CN112497696A - Production process of nano material modified polyolefin resin film - Google Patents

Production process of nano material modified polyolefin resin film Download PDF

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Publication number
CN112497696A
CN112497696A CN202011379000.9A CN202011379000A CN112497696A CN 112497696 A CN112497696 A CN 112497696A CN 202011379000 A CN202011379000 A CN 202011379000A CN 112497696 A CN112497696 A CN 112497696A
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CN
China
Prior art keywords
rod
polyolefin resin
stretching
transverse stretching
adjusting
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Granted
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CN202011379000.9A
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Chinese (zh)
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CN112497696B (en
Inventor
朱舒畅
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Shenzhen Yingnuo Meida Technology Co ltd
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Individual
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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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • 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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • 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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B29C55/165—Apparatus therefor
    • 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
    • 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
    • B29L2007/002—Panels; Plates; Sheets

Abstract

The invention discloses a production process of a nano material modified polyolefin resin film, which comprises the following steps: (1) raw materials: (2) extruding: (3) quenching: (4) stretching: (5) after stretching, sequentially performing thickness measurement, corona treatment, rolling, slitting and packaging to complete the production process of the polyolefin resin film; the invention adopts an indirect water cooling method to rapidly cool the polyolefin resin extruded from the extrusion head, thereby achieving the temperature of easy stretching, and the transverse stretching rod is arranged to be adjustable so as to be suitable for the requirements of different stretching widths, and the invention does not adopt edge stretching, omits the judgment of leftover materials and improves the production efficiency.

Description

Production process of nano material modified polyolefin resin film
Technical Field
The invention belongs to the technical field of polyolefin resin films, and particularly relates to a production process of a nano-material modified polyolefin resin film.
Background
Before the film is stretched, the film can be stretched only by rapidly cooling to a temperature suitable for stretching, but the conventional rapid cooling operation is complex and the effect is not ideal; when the film is stretched, the edge of the film is clamped to stretch, so that the clamped part has traces, the film needs to be cut off, the material is wasted, and the utilization rate is reduced.
Disclosure of Invention
The invention provides a production process of a nano material modified polyolefin resin film, which can quickly cool and save materials in order to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a production process of a nano material modified polyolefin resin film comprises the following steps: a production process of a nano material modified polyolefin resin film comprises the following steps: (1) raw materials: carrying out high-speed banburying, melting, extruding and granulating on the raw materials to prepare a polyolefin resin master batch; (2) extruding: melting the polyolefin resin master batch, and extruding the melted polyolefin resin master batch through a production machine; (3) quenching: rapidly cooling the extruded polyolefin resin by a production machine to meet the stretching requirement; (4) stretching: longitudinally stretching the cooled polyolefin resin by a production machine, and then transversely stretching; (5) and after stretching, sequentially performing thickness measurement, corona treatment, rolling, slitting and packaging to complete the production process of the polyolefin resin film.
The production machine comprises an extrusion head, a first support frame, a cooling part arranged on the first support frame, a second support frame, a plurality of longitudinal stretching rods arranged on the second support frame, a third support frame, a plurality of driving blocks rotatably arranged on the third support frame, upper transverse stretching rods respectively rotatably arranged on the driving blocks, lower transverse stretching rods respectively rotatably arranged on the driving blocks, and an adjusting part arranged on the lower transverse stretching rods; the cooling part comprises a driving rod rotatably arranged on the first supporting rod, a cooling cylinder arranged on the driving rod, a connecting block used for connecting the driving rod and the cooling cylinder, a stirring assembly arranged on the connecting block, a leakage-proof plate symmetrically arranged on the first supporting frame and used for sealing the cooling cylinder, a guide rod arranged on the leakage-proof plate, a leakage opening arranged on the guide rod, a leakage passage with two ends respectively communicated with the inside of the cooling cylinder and the leakage opening, and an extrusion assembly arranged on the first supporting frame; the stirring subassembly is including locating V word groove on the connecting block, locate the edge circulation mouth, both ends that connecting block circumference distributes respectively with V word groove with logical groove that the circulation mouth is linked together, locate one of circulation mouth is served the last arc guide block.
