CN114055659A - Tear-resistant PVC material injection molding process for sole processing - Google Patents
Tear-resistant PVC material injection molding process for sole processing Download PDFInfo
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- CN114055659A CN114055659A CN202111350951.8A CN202111350951A CN114055659A CN 114055659 A CN114055659 A CN 114055659A CN 202111350951 A CN202111350951 A CN 202111350951A CN 114055659 A CN114055659 A CN 114055659A
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- 239000000463 material Substances 0.000 title claims abstract description 118
- 238000001746 injection moulding Methods 0.000 title claims abstract description 49
- 238000002156 mixing Methods 0.000 claims abstract description 139
- 238000003756 stirring Methods 0.000 claims description 44
- 239000000956 alloy Substances 0.000 claims description 31
- 229910045601 alloy Inorganic materials 0.000 claims description 31
- 238000000034 method Methods 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 16
- 239000000706 filtrate Substances 0.000 claims description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- WWNGFHNQODFIEX-UHFFFAOYSA-N buta-1,3-diene;methyl 2-methylprop-2-enoate;styrene Chemical compound C=CC=C.COC(=O)C(C)=C.C=CC1=CC=CC=C1 WWNGFHNQODFIEX-UHFFFAOYSA-N 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 239000012778 molding material Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
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- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 229920001897 terpolymer Polymers 0.000 claims description 3
- 239000001993 wax Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 2
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- 230000005540 biological transmission Effects 0.000 abstract description 5
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- 239000000047 product Substances 0.000 description 5
- 210000005077 saccule Anatomy 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
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- 230000008018 melting Effects 0.000 description 3
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Images
Classifications
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/24—Component parts, details or accessories; Auxiliary operations for feeding
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/26—Component parts, details or accessories; Auxiliary operations for discharging, e.g. doors
-
- 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
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
- B29B7/28—Component parts, details or accessories; Auxiliary operations for measuring, controlling or regulating, e.g. viscosity control
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a tearing-resistant PVC material injection molding process for sole processing, which belongs to the field of PVC material injection molding, and can realize that when materials are put into a mixing box for injection molding treatment, a rotating roller and a first rotating shaft are rotated through the transmission of a motor, the materials are stirred and fully mixed, so that the injection molding quality of the later-period materials is greatly improved after the materials are fully mixed, meanwhile, the materials are further mixed and stirred by the vibration device and the temperature rising device, the mixing efficiency of the materials is greatly promoted, and after the fixed time and the temperature of the mixed materials reach, the separating device deforms, the materials permeate and fall onto the homogenizing device for differentiation treatment, the working steps of later-stage workers are reduced, and therefore the working efficiency of the workers is improved.
Description
Technical Field
The invention relates to the field of PVC material injection molding, in particular to a tear-resistant PVC material injection molding process for sole processing.
Background
PVC is a heat sensitive material, and the injection molding manufacturability is poor because the PVC is easily decomposed due to the overhigh melting glue temperature or overlong heating time, so the control of the melting magnetic temperature is the key of the injection molding PVC product, the heat source for melting the PVC raw material comes from two aspects, namely the shearing heat of the plastic generated by the screw movement and the resistance wire heating of the cylinder shape, mainly shear heat of screw movement, external heating of the machine barrel mainly provides a heat source when the machine is started, because of the poor thermal conductivity of PVC, foreign plastics are heated during the heating process, however, the intermediate material is still in a condensed state, even the peripheral part is thermally decomposed, and the inside may have an unmelted part, so all the reasons need to be fully paid attention to product design, mold design, injection molding process, etc., and particularly, a special PVC injection molding machine of an excellent manufacturer needs to be selected to manufacture an ideal product.
