CN111300785A - Degradable sheet extrusion moulding machine - Google Patents
Degradable sheet extrusion moulding machine Download PDFInfo
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- CN111300785A CN111300785A CN202010267279.5A CN202010267279A CN111300785A CN 111300785 A CN111300785 A CN 111300785A CN 202010267279 A CN202010267279 A CN 202010267279A CN 111300785 A CN111300785 A CN 111300785A
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- screw extruder
- double
- feeding
- die head
- transverse
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/256—Exchangeable extruder parts
- B29C48/2562—Mounting or handling of the die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
Abstract
The invention discloses a degradable sheet extrusion forming machine, which comprises a double-screw extruder, a single-screw extruder, an automatic constant temperature device, a blanking control device and a die head hoisting device, wherein a discharge port of the double-screw extruder is communicated with a feed port of the single-screw extruder, the position of the double-screw extruder is higher than that of the single-screw extruder, the blanking control device is arranged on the feed port of the double-screw extruder, the discharge port of the single-screw extruder is provided with an extrusion die head, and the top of the extrusion die head is fixedly connected with the die head hoisting device; the machine barrels of the double-screw extruder and the single-screw extruder are divided into a plurality of independent temperature control sections, cooling water channels for reducing the temperature of the machine barrels are arranged in the temperature control sections, cast aluminum heaters for heating materials are sleeved on the outer walls of the temperature control sections, and the temperatures of the temperature control sections of the double-screw extruder and the single-screw extruder are controlled by automatic constant temperature devices. The invention effectively reduces the production cost, ensures the quality and stability of the product and greatly improves the working efficiency.
Description
Technical Field
The invention relates to sheet forming equipment, in particular to a degradable sheet extrusion forming machine.
Background
Along with the application of high polymer materials in various fields, the pollution of waste high polymer materials to the environment tends to be increasingly aggravated, plastics are the most widely applied high polymer materials and are positioned at the top of the world according to volume calculation, along with the application of a large number of high polymer materials in various fields, the pollution of waste high polymer materials to the environment tends to be increasingly aggravated, wherein plastic products for various packaging purposes have the characteristics of short service cycle and easiness in discarding, and great pollution is brought to the environment.
The development of degradable high molecular materials acceptable for the environment is an important approach for solving the environmental pollution, the biodegradable high molecular materials are decomposed into small molecular compounds through the chemical action of the nature or added microorganisms, and then enter a natural circulation process, the method is simple and effective, and has a positive effect on the environmental protection, most of disposable lunch boxes, packaging boxes and other packaging products are formed by sheet materials through various moulds through plastic suction, so that the popularization of the degradable sheet materials has a positive effect on solving the problem of waste plastic treatment.
The main production process of the prior degradable sheet is divided into 2 links, wherein in the 1 st link, a double-screw extruder is adopted to carry out mixing granulation on all materials, then, finished sheets are manufactured by various sheet extruders (such as a double-screw sheet extruder, a single-screw extruder, a conical double-screw extruder and the like) in the 2 nd link, the biggest defect of the process equipment for manufacturing the sheets is that the degradation materials need to be heated and melted twice, most degradation materials are heat-sensitive materials, the mechanical shearing accompanied in the melting process is very easy to degrade the material, and can seriously even yellow and carbonize, and the secondary melting can also bring about the increase of energy consumption, increase the production cost and be not beneficial to the development trend of energy conservation and emission reduction, in addition, two teams and crews need to be arranged for the secondary melting, so that the labor intensity and the corresponding labor cost are increased, and the arrangement of a production plan is not facilitated.
Disclosure of Invention
The invention aims to provide a degradable sheet extrusion molding machine, which effectively reduces the production cost, ensures the quality and stability of products and greatly improves the working efficiency.
In order to realize the scheme, the embodiment of the invention provides a degradable sheet extrusion forming machine, which comprises a double-screw extruder, a single-screw extruder, an automatic constant temperature device, a blanking control device and a die head hoisting device, wherein a discharge hole of the double-screw extruder is communicated with a feed hole of the single-screw extruder, the position of the double-screw extruder is higher than that of the single-screw extruder, the blanking control device is arranged on the feed hole of the double-screw extruder, an extrusion die head is arranged at the discharge hole of the single-screw extruder, and the top of the extrusion die head is fixedly connected with the die head hoisting device;
the double-screw extruder and the single-screw extruder are divided into a plurality of independent temperature control sections, a cooling water channel for reducing the temperature of the machine barrel is arranged in each temperature control section, the cooling water channels are arranged in parallel along the axial direction of the machine barrel, a cast aluminum heater for heating materials in the machine barrel is sleeved on the outer wall of each temperature control section, a water inlet and a water outlet which are communicated with the cooling water channel are respectively arranged at the bottom of the outer wall of each temperature control section, a temperature control sensor for detecting the temperature of the machine barrel is fixedly arranged at the top of the outer wall of each temperature control section, and the automatic constant temperature device controls the temperature of each temperature control section of the double-screw extruder and the single-screw extruder.
