阅读说明：本技术 一次性降解的纸材料及其制备方法 (Disposable degradable paper material and preparation method thereof ) 是由 张志威 樊行田 于 2020-06-18 设计创作，主要内容包括：本发明公开了一次性降解的纸材料及其制备方法,本发明以具有良好生物降解性能的高分子化合物淀粉为主要成分,加入可生物降解的聚合物,在特定的温度、压力下混炼,并在混合体中添加成核剂、增塑剂、抗氧剂、稳定剂、防水剂、吸湿剂、润滑剂和脱模剂,通过物理与化学改性,进行分子结构修饰与自组复,从耐高温、耐水、耐油、耐渗漏、抗冲击强度、不变形、柔韧性等方面,提高其适用性能,并使其在生物环境中被腐蚀、吸收、降解、磨损和失效,从而达到全降解的目的。(The invention discloses a disposable degradable paper material and a preparation method thereof, the invention takes macromolecular compound starch with good biodegradability as a main component, biodegradable polymers are added, the mixture is mixed under specific temperature and pressure, nucleating agent, plasticizer, antioxidant, stabilizer, waterproof agent, hygroscopic agent, lubricant and mold release agent are added into the mixture, molecular structure modification and self-assembly are carried out through physical and chemical modification, the applicability of the disposable degradable paper material is improved from the aspects of high temperature resistance, water resistance, oil resistance, leakage resistance, impact strength, no deformation, flexibility and the like, and the disposable degradable paper material is corroded, absorbed, degraded, worn and ineffective in biological environment, thereby achieving the purpose of full degradation.)

1. The disposable degradable paper material is characterized by being prepared from the following raw materials in parts by weight: 52.08 to 76.92 parts of starch, 10.07 to 24.6 parts of polypropylene, 2.42 to 10.17 parts of polyethylene, 0.63 to 3.54 parts of nucleating agent, 0.08 to 0.60 part of substituted bis (benzylidene) sorbitol, 0.23 to 1.79 part of durable plasticizer, 1.55 to 4.17 parts of weather-resistant plasticizer, 0.38 to 1.80 parts of antioxidant, 0.39 to 2.38 parts of stabilizer, 0.78 to 2.63 parts of waterproof agent, 0.77 to 2.40 parts of hygroscopic agent, 0.78 to 2.98 parts of lubricant and 0.23 to 1.79 parts of release agent.

2. The disposable degraded paper material of claim 1, characterized in that the nucleating agent is urea or caprolactam.

3. The disposable degraded paper material of claim 1, wherein the durable plasticizer is a polyester plasticizer; the weather-resistant plasticizer is epoxidized soybean oil or glycerol; the antioxidant is 2, 2-methylene bis (4-methyl-6-tert-butylphenol) or tri (2, 4-di-tert-butylphenol) phosphite; the stabilizer is zinc stearate; the moisture absorbent is calcium stearate; the waterproof agent is microcrystalline wax or paraffin wax; the lubricant is talcum powder; the release agent is stearic acid.

4. The preparation method of the disposable degradable paper material is characterized by comprising the following steps:

step one, adding starch, polypropylene ethylene and polyethylene into a high-speed mixer for mixing, wherein the running time is 1-2 minutes, the rotating speed of the high-speed mixer is 80-120 revolutions per minute, and the temperature in the high-speed mixer is 95-120 ℃;

secondly, adding the nucleating agent, the substituted di (benzylidene) sorbitol, the durable plasticizer, the weather-resistant plasticizer, the antioxidant, the stabilizer, the waterproof agent, the moisture absorbent, the lubricant and the release agent into a high-speed mixer for high-speed mixing, wherein the running time is 25-35 minutes, and the rotating speed of the high-speed mixer is 700-860 revolutions per minute;

step three, feeding materials into a cooling mixer for cooling, wherein the running time is 5-10 minutes, and the rotating speed of the cooling mixer is 50-100 revolutions per minute; discharging to obtain the required powder;

step four, powder is metered and sent into an extruder, extruded melt is sent into a forming machine for compression forming, a motor is started firstly, raw materials are mixed and melted to obtain melt, a motor six (23) is started firstly to drive a rotating arm (11) to rotate, the rotating arm (11) drives a sleeve I (12) to rotate, a lower die (16) is separated from an upper die (14), then the motor is started to drive a rotating shaft (20) to rotate and further drive an extruder (22) to rotate to reach the upper part of the lower die (16), then an air cylinder telescopic rod (21) is started to drive the extruder (22) to descend, a discharge port is opened to discharge the material into the lower die (16), then the extruder (22) is reset, the motor six (23) is started again, the sleeve I (12) is reset, the lower die (16) is opposite to the upper die (14), at the moment, the air cylinder (15) is started to drive a piston rod to be inserted into a limiting, then starting a motor I (3), driving a semicircular wheel I (4) to rotate after speed reduction is carried out through a speed reducer (2), enabling the semicircular wheel I (4) to be matched with a guide wheel I (30) so as to drive a rotating seat (6) to rotate, inserting an upper die (14) into a lower die (16), simultaneously starting a motor III (18), driving a transmission shaft (27) to rotate through a belt pulley and a belt, driving a semicircular wheel II (28) to rotate through the transmission shaft (27), enabling the semicircular wheel II (28) to be matched with a guide wheel II (29) so as to jack up a movable plate (26) so as to drive the lower die (16) to ascend, and carrying out extrusion forming on the upper die (14) and the lower die (16); then the upper die (14) is reset, the motor IV (24) is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II (25) to ascend, the top of the molded product is further sucked to the conveying belt (36) through the ejector pin, and then the molded product is sucked to the conveying belt (36) through the suction nozzle (38) to be conveyed; and then the edge of the formed product is cut by an edge cutter to obtain the required disposable degradable paper material, the rotating speed of a screw of the extruder is 300-.