At present, in the process of PVC material injection molding, products are generally processed and used after PVC materials are injected, the phenomenon that soles are torn after long-time use often occurs in the PVC material injection molding for sole processing in the prior art, so that the quality of the products is not good enough, and when the PVC materials for sole processing are generally injected, the phenomenon that the quality of the produced PVC materials is reduced or particles are remained due to the fact that the materials are not uniformly mixed in the mixing process or the stirring homogenization process can be caused, so that in the sole processing process, the phenomenon that soles are torn after being used for a period of time due to the fact that the quality of the soles is reduced due to the nonuniformity of mixed materials can be caused.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a tear-resistant PVC material injection molding process for sole processing, which can realize that when materials are put in a mixing box for injection molding treatment, a rotating roller and a first rotating shaft are caused to rotate through the transmission of a motor, the put materials are stirred and fully mixed, so that the injection molding quality of the later-stage materials is greatly improved after the materials are fully mixed, the first rotating shaft drives a first bevel gear below to rotate along with the first rotating shaft in the rotating process, so that two second bevel gears meshed with each other also rotate, the second rotating shaft and a mixing rod connected with the second rotating shaft are driven to rotate together, the materials put in the mixing box are further mixed and stirred, the efficiency of the materials in stirring and mixing is improved, and meanwhile, in the rotating process of the mixing rod, when the magnetic ball and the micro-magnetic coating are attached to vertically upwards 90 degrees, the magnetic ball falls to the inner bottom end of the mixing rod because the set magnetic force is smaller than the gravity of the gravity, the vibration generated by the falling drives the vibration particles in the inner cavity of the mixing rod to vibrate, and according to the resonance characteristic, a plurality of vibration particles continuously vibrate inside the mixing rod, so that the mixing rod vibrates the materials in the mixing box at the moment, the materials can be further stirred and vibrated in the mixing process, the mixing efficiency of the materials is promoted, meanwhile, the expansion rubber ball bag in the first rotating shaft also generates certain heat through collision friction in the rotating process, the expansion rubber ball bag is driven to expand, the through hole is not closed any more, the reduced iron powder at the moment is in contact with the external oxygen, the heat is generated intensively, and the materials mixed and stirred in the mixing box at the moment are influenced by the heat, the mixing and stirring are more sufficient, the quality of the PVC material after injection molding in the later stage is improved, when the material in the mixing box is heated in the mixing and stirring process, the heat is gradually increased, after the temperature in the mixing box is set according to the temperature of the material, the temperature of the deformation alloy plugging sheet is just at the critical point of the deformation alloy plugging sheet, so that the deformation alloy plugging sheet is deformed and is in an open-close state, the material starts to permeate from the inner wall of the deformation alloy plugging sheet, so that the material is collected, when the material falls from the deformation alloy plugging sheet, the material falls into a homogenizing funnel from the lower part of the mixing box, and the homogenizing distribution treatment is performed from the filter screen due to the arc-shaped angle of the homogenizing funnel, so that the material is orderly subjected to the homogenizing distribution treatment, the particles which can not be crushed after mixing and stirring are differentiated, so that the consistency of the mixed materials is kept, and the work efficiency and the quality of later-stage PVC material injection molding are improved.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A tearing-resistant PVC material injection molding process for sole processing comprises the following steps:
s1, adding PVC resin and a calcium/zinc composite heat stabilizer into a mixing device for oscillation treatment for 10-15 min;
s2, after the step S1 is finished, sequentially adding 25-35 parts by weight of methyl methacrylate-butadiene-styrene terpolymer, 10-15 parts by weight of polyacrylate, 7-12 parts by weight of stearic acid, 5-12 parts by weight of rutile titanium dioxide, 2-6 parts by weight of PE wax, 15-22 parts by weight of paraffin and 15-40 parts by weight of light calcium carbonate into a mixing device;
s3, mixing and uniformly stirring the components weighed in the S2, wherein the stirring temperature is 45-60 ℃, the stirring speed is 60-80 r/min, the stirring time is 5-10 h, and uniformly stirring to prepare a PVC mixture;
and S4, granulating the mixture obtained in the S3 to obtain the tear-resistant PVC injection molding material.
