CN109265807B - Raw material particle formula of PE film and production method - Google Patents
Raw material particle formula of PE film and production method Download PDFInfo
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- CN109265807B CN109265807B CN201811400729.2A CN201811400729A CN109265807B CN 109265807 B CN109265807 B CN 109265807B CN 201811400729 A CN201811400729 A CN 201811400729A CN 109265807 B CN109265807 B CN 109265807B
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- 239000002994 raw material Substances 0.000 title claims abstract description 95
- 239000002245 particle Substances 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000002985 plastic film Substances 0.000 claims abstract description 11
- 229920006255 plastic film Polymers 0.000 claims abstract description 11
- 238000005057 refrigeration Methods 0.000 claims abstract description 9
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000010096 film blowing Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 42
- 238000005192 partition Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 abstract description 28
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract description 8
- 239000000919 ceramic Substances 0.000 abstract description 7
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003963 antioxidant agent Substances 0.000 abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002861 polymer material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 4
- 230000003064 anti-oxidating effect Effects 0.000 description 3
- 230000003078 antioxidant effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 239000003674 animal food additive Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
-
- 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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/07—Aldehydes; Ketones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention relates to the technical field of high polymer materials, and discloses a raw material particle formula of a PE film, which is characterized in that: the method comprises the following raw materials: PE, antioxidants, ceramic particles, calcium carbonate, rutile particles, glycerol, glutaraldehyde; and a method for producing raw material particles of a PE film, comprising the steps of: a raw material particle production device is needed, raw materials enter the box body from the feeding hole, and the raw materials are cut into raw material strips through the vertical blocks; the raw material strips can be continuously cooled by a circulating refrigeration system in the vertical block; carrying out intermittent cutting treatment on the raw material strips by using a cutter to obtain raw material particles; and putting the raw material particles into a plastic film blowing machine for production to obtain the PE film. The scheme mainly solves the problems that the heat resistance and the tensile strength of the conventional PE film are not good and the production efficiency of the PE film is low.
Description
Technical Field
The invention relates to the technical field of high polymer materials.
Background
The yield of Chinese plastic films accounts for about 20% of the total yield of plastic products, and is one of the categories of plastic products with faster yield increase. From the application field of Chinese plastic films, the plastic film has the largest dosage, the largest variety and the widest application, and is in the packaging industry, the consumption of the plastic film accounts for about 2/3, the agriculture accounts for about 30%, and functional films such as microporous films, shielding films, geomembranes and the like are used.
The most commonly used plastic films are polyethylene films, i.e., PE films; the PE film has the advantages of moisture resistance and small moisture permeability; the PE film can be used for manufacturing products with different properties such as low density, medium density and high density according to different manufacturing methods and control means. At present, the heat resistance and the tensile strength of the PE film are not good and need to be optimized; in addition, the production of the PE film needs to be carried out through the processes of water cooling, air drying, grain cutting and the like, and each process needs to be processed by corresponding equipment, namely the equipment needs to be replaced from the previous process to the next process, so that the production flow of the PE film is prolonged, and the production efficiency of the PE film is further reduced.
Disclosure of Invention
The invention aims to provide a raw material particle formula of a PE film, so as to solve the problem that the conventional PE film is poor in heat resistance and tensile strength.
In order to achieve the above object, the basic scheme of the invention is as follows: the raw material particle formula of the PE film comprises the following raw materials in parts by weight: the anti-oxidation coating comprises, by weight, 60-85 parts of PE, 10-30 parts of an antioxidant, 10-30 parts of ceramic particles, 15-50 parts of ceramic particles, 10-15 parts of calcium carbonate, 30-65 parts of rutile particles, 10-30 parts of glycerol and 4-10 parts of glutaraldehyde.
The advantages of the basic scheme are: the PE film in the scheme has excellent strength and heat resistance, and is safe and environment-friendly; in addition, the raw materials used in the scheme are cheap and cheap, so that the production cost is low.
Further, the feed additive is prepared from the following raw materials in parts by weight: the anti-oxidation coating comprises, by weight, 70 parts of PE, 20 parts of an antioxidant, 25 parts of ceramic particles, 35 parts of ceramic particles, 10 parts of calcium carbonate, 45 parts of rutile particles, 20 parts of glycerol and 8 parts of glutaraldehyde.