5. The preparation method of disposable degradable paper material according to claim 4, wherein the forming machine comprises a base (1), one end of the top of the base (1) is fixedly installed with a speed reducer (2), the top of the speed reducer (2) is fixedly installed with a first motor (3), one end of the speed reducer (2) penetrates through the center of the first semicircular wheel (4) through a rotating shaft and is rotatably connected with the base (1), the top of the base (1) is fixedly installed with two rotating roller installation seats (37), a rotating roller (19) is rotatably connected between the two rotating roller installation seats (37), the top of the rotating roller (19) is installed with a rotating seat (6), one end of the bottom of the rotating seat (6) is rotatably connected with a first guide wheel (30), the first guide wheel (30) is matched with the first semicircular wheel (4), one end of the top of the rotating seat (6) is fixedly installed with a balancing weight (5), one side fixed mounting of balancing weight (5) has motor five (31), the output shaft of motor five (31) is connected with lead screw (8), the screw thread bush has been cup jointed on lead screw (8), and fixed mounting has sliding seat (9) on the screw thread bush, the top horizontal installation of roating seat (6) has two guide rails one (7), guide rail one (7) and sliding seat (9) sliding connection, one side fixed mounting of sliding seat (9) has motor six (23) of vertical setting, the output shaft tip fixed mounting of motor six (23) has swinging boom (11), swinging boom (11) are L type structure, the top fixed mounting of swinging boom (11) has motor two (10) of vertical setting, the output shaft of motor two (10) runs through swinging boom (11) and is connected with threaded rod one, has cup jointed sleeve one (12) on the threaded rod one, the bottom of the first sleeve (12) is fixedly connected with an upper die (14) through a bolt;

the inner part of the base (1) is fixedly provided with a motor III (18), an output shaft of the motor III (18) is connected with a transmission shaft (27) through a belt pulley and a belt, the transmission shaft (27) is horizontally installed and is rotatably connected with the base (1), a semicircular wheel II (28) is sleeved on the transmission shaft (27), two guide rails III (35) are vertically installed on one side of the base (1), a moving plate (26) is connected onto the guide rails III (35) in a sliding mode, the moving plate (26) is of an L-shaped structure, one side of a vertical plate of the moving plate (26) is connected with a guide wheel II (29) through a rotating shaft, the guide wheel II (29) is matched with the semicircular wheel II (28), and the other side of the vertical plate of the moving plate (26) is fixedly provided with a lower die (16); the lower die (16) is adapted to the upper die (14).

6. The preparation method of the disposable degradable paper material according to claim 5, wherein one side of the base (1) is vertically and slidably connected with two second guide rails (34), a motor mounting plate (33) is slidably connected between the two second guide rails (34), an adjusting bolt (32) is installed at the center of one side of the motor mounting plate (33), the adjusting bolt (32) is in threaded connection with one ends of the two second guide rails (34) through a connecting plate, a vertically arranged motor four (24) is fixedly installed on the motor mounting plate (33), an output shaft of the motor four (24) is connected with a vertically arranged second threaded rod through a belt pulley and a belt, and the bottom of the second threaded rod is rotatably connected with a horizontal plate of the movable plate (26); a second sleeve (25) is sleeved on the second threaded rod, and the second sleeve (25) extends into the lower die (16) and is connected with the ejector pin; the top of the base (1) is provided with a conveying belt (36).

7. The preparation method of the disposable degradable paper material according to claim 5, wherein one side of the first sleeve (12) is slidably connected with a fixture block (13), the fixture block (13) is provided with a limiting hole, one side of the sliding seat (9) is fixedly provided with a cylinder (15), and a piston rod of the cylinder (15) is matched with the limiting hole.

8. The preparation method of disposable degradable paper material according to claim 5, characterized in that one side of the base (1) is fixedly installed with a protective frame (17), the top of the protective frame (17) is fixedly installed with a motor, the output shaft of the motor is fixedly installed with a rotating shaft (20), the top of the rotating shaft (20) is fixedly installed with an air cylinder telescopic rod (21), one side of the air cylinder telescopic rod (21) is symmetrically installed with an extruder (22) and a suction nozzle (38).

