CN112094486A - Environment-friendly degradable plastic cup and processing injection molding process thereof - Google Patents
Environment-friendly degradable plastic cup and processing injection molding process thereof Download PDFInfo
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- CN112094486A CN112094486A CN202010827646.2A CN202010827646A CN112094486A CN 112094486 A CN112094486 A CN 112094486A CN 202010827646 A CN202010827646 A CN 202010827646A CN 112094486 A CN112094486 A CN 112094486A
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 37
- 229920006238 degradable plastic Polymers 0.000 title claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 229920003023 plastic Polymers 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 16
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001634 Copolyester Polymers 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 8
- 229920002472 Starch Polymers 0.000 claims abstract description 8
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims abstract description 8
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- 239000008107 starch Substances 0.000 claims abstract description 8
- 235000019698 starch Nutrition 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 6
- 231100000252 nontoxic Toxicity 0.000 claims abstract description 6
- 230000003000 nontoxic effect Effects 0.000 claims abstract description 6
- 239000005014 poly(hydroxyalkanoate) Substances 0.000 claims abstract description 6
- 229920000903 polyhydroxyalkanoate Polymers 0.000 claims abstract description 6
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Natural products O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 4
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 4
- 239000003504 photosensitizing agent Substances 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 58
- 238000003756 stirring Methods 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000006731 degradation reaction Methods 0.000 abstract description 2
- -1 polyethylene Polymers 0.000 abstract description 2
- 229920000573 polyethylene Polymers 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of plastic cup processing, and particularly discloses an environment-friendly degradable plastic cup and a processing injection molding process thereof, which are characterized by comprising the following components in parts by mass: 20-22 parts of polyvinyl alcohol, 16-20 parts of starch, 22-24 parts of polyhydroxyalkanoate, 12-15 parts of aliphatic aromatic copolyester, 8-10 parts of nontoxic mixed fiber, 11-14 parts of photosensitizer, 1-3 parts of defoaming agent and 1-3 parts of carbon dioxide copolymer; the aliphatic aromatic copolyester comprises 2-5 parts of oxalic acid, 4-6 parts of terephthalic acid and 4-6 parts of 1, 4-butanediol by mass; the main raw materials of the environment-friendly degradable plastic cup prepared by the invention are polyvinyl alcohol, starch and polyhydroxyalkanoate, the polyvinyl alcohol is easier to degrade than polyethylene, and the stability can be further reduced and the degradation rate can be accelerated after the starch and the nontoxic mixed fiber are added.
Description
Technical Field
The invention relates to the technical field of plastic cup processing, in particular to an environment-friendly degradable plastic cup and a processing injection molding process thereof.
Background
The plastic products are the general name of articles for daily use, industry and the like which are processed by adopting plastics as main raw materials. Including products of all processes of injection molding, plastic uptake and the like which take plastics as raw materials. Plastics are plastic synthetic polymer materials, and form three essential synthetic materials in daily life together with synthetic rubber and synthetic fiber. Specifically, the plastic is a material which is prepared by using natural or synthetic resin as a main component, adding various additives, and molding into a certain shape under certain conditions such as temperature and pressure, and the shape is kept unchanged at normal temperature.
The plastic products can enable people to live more conveniently to a great extent, but most of the traditional plastic cups are prepared by blending high polymers such as PE, PVC, PP, PS and the like through operations such as extrusion molding, mould pressing, inflation and the like, the traditional plastic cups cannot be degraded in the natural world, and a large amount of harmful gas is generated if manual incineration treatment is carried out, so that an environment-friendly degradable plastic cup is needed.
Disclosure of Invention
The invention aims to provide an environment-friendly degradable plastic cup and a processing injection molding process thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an environment-friendly degradable plastic cup comprises the following components in parts by mass: 20-22 parts of polyvinyl alcohol, 16-20 parts of starch, 22-24 parts of polyhydroxyalkanoate, 12-15 parts of aliphatic aromatic copolyester, 8-10 parts of nontoxic mixed fiber, 11-14 parts of photosensitizer and 1-3 parts of defoaming agent.
Preferably, the aliphatic aromatic copolyester comprises 2-5 parts of oxalic acid, 4-6 parts of terephthalic acid and 4-6 parts of 1, 4-butanediol by mass.
Preferably, the composition comprises the following raw materials in parts by mass: 1-3 parts of a carbon dioxide copolymer.