After high-temperature hot melting, the polyolefin resin is extruded through the extrusion head, the driving rod is started before the polyolefin resin is extruded, the cooling cylinder starts to rotate through the connecting block when the driving rod rotates, then the high-temperature polyolefin resin slides onto the cooling cylinder, the rotating center of the cooling cylinder is slightly more leftward than the position where the extrusion head comes out, in this way, when the polyolefin resin slides down, the polyolefin resin can be naturally guided to the right side of the cooling cylinder instead of the left side through gravity, the polyolefin resin can not slide onto the ground when the cooling cylinder does not work, so that materials are wasted, the inside of the cooling cylinder is filled with water, as the specific heat capacity of the water is larger, the polyolefin resin can be absorbed when the cooling cylinder works, the effect of cooling the polyolefin resin is achieved, when the cooling cylinder rotates, the leakage-proof plate cannot rotate, and the air leakage channel is kept in an upward state all the time, therefore, when the water temperature absorbs heat very high, the water vapor of the water is discharged from the air leakage port through the air leakage channel, on one hand, the water in the cooling cylinder can be cooled rapidly, so that the cooling cylinder can keep an effective working state all the time, the polyolefin resin on the cooling cylinder is cooled continuously, on the other hand, when the high-temperature water vapor is discharged from the air leakage port, the direction of the high-temperature water vapor just faces to the extrusion end of the extrusion head, and therefore, the thermal expansion effect generated under the condition that the surface of the polyolefin resin is cooled rapidly but the internal temperature is kept unchanged due to too large external temperature difference when the polyolefin resin in the extrusion head just comes out from the extrusion end can be relieved, the surface performance and the internal performance of the polyolefin resin are kept consistent, and the quality of the polyolefin resin after being manufactured into a film is finally ensured; the connecting block drives the cooling cylinder to rotate, wherein a circle of V-shaped groove openings are formed outside the connecting block, when the connecting block rotates, water in the groove openings can be thrown out towards two sides of the V shape under the centrifugal effect, the thrown water can return, and the water can enter the V-shaped groove again through the flow openings and the through grooves, so that circulating cooling is formed, the water is uniformly heated, the arc-shaped guide block can enable the water flow to flow into the V-shaped groove more stably, the circulating state can achieve a stable effect all the time, the cooling effect is improved, the unstretched polyolefin resin is rapidly cooled, the next stretching process is carried out, the working interval is reduced, and the efficiency is improved; the transverse stretching rod can enable the polyolefin resin to be integrally stretched along the rotating direction, and the polyolefin resin film is not transversely pulled apart by clamping the edge.
The extrusion assembly comprises first support rods symmetrically arranged on the first support frame, sliding blocks respectively slidably arranged on the first support rods, extrusion rods with two ends rotatably arranged on the sliding blocks, a second support rod arranged on the first support frame and a guide assembly arranged on the second support rod; the direction subassembly includes that both ends rotationally locate bull stick on the second bracing piece, rotationally locate arc guide bar, both ends on the bull stick respectively with the arc guide bar with the torsional spring that the bull stick links to each other, wear to locate on the slider and one end with the push rod that the bull stick links firmly.