Further, the mixing device comprises the supporting frame, a mixing box is fixedly connected between the inner walls of the supporting frame, a homogenizing device is arranged at the lower side of the mixing box, a motor is installed at the outer end of the mixing box, a filling opening is formed in the upper end of the motor, a closed cover plate is rotatably connected to the upper end of the supporting frame, a filtrate plate is fixedly connected between the inner walls of the mixing box, filtrate is arranged in the filtrate plate, a rotating roller is installed at the upper end of the filtrate plate, a first rotating shaft is rotatably connected to the rotating roller, a heating device is arranged in the first rotating shaft, a first bevel gear is fixedly connected to the lower end of the first rotating shaft, two mutually symmetrical rotating grooves are formed in the outer end of the rotating roller, a second rotating shaft is rotatably connected between the inner walls of the rotating grooves, and a second bevel gear is fixedly connected to one end, close to the first rotating shaft, of the second rotating shaft, the second bevel gears are meshed with the first bevel gears, one end, far away from the first rotating shaft, of the second rotating shaft is fixedly connected with a mixing rod, a vibration device is arranged in the mixing rod, when materials are put into the mixing box for injection molding, the rotating roller and the first rotating shaft are caused to rotate through transmission of a motor, the materials are stirred and fully mixed, accordingly, the injection molding quality of the materials at the later stage is greatly improved after the materials are fully mixed, the first rotating shaft drives the first bevel gears below the first rotating shaft to rotate along with the first bevel gears in the rotating process, two second bevel gears meshed with each other are caused to rotate, the second rotating shaft and the mixing rod connected with the second rotating shaft are driven to rotate together, the materials put into the mixing box are further mixed and stirred, and the efficiency of the materials during stirring and mixing is improved.
Furthermore, the vibration device comprises vibration particles embedded in the inner cavity of the mixing rod, the inner wall of the mixing rod is fixedly connected with a micro-magnetic coating, a plurality of uniformly distributed magnetic balls are arranged in the mixing rod, when the mixing rod is driven by the second rotating shaft to rotate, the magnetic balls in the mixing rod have weak magnetism with the micro-magnetic coating, when the magnetic balls and the micro-magnetic coating are attached to vertically upwards 90 degrees in the rotating process of the mixing rod, the set magnetic force is smaller than the gravity of the gravity, the magnetic balls fall to the inner bottom end of the mixing rod, the vibration generated by falling drives the vibration particles in the inner cavity of the mixing rod to vibrate, and according to the characteristic of resonance, the vibration particles continuously vibrate in the mixing rod, so that the mixing rod vibrates the materials in the mixing box at the moment, and can further stir and vibrate in the mixing process, the mixing efficiency of the materials is promoted.
Further, the heating device comprises a waterproof breathable film embedded at the left end and the right end of the first rotating shaft, a plurality of expansion rubber saccules are arranged in the waterproof breathable film, a plurality of through holes which are uniformly distributed are drilled at the outer ends of the expansion rubber saccules, a deformable breathable film is fixedly connected between the inner walls of the through holes, reduced iron powder is filled in the inflatable rubber saccule, the expansion rubber saccule in the first rotating shaft generates certain heat by collision and friction in the rotating process of the first rotating shaft, the generated heat drives the expansion rubber saccule to expand, so that the through hole is not closed any more, the reduced iron powder is contacted with the external oxygen at the moment, the generation of heat is intensified, thereby cause the material that mixes the stirring this moment in the mixing box to receive thermal influence again, make its mix the stirring more abundant, improve the quality after later stage PVC material moulds plastics.
Further, separator includes a plurality of crisscross deformation alloy shutoff pieces that distribute of fixed connection between the dull and stereotyped inner wall of filtrating, the initial form of deformation alloy shutoff piece is the closed condition, material when the mixing box in is mixing the stirring heating process, because of the heat risees gradually, the staff can reach back mixing box internal temperature according to the churning time of material and lie in when many, set up the deformation temperature of deformation alloy shutoff piece, make deformation alloy shutoff piece reach the back at the time of mixing box mixing stirring, its inside temperature just is located the critical point of deformation alloy shutoff piece, thereby cause deformation alloy shutoff piece to take place deformation, the state of opening and shutting presents, make the material begin to permeate from deformation alloy shutoff piece inner wall, thereby collect.
Further, homogenizing device includes fixed connection's homogenization funnel between the braced frame inner wall, homogenization funnel is located the mixing box downside, fixedly connected with filter screen between the homogenization funnel inner wall, the filter screen downside is equipped with and receives the ware greatly, when the material falls from deformation alloy shutoff piece infiltration, thereby the material falls to the homogenization funnel in the mixing box below, and because of the curved angle of homogenization funnel, causes the orderly filter screen department of following of material to carry out the homogenization distribution and handles, will some particle differentiation that still can't pulverize after mixing and stirring come out, cause the material that mixes to keep the uniformity, improve the work efficiency and the quality that later stage PVC material was moulded plastics.