An environment-friendly degradable plastic cup processing injection molding process comprises the following steps:
s1: putting the raw materials into injection molding equipment for injection molding;
s2: deburring the just-formed plastic cup;
the injection molding equipment adopted in the invention comprises a conveying pipeline, a feeding pipeline, a first driving mechanism and a molding mechanism; the feeding pipeline is vertically arranged, the top of the feeding pipeline extends outwards to form a funnel shape, the bottom end of the feeding pipeline is provided with a conveying pipeline, and the bottom end of the feeding pipeline is communicated with the conveying pipeline; a spiral feeding rod is arranged inside the conveying pipeline, a baffle is arranged inside the right side of the conveying pipeline, and a first driving mechanism is fixedly arranged on the right side of the baffle; the first driving mechanism comprises a driving motor, a coupler and a screw rod; the right end of the screw rod is fixedly connected with the output end of the driving motor through a coupler, and the left end of the screw rod penetrates through the baffle plate and is fixedly connected with the spiral feeding rod; and the left side of the conveying pipeline is communicated with a forming mechanism.
Preferably, the molding mechanism comprises a movable mold, a fixed mold, a first vertical plate and a second vertical plate; the first vertical plate is vertically arranged, a first through hole matched with the conveying pipeline is formed in the middle of the first vertical plate, a second vertical plate is vertically fixed on the right side surface of the first vertical plate, and the first vertical plate and the second vertical plate are fixedly connected through a connecting rod; a fixed die is fixedly mounted on the left side of the middle part of the first vertical plate, a round hole is formed in the middle of the fixed die, and the round hole is communicated with a conveying pipeline; second through holes are symmetrically formed in the surface of the second vertical plate, push rods are arranged in the second through holes, and the right ends of the two push rods are fixed to the left side of the fixing plate; the center of the right side of the fixed plate is fixedly connected with a movable template; first cross rods are symmetrically fixed on the right side of the fixed die, the other ends of the first cross rods are fixed on the surface of the movable die plate, a connecting plate is fixed at the center of the right side of the movable die plate, second cross rods are horizontally and symmetrically arranged on the surface of the connecting plate, the right ends of the two second cross rods are fixedly connected with the movable die, third through holes are symmetrically formed in the surface of the movable die, and the second cross rods extend into the third through holes to be fixedly connected with the movable die; an extrusion spring is sleeved on the surface of a second cross rod between the movable die and the connecting plate; extrusion holes are formed in the centers of the fixed plate and the movable template, and extrusion rods are arranged on the right side of the second vertical plate corresponding to the extrusion holes; and a second driving mechanism is arranged on the left side of the forming mechanism.
Preferably, the second driving mechanism comprises a hydraulic cylinder, a piston rod and a push plate; the right side surface of the push plate is fixedly connected with the left ends of the two push rods, the center of the left side of the push plate is fixedly connected with a piston rod, and the other end of the piston rod is fixedly connected with the output end of the hydraulic cylinder.
Preferably, a heating mechanism is arranged outside the conveying pipeline; the heating mechanism comprises a sleeve, a partition plate and a heating pipe; the sleeve is sleeved outside the conveying pipeline, the inner diameter of the sleeve is larger than the outer diameter of the conveying pipeline, and a plurality of partition plates are arranged on the inner wall of the sleeve at equal intervals in the circumferential direction; the heating pipe is fixedly arranged between every two partition plates; and a temperature sensor is arranged on the outer side of the left end of the conveying pipeline.
Preferably, a stirring mechanism is arranged inside the top end of the feeding pipeline; the stirring mechanism comprises a stirring tooth group, a rotating shaft and a stirring motor; the two rotating shafts are horizontally arranged in the feeding pipeline, the surfaces of the rotating shafts are fixedly connected with stirring tooth groups, the stirring tooth groups of the two rotating shafts are arranged in a staggered mode, and the left ends of the rotating shafts penetrate through the feeding pipeline and are fixedly connected with a stirring motor; the stirring motor is fixedly arranged on the surface of the motor support, and the side surface of the motor support is fixedly connected with the feeding pipeline.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the raw materials are stirred by the stirring mechanism before injection molding, so that the blockage of large-particle raw materials in a conveying pipeline can be avoided; and carry the raw materials by the spiral feed rod, can prevent the backward flow of raw materials when further preventing to block up, realize moulding plastics and extrude by forming mechanism at last, whole flow is simple, the control of being convenient for.