When the polyolefin resin is rapidly cooled, the polyolefin resin is subjected to primary extrusion through the extrusion rod, so that the polyolefin resin is firstly changed into a sheet shape from a block shape, a foundation is provided for subsequent longitudinal stretching and transverse stretching, the material is prevented from being damaged due to sudden stretching, and the buffering time is prolonged; the sliding block can slide by rotating the push rod, so that the distance between the extrusion rod and the cooling block is adjusted, the primary processing can enter a controllable effect, and the primary extrusion thickness is different due to different rotating speeds, so that the polyolefin resin can be ensured to have a good extrusion effect no matter at which rotating speed; wherein the arc guide rod is not contacted with the cooling cylinder when not working, so that the abrasion to the arc guide rod can be reduced, thereby improving the practical service life, when the work is started, the push rod is pushed, firstly, the slide block is moved to adjust the distance, then the rotating rod rotates, the arc guide rod also rotates, one end of the arc guide rod is propped against the cooling cylinder, when the work is started, the polyolefin resin which is cooled and preliminarily extruded enters the longitudinal stretching rod through the guide of the arc guide rod, wherein because the torsional spring is arranged between the rotating rod and the arc guide rod, when the arc guide rod is contacted with the cooling cylinder, the buffering force is always generated, the rigid contact is avoided to increase the abrasion, therefore, the polyolefin resin is required to be attached to the cooling cylinder when being cooled through the guide of the arc guide rod, if the guide is not carried out, the polyolefin resin is always wound on the cooling cylinder, and when the rotating push rod lets the distance between the extrusion stem and the cooling cylinder more and more near, can appear that the extrusion stem is crowded polyolefin resin and is let polyolefin resin with attached on the cooling cylinder easily, the arc guide bar also can more and more press close to the cooling cylinder this moment, and synchronous rotation can let polyolefin resin all the time all can be guided to on vertical tensile pole to prevent unexpected the emergence, improve the stability of work.
The adjusting component comprises an adjusting rod, an adjusting nut, a fourth supporting frame, a first synchronizing rod, a first connecting rod, a second synchronizing rod, a second connecting rod, a fixed rod and a rotating component, wherein the adjusting rod is slidably arranged on the second supporting frame, the adjusting nut is used for adjusting the displacement of the adjusting rod, the first synchronizing rod is slidably arranged on the fourth supporting frame and is used for supporting the lower transverse stretching rod, the first connecting rod is connected with the first synchronizing rod and the adjusting rod at two ends respectively, the second connecting rod is connected with the second synchronizing rod and the adjusting rod at two ends respectively, the fixed rod is arranged on the first connecting rod and the second connecting rod respectively, the rotating component is rotatably arranged on the fixed rod and comprises a rotating block and a supporting groove, the rotating block is rotatably arranged on the fixed rod, and the supporting; the fixing rod part is positioned on the supporting groove; one end of the upper transverse stretching rod and one end of the lower transverse stretching rod are positioned on the supporting groove.
When the transverse length of the polyolefin resin template needs to be controlled, the adjusting rod slides on the second support frame by rotating the adjusting nut, the first synchronous rod and the second synchronous rod are made to be consistent with the movement of the adjusting rod by the first connecting rod and the second connecting rod, the upper transverse stretching rod and the lower transverse stretching rod can rotate around the third support frame by the synchronous rods when moving, the transverse stretching length of the polyolefin resin is adjusted by adjusting the inclination angle of the transverse stretching rod, the rotating block is arranged on the synchronous rods, one end of the transverse stretching rod is rotatably arranged on the rotating block in a penetrating way, when the transverse stretching rod rotates, the transverse stretching rod rotates around one end, so the distance of the other end is different when the transverse stretching rod rotates, the transverse stretching rod can freely slide on the supporting rod, and then the transverse stretching rods can rotate together under the synchronous premise, thereby guarantee stably, let polyolefin resin can not destroyed when transversely stretching, wherein change the piece round the dead lever pivoted, change the piece and rotate the transversely tensile pole that can adapt to different angles, when transversely tensile pole rotates certain angle, its one end can get into the inside of supporting the groove more, when entering into certain degree, can push up the inside partial dead lever of supporting the groove, form and block the state, a protection mechanism is provided, avoid the transversely tensile pole of symmetry to collide each other, thereby influence tensile effect, through the pivoted method, finally improve transversely tensile success rate, thereby make and stretch better, the final quality of polyolefin resin film has been guaranteed.