Further, a threaded hole is cut in the upper end of the first rotating shaft, a sealing cover is connected to the inner wall of the threaded hole in a threaded mode, a rotating block is fixedly connected to the upper end of the sealing cover, the expanded rubber ball bag can be replaced after reduced iron powder in the expanded rubber ball bag is consumed through the threaded hole, the sealing cover and the rotating block, the sealing cover is unscrewed, and the materials in the later period are mixed and stirred conveniently.
Further, closed apron upper end fixedly connected with handle, the handle height and closed apron thickness phase-match through setting up the handle, can be convenient for the staff to open closed apron, and under the same circumstances of height, closed apron rotates 180 and still presents the horizontal plane when placing on the compounding box surface simultaneously, makes the difficult adhesion of closed apron of gland packing mouth to external filth.
Further, mixing box inner wall is equipped with the polymer hydrophobic layer, through setting up the polymer hydrophobic layer at mixing box inner wall, can make the material in the mixing box stir the process back, is difficult for the wall built-up on mixing box, when causing later stage secondary mixing material, the staff is difficult for clearing up the debris in the mixing box in needs, improves staff's work efficiency.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
the scheme can realize that when materials are put in the mixing box for injection molding treatment, the rotating roller and the first rotating shaft are caused to rotate through the transmission of the motor to stir and fully mix the put materials, so that the injection molding quality of the later-stage materials is greatly improved after the materials are fully mixed, the first rotating shaft drives the first bevel gear below the first rotating shaft to rotate along with the first rotating shaft in the rotating process, so that the two second bevel gears which are meshed with each other are also caused to rotate, the second rotating shaft and the mixing rod connected with the second rotating shaft are driven to rotate together, the materials put in the mixing box are further mixed and stirred, the efficiency of the materials during stirring and mixing is improved, meanwhile, when the magnetic balls and the micro-magnetic coating are attached to the vertical upward 90 degrees in the rotating process of the mixing rod, the magnetic balls fall to the inner bottom end of the mixing rod because the set magnetic force is smaller than the gravity of the earth center, and the vibrations that drop the production are driving the vibrations particle in the compounding pole inner chamber and also take place vibrations, according to the characteristic of resonance, a plurality of vibrations particles are in the inside continuous vibrations of compounding pole, thereby cause the compounding pole to vibrate the material in the compounding box this moment and handle, make its in-process that mixes can further stirring and vibration, promote the mixing efficiency of material, simultaneously the inflation rubber sacculus in the first axis of rotation is also at rotatory in-process, collision friction produces certain heat, driving inflation rubber sacculus and taking place the inflation, cause the through-hole no longer to close, make the reduced iron powder at this moment contact with external oxygen, aggravate thermal production, thereby cause the material that mixes the stirring this moment in the compounding box to receive thermal influence again, make its mix the stirring more abundant, improve the quality after later stage PVC material is moulded plastics, when the material in the compounding box is in mixing stirring heating process, because the heat quantity is gradually increased, after the deformation temperature of the deformation alloy plugging sheet is set according to the temperature in the mixing box after the stirring time of the materials is reached, the deformation alloy plugging sheet is mixed and stirred in the mixing box after the deformation alloy plugging sheet reaches the time, the temperature inside the sealing device is just at the critical point of the deformation alloy sealing sheet, so that the deformation alloy sealing sheet is deformed and is in an opening and closing state, the material starts to permeate from the inner wall of the deformation alloy sealing sheet, thereby collecting the materials, when the materials are infiltrated and dropped from the deformation alloy plugging sheet, the materials are dropped into the homogenization funnel from the lower part of the mixing box, due to the arc angle of the homogenizing funnel, the materials are orderly subjected to homogenizing distribution treatment from the filter screen, and some particles which cannot be crushed after mixing and stirring are differentiated, so that the mixed materials are kept consistent, and the later-stage injection molding work efficiency and quality of the PVC material are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic structural view of a mixing box according to the present invention;
FIG. 3 is a schematic view of the internal structure of the rotating roller of the present invention;
FIG. 4 is a schematic view of the mixing rod of the present invention;
FIG. 5 is a schematic view of a first rotating shaft according to the present invention;
FIG. 6 is a schematic structural view of an inflated rubber balloon according to the present invention;
FIG. 7 is a diagram showing the change in morphology of a wrought alloy closure strip according to the present invention.