2. The main raw materials of the environment-friendly degradable plastic cup prepared by the invention are polyvinyl alcohol, starch and polyhydroxyalkanoate, the polyvinyl alcohol is easier to degrade than polyethylene, and the stability can be further reduced and the degradation rate can be accelerated after the starch and the nontoxic mixed fiber are added.
Drawings
FIG. 1 is a schematic perspective view of the injection molding apparatus of the present invention;
FIG. 2 is a front view of a stirring mechanism in the injection molding apparatus of the present invention;
FIG. 3 is a front view of a transfer duct of the injection molding apparatus of the present invention;
FIG. 4 is a schematic view showing the connection of the molding mechanism in the injection molding apparatus of the present invention.
In the figure: 1. an injection molding apparatus; 2. a feed conduit; 3. a delivery conduit; 4. a helical feed bar; 5. a baffle plate; 6. a first drive mechanism; 601. a drive motor; 602. a screw rod; 603. a coupling; 7. a molding mechanism; 701. moving the mold; 702. fixing a mold; 703. a first vertical plate; 704. a first through hole; 705. a second vertical plate; 706. a connecting rod; 707. a circular hole; 708. a second through hole; 709. a push rod; 710. a fixing plate; 711. moving the template; 712. a connecting plate; 713. a first cross bar; 714. a second cross bar; 715. a third through hole; 716. a compression spring; 717. an extrusion orifice; 718. an extrusion stem; 8. a second drive mechanism; 801. a hydraulic cylinder; 802. a piston rod; 803. pushing the plate; 9. a heating mechanism; 901. a sleeve; 902. a partition plate; 903. heating a tube; 904. a temperature sensor; 10. a stirring mechanism; 101. a stirring tooth group; 102. a rotating shaft; 103. a stirring motor; 104. a motor bracket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the 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.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, 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 by those skilled in the art according to specific situations.
The invention relates to an environment-friendly degradable plastic cup, which comprises the following components in parts by mass: 20-22 parts of polyvinyl alcohol, 16-20 parts of starch, 22-24 parts of polyhydroxyalkanoate, 12-15 parts of aliphatic aromatic copolyester, 8-10 parts of nontoxic mixed fiber, 11-14 parts of photosensitizer, 1-3 parts of defoaming agent and 1-3 parts of carbon dioxide copolymer.
The aliphatic aromatic copolyester comprises 2-5 parts of oxalic acid, 4-6 parts of terephthalic acid and 4-6 parts of 1, 4-butanediol by mass.
As shown in FIGS. 1-4, the invention provides an environment-friendly degradable plastic cup processing injection molding process, which comprises the following steps:
s1: putting the raw materials into an injection molding device 1 for injection molding;
s2: deburring the just-formed plastic cup;
the injection molding equipment 1 adopted in the invention comprises a conveying pipeline 3, a feeding pipeline 2, a first driving mechanism 6 and a molding mechanism 7; the feeding pipeline 2 is vertically arranged, the top of the feeding pipeline 2 extends outwards to form a funnel shape, the bottom end of the feeding pipeline 2 is provided with a conveying pipeline 3, and the bottom end of the feeding pipeline 2 is communicated with the conveying pipeline 3; a spiral feeding rod 4 is arranged inside the conveying pipeline 3, a baffle plate 5 is arranged inside the right side of the conveying pipeline 3, and a first driving mechanism 6 is fixedly arranged on the right side of the baffle plate 5; the first driving mechanism 6 comprises a driving motor 601, a coupler 603 and a screw 602; the right end of the screw rod 602 is fixedly connected with the output end of the driving motor 601 through a coupler 603, and the left end of the screw rod 602 penetrates through the baffle 5 and is fixedly connected with the spiral feeding rod 4; and the left side of the conveying pipeline 3 is communicated with a forming mechanism 7.