In summary, the invention has the following advantages: the polyolefin resin extruded from the extrusion head is rapidly cooled by adopting an indirect water cooling method, so that the temperature of easy stretching is reached, the transverse stretching rod is arranged to be adjustable, the stretching device is suitable for the requirements of different stretching widths, the edge stretching is not carried out, the judgment of leftover materials is omitted, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a cross-sectional perspective view of fig. 2 taken along a-a.
Fig. 4 is a cross-sectional perspective view of fig. 2 taken along B-B.
Fig. 5 is a partial structural view of a cooling member in the present invention.
Fig. 6 is a partial structural view of an adjusting member in the present invention.
Fig. 7 is an enlarged view of a portion a in fig. 4.
Fig. 8 is an enlarged view at B in fig. 1.
Fig. 9 is an enlarged view at C in fig. 1.
Detailed Description
A production process of a nano material modified polyolefin resin film comprises the following steps: (1) raw materials: carrying out high-speed banburying, melting, extruding and granulating on the raw materials to prepare a polyolefin resin master batch; (2) extruding: melting the polyolefin resin master batch, and extruding the melted polyolefin resin master batch through a production machine; (3) quenching: rapidly cooling the extruded polyolefin resin by a production machine to meet the stretching requirement; (4) stretching: longitudinally stretching the cooled polyolefin resin by a production machine, and then transversely stretching; (5) after stretching, sequentially performing thickness measurement, corona treatment, rolling, slitting and packaging to complete the production process of the polyolefin resin film;
as shown in fig. 1 to 9, the production machine includes an extrusion head 1, a first support frame 11, a cooling unit 2, a second support frame 12, a plurality of longitudinal stretching rods 13, a third support frame 14, an upper transverse stretching rod 15, a lower transverse stretching rod 16, and an adjusting unit 6; the cooling component 2 is arranged on the first support frame 11, the plurality of longitudinal stretching rods 13 are arranged on the second support frame 12, the plurality of driving blocks are rotatably arranged on the third support frame 14, the upper transverse stretching rods 15 are respectively rotatably arranged on the driving blocks, the lower transverse stretching rods 16 are respectively rotatably arranged on the driving blocks, and the adjusting component 6 is arranged on the lower transverse stretching rods 16.
As shown in fig. 1, 4, 5 and 7, the cooling component 2 includes a driving rod 21, a cooling cylinder 22, a connecting block 23, a stirring assembly 3, a leakage-proof plate 24, a guide rod 25, a leakage port 26, a leakage channel 27 and an extrusion assembly 4; the actuating lever 21 is rotationally located on the first bracing piece 41, the cooling cylinder 22 is located on the actuating lever 21, connecting block 23 is used for connecting the actuating lever 21 with the cooling cylinder 22, stirring subassembly 3 is located on the connecting block 23, leak protection board 24 symmetry is located it is right just to be used for on the first bracing piece 11 the cooling cylinder 22 is sealed, and the guide bar 25 is located on the leak protection board 24, the mouth 26 that loses heart is located on the guide bar 25, the passageway 27 both ends that lose heart respectively with the cooling cylinder 22 is inside with the mouth 26 that loses heart is linked together, and extrusion subassembly 4 is located on the first bracing piece 11.
As shown in fig. 5 and 7, the stirring assembly 3 includes a V-shaped groove 31, a flow opening 32, a through groove 33, and an arc-shaped guide block 34; v-shaped groove 31 is located on connecting block 23, circulation mouth 32 is located and is followed connecting block 23 circumference distributes, lead to groove 33 both ends respectively with V-shaped groove 31 with circulation mouth 32 is linked together, and arc guide block 34 is located circulation mouth 32 is served.
As shown in fig. 8, the pressing assembly 4 includes a first supporting rod 41, a sliding block 42, a pressing rod 43, a second supporting rod 44, and a guiding assembly 5; the first supporting rods 41 are symmetrically arranged on the first supporting frame 11, the sliding blocks 42 are respectively slidably arranged on the first supporting rods 41, two ends of the extrusion rod 43 are rotatably arranged on the sliding blocks 42, the second supporting rod 44 is arranged on the first supporting frame 11, and the guide assembly 5 is arranged on the second supporting rod 44.