Technical Field

The invention relates to the technical field of environment-friendly paper materials, in particular to a disposable degradable paper material and a preparation method thereof.

Background

The existing plastic widely used in the packaging industry can not be self-degraded, and the waste thereof seriously pollutes the living environment of human beings, animals and plants. The natural degradable macromolecules such as starch are doped into the petrochemical plastics, so that the degradation period of the plastics can be shortened, and the plastics are only broken in shape. At present, no real fully degradable plastic exists. The other paper container made of completely degradable natural cellulose material has the defects of poor water resistance and oil resistance, high cost, low strength and limited application range, and the pollution of the paper product to water and atmosphere is several times or dozens of times more serious than that of the plastic product. And current former can not carry out the reciprocal work of circulation, leads to work efficiency low to be not convenient for be suitable for different moulds, lead to its practicality poor.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a disposable degradable paper material and a preparation method thereof, the disposable degradable paper material takes macromolecular compound starch with good biodegradability as a main component, biodegradable polymers are added, the mixing is carried out at specific temperature and pressure, nucleating agents, plasticizers, antioxidants, stabilizers, waterproofing agents, moisture absorbents, lubricants and mold release agents are added into a mixture, the molecular structure modification and the self-assembly are carried out through physical and chemical modification, the applicability of the disposable degradable paper material is improved from the aspects of high temperature resistance, water resistance, oil resistance, leakage resistance, impact strength, no deformation, flexibility and the like, and the disposable degradable paper material is corroded, absorbed, degraded, worn and failed in a biological environment, so that the purpose of full degradation is achieved.

Compared with the prior art, the invention has the advantages of novel components, scientific ingredients, simple preparation, lower cost, no toxicity, no pollution, complete biodegradation, capability of being used as compost after being discarded, capability of being used as a culture medium component of mushroom edible fungi or other soilless culture materials, white ash after being burnt and no molten drop. The paper-like material has good heat resistance, water resistance and oil resistance, can be molded by hot pressing, and can be widely applied to manufacturing various disposable packaging containers, especially food containers, or other products.

The screw rod is driven to rotate by the starting motor V, the screw rod pushes the sliding seat to move through the threaded sleeve, the upper die is driven to move, the horizontal position of the upper die is adjusted, then the motor II is started, the first threaded rod is driven to rotate, the first threaded rod drives the first sleeve to rotate, the upper die is driven to lift, the height of the upper die is adjusted, and different types of dies can be conveniently adapted by adjusting the position of the upper die; meanwhile, one side of the first sleeve is connected with a clamping block in a sliding mode, the height of the clamping block can be adjusted by driving the screw rod through the motor, even if the first sleeve moves up and down, the clamping block can still be kept at the same height, a piston rod of the air cylinder can be conveniently inserted into a limiting hole formed in the clamping block to position the first sleeve, and the problem that an upper die shakes in the extrusion forming process to cause inaccurate positioning is avoided;

the method comprises the following steps that firstly, a motor is started, raw materials are mixed and melted to obtain a melt, a balancing weight is fixedly installed at one end of the top of a rotating seat, the upper die can be guaranteed to be in a lifting state at the latest through the arrangement of the balancing weight, and the upper die can be guaranteed to naturally lift under the action of the balancing weight after a half circle of rotation of a semicircular wheel is carried out through the arrangement of the balancing weight, so that the circular work is completed; then starting a motor six to drive a rotating arm to rotate, wherein the rotating arm drives a sleeve I to rotate, and a lower die is separated from an upper die, so that the extruder is prevented from touching the upper die in the rotating process; then starting a motor to drive a rotating shaft to rotate and further drive the extruder to rotate to reach the upper part of the lower die, then starting a telescopic rod of a cylinder to drive the extruder to descend, opening a discharge port to discharge materials into the lower die, then resetting the extruder, starting a motor II again, resetting a sleeve I, enabling the lower die to be opposite to the upper die, starting the cylinder at the moment, driving a piston rod to be inserted into a limiting hole formed in a clamping block, then starting a motor I, driving a semicircular wheel I to rotate after speed reduction through a speed reducer, enabling the semicircular wheel I to be matched with a guide wheel I, further driving a rotating seat to rotate, inserting the upper die into the lower die, simultaneously starting a motor III, driving a transmission shaft to rotate through a belt pulley and a belt, driving a semicircular wheel II to rotate, enabling the semicircular wheel II to be matched with the guide wheel II, further jacking a moving plate to further drive the lower die, meanwhile, the lower die can perform reciprocating motion circularly and extrusion molding conveniently by the arrangement of the second semicircular wheel; then the upper die is reset, the motor IV is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II to ascend, the top of the molded product is further sucked to the conveying belt through the ejector pin, and then the molded product is sucked to the conveying belt through the suction nozzle to be conveyed; the whole equipment has high automation degree, can work circularly and improves the working efficiency.