The molding mechanism 7 comprises a movable mold 701, a fixed mold 702, a first vertical plate 703 and a second vertical plate 705; the first vertical plate 703 is vertically arranged, the middle part of the first vertical plate 703 is provided with a first through hole 704 matched with the conveying pipeline 3, the right side surface of the first vertical plate 703 is vertically fixed with a second vertical plate 705, and the first vertical plate 703 and the second vertical plate 705 are fixedly connected through a connecting rod 706; a fixed die 702 is fixedly mounted on the left side of the middle part of the first vertical plate 703, a circular hole 707 is formed in the middle part of the fixed die 702, and the circular hole 707 is communicated with the conveying pipeline 3; a second through hole 708 is symmetrically formed in the surface of the second vertical plate 705, a push rod 709 is arranged in the second through hole 708, and the right ends of the two push rods 709 are fixed to the left side of the fixing plate 710; a movable template 711 is fixedly connected to the center of the right side of the fixed plate 710; a first cross bar 713 is symmetrically fixed on the right side of the fixed die 702, the other end of the first cross bar 713 is fixed on the surface of the movable die plate 711, a connecting plate 712 is fixed at the center of the right side of the movable die plate 711, second cross bars 714 are horizontally and symmetrically arranged on the surface of the connecting plate 712, the right ends of the two second cross bars 714 are fixedly connected with the movable die 701, third through holes 715 are symmetrically formed in the surface of the movable die 701, and the second cross bars 714 extend into the third through holes 715 to be fixedly connected with the movable die 701; an extrusion spring 716 is sleeved on the surface of the second cross rod 714 between the movable die 701 and the connecting plate 712; extrusion holes 717 are formed in the centers of the fixed plate 710 and the movable die plate 711, and extrusion rods 718 are arranged on the right side of the second vertical plate 705 corresponding to the extrusion holes 717; a second driving mechanism 8 is arranged on the left side of the forming mechanism 7;
the second driving mechanism 8 comprises a hydraulic cylinder 801, a piston rod 802 and a push plate 803; the right side surface of the push plate 803 is fixedly connected with the left ends of the two push rods 709, the center of the left side of the push plate 803 is fixedly connected with a piston rod 802, and the other end of the piston rod 802 is fixedly connected with the output end of the hydraulic cylinder 801;
a heating mechanism 9 is arranged outside the conveying pipeline 3; the heating mechanism 9 comprises a sleeve 901, a partition plate 902 and a heating pipe 903; the sleeve 901 is sleeved outside the conveying pipeline 3, the inner diameter of the sleeve 901 is larger than the outer diameter of the conveying pipeline 3, and a plurality of partition plates 902 are arranged on the inner wall of the sleeve 901 at equal intervals in the circumferential direction; the heating pipe 903 is fixedly arranged between every two partition plates 902; a temperature sensor 904 is arranged on the outer side of the left end of the conveying pipeline 3;
a stirring mechanism 10 is arranged inside the top end of the feeding pipeline 2; the stirring mechanism 10 comprises a stirring tooth group 101, a rotating shaft 102 and a stirring motor 103; the two rotating shafts 102 are horizontally arranged inside the feeding pipeline 2, the surface of each rotating shaft 102 is fixedly connected with a stirring tooth group 101, the stirring tooth groups 101 of the two rotating shafts 102 are arranged in a staggered mode, and the left end of each rotating shaft 102 penetrates through the feeding pipeline 2 and is fixedly connected with a stirring motor 103; the stirring motor 103 is fixedly arranged on the surface of the motor support 104, and the side surface of the motor support 104 is fixedly connected with the feeding pipeline 2.
As shown in fig. 1-2, when in use, firstly, the raw material is put into the feeding pipe 2 from the top end and enters the conveying pipe 3 through the feeding pipe 2, the stirring mechanism 10 is arranged inside the top end of the feeding pipe 2, the stirring mechanism 10 drives the rotating shaft 102 through the stirring motor 103 so as to rotate the stirring tooth group 101, and the two staggered stirring tooth groups 101 can stir the raw material, so that the raw material is crushed, and the conveying pipe 3 is prevented from being blocked by the large-particle raw material;
