33 pushes the raw material to the extrusion film blowing mechanism 4, and simultaneously, the second electric heating tube 35 at the inner side of the cylinder wall of the heating cylinder 31 is pushed to heat the raw material, so that the raw material is kept at a constant temperature;
step three: the raw material entering the extrusion film blowing mechanism 4 is blown by a film blowing machine head 42, the air inlet end 43 at the lower end of the film blowing machine head 42 starts to enter air, the film is blown out by a die orifice at the upper end of the film blowing machine head 42, and the film is cooled by a cooling air ring 44;
step four: after the film blowing is finished, the cover on the upper side of the crushing heating cylinder 21 is opened, the second rotating shaft 23 is separated from the third rotating shaft 32, the first brake wheel 37 and the second brake wheel 47 are in a non-braking state, the flange plate 5 is loosened, the spiral propelling mechanism 3 and the extrusion film blowing mechanism 4 are moved rightwards through the first brake wheel 37 and the second brake wheel 47, the crushing and melting mechanism 2 is separated from the spiral propelling mechanism 3, and the filter plate 25, the crushing heating cylinder 21 and the propulsion heating cylinder 31 are cleaned respectively.
According to the invention, the grinding and melting mechanism is arranged between the driving mechanism and the spiral propelling mechanism, and the raw materials are fully stirred, ground and ground through the grinding roller, so that the raw materials are more refined, the raw materials are heated more uniformly, and the situation that the filter plates are blocked by the raw materials due to agglomeration to influence the normal production work is prevented; set up the filter between smashing and melting mechanism and spiral advancing mechanism to smash and melt mechanism and spiral advancing mechanism through the ring flange and fix, set up first braked wheel and second braked wheel respectively in spiral advancing mechanism and extrusion blown film mechanism below, conveniently remove it, thereby wash the maintenance to smashing and melting mechanism and spiral advancing mechanism's inboard, guaranteed the device's life.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (1)
1. The extrusion film blowing device for the PE protective film is characterized by comprising a driving mechanism (1), a crushing and melting mechanism (2), a spiral propelling mechanism (3) and an extrusion film blowing mechanism (4), wherein the crushing and melting mechanism (2) is connected to the right side of the driving mechanism (1), the spiral propelling mechanism (3) is connected with the right end of the crushing and melting mechanism (2), and the extrusion film blowing mechanism (4) is fixedly connected to the right end of the spiral propelling mechanism (3);
the driving mechanism (1) comprises a driving shell (11), a supporting base (12), a driving motor (13), a first supporting plate (14), a first rotating shaft (15) and a first bevel gear (16), wherein the supporting base (12) is fixedly connected to the bottom surface of the driving shell (11), the driving motor (13) is fixedly installed on the inner bottom surface of the driving shell (11), the first supporting plate (14) is fixedly installed on the inner wall of the left side of the driving shell (11), one end of the first rotating shaft (15) is connected with the end of an output shaft of the driving motor (13), the other end of the first rotating shaft (15) penetrates through the first supporting plate (14) and extends to the upper side of the first supporting plate (14), and the first bevel gear (16) is fixedly installed at one end, far away from the driving motor (13), of the first rotating shaft (15);
the crushing and melting mechanism (2) comprises a crushing and heating cylinder (21), a feeding funnel (22), a second rotating shaft (23), a crushing roller (24) and a filter plate (25), the left end of the crushing and heating cylinder (21) is fixedly connected with the right outer wall of a driving shell (11), the feeding funnel (22), the second rotating shaft (23), the crushing roller (24) and the filter plate (25) are all arranged on the inner side of the crushing and heating cylinder (21), the feeding funnel (22) is fixedly connected to the outer surface of the crushing and heating cylinder (21), the feeding funnel (22) is positioned above the crushing and heating cylinder (21), the second rotating shaft (23) is rotatably connected to the right outer wall of the driving shell (11) through a bearing, the left end of the second rotating shaft (23) penetrates through the right wall of the driving shell (11) and extends to the left side of the right wall of the driving shell (11), and the left end of the second rotating shaft (23) is fixedly connected with a second bevel gear (26), the right end of the second rotating shaft (23) is fixedly connected with the spiral propelling mechanism (3), the crushing roller (24) is arranged on the second rotating shaft (23), and the filter plate (25) is fixedly arranged at the right edge of the crushing heating cylinder (21);
the spiral propelling mechanism (3) comprises a propelling heating cylinder (31), a third rotating shaft (32) and propelling blades (33), wherein the third rotating shaft (32) and the propelling blades (33) are arranged on the inner side of the propelling heating cylinder (31), the left end of the third rotating shaft (32) penetrates through the filter plate (25) and extends to the left side of the filter plate (25), the left end of the third rotating shaft (32) is connected with the second rotating shaft through a coupler (34), the other end of the third rotating shaft (32) is rotatably connected to the right wall of the propelling heating cylinder (31) through a bearing, and the propelling blades (33) are fixedly mounted on the third rotating shaft (32);