As shown in fig. 8, the guide assembly 5 includes a rotating rod 51, an arc-shaped guide rod 52, a torsion spring 53, and a push rod 54; two ends of the rotating rod 51 are rotatably arranged on the second supporting rod 44, the arc-shaped guide rod 52 is rotatably arranged on the rotating rod 51, two ends of the torsion spring 53 are respectively connected with the arc-shaped guide rod 52 and the rotating rod 51, the push rod 54 is arranged on the sliding block 42 in a penetrating way, and one end of the push rod is fixedly connected with the rotating rod 51.
As shown in fig. 1, 3 and 6, the adjusting component 6 includes an adjusting rod 61, an adjusting nut 62, a fourth supporting frame 63, a first synchronizing rod 64, a first connecting rod 65, a second synchronizing rod 66, a second connecting rod 67, a fixing rod 68, and a rotating assembly 7; the adjusting rod 61 is slidably disposed on the second supporting frame 12, the adjusting nut 62 is used for adjusting the displacement of the adjusting rod 61, the first synchronizing rod 64 is slidably disposed on the fourth supporting frame 63 and is used for supporting the lower transverse stretching rod 16, two ends of the first connecting rod 65 are respectively connected with the first synchronizing rod 64 and the adjusting rod 61, the second synchronizing rod 66 is used for supporting the upper transverse stretching rod 15, two ends of the second connecting rod 67 are respectively connected with the second synchronizing rod 66 and the adjusting rod 61, the fixing rods 68 are respectively disposed on the first connecting rod 65 and the first connecting rod, and the rotating assembly 7 is rotatably disposed on the fixing rods 68.
The rotating assembly 7 comprises a rotating block 71 and a supporting groove 72; the rotating block 71 is rotatably arranged on the fixed rod 68, and the supporting groove 72 is arranged on the rotating block 71; the fixing rod 68 is partially positioned on the supporting groove 72; one ends of the upper transverse stretching rod 15 and the lower transverse stretching rod 16 are located on the support groove 72.
The specific working process is as follows:
the mother material after heat capacity comes out from the extrusion head 1 and enters the cooling cylinder 22, water is arranged in the cooling cylinder 22, the horizontal plane of the cooling cylinder 22 is not lower than the lowest position of the through groove 33, when the cooling cylinder 22 rotates, the polyolefin resin film which is not stretched yet can be cooled, after cooling, the polyolefin resin film can be longitudinally stretched through the longitudinal stretching rod firstly and then enters the middle of the upper transverse stretching rod 15 and the lower transverse stretching rod 16 to be transversely stretched, the adjusting rod 61 can be moved left and right by rotating the adjusting nut 62, the upper transverse stretching rod 15 and the lower transverse stretching rod 16 can simultaneously rotate, the rotating angle of the transverse stretching rod is adjusted, and therefore different transverse stretching lengths of the polyolefin resin film are achieved.

Claims (7)

1. A production process of a nano material modified polyolefin resin film is characterized by comprising the following steps: the method comprises the following steps:
(1) raw materials: carrying out high-speed banburying, melting, extruding and granulating on the raw materials to prepare a polyolefin resin master batch;
(2) extruding: melting the polyolefin resin master batch, and extruding the melted polyolefin resin master batch through a production machine;
(3) quenching: rapidly cooling the extruded polyolefin resin by a production machine to meet the stretching requirement;
(4) stretching: longitudinally stretching the cooled polyolefin resin by a production machine, and then transversely stretching;
(5) after stretching, sequentially performing thickness measurement, corona treatment, rolling, slitting and packaging to complete the production process of the polyolefin resin film;
the production machine comprises an extrusion head (1), a first support frame (11), a cooling part (2) arranged on the first support frame (11), a second support frame (12), a plurality of longitudinal stretching rods (13) arranged on the second support frame (12), a third support frame (14), a plurality of driving blocks rotatably arranged on the third support frame (14), upper transverse stretching rods (15) respectively rotatably arranged on the driving blocks, lower transverse stretching rods (16) respectively rotatably arranged on the driving blocks, and an adjusting part (6) arranged on the lower transverse stretching rods (16); the extrusion port extrudes the hot-melt polyolefin resin to allow the polyolefin resin to enter the cooling unit.