The invention also aims to provide a production method of raw material particles of the PE film, so as to solve the problem of low production efficiency of the conventional PE film due to long production process.
In order to achieve the above object, the basic scheme of the invention is as follows: a production method of raw material particles of PE films comprises the following steps:
(1) a raw material particle production device is required to be used, all the components are weighed according to the weight part ratio and put into a reaction kettle, the heating reaction is carried out in the nitrogen atmosphere, and then the raw materials are sent into an extruder and extruded;
(2) raw materials enter the box body from the feeding hole and are cut into raw material strips through the vertical blocks;
(3) continuously cooling the raw material strips through a circulating refrigeration system in the vertical block;
(4) carrying out intermittent cutting treatment on the raw material strips by using a cutter to obtain raw material particles;
(5) and putting the raw material particles into a plastic film blowing machine for production to obtain the PE film.
The advantages of the basic scheme are:
1. this scheme has slitting, refrigeration, cuts grain three kinds of functions simultaneously, compares in the production method of present PE film, has reached the effect of three equipment through a device, has shortened the process time from last process to next process in the three process, has effectively improved the production efficiency of PE film.
2. Vertical piece can cut into the raw materials strip with the raw materials in this scheme, can also realize the cooling process to the raw materials strip through the circulation refrigerating system in vertical piece, realizes that a thing is dual-purpose, and the practicality is strong.
3. The technical scheme is simple in process, convenient to operate, easy to industrially implement and capable of being produced by a common plastic film blowing machine.
Further, when the circulating refrigeration system continuously cools the raw material strips in the step (3), the circulating refrigeration system can intermittently impact the vertical blocks. Through the arrangement, the vertical blocks vibrate through intermittent impact on the vertical blocks, and raw material strips are prevented from being adhered to the vertical blocks.
Further, the raw material particles obtained in the step (4) are sieved by a sieve which horizontally reciprocates. Through the arrangement, the raw material particles can be prevented from being adhered to the screen, and the blockage of the screen due to the accumulation of the raw material particles can be avoided.
Drawings
FIG. 1 is a schematic view of an embodiment of a raw material particle production apparatus according to the present invention;
FIG. 2 is a structural cross-sectional view of a vertical block;
fig. 3 is a partial cross-sectional view of a water tube.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a box body 1, a partition plate 2, a through hole 3, a baffle plate 4, a feed inlet 5, a feed pipeline 6, a vertical block 7, a triangular block 8, a chamber 9, a push rod 10, a spring 11, a return channel 12, a suction pump 13, a refrigerator 14, an upper opening 15, a lower opening 16, a water pipe 17, a support rod 18, a swing arm 19, an auxiliary shaft 20, an impeller 21, a cam 22, a motor 23, a first support shaft 24, a sector gear 25, a driven gear 26, a cutter 27, a rack 28, a second support shaft 29, a belt 30, a disc 31, a linkage arm 32, a chute 33, a screen 34, a discharge port 35 and a sealing cover 36.
Examples
Substantially as shown in figures 1, 2 and 3: the raw material particle production device comprises a base, wherein a box body 1 is arranged on the base; the middle part in the box body 1 is welded with a partition plate 2, and a plurality of through holes 3 are transversely arranged on the partition plate 2 at equal intervals; a baffle plate 4 is connected to the side wall of the box body 1 in a sliding mode, the baffle plate 4 is located above the partition plate 2, and the baffle plate 4 can seal the through hole 3.
A feed port 5 is formed in the top of the box body 1, and the feed port 5 is rectangular; the feed inlet 5 is welded with a tapered feed pipeline 6, namely the width of the feed pipeline 6 is gradually reduced from top to bottom. A plurality of vertical blocks 7 are equidistantly arranged on the side wall of the box body 1, and the vertical blocks 7 are positioned above the partition plate 2; the through hole 3 is positioned between two adjacent vertical blocks 7; the top of every vertical piece 7 all welds and has three hornblocks 8, and three hornblocks 8's width is from last to increasing gradually down.