the extrusion film blowing mechanism (4) comprises a connecting cylinder (41), a film blowing machine head (42), an air inlet end (43) and a cooling air ring (44), wherein the left end of the connecting cylinder (41) is fixedly connected with the right end of the propulsion heating cylinder (31), the film blowing machine head (42) is fixedly connected with the right end of the connecting cylinder (41), the air inlet end (43) is fixedly connected with the lower end of the film blowing machine head (42), and the cooling air ring (44) is fixedly connected with the upper end of the film blowing machine head (42);
the first bevel gear (16) and the second bevel gear (26) are meshed with each other;
the inner side of the wall of the crushing and heating cylinder (21) is provided with a plurality of first electric heating tubes (27), the plurality of first electric heating tubes (27) are distributed on the inner side of the wall of the crushing and heating cylinder (21) at equal intervals along the circumferential direction, the inner side of the wall of the propelling and heating cylinder (31) is provided with a plurality of second electric heating tubes (35), and the plurality of second electric heating tubes (35) are distributed on the inner side of the wall of the propelling and heating cylinder (31) at equal intervals along the circumferential direction;
the crushing roller (24) comprises a crushing roller main body (241), a crushing blade (242) and a plurality of crushing lugs (243), the crushing blade (242) and the crushing lugs (243) are fixedly arranged on the surface of the crushing roller main body (241), and the crushing blade (242) and the crushing lugs (243) are mutually distributed at intervals;
an opening cover (28) is arranged on the upper wall of the crushing heating cylinder (21);
the right end of the crushing heating cylinder (21) is fixedly connected with the left end of the propelling heating cylinder (31) through a flange plate (5);
a first supporting rod (36) is fixedly installed on the bottom surface of the propelling heating cylinder (31), a first brake wheel (37) is connected to the lower end of the first supporting rod (36), a second supporting plate (45) is fixedly connected to the right side of the outer surface of the film blowing machine head (42), a second supporting rod (46) is fixedly connected to the bottom surface of the second supporting plate (45), and a second brake wheel (47) is fixedly connected to the lower end of the second supporting rod (46);
the working method of the extrusion film blowing device comprises the following steps:
the method comprises the following steps: putting raw materials for producing a PE protective film into a hopper opening above a feeding hopper (22), starting a driving motor (13), enabling an output shaft of the driving motor (13) to rotate so as to drive a first rotating shaft (15) to rotate, driving a first bevel gear (16) to rotate by the first rotating shaft (15), driving a second bevel gear (26) meshed with the first bevel gear (16) to rotate by the first bevel gear (16), driving a second rotating shaft (23) to rotate by the second rotating shaft (26), driving a crushing roller (24) and a third rotating shaft (32) to rotate by the second rotating shaft (23), crushing and grinding the raw materials by the crushing roller (24), heating the raw materials inside the crushing and heating cylinder (21) by a first electric heating tube (27) inside the wall of the crushing and heating cylinder (21), and enabling the heated and melted raw materials to pass through a filter plate (25) and enter the pushing and heating cylinder (31);
step two: the third rotating shaft (32) rotates and simultaneously drives the pushing blade (33) to rotate, the pushing blade (33) pushes the raw material to the extrusion film blowing mechanism (4), and meanwhile, the second electric heating tube (35) on the inner side of the cylinder wall of the pushing heating cylinder (31) heats the raw material, so that the raw material is kept at a constant temperature;
step three: the raw material entering the extrusion film blowing mechanism (4) is blown by a film blowing machine head (42), air starts to enter from an air inlet end (43) at the lower end of the film blowing machine head (42), the film is blown out from a die orifice at the upper end of the film blowing machine head (42), and the film is cooled by a cooling air ring (44);
step four: after film blowing is finished, an open cover positioned on the upper side of the crushing heating cylinder (21) is opened, the second rotating shaft (23) is separated from the third rotating shaft (32), the first brake wheel (37) and the second brake wheel (47) are in a non-braking state, the flange plate (5) is loosened, the spiral propelling mechanism (3) and the extrusion film blowing mechanism (4) are moved rightwards through the first brake wheel (37) and the second brake wheel (47), the crushing and melting mechanism (2) is separated from the spiral propelling mechanism (3), and the filter plate (25), the crushing heating cylinder (21) and the propulsion heating cylinder (31) are cleaned respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811058326.4A CN109228219B (en) | 2018-09-11 | 2018-09-11 | Extrusion film blowing device for PE (polyethylene) protective film and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811058326.4A CN109228219B (en) | 2018-09-11 | 2018-09-11 | Extrusion film blowing device for PE (polyethylene) protective film and working method thereof |
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| CN109228219B true CN109228219B (en) | 2020-09-01 |
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| CN113043631A (en) * | 2019-12-29 | 2021-06-29 | 麦斯科林（无锡）科技有限公司 | Film blowing forming process of dust-free plastic bag and preparation method thereof |
| CN113524641B (en) * | 2021-06-21 | 2023-11-21 | 广州市宝绅科技应用有限公司 | Degradable environment-friendly PE film blowing equipment for packaging of shoes and clothes |
| CN115157619B (en) * | 2022-07-06 | 2023-07-07 | 江苏科尔玛智能装备制造有限公司 | Intelligent extrusion casting film production device |
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| CN109228219A (en) | 2019-01-18 |
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