as shown in fig. 3, after falling into the conveying pipeline 3, the raw material is conveyed by the cooperation of the spiral feeding rod 4 and the first driving mechanism 6, and the first driving mechanism 6 comprises a driving motor 601, a screw rod 602 and a coupling 603; the output end of the driving motor 601 is fixedly connected with the screw rod 602 through the coupler 603, the other end of the screw rod 602 penetrates through the baffle 5 and is fixedly connected with the end part of the spiral feeding rod 4, when raw materials are conveyed, the driving motor 601 drives the coupler 603 to rotate so as to enable the screw rod 602 to extend out during rotation, and when the screw rod 602 extends out in rotation, the spiral feeding rod 4 can be driven to extend out in rotation, so that the raw materials can be conveyed into the forming mechanism 7 from the conveying pipeline 3;
a heating mechanism 9 is arranged outside the conveying pipeline 3, and the heating mechanism 9 comprises a sleeve 901, a partition plate 902 and a heating pipe 903; the partition plates 902 are fixed on the inner wall of the sleeve 901 at equal intervals, the partition plates 902 can help the heating pipe 903 to be installed and fixed, the heating pipe 903 is in direct contact with the outer wall of the conveying pipeline 3 after installation is completed, so that a heating effect can be achieved on raw materials during conveying, the raw materials are in a semi-molten state for injection molding, the outer side of the end part of the conveying pipeline 3 is provided with the temperature sensor 904, and the temperature sensor 904 can detect whether the temperature of the conveying pipeline 3 reaches a proper temperature;
as shown in fig. 4, the raw material is heated in the delivery pipe 3 and then delivered into the molding mechanism 7 for injection molding, the molding mechanism 7 is driven by the second driving mechanism 8, during injection molding, the hydraulic cylinder 801 drives the piston rod 802 to extend out so as to move the push plate 803 to the right, when the push plate 803 moves, the two push rods 709 are driven to extend out so as to move the fixed plate 710 to the right, the side of the fixed plate 710 is sequentially fixed with the movable template 711 and the connecting plate 712, the movable template 711 and the connecting plate 712 move to the right due to the fixed plate 710, so that the movable mold 701 is driven to move to the right by the second cross rod 714, the movable mold 701 and the fixed mold 702 are closed, injection molding is performed, after injection molding is finished, the hydraulic cylinder 801 drives the piston rod 802 to move the fixed plate 710, the movable template 711 and the movable mold 701 to the left, and after moving to, the connecting plate 712 is moved to the right alone, so that the second cross bar 714 protrudes from the third through hole 715, and the injection molded plastic cup is extruded, thereby completing the injection molding work.
It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The environment-friendly degradable plastic cup is characterized by comprising the following components in parts by mass: 20-22 parts of polyvinyl alcohol, 16-20 parts of starch, 22-24 parts of polyhydroxyalkanoate, 12-15 parts of aliphatic aromatic copolyester, 8-10 parts of nontoxic mixed fiber, 11-14 parts of photosensitizer and 1-3 parts of defoaming agent.
2. The environment-friendly degradable plastic cup as claimed in claim 1, wherein: the aliphatic aromatic copolyester comprises 2-5 parts of oxalic acid, 4-6 parts of terephthalic acid and 4-6 parts of 1, 4-butanediol by mass.
3. The environment-friendly degradable plastic cup as claimed in claim 1, wherein: comprises the following raw materials in parts by mass: 1-3 parts of a carbon dioxide copolymer.
4. An environment-friendly degradable plastic cup processing injection molding process is characterized by comprising the following steps:
s1: putting the raw materials into injection molding equipment (1) for injection molding;
s2: deburring the just-formed plastic cup;
the injection molding equipment (1) adopted by the invention comprises a conveying pipeline (3), a feeding pipeline (2), a first driving mechanism (6) and a molding mechanism (7); the feeding pipeline (2) is vertically arranged, the top of the feeding pipeline (2) extends outwards to form a funnel shape, the bottom end of the feeding pipeline (2) is provided with a conveying pipeline (3), and the bottom end of the feeding pipeline (2) is communicated with the conveying pipeline (3); a spiral feeding rod (4) is arranged inside the conveying pipeline (3), a baffle (5) is arranged inside the right side of the conveying pipeline (3), and a first driving mechanism (6) is fixedly arranged on the right side of the baffle (5); the first driving mechanism (6) comprises a driving motor (601), a coupler (603) and a screw rod (602); the right end of the screw rod (602) is fixedly connected with the output end of the driving motor (601) through a coupler (603), and the left end of the screw rod (602) penetrates through the baffle (5) and is fixedly connected with the spiral feeding rod (4); the left side of the conveying pipeline (3) is communicated with a forming mechanism (7).