A cavity 9 is formed in the vertical block 7, a push rod 10 extending into the cavity 9 is vertically connected to the top of the triangular block 8 in a sliding mode, and a spring 11 is fixedly connected between the push rod 10 and the top of the cavity 9; a return channel 12 is formed in the push rod 10, and a suction pump 13 and a refrigerator 14 are sequentially arranged in the return channel 12 from top to bottom; both sides of the push rod 10 are provided with an upper opening 15 and a lower opening 16 which are communicated with the return channel 12, and the two upper openings 15 are positioned above the two lower openings 16. The inner walls of the two sides of the cavity 9 are respectively provided with a water pipe 17 made of steel and abutted against the inner wall of the cavity 9, and the water pipe 17 is filled with clear water; the two ends of the water pipe 17 are all arranged against the push rod 10, and the two ends of the water pipe 17 are located on the movement tracks of the upper opening 15 and the lower opening 16.
Vertical equidistance welding has a plurality of bracing pieces 18 on the inner wall of water pipe 17, and the top of every bracing piece 18 articulates there is swing arm 19, and the interval at 19 left ends of swing arm and 18 tops of bracing piece is greater than the interval at 19 right-hand members of swing arm and 18 tops of bracing piece for swing arm 19's initial condition does: inclining from left to right; a plurality of auxiliary shafts 20 are vertically and rotationally connected to the inside of the water pipe 17 at equal intervals, and the auxiliary shafts 20 are positioned between two adjacent support rods 18; each auxiliary shaft 20 is connected with an impeller 21 and a cam 22, and the cam 22 is abutted to the swing arm 19; when the convex portion of the cam 22 presses the left end of the swing arm 19, the right end of the swing arm 19 can hit the wall of the water pipe 17.
The base is provided with a motor 23 and a first supporting shaft 24, and an output shaft of the motor 23 is connected with a sector gear 25; a driven gear 26 meshed with the sector gear 25 is rotatably connected to the first support shaft 24, and a torsion spring is fixedly connected between the driven gear 26 and the first support shaft 24; a cutter 27 is slidably connected to the right side wall of the box 1, and a rack 28 engaged with the driven gear 26 is fixedly connected to the right end of the cutter 27.
A second support shaft 29 is rotatably connected to the base, and a belt 30 is sleeved between the second support shaft 29 and an output shaft of the motor 23; a disc 31 is connected to the second support shaft 29, and a linkage arm 32 is hinged to the eccentric position of the disc 31; a sliding chute 33 is transversely arranged on the inner wall of the left side of the box body 1, and a screen 34 is connected in the sliding chute 33 in a sliding way; the right end of the screen 34 passes through the right side wall of the box body 1, and the right end of the screen 34 is hinged with the linkage arm 32.
A discharge port 35 is formed at the bottom of the box body 1, and a sealing cover 36 is connected to the discharge port 35 in a threaded manner.
The production method of raw material particles for PE film requires the use of the above-described raw material particle production apparatus.
The raw material particle formula of the PE film is prepared from the following raw materials in parts by weight: the anti-oxidation coating comprises, by weight, 70 parts of PE, 20 parts of an antioxidant, 25 parts of ceramic particles, 35 parts of ceramic particles, 10 parts of calcium carbonate, 45 parts of rutile particles, 20 parts of glycerol and 8 parts of glutaraldehyde.
A production method of raw material particles of PE films comprises the following steps:
(1) weighing the components according to the weight part ratio, putting the components into a reaction kettle, heating the components in a nitrogen atmosphere for reaction, and then sending the components into an extruder to extrude raw materials;
(2) raw materials enter the box body 1 from the feeding hole 5 and are cut into raw material strips through the vertical block 7;
(3) the raw material strips can be continuously cooled through a circulating refrigeration system in the vertical blocks 7, and meanwhile, the vertical blocks 7 can be intermittently impacted to enable the vertical blocks 7 to vibrate, so that the raw material strips are prevented from being adhered to the vertical blocks 7;
(4) carrying out intermittent cutting treatment on the raw material strips by using a cutter 27 to obtain raw material particles; the raw material particles are screened by the screen 34 which horizontally reciprocates, so that the raw material particles can be prevented from being adhered to the screen 34, and the blockage of the screen 34 caused by the accumulation of the raw material particles can be avoided;
(5) and putting the raw material particles into a plastic film blowing machine for production to obtain the PE film.