The reference numbers in the figures illustrate:
the device comprises a supporting frame 1, a mixing box 2, a motor 3, a filling port 4, a closing cover plate 5, a filtrate plate 6, a rotating roller 7, a first rotating shaft 8, a first bevel gear 9, a rotating groove 10, a second rotating shaft 11, a second bevel gear 12, a mixing rod 13, vibrating particles 14, a micro-magnetic coating 15, a magnetic ball 16, a waterproof and breathable film 17, an expanding rubber balloon 18, a through hole 19, reduced iron powder 20, a wrought alloy sealing sheet 21, a homogenizing funnel 22, a filter screen 23 and a containing vessel 24.
Detailed Description
The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
a tearing-resistant PVC material injection molding process for sole processing comprises the following steps:
s1, adding PVC resin and a calcium/zinc composite heat stabilizer into a mixing device for oscillation treatment for 10-15 min;
s2, after the step S1 is finished, sequentially adding 25-35 parts by weight of methyl methacrylate-butadiene-styrene terpolymer, 10-15 parts by weight of polyacrylate, 7-12 parts by weight of stearic acid, 5-12 parts by weight of rutile titanium dioxide, 2-6 parts by weight of PE wax, 15-22 parts by weight of paraffin and 15-40 parts by weight of light calcium carbonate into a mixing device;
s3, mixing and uniformly stirring the components weighed in the S2, wherein the stirring temperature is 45-60 ℃, the stirring speed is 60-80 r/min, the stirring time is 5-10 h, and uniformly stirring to prepare a PVC mixture;
and S4, granulating the mixture obtained in the S3 to obtain the tear-resistant PVC injection molding material.
Referring to fig. 1-3, the mixing device includes a supporting frame 1, a mixing box 2 is fixedly connected between inner walls of the supporting frame 1, a homogenizing device is disposed at a lower side of the mixing box 2, a motor 3 is mounted at an outer end of the mixing box 2, a filling opening 4 is drilled at an upper end of the motor 3, a closing cover plate 5 is rotatably connected at an upper end of the supporting frame 1, a filtrate plate 6 is fixedly connected between the inner walls of the mixing box 2, a rotary roller 7 is mounted at an upper end of the filtrate plate 6 in the filtrate plate 6, a first rotary shaft 8 is rotatably connected to the rotary roller 7, a temperature raising device is disposed in the first rotary shaft 8, a first bevel gear 9 is fixedly connected at a lower end of the first rotary shaft 8, two symmetrical rotary grooves 10 are drilled at an outer end of the rotary roller 7, a second rotary shaft 11 is rotatably connected between inner walls of the rotary grooves 10, and a second bevel gear 12 is fixedly connected at an end of the second rotary shaft 11 close to the first rotary shaft 8, the second bevel gear 12 is meshed with the first bevel gear 9, one end of the second rotating shaft 11 far away from the first rotating shaft 8 is fixedly connected with a mixing rod 13, a vibrating device is arranged in the mixing rod 13, when the materials are put into the mixing box 2 for injection molding treatment, the rotating roller 7 and the first rotating shaft 8 are caused to rotate through the transmission of the motor, the materials are stirred and fully mixed, so that the injection molding quality of the later-period materials is greatly improved after the materials are fully mixed, the first rotating shaft 8 drives the lower first bevel gear 9 to rotate along with the first rotating shaft in the rotating process, thereby causing the two second bevel gears 12 which are meshed with each other to rotate, driving the second rotating shaft 11 and the mixing rod 13 connected with the second rotating shaft to rotate together, at this moment, the materials put into the mixing box 2 are further mixed and stirred, and the efficiency of the materials in stirring and mixing is improved.
Referring to fig. 4, the vibration device includes vibration particles 14 embedded in the inner cavity of the mixing rod 13, a micro-magnetic coating 15 is fixedly connected to the inner wall of the mixing rod 13, a plurality of uniformly distributed magnetic balls 16 are disposed in the mixing rod 13, when the mixing rod 13 is driven by the second rotating shaft 11 to rotate, the magnetic balls 16 inside the mixing rod 13 have weak magnetism with the micro-magnetic coating 15, when the mixing rod 13 rotates, the magnetic balls 16 and the micro-magnetic coating 15 are attached to the vertical upward 90 degrees, the magnetic force is smaller than the gravity of the gravity, at this time, the magnetic balls 16 fall to the inner bottom end of the mixing rod 13, and the vibration generated by the falling drives the vibration particles 14 in the inner cavity of the mixing rod 13 to vibrate, and according to the resonance characteristic, the plurality of vibration particles 14 continuously vibrate inside the mixing rod 13, so that the mixing rod 13 vibrates the material in the mixing box 2, the stirring and the vibration can be further performed in the mixing process, and the mixing efficiency of the materials is promoted.