The purpose of the invention can be realized by the following technical scheme:

the disposable degradable paper material is prepared from the following raw materials in parts by weight: 52.08 to 76.92 parts of starch, 10.07 to 24.6 parts of polypropylene, 2.42 to 10.17 parts of polyethylene, 0.63 to 3.54 parts of nucleating agent, 0.08 to 0.60 part of substituted bis (benzylidene) sorbitol, 0.23 to 1.79 part of durable plasticizer, 1.55 to 4.17 parts of weather-resistant plasticizer, 0.38 to 1.80 parts of antioxidant, 0.39 to 2.38 parts of stabilizer, 0.78 to 2.63 parts of waterproof agent, 0.77 to 2.40 parts of hygroscopic agent, 0.78 to 2.98 parts of lubricant and 0.23 to 1.79 parts of release agent.

As a further scheme of the invention: the nucleating agent is urea or caprolactam.

As a further scheme of the invention: the durable plasticizer is a polyester plasticizer; the weather-resistant plasticizer is epoxidized soybean oil or glycerol; the antioxidant is 2, 2-methylene bis (4-methyl-6-tert-butylphenol) or tri (2, 4-di-tert-butylphenol) phosphite; the stabilizer is zinc stearate; the moisture absorbent is calcium stearate; the waterproof agent is microcrystalline wax or paraffin wax; the lubricant is talcum powder; the release agent is stearic acid.

As a further scheme of the invention: the preparation method of the disposable degraded paper material comprises the following steps:

step one, adding starch, polypropylene ethylene and polyethylene into a high-speed mixer for mixing, wherein the running time is 1-2 minutes, the rotating speed of the high-speed mixer is 80-120 revolutions per minute, and the temperature in the high-speed mixer is 95-120 ℃;

secondly, adding the nucleating agent, the substituted di (benzylidene) sorbitol, the durable plasticizer, the weather-resistant plasticizer, the antioxidant, the stabilizer, the waterproof agent, the moisture absorbent, the lubricant and the release agent into a high-speed mixer for high-speed mixing, wherein the running time is 25-35 minutes, and the rotating speed of the high-speed mixer is 700-860 revolutions per minute;

step three, feeding materials into a cooling mixer for cooling, wherein the running time is 5-10 minutes, and the rotating speed of the cooling mixer is 50-100 revolutions per minute; discharging to obtain the required powder;

step four, powder is metered into an extruder, extruded melt is sent into a forming machine for compression forming, a motor is started to mix and melt raw materials to obtain melt, a motor six is started to drive a rotating arm to rotate, the rotating arm drives a sleeve I to rotate, a lower die is separated from an upper die, then the motor is started to drive a rotating shaft to rotate, further the extruder is driven to rotate to reach the upper part of the lower die, then a telescopic rod of a cylinder is started to drive the extruder to descend, a discharge opening is opened to discharge materials into the lower die, then the extruder is reset, the motor six is started again, the sleeve I is reset, the lower die is opposite to the upper die, the cylinder is started at the moment to drive a piston rod to be inserted into a limiting hole formed in a clamping block, then the motor I is started to drive a semicircular wheel I to rotate after the speed is reduced by a speed reducer, the semicircular wheel I is matched with a guide wheel, simultaneously starting a motor III, driving a transmission shaft to rotate through a belt pulley and a belt, driving a semicircular wheel II to rotate through the transmission shaft, enabling the semicircular wheel II to be matched with a guide wheel II, further jacking a moving plate, further driving a lower die to ascend, and carrying out extrusion forming on an upper die and the lower die; then the upper die is reset, the motor IV is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II to ascend, the top of the molded product is further sucked to the conveying belt through the ejector pin, and then the molded product is sucked to the conveying belt through the suction nozzle to be conveyed; and then the edge of the formed product is cut by an edge cutter to obtain the required disposable degradable paper material, the rotating speed of a screw of the extruder is 300-.

As a further scheme of the invention: the forming machine comprises a base, wherein a speed reducer is fixedly mounted at one end of the top of the base, a first motor is fixedly mounted at the top of the speed reducer, one end of the speed reducer penetrates through the center of a first semicircular wheel through a rotating shaft and is rotatably connected with the base, two rotating roller mounting seats are fixedly mounted at the top of the base, a rotating roller is rotatably connected between the two rotating roller mounting seats, a rotating seat is mounted at the top of the rotating roller, one end of the bottom of the rotating seat is rotatably connected with a first guide wheel, the first guide wheel is matched with the first semicircular wheel, one end of the top of the rotating seat is fixedly mounted with a balancing weight, a fifth motor is fixedly mounted at one side of the balancing weight, an output shaft of the fifth motor is connected with a screw rod, a threaded sleeve is sleeved on the screw rod, a sliding seat is fixedly mounted on the threaded sleeve, the guide rail I is connected with a sliding seat in a sliding mode, a vertically arranged motor II is fixedly arranged on one side of the sliding seat, a rotating arm is fixedly arranged at the end part of an output shaft of the motor II, the rotating arm is of an L-shaped structure, a vertically arranged motor II is fixedly arranged at the top of the rotating arm, an output shaft of the motor II penetrates through the rotating arm and is connected with a threaded rod I, a sleeve I is sleeved on the threaded rod I, and the bottom of the sleeve I is fixedly connected with an upper die through a bolt;