The specific working principle of processing the raw materials in the steps (1) to (5) by adopting the raw material particle production device is as follows:
weighing the components according to the weight part ratio, putting the components into a reaction kettle, heating and reacting the components in a nitrogen atmosphere, then sending the components into a double-screw extruder, and dropping the extruded raw materials into a feeding pipeline 6.
The raw materials move to the direction of the feed port 5 intensively under the action of the feed pipeline 6, and the raw materials are in a plate shape under the action of the feed port 5; the raw material is cut under the action of the triangular block 8 to obtain raw material strips, and the raw material strips are cooled by clean water in the water pipe 17, so that the temperature of the clean water rises to obtain warm water.
When the raw material is cut by the triangular block 8, the weight of the raw material extrudes the push rod 10 to move downwards, so that the upper opening 15 on the push rod 10 is communicated with the upper end of the water pipe 17, and the lower opening 16 on the push rod 10 is communicated with the lower end of the water pipe 17; starting the suction pump 13 and the refrigerator 14, sucking warm water in the water pipe 17 into the return channel 12 by the suction force of the suction pump 13, and cooling the warm water by the refrigerator 14 to obtain cold water; and the cold water moves into the water pipe 17 through the return passage 12, and then the raw material is cooled by the cold water, so that the raw material strips are continuously cooled circularly, and the dry raw material strips are obtained.
The impeller 21 is driven to rotate in the process that water flow circulates in the water pipe 17 and the return pipe, and the impeller 21 drives the cam 22 to rotate through the auxiliary shaft 20; the left end of the swing arm 19 is extruded through the convex part of the cam 22, so that the swing arm 19 rotates, the right end of the swing arm 19 impacts the pipe wall of the water pipe 17, the pipe wall of the water pipe 17 is vibrated, and the vertical block 7 is driven to vibrate through the water pipe 17; water flow circulates in the water pipe 17 and the return pipe, so that the raised part of the cam 22 intermittently extrudes the swing arm 19 to impact the pipe wall of the water pipe 17, namely the water pipe 17 generates intermittent vibration; because water pipe 17 pastes with vertical piece 7 mutually, and then drives vertical piece 7 and produce intermittent vibration, can avoid the raw materials strip in the in-process of cooling and vertical piece 7 adhesion together.
After the raw material strip is cooled, the shielding plate 4 is taken out of the side wall of the box body 1, namely the shielding plate 4 disappears for sealing the through hole 3, so that the through hole 3 is vertically opposite to the raw material strip. Starting the motor 23, wherein an output shaft of the motor 23 drives the sector gear 25 to rotate, so that the sector gear 25 is intermittently meshed with the driven gear 26; when the sector gear 25 is meshed with the driven gear 26, the sector gear 25 drives the driven gear 26 to rotate, the driven gear 26 drives the rack 28 and the cutter 27 to move from right to left, namely, the cutter 27 is used for cutting the raw material strips to obtain raw material particles; when the sector gear 25 is not meshed with the driven gear 26, the driven gear 26 is reset under the action of the torsion spring, namely the driven gear 26 drives the rack 28 and the cutter 27 to reset; namely, the intermittent meshing of the sector gear 25 and the driven gear 26 can realize the intermittent cutting of the raw material strip by the cutter 27, and the raw material particles are obtained.
The cut raw material particles fall onto the screen 34, the output shaft of the motor 23 can drive the second support shaft 29 to rotate through the belt 30, and the second support shaft 29 drives the disc 31 to rotate; the rotating disc 31 drives the screen 34 to reciprocate along the horizontal direction of the path of the chute 33 through the linkage arm 32, raw material particles can be prevented from being adhered to the screen 34 through the reciprocating motion of the screen 34 in the horizontal direction, the raw material particles can be prevented from being stacked together to cause the blockage of the screen 34, the raw material particles can be screened through the screen 34, the raw material particles with unqualified sizes are blocked on the screen 34, and the raw material particles with qualified sizes can pass through the screen 34 to be collected to the bottom of the box body 1.
When the raw material particles are needed, the sealing cover 36 is taken down from the discharge hole 35 to obtain the product; and putting the raw material particles into a plastic film blowing machine for production to obtain the PE film.