Referring to fig. 5-6, the warming device includes a waterproof breathable film 17 embedded at the left and right ends of a first rotating shaft 8, a plurality of expandable rubber balloons 18 are disposed in the waterproof breathable film 17, a plurality of uniformly distributed through holes 19 are chiseled at the outer ends of the expandable rubber balloons 18, a deformable breathable film is fixedly connected between the inner walls of the through holes 19, reduced iron powder 20 is filled in the expandable rubber balloons 18, and the expandable rubber balloons 18 in the first rotating shaft 8 generate a certain amount of heat by collision and friction during the rotation of the first rotating shaft 8, and the generated heat drives the expandable rubber balloons 18 to expand, so that the through holes 19 are not closed again, the reduced iron powder 20 at this time is in contact with external oxygen, and the generation of heat is intensified, so that the materials mixed and stirred in the mixing box 2 at this time are affected by heat, and the mixing and stirring are more sufficient, the quality of the later-stage PVC material after injection molding is improved.
Referring to fig. 7, the separating device includes a plurality of deformation alloy plugging pieces 21 which are fixedly connected between the inner walls of the filtrate flat plate 6 and are distributed in a staggered manner, the initial shape of the deformation alloy plugging pieces 21 is a closed state, when the materials in the mixing box 2 are heated in a mixing and stirring process, the heat gradually rises, and the worker can set the deformation temperature of the deformation alloy plugging pieces 21 according to how much the temperature in the mixing box 2 is when the stirring time of the materials reaches, so that the temperature inside the deformation alloy plugging pieces 21 is just at the critical point of the deformation alloy plugging pieces 21 after the mixing and stirring time of the mixing box 2 reaches, and the deformation alloy plugging pieces 21 are deformed to be in an open-close state, so that the materials start to permeate from the inner walls of the deformation alloy plugging pieces 21, and are collected.
Referring to fig. 1, the homogenizing device includes a homogenizing funnel 22 fixedly connected between inner walls of the supporting frame 1, the homogenizing funnel 22 is located at a lower side of the mixing box 2, a filter screen 23 is fixedly connected between inner walls of the homogenizing funnel 22, a container 24 is disposed at a lower side of the filter screen 23, when the material falls through the deformable alloy plugging sheet 21, the material falls into the homogenizing funnel 22 from a lower side of the mixing box 2, and due to an arc angle of the homogenizing funnel 22, the material is subjected to homogenizing distribution treatment from the filter screen 23 in order, particles which cannot be crushed after mixing and stirring are differentiated, so that the mixed material is kept consistent, and the work efficiency and quality of later-stage PVC material injection molding are improved.
Referring to fig. 5, a threaded hole is drilled in the upper end of the first rotating shaft 8, a sealing cover is in threaded connection with the inner wall of the threaded hole, a rotating block is fixedly connected to the upper end of the sealing cover, and by means of the threaded hole, the sealing cover and the rotating block, after the reduced iron powder 20 in the expanded rubber balloon 18 is consumed, the expanded rubber balloon 18 can be replaced by unscrewing the sealing cover, so that later-stage material mixing and stirring are facilitated.
Please refer to fig. 1, the handle is fixedly connected to the upper end of the closed cover plate 5, the handle height is matched with the thickness of the closed cover plate 5, through setting up the handle, the worker can open the closed cover plate 5 conveniently, meanwhile, under the condition of the same height, the closed cover plate 5 rotates 180 degrees and is still present a horizontal plane when being placed on the surface of the mixing box 2, the closed cover plate 5 of the sealing and filling port 4 is not easy to adhere to external dirt, the inner wall of the mixing box 2 is provided with a polymer hydrophobic layer, through setting up the polymer hydrophobic layer on the inner wall of the mixing box 2, the material in the mixing box 2 can be stirred, the wall is not easy to hang on the mixing box 2, when the secondary mixed material in the later stage is caused, the worker is not easy to clean up the sundries in the mixing box 2, and the working efficiency of the worker is improved.