a third motor is fixedly installed inside the base, an output shaft of the third motor is connected with a transmission shaft through a belt pulley and a belt, the transmission shaft is horizontally installed and is rotatably connected with the base, a second semicircular wheel is sleeved on the transmission shaft, two third guide rails are vertically installed on one side of the base, a moving plate is connected to the third guide rails in a sliding mode and is of an L-shaped structure, one side of a vertical plate of the moving plate is connected with a second guide wheel through a rotating shaft, the second guide wheel is matched with the second semicircular wheel, and a lower die is fixedly installed on the other side of the vertical plate of the moving plate; the lower die is matched with the upper die.

As a further scheme of the invention: one side of the base is vertically and slidably connected with two guide rails II, a motor mounting plate is slidably connected between the two guide rails II, an adjusting bolt is mounted in the center of one side of the motor mounting plate and is in threaded connection with one ends of the two guide rails II through a connecting plate, a vertically arranged motor IV is fixedly mounted on the motor mounting plate, an output shaft of the motor IV is connected with a vertically arranged threaded rod II through a belt pulley and a belt, and the bottom of the threaded rod II is rotatably connected with a horizontal plate of the movable plate; a second sleeve is sleeved on the second threaded rod and extends into the lower die and is connected with the ejector pin; the top of base is provided with the conveyer belt.

As a further scheme of the invention: one side of the first sleeve is connected with a clamping block in a sliding mode, a limiting hole is formed in the clamping block, an air cylinder is fixedly mounted on one side of the sliding seat, and a piston rod of the air cylinder is matched with the limiting hole.

As a further scheme of the invention: one side fixed mounting of base has the protection frame, the top fixed mounting of protection frame has the motor, and fixed mounting has the rotation axis on the output shaft of motor, the top fixed mounting of rotation axis has the cylinder telescopic link, extruder and suction nozzle are installed to one side symmetry of cylinder telescopic link.

The invention has the beneficial effects that: the invention takes macromolecular compound starch with good biodegradability as a main component, adds biodegradable polymer, mixes under specific temperature and pressure, adds nucleating agent, plasticizer, antioxidant, stabilizer, waterproof agent, hygroscopic agent, lubricant and release agent into the mixture, modifies the molecular structure and compounds by physical and chemical modification, improves the applicability of the composite material from the aspects of high temperature resistance, water resistance, oil resistance, leakage resistance, impact strength, no deformation, flexibility and the like, and leads the composite material to be corroded, absorbed, degraded, worn and ineffective in the biological environment, thereby achieving the purpose of full degradation.

Compared with the prior art, the invention has the advantages of novel components, scientific ingredients, simple preparation, lower cost, no toxicity, no pollution, complete biodegradation, capability of being used as compost after being discarded, capability of being used as a culture medium component of mushroom edible fungi or other soilless culture materials, white ash after being burnt and no molten drop. The paper-like material has good heat resistance, water resistance and oil resistance, can be molded by hot pressing, and can be widely applied to manufacturing various disposable packaging containers, especially food containers, or other products.

The screw rod is driven to rotate by the starting motor V, the screw rod pushes the sliding seat to move through the threaded sleeve, the upper die is driven to move, the horizontal position of the upper die is adjusted, then the motor II is started, the first threaded rod is driven to rotate, the first threaded rod drives the first sleeve to rotate, the upper die is driven to lift, the height of the upper die is adjusted, and different types of dies can be conveniently adapted by adjusting the position of the upper die; meanwhile, one side of the first sleeve is connected with a clamping block in a sliding mode, the height of the clamping block can be adjusted by driving the screw rod through the motor, even if the first sleeve moves up and down, the clamping block can still be kept at the same height, a piston rod of the air cylinder can be conveniently inserted into a limiting hole formed in the clamping block to position the first sleeve, and the problem that an upper die shakes in the extrusion forming process to cause inaccurate positioning is avoided;