The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (3)
- A method for producing raw material particles for PE films, characterized by: the method comprises the following steps:(1) the raw material particle production device comprises a base, wherein a box body is arranged on the base; the middle part in the box body is welded with a partition plate, and a plurality of through holes are formed in the partition plate at equal intervals in the transverse direction; the side wall of the box body is connected with a baffle plate in a sliding manner, the baffle plate is positioned above the partition plate, and the baffle plate can seal the through hole;the top of the box body is provided with a feed inlet which is rectangular; a tapered feeding pipeline is welded on the feeding hole, namely the width of the feeding pipeline is gradually reduced from top to bottom; a plurality of vertical blocks are arranged on the side wall of the box body at equal intervals and positioned above the partition plate; the through hole is positioned between two adjacent vertical blocks; the top of each vertical block is welded with a triangular block, and the width of the triangular block is gradually increased from top to bottom;a cavity is formed in the vertical block, the top of the triangular block is vertically and slidably connected with a push rod extending into the cavity, and a spring is fixedly connected between the push rod and the top of the cavity; a return channel is formed in the push rod, and a suction pump and a refrigerator are sequentially arranged in the return channel from top to bottom; both sides of the push rod are provided with an upper opening and a lower opening which are communicated with the return channel, and the two upper openings are positioned above the two lower openings; the inner walls of the two sides of the cavity are respectively provided with a water pipe made of steel and abutted against the inner wall of the cavity, and the water pipe is filled with clear water; both ends of the water pipe are abutted against the push rod, and both ends of the water pipe are positioned on the movement tracks of the upper opening and the lower opening;vertical equidistance welding has a plurality of bracing pieces on the inner wall of water pipe, and the top of every bracing piece articulates there is the swing arm, and the interval at swing arm left end and bracing piece top is greater than the interval at swing arm right-hand member and bracing piece top for the initial condition of swing arm does: inclining from left to right; a plurality of auxiliary shafts are vertically and rotationally connected to the inner part of the water pipe at equal intervals, and the auxiliary shafts are positioned between two adjacent supporting rods; each auxiliary shaft is connected with an impeller and a cam, and the cam is abutted to the swing arm; when the convex part of the cam extrudes the left end of the swing arm, the right end of the swing arm can impact the pipe wall of the water pipe;the motor and the first supporting shaft are arranged on the base, and the output shaft of the motor is connected with a sector gear; a driven gear meshed with the sector gear is rotatably connected to the first support shaft, and a torsion spring is fixedly connected between the driven gear and the first support shaft; a cutter is connected to the right side wall of the box body in a sliding manner, and a rack meshed with the driven gear is fixedly connected to the right end of the cutter;a second supporting shaft is rotatably connected to the base, and a belt is sleeved between the second supporting shaft and an output shaft of the motor; a disc is connected to the second supporting shaft, and a linkage arm is hinged to the eccentric position of the disc; a sliding chute is transversely arranged on the inner wall of the left side of the box body, and a screen is connected in the sliding chute in a sliding manner; the right end of the screen penetrates through the right side wall of the box body, and the right end of the screen is hinged with the linkage arm;a discharge port is formed in the bottom of the box body, and a sealing cover is connected to the discharge port in a threaded manner;weighing the components according to the weight part ratio, putting the components into a reaction kettle, heating the components in a nitrogen atmosphere for reaction, and then sending the components into an extruder to extrude raw materials;(2) raw materials enter the box body from the feeding hole and are cut into raw material strips through the vertical blocks;(3) continuously cooling the raw material strips through a circulating refrigeration system in the vertical block;(4) carrying out intermittent cutting treatment on the raw material strips by using a cutter to obtain raw material particles;(5) and putting the raw material particles into a plastic film blowing machine for production to obtain the PE film.
- 2. The production method of raw material particles of PE film according to claim 1, characterized in that: and (4) when the circulating refrigeration system continuously cools the raw material strips in the step (3), the circulating refrigeration system can intermittently impact the vertical blocks.
- 3. The production method of raw material particles of PE film according to claim 2, characterized in that: and (4) screening the raw material particles obtained in the step (4) through a screen in horizontal reciprocating motion.
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