5. The processing and injection molding process of the environment-friendly degradable plastic cup as claimed in claim 4, wherein the processing and injection molding process comprises the following steps: the molding mechanism (7) comprises a movable mold (701), a fixed mold (702), a first vertical plate (703) and a second vertical plate (705); the first vertical plate (703) is vertically arranged, a first through hole (704) matched with the conveying pipeline (3) is formed in the middle of the first vertical plate (703), a second vertical plate (705) is vertically fixed on the right side surface of the first vertical plate (703), and the first vertical plate (703) and the second vertical plate (705) are fixedly connected through a connecting rod (706); a fixed die (702) is fixedly mounted on the left side of the middle part of the first vertical plate (703), a round hole (707) is formed in the middle part of the fixed die (702), and the round hole (707) is communicated with the conveying pipeline (3); a second through hole (708) is symmetrically formed in the surface of the second vertical plate (705), push rods (709) are arranged in the second through hole (708), and the right ends of the two push rods (709) are fixed to the left side of the fixing plate (710); the center of the right side of the fixed plate (710) is fixedly connected with a movable template (711); first cross bars (713) are symmetrically fixed on the right side of the fixed die (702), the other ends of the first cross bars (713) are fixed on the surface of a movable die plate (711), a connecting plate (712) is fixed at the center of the right side of the movable die plate (711), second cross bars (714) are horizontally and symmetrically arranged on the surface of the connecting plate (712), the right ends of the two second cross bars (714) are fixedly connected with the movable die (701), third through holes (715) are symmetrically formed in the surface of the movable die (701), and the second cross bars (714) extend into the third through holes (715) to be fixedly connected with the movable die (701); an extrusion spring (716) is sleeved on the surface of a second cross rod (714) between the movable die (701) and the connecting plate (712); extrusion holes (717) are formed in the centers of the fixed plate (710) and the movable die plate (711), and extrusion rods (718) are arranged on the right side of the second vertical plate (705) corresponding to the extrusion holes (717); and a second driving mechanism (8) is arranged on the left side of the forming mechanism (7).
6. The processing and injection molding process of the environment-friendly degradable plastic cup according to claim 5, characterized in that: the second driving mechanism (8) comprises a hydraulic cylinder (801), a piston rod (802) and a push plate (803); the right side surface of the push plate (803) is fixedly connected with the left ends of the two push rods (709), the center of the left side of the push plate (803) is fixedly connected with a piston rod (802), and the other end of the piston rod (802) is fixedly connected with the output end of the hydraulic cylinder (801).
7. The processing and injection molding process of the environment-friendly degradable plastic cup as claimed in claim 4, wherein the processing and injection molding process comprises the following steps: a heating mechanism (9) is arranged on the outer side of the conveying pipeline (3); the heating mechanism (9) comprises a sleeve (901), a partition plate (902) and a heating pipe (903); the sleeve (901) is sleeved outside the conveying pipeline (3), the inner diameter of the sleeve (901) is larger than the outer diameter of the conveying pipeline (3), and a plurality of partition plates (902) are arranged on the inner wall of the sleeve (901) at equal intervals in the circumferential direction; the heating pipe (903) is fixedly arranged between every two partition plates (902); and a temperature sensor (904) is arranged on the outer side of the left end of the conveying pipeline (3).
8. The processing and injection molding process of the environment-friendly degradable plastic cup as claimed in claim 4, wherein the processing and injection molding process comprises the following steps: a stirring mechanism (10) is arranged inside the top end of the feeding pipeline (2); the stirring mechanism (10) comprises a stirring tooth group (101), a rotating shaft (102) and a stirring motor (103); the two rotating shafts (102) are horizontally arranged in the feeding pipeline (2), the surfaces of the rotating shafts (102) are fixedly connected with stirring tooth groups (101), the stirring tooth groups (101) of the two rotating shafts (102) are arranged in a staggered mode, and the left ends of the rotating shafts (102) penetrate through the feeding pipeline (2) and are fixedly connected with stirring motors (103); the stirring motor (103) is fixedly arranged on the surface of the motor support (104), and the side surface of the motor support (104) is fixedly connected with the feeding pipeline (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010827646.2A CN112094486A (en) | 2020-08-17 | 2020-08-17 | Environment-friendly degradable plastic cup and processing injection molding process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010827646.2A CN112094486A (en) | 2020-08-17 | 2020-08-17 | Environment-friendly degradable plastic cup and processing injection molding process thereof |
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| CN107459796A (en) * | 2017-09-26 | 2017-12-12 | 安徽金星包装有限公司 | A kind of plastic cup and its processing method |
| CN111432905A (en) * | 2017-12-01 | 2020-07-17 | 乐高公司 | Toy building blocks made of biopolymer material |
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| CN1239725A (en) * | 1999-06-22 | 1999-12-29 | 沈阳南阳经贸集团有限公司 | Polynary degradable resin composition and its preparation process |
| CN101142255A (en) * | 2005-03-18 | 2008-03-12 | 诺瓦蒙特股份公司 | Biodegradable aliphatic -aromatic polyesters |
| CN106147174A (en) * | 2016-07-29 | 2016-11-23 | 苏州秉创科技有限公司 | A kind of 3D printing consumables being prone to degraded |
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Application publication date: 20201218 |
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