the method comprises the following steps that firstly, a motor is started, raw materials are mixed and melted to obtain a melt, a balancing weight is fixedly installed at one end of the top of a rotating seat, the upper die can be guaranteed to be in a lifting state at the latest through the arrangement of the balancing weight, and the upper die can be guaranteed to naturally lift under the action of the balancing weight after a half circle of rotation of a semicircular wheel is carried out through the arrangement of the balancing weight, so that the circular work is completed; then starting a motor six to drive a rotating arm to rotate, wherein the rotating arm drives a sleeve I to rotate, and a lower die is separated from an upper die, so that the extruder is prevented from touching the upper die in the rotating process; then starting a motor to drive a rotating shaft to rotate and further drive the extruder to rotate to reach the upper part of the lower die, then starting a telescopic rod of a cylinder to drive the extruder to descend, opening a discharge port to discharge materials into the lower die, then resetting the extruder, starting a motor II again, resetting a sleeve I, enabling the lower die to be opposite to the upper die, starting the cylinder at the moment, driving a piston rod to be inserted into a limiting hole formed in a clamping block, then starting a motor I, driving a semicircular wheel I to rotate after speed reduction through a speed reducer, enabling the semicircular wheel I to be matched with a guide wheel I, further driving a rotating seat to rotate, inserting the upper die into the lower die, simultaneously starting a motor III, driving a transmission shaft to rotate through a belt pulley and a belt, driving a semicircular wheel II to rotate, enabling the semicircular wheel II to be matched with the guide wheel II, further jacking a moving plate to further drive the lower die, meanwhile, the lower die can perform reciprocating motion circularly and extrusion molding conveniently by the arrangement of the second semicircular wheel; then the upper die is reset, the motor IV is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II to ascend, the top of the molded product is further sucked to the conveying belt through the ejector pin, and then the molded product is sucked to the conveying belt through the suction nozzle to be conveyed; the whole equipment has high automation degree, can work circularly and improves the working efficiency.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall construction of the molding machine of the present invention;

FIG. 2 is a schematic view of the whole structure of the molding machine of the present invention after the extruder is disassembled;

FIG. 3 is a schematic view of a molding machine according to the present invention;

FIG. 4 is a schematic isometric view of a lower mold of the present invention;

FIG. 5 is a schematic side view of another isometric configuration of a lower mold of the present invention;

FIG. 6 is a schematic view of the overall structure of the base in the present invention;

FIG. 7 is a schematic isometric view of an upper mold in accordance with the present invention;

FIG. 8 is a schematic side view of another isometric view of the upper mold of the present invention;

FIG. 9 is a schematic view showing the overall structure of the extruder of the present invention.

In the figure: 1. a base; 2. a speed reducer; 3. a first motor; 4. a first semicircular wheel; 5. a balancing weight; 6. a rotating base; 7. a first guide rail; 8. a screw rod; 9. a sliding seat; 10. a second motor; 11. a rotating arm; 12. a first sleeve; 13. a clamping block; 14. an upper die; 15. a cylinder; 16. a lower die; 17. a protective frame; 18. a third motor; 19. a rotating roller; 20. a rotating shaft; 21. a cylinder telescopic rod; 22. an extruder; 23. a sixth motor; 24. a fourth motor; 25. a second sleeve; 26. moving the plate; 27. a drive shaft; 28. a second semicircular wheel; 29. a second guide wheel; 30. a first guide wheel; 31. a fifth motor; 32. adjusting the bolt; 33. a motor mounting plate; 34. a second guide rail; 35. a third guide rail; 36. a conveyor belt; 37. a rotating roller mounting base; 38. a suction nozzle.

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.

Referring to fig. 1-9, a disposable degraded paper material is prepared from the following raw materials in parts by weight: 52.08 to 76.92 parts of starch, 10.07 to 24.6 parts of polypropylene, 2.42 to 10.17 parts of polyethylene, 0.63 to 3.54 parts of nucleating agent, 0.08 to 0.60 part of substituted bis (benzylidene) sorbitol, 0.23 to 1.79 part of durable plasticizer, 1.55 to 4.17 parts of weather-resistant plasticizer, 0.38 to 1.80 parts of antioxidant, 0.39 to 2.38 parts of stabilizer, 0.78 to 2.63 parts of waterproof agent, 0.77 to 2.40 parts of hygroscopic agent, 0.78 to 2.98 parts of lubricant and 0.23 to 1.79 parts of release agent.

The nucleating agent is urea or caprolactam.

The durable plasticizer is a polyester plasticizer; the weather-resistant plasticizer is epoxidized soybean oil or glycerol; the antioxidant is 2, 2-methylene bis (4-methyl-6-tert-butylphenol) or tri (2, 4-di-tert-butylphenol) phosphite; the stabilizer is zinc stearate; the moisture absorbent is calcium stearate; the waterproof agent is microcrystalline wax or paraffin wax; the lubricant is talcum powder; the release agent is stearic acid.