2. The process for producing a nanomaterial-modified polyolefin resin film according to claim 1, characterized in that: the cooling part (2) comprises a driving rod (21) rotatably arranged on the first supporting rod (41), a cooling cylinder (22) arranged on the driving rod (21), a connecting block (23) used for connecting the driving rod (21) with the cooling cylinder (22), a stirring assembly (3) arranged on the connecting block (23), a leakage-proof plate (24) symmetrically arranged on the first supporting frame (11) and used for sealing the cooling cylinder (22), a guide rod (25) arranged on the leakage-proof plate (24), an air leakage opening (26) arranged on the guide rod (25), an air leakage channel (27) with two ends respectively communicated with the inside of the cooling cylinder (22) and the air leakage opening (26), and an extrusion assembly (4) arranged on the first supporting frame (11); the polyolefin tree which is hot melted enters the cooling cylinder for cooling, and water absorbs heat to become steam which comes out from the air leakage opening through the air leakage channel and is sprayed onto the extrusion head.
3. The process for producing a nanomaterial-modified polyolefin resin film according to claim 2, characterized in that: the stirring assembly (3) comprises a V-shaped groove (31) arranged on the connecting block (23), a circulation port (32) arranged along the circumferential direction of the connecting block (23), a through groove (33) with two ends respectively communicated with the V-shaped groove (31) and the circulation port (32), and an arc-shaped guide block (34) arranged at one end of the circulation port (32); water enters the circulation port firstly, flows to the V-shaped groove through the through groove, and is thrown out from two ends of the groove through the rotating centrifugal force.
4. The process for producing a nanomaterial-modified polyolefin resin film according to claim 3, characterized in that: the extrusion assembly (4) comprises first support rods (41) symmetrically arranged on the first support frame (11), sliding blocks (42) respectively slidably arranged on the first support rods (41), extrusion rods (43) with two ends rotatably arranged on the sliding blocks (42), second support rods (44) arranged on the first support frame (11), and guide assemblies (5) arranged on the second support rods (44); the slider moves and the extrusion rod approaches the cooling cylinder, thereby preliminarily extruding the polyolefin resin on the cooling cylinder.
5. The process for producing a nanomaterial-modified polyolefin resin film according to claim 4, characterized in that: the guide assembly (5) comprises a rotating rod (51) with two ends rotatably arranged on the second support rod (44), an arc-shaped guide rod (52) rotatably arranged on the rotating rod (51), a torsion spring (53) with two ends respectively connected with the arc-shaped guide rod (52) and the rotating rod (51), and a push rod (54) which is arranged on the sliding block (42) in a penetrating manner and one end of which is fixedly connected with the rotating rod (51); the preliminarily extruded polyolefin resin sheet is fed onto the longitudinal stretching rod through the arcuate guide rod.
6. The process for producing a nanomaterial-modified polyolefin resin film according to claim 1, characterized in that: the adjusting component (6) comprises an adjusting rod (61) which is slidably arranged on the second supporting frame (12), an adjusting nut (62) for adjusting the displacement of the adjusting rod (61), a fourth supporting frame (63), a first synchronizing rod (64) which is slidably arranged on the fourth supporting frame (63) and is used for supporting the lower transverse stretching rod (16), and a first connecting rod (65) of which two ends are respectively connected with the first synchronizing rod (64) and the adjusting rod (61), a second synchronous rod (66) for supporting the upper transverse stretching rod (15), a second connecting rod (67) with two ends respectively connected with the second synchronous rod (66) and the adjusting rod (61), a fixed rod (68) respectively arranged on the first connecting rod (65) and the second connecting rod, and a rotating assembly (7) rotatably arranged on the fixed rod (68); the adjusting nut is rotated, so that the adjusting rod slides on the second supporting frame, the first synchronizing rod and the second synchronizing rod are made to be consistent with the movement of the adjusting rod through the first connecting rod and the second connecting rod, the upper transverse stretching rod and the lower transverse stretching rod can rotate around the third supporting frame when the synchronizing rods move, and the transverse stretching length of the polyolefin resin is adjusted through adjusting the inclination angle of the transverse stretching rod.