The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.
Claims (9)
1. A PVC material injection molding process for processing tear-resistant soles is characterized in that: the method comprises the following steps:
s1, adding PVC resin and a calcium/zinc composite heat stabilizer into a mixing device for oscillation treatment for 10-15 min;
s2, after the step S1 is finished, sequentially adding 25-35 parts by weight of methyl methacrylate-butadiene-styrene terpolymer, 10-15 parts by weight of polyacrylate, 7-12 parts by weight of stearic acid, 5-12 parts by weight of rutile titanium dioxide, 2-6 parts by weight of PE wax, 15-22 parts by weight of paraffin and 15-40 parts by weight of light calcium carbonate into a mixing device;
s3, mixing and uniformly stirring the components weighed in the S2, wherein the stirring temperature is 45-60 ℃, the stirring speed is 60-80 r/min, the stirring time is 5-10 h, and uniformly stirring to prepare a PVC mixture;
and S4, granulating the mixture obtained in the S3 to obtain the tear-resistant PVC injection molding material.
2. The PVC material injection molding process for processing the tear-resistant sole according to claim 1, characterized in that: the mixing device comprises a supporting frame (1), a mixing box (2) is fixedly connected between the inner walls of the supporting frame (1), a homogenizing device is arranged on the lower side of the mixing box (2), a motor (3) is installed at the outer end of the mixing box (2), a filling opening (4) is formed in the upper end of the motor (3), a closed cover plate (5) is rotatably connected to the upper end of the supporting frame (1), a filtrate flat plate (6) is fixedly connected between the inner walls of the mixing box (2), filtrate is arranged in the filtrate flat plate (6), a rotating roller (7) is installed at the upper end of the filtrate flat plate (6), a first rotating shaft (8) is rotatably connected to the rotating roller (7), a heating device is arranged in the first rotating shaft (8), a first bevel gear (9) is fixedly connected to the lower end of the first rotating shaft (8), two mutually symmetrical rotating grooves (10) are formed in the outer end of the rotating roller (7), rotate between groove (10) inner wall and be connected with second axis of rotation (11) in the rotation, second axis of rotation (11) are close to one end fixedly connected with second bevel gear (12) of first axis of rotation (8), second bevel gear (12) and first bevel gear (9) intermeshing, the one end fixedly connected with material mixing rod (13) of first axis of rotation (8) are kept away from in second axis of rotation (11), be equipped with vibrator in material mixing rod (13).
3. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the vibrating device comprises vibrating particles (14) embedded in an inner cavity of a mixing rod (13), a micro-magnetic coating (15) is fixedly connected to the inner wall of the mixing rod (13), and a plurality of uniformly distributed magnetic balls (16) are arranged in the mixing rod (13).
4. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the warming device comprises a first rotating shaft (8), a waterproof breathable film (17) is embedded at the left end and the right end of the first rotating shaft, a plurality of expansion rubber ball bags (18) are arranged in the waterproof breathable film (17), a plurality of uniformly distributed through holes (19) are formed in the outer ends of the expansion rubber ball bags (18), deformation breathable films are fixedly connected between the inner walls of the through holes (19), and reduced iron powder (20) is filled in the expansion rubber ball bags (18).
5. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the separation device comprises a plurality of deformation alloy plugging sheets (21) which are distributed in a staggered manner and fixedly connected between the inner walls of the filtrate flat plates (6).
6. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the homogenizing device comprises a homogenizing funnel (22) fixedly connected between the inner walls of the supporting frame (1), the homogenizing funnel (22) is positioned at the lower side of the mixing box (2), a filter screen (23) is fixedly connected between the inner walls of the homogenizing funnel (22), and a containing vessel (24) is arranged at the lower side of the filter screen (23).
7. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: a threaded hole is formed in the upper end of the first rotating shaft (8), a sealing cover is connected to the inner wall of the threaded hole in a threaded mode, and a rotating block is fixedly connected to the upper end of the sealing cover.
8. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the handle is fixedly connected to the upper end of the closed cover plate (5), and the height of the handle is matched with the thickness of the closed cover plate (5).
9. The injection molding process of the PVC material for processing the tear-resistant sole according to claim 2, wherein the injection molding process comprises the following steps: the inner wall of the mixing box (2) is provided with a polymer hydrophobic layer.
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