The preparation method of the disposable degraded paper material comprises the following steps:

step one, adding starch, polypropylene ethylene and polyethylene into a high-speed mixer for mixing, wherein the running time is 1-2 minutes, the rotating speed of the high-speed mixer is 80-120 revolutions per minute, and the temperature in the high-speed mixer is 95-120 ℃;

secondly, adding the nucleating agent, the substituted di (benzylidene) sorbitol, the durable plasticizer, the weather-resistant plasticizer, the antioxidant, the stabilizer, the waterproof agent, the moisture absorbent, the lubricant and the release agent into a high-speed mixer for high-speed mixing, wherein the running time is 25-35 minutes, and the rotating speed of the high-speed mixer is 700-860 revolutions per minute;

step three, feeding materials into a cooling mixer for cooling, wherein the running time is 5-10 minutes, and the rotating speed of the cooling mixer is 50-100 revolutions per minute; discharging to obtain the required powder;

step four, powder is metered and sent into an extruder, extruded melt is sent into a forming machine for compression forming, a motor is started firstly, raw materials are mixed and melted to obtain melt, a motor six 23 is started firstly to drive a rotating arm 11 to rotate, the rotating arm 11 drives a sleeve I12 to rotate, a lower die 16 is separated from an upper die 14, then the motor is started to drive a rotating shaft 20 to rotate, further a extruder 22 is driven to rotate to reach the upper part of the lower die 16, then an air cylinder telescopic rod 21 is started to drive the extruder 22 to descend, a discharge opening is opened to discharge the material into the lower die 16, then the extruder 22 is reset, the motor six 23 is started again, the sleeve I12 is reset, the lower die 16 is opposite to the upper die 14, at the moment, the air cylinder 15 is started to drive a piston rod to be inserted into a limiting hole formed in a clamping block 13, then a motor I3 is started, a semicircular wheel I4 is driven to rotate after the speed, the rotating seat 6 is further driven to rotate, the upper die 14 is inserted into the lower die 16, the motor III 18 is started at the same time, the transmission shaft 27 is driven to rotate through a belt pulley and a belt, the transmission shaft 27 drives the semicircular wheel II 28 to rotate, the semicircular wheel II 28 is matched with the guide wheel II 29, the moving plate 26 is jacked up, the lower die 16 is further driven to ascend, and the upper die 14 and the lower die 16 are extruded and formed; then the upper die 14 is reset, the motor IV 24 is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II 25 to ascend, the top of the molded product is further sucked to the conveying belt 36 through the ejector pins, and then the molded product is sucked to the conveying belt 36 through the suction nozzle 38 to be conveyed; and then the edge of the formed product is cut by an edge cutter to obtain the required disposable degradable paper material, the rotating speed of a screw of the extruder is 300-.

The forming machine comprises a base 1, wherein a speed reducer 2 is fixedly mounted at one end of the top of the base 1, a motor I3 is fixedly mounted at the top of the speed reducer 2, one end of the speed reducer 2 penetrates through the center of a semicircular wheel I4 through a rotating shaft and is rotatably connected with the base 1, two rotating roller mounting seats 37 are fixedly mounted at the top of the base 1, a rotating roller 19 is rotatably connected between the two rotating roller mounting seats 37, a rotating seat 6 is mounted at the top of the rotating roller 19, one end of the bottom of the rotating seat 6 is rotatably connected with a guide wheel I30, the guide wheel I30 is matched with the semicircular wheel I4, a balancing weight 5 is fixedly mounted at one end of the top of the rotating seat 6, a motor V31 is fixedly mounted at one side of the balancing weight 5, an output shaft of the motor V31 is connected with a screw rod 8, a threaded sleeve is sleeved on the screw rod 8, and a, the top of the rotating seat 6 is horizontally provided with two first guide rails 7, the first guide rails 7 are in sliding connection with a sliding seat 9, one side of the sliding seat 9 is fixedly provided with a vertically arranged motor six 23, the end part of an output shaft of the motor six 23 is fixedly provided with a rotating arm 11, the rotating arm 11 is of an L-shaped structure, the top of the rotating arm 11 is fixedly provided with a vertically arranged motor two 10, the output shaft of the motor two 10 penetrates through the rotating arm 11 to be connected with a first threaded rod, a first sleeve 12 is sleeved on the first threaded rod, and the bottom of the first sleeve 12 is fixedly connected with an upper die 14 through a bolt;

a third motor 18 is fixedly mounted inside the base 1, an output shaft of the third motor 18 is connected with a transmission shaft 27 through a belt pulley and a belt, the transmission shaft 27 is horizontally mounted and is rotatably connected with the base 1, a second semicircular wheel 28 is sleeved on the transmission shaft 27, two third guide rails 35 are vertically mounted on one side of the base 1, a moving plate 26 is connected onto the third guide rails 35 in a sliding manner, the moving plate 26 is of an L-shaped structure, one side of a vertical plate of the moving plate 26 is connected with a second guide wheel 29 through a rotating shaft, the second guide wheel 29 is matched with the second semicircular wheel 28, and a lower die 16 is fixedly mounted on the other side of the vertical plate of the moving plate 26; the lower die 16 is matched with the upper die 14, and the shapes of the lower die 16 and the upper die 14 can be circular, oval and the like; the second sleeve 25 can be connected to the ejector pin in the lower mold 16 regardless of the shape of the lower mold 16.