7. The process for producing a nanomaterial-modified polyolefin resin film according to claim 6, characterized in that: the rotating assembly (7) comprises a rotating block (71) which is rotatably arranged on the fixed rod (68) and a supporting groove (72) which is arranged on the rotating block (71); the fixing rod (68) is partially positioned on the supporting groove (72); one end of the upper transverse stretching rod (15) and one end of the lower transverse stretching rod (16) are positioned on the supporting groove (72); when the upper transverse stretching rod and the lower transverse stretching rod rotate, one end of the upper transverse stretching rod and the lower transverse stretching rod can slide and adjust on the supporting groove to adapt to a new angle.
CN202011379000.9A 2020-12-01 2020-12-01 Production process of nano material modified polyolefin resin film Active CN112497696B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3240412A (en) * 1963-01-30 1966-03-15 Bayer Ag Arrangement for continuously handling moving tensioned webs of foil with flanged edges
DE1504126A1 (en) * 1960-12-24 1969-09-25 Dynamit Nobel Ag Process and device for continuous, simultaneous transverse and longitudinal stretching of thermoplastic films
JP2008030396A (en) * 2006-07-31 2008-02-14 Hitachi Plant Technologies Ltd Stretching machine of sheetlike article
CN101550251A (en) * 2009-05-14 2009-10-07 浙江富陵控股集团有限公司 Production technology of nanometer modified polyolefin resin film
CN202540729U (en) * 2012-04-13 2012-11-21 常德力元新材料有限责任公司 Equipment for performing continuous and adjustable lateral stretching on continuous thin sponge material
CN203077611U (en) * 2013-01-18 2013-07-24 浙江国泰密封材料股份有限公司 Variable track transverse drawing mechanism for preparing PTFE (Polytetrafluoroethylene) film
CN105291412A (en) * 2015-11-24 2016-02-03 桂林电器科学研究院有限公司 Film transverse stretching device for slit type air port plenum chamber
CN206140887U (en) * 2016-11-15 2017-05-03 北京化工大学 Film biaxial stretching device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504126A1 (en) * 1960-12-24 1969-09-25 Dynamit Nobel Ag Process and device for continuous, simultaneous transverse and longitudinal stretching of thermoplastic films
US3240412A (en) * 1963-01-30 1966-03-15 Bayer Ag Arrangement for continuously handling moving tensioned webs of foil with flanged edges
JP2008030396A (en) * 2006-07-31 2008-02-14 Hitachi Plant Technologies Ltd Stretching machine of sheetlike article
CN101550251A (en) * 2009-05-14 2009-10-07 浙江富陵控股集团有限公司 Production technology of nanometer modified polyolefin resin film
CN202540729U (en) * 2012-04-13 2012-11-21 常德力元新材料有限责任公司 Equipment for performing continuous and adjustable lateral stretching on continuous thin sponge material
CN203077611U (en) * 2013-01-18 2013-07-24 浙江国泰密封材料股份有限公司 Variable track transverse drawing mechanism for preparing PTFE (Polytetrafluoroethylene) film
CN105291412A (en) * 2015-11-24 2016-02-03 桂林电器科学研究院有限公司 Film transverse stretching device for slit type air port plenum chamber
CN206140887U (en) * 2016-11-15 2017-05-03 北京化工大学 Film biaxial stretching device

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