Two guide rails II 34 are connected to one side of the base 1 in an up-and-down sliding mode, a motor mounting plate 33 is connected between the two guide rails II 34 in a sliding mode, an adjusting bolt 32 is installed in the center of one side of the motor mounting plate 33, the adjusting bolt 32 is in threaded connection with one end of each of the two guide rails II 34 through a connecting plate, the motor mounting plate 33 can be pushed to move by rotating the adjusting bolt 32, a motor IV 24 is driven to move, the tightness of a belt is adjusted, a vertically arranged motor IV 24 is fixedly installed on the motor mounting plate 33, an output shaft of the motor IV 24 is connected with a vertically arranged threaded rod II through a belt pulley and the belt, and the bottom of the threaded rod II is rotatably connected with a horizontal; a second sleeve 25 is sleeved on the second threaded rod, and the second sleeve 25 extends into the lower die 16 and is connected with the ejector pin; the top of the base 1 is provided with a conveyor belt 36.

One side of the first sleeve 12 is slidably connected with a clamping block 13, a limiting hole is formed in the clamping block 13, an air cylinder 15 is fixedly mounted on one side of the sliding seat 9, and a piston rod of the air cylinder 15 is matched with the limiting hole.

One side fixed mounting of base 1 has protection frame 17, the top fixed mounting of protection frame 17 has the motor, and fixed mounting has rotation axis 20 on the output shaft of motor, the top fixed mounting of rotation axis 20 has cylinder telescopic link 21, extruder 22 and suction nozzle 38 are installed to one side symmetry of cylinder telescopic link 21.

The working principle of the invention is as follows: the screw rod 8 is driven to rotate by starting the motor five 31, the screw rod 8 pushes the sliding seat 9 to move through the threaded sleeve, the upper die 14 is driven to move, the horizontal position of the upper die 14 is adjusted, then the motor two 10 is started to drive the threaded rod one to rotate, the threaded rod one drives the sleeve one to rotate, the upper die 14 is driven to lift, the height of the upper die 14 is adjusted, and different types of dies can be conveniently adapted by adjusting the position of the upper die 14; meanwhile, one side of the first sleeve 12 is connected with a clamping block 13 in a sliding mode, the motor can drive the lead screw to adjust the height of the clamping block 13, even if the first sleeve 12 moves up and down, the clamping block 13 can still be kept at the same height, a piston rod of the air cylinder 15 can be conveniently inserted into a limiting hole formed in the clamping block 13 to position the first sleeve 12, and the problem that the upper die 14 shakes in the extrusion forming process to cause inaccurate positioning is avoided;

firstly, a motor is started, raw materials are mixed and melted to obtain a melt, a balancing weight 5 is fixedly installed at one end of the top of a rotating seat 6, the upper die 14 can be ensured to be in a rising state at the latest through the arrangement of the balancing weight 5, and the upper die 14 can be ensured to naturally rise under the action of the balancing weight 5 after a semicircular wheel I4 rotates for a semicircular circle through the arrangement of the balancing weight 5, so that the circular work is completed; then starting a motor six 23 to drive the rotating arm 11 to rotate, wherein the rotating arm 11 drives the sleeve I12 to rotate, and the lower die 16 is separated from the upper die 14, so that the extruder 22 is prevented from touching the upper die 14 in the rotating process; then starting a motor to drive the rotating shaft 20 to rotate, further driving an extruder 22 to rotate, and then reaching the upper part of the lower die 16, then starting an air cylinder telescopic rod 21 to drive the extruder 22 to descend, opening a discharge port to discharge materials into the lower die 16, then resetting the extruder 22, starting a motor six 23 again, resetting a sleeve I12, enabling the lower die 16 to be opposite to an upper die 14, starting an air cylinder 15 at the moment, driving a piston rod to be inserted into a limiting hole formed in a clamping block 13, then starting a motor I3, driving a semicircular wheel I4 to rotate after speed reduction through a speed reducer 2, matching the semicircular wheel I4 with a guide wheel I30, further driving a rotating seat 6 to rotate, enabling the upper die 14 to be inserted into the lower die 16, simultaneously starting a motor III 18, driving a driving shaft 27 to rotate through a belt pulley and a belt, driving a semicircular wheel II 28 to rotate, matching the semicircular wheel II 28 with the guide wheel II 29, further jacking, the lower die 16 is driven to ascend, the upper die 14 and the lower die 16 are extruded and formed, and meanwhile, the lower die 16 can move in a reciprocating mode conveniently through the arrangement of the second semicircular wheel 28, and extrusion and forming are facilitated; then the upper die 14 is reset, the motor IV 24 is started to drive the threaded rod II to rotate, the threaded rod II drives the sleeve II 25 to ascend, the top of the molded product is further sucked to the conveying belt 36 through the ejector pins, and then the molded product is sucked to the conveying belt 36 through the suction nozzle 38 to be conveyed; the whole equipment has high automation degree, can work circularly and improves the working efficiency.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.