Preferably, the automatic thermostat device comprises a water tank, a heat exchanger and a plurality of electromagnetic valves, the electromagnetic valves are respectively installed on the water inlet interface, the other ends of the electromagnetic valves are fixedly installed on the water distribution pipe, a cold water pipeline is connected between the water distribution pipe and the water tank, a circulating water pump is arranged on the cold water pipeline, a hot water pipeline is connected between the water distribution pipe and a water inlet of the heat exchanger, and a water return pipeline is connected between a water outlet of the heat exchanger and the water tank.
Preferably, the die head hoisting device comprises a support frame, a transverse traveling frame and a longitudinal traveling frame, wherein the transverse traveling frame is slidably arranged on the support frame, the longitudinal traveling frame is slidably arranged on the transverse traveling frame, a cross beam is fixedly arranged on the longitudinal traveling frame, and a hanging rod is fixedly connected between the cross beam and the extrusion die head.
Preferably, the top of the support frame is provided with a pair of transverse guide rails in parallel, the bottom of the transverse traveling frame is provided with transverse wheels, the transverse wheels are arranged on the transverse guide rails in a sliding manner, and a transverse driving device drives the transverse wheels to roll along the transverse guide rails, so that the transverse traveling frame drives the extrusion die head to transversely and horizontally move.
Preferably, the top of the transverse traveling frame is provided with a pair of longitudinal guide rails in parallel, the bottom of the longitudinal traveling frame is fixedly provided with longitudinal wheels, the longitudinal wheels are arranged on the longitudinal guide rails in a sliding manner, and a longitudinal movement driving device drives the longitudinal wheels to roll along the longitudinal guide rails, so that the longitudinal traveling frame drives the extrusion die head to longitudinally and horizontally move.
Preferably, the blanking control device comprises a storage bin, a stirring rod, a stirring driving device and a feeding device, wherein the feeding device is arranged at the bottom of the storage bin, the stirring rod is rotatably arranged in the storage bin, and the stirring rod is driven by the stirring driving device to rotate.
Preferably, the feeding device comprises a feeding barrel, a scattering rod, a feeding screw and a rotary driving device, wherein a feeding port of the feeding barrel is communicated with a discharging port of the storage bin, a discharging port of the feeding barrel is communicated with a feeding port of the double-screw extruder, the feeding screw is rotatably arranged in the feeding barrel, the scattering rod is rotatably arranged at the feeding port of the feeding barrel, blades are fixedly arranged on the scattering rod, and the scattering rod and the feeding screw are driven to rotate by the rotary driving device.
Preferably, an output shaft of the rotary driving device is fixedly provided with a first driving gear and a second driving gear, one end of the feeding screw rod is fixedly provided with a first driven gear meshed with the first driving gear, one end of the scattering rod is fixedly provided with a second driven gear meshed with the second driving gear, and the rotary driving device drives the first driving gear and the second driving gear to link the feeding screw rod and the scattering rod to rotate in the same direction.
The embodiment of the invention has the following beneficial effects:
according to the invention, the arrangement of the double-screw extruder and the single-screw extruder is adopted, so that the double-screw extruder is used for ensuring uniform plasticization of materials, and the single-screw extruder is combined to improve the extrusion pressure, thereby ensuring the smoothness and stability of the product. Make double screw extruder and single screw extruder keep the constant temperature through automatic constant temperature equipment, avoid the high temperature to lead to the material to yellow, carbonization, reduce simultaneously because of the waste that the heat engine time overlength caused the material, effective reduction in production cost improves the quality of product. Prevent through blanking control device that the material that pushes away from causing built on stilts, lead to unable normal unloading, extrusion die adopts hoist device to hoist and mount, makes extrusion die can realize lateral shifting and can realize longitudinal movement again, need not the manpower and removes, the manpower that significantly reduces improves work efficiency.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the barrel of the present invention;
FIG. 3 is a schematic structural diagram of the blanking control apparatus of the present invention;
fig. 4 is a schematic view showing a structure of a portion a of fig. 3;
FIG. 5 is a top view of the die head hoist of the present invention;
FIG. 6 is a side view of the die lifting apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to fig. 1 to 6.
Referring to fig. 1, the degradable sheet extrusion molding machine comprises a double-screw extruder 1, a single-screw extruder 2, an automatic constant temperature device 3, a blanking control device 4 and a die head hoisting device 5.
The blanking control device 4 is arranged at a feed inlet of the double-screw extruder 1, a discharge outlet of the double-screw extruder 1 is communicated with a feed inlet of the single-screw extruder 2, the position of the double-screw extruder 1 is higher than that of the single-screw extruder 2, after the material enters the double-screw extruder 1, the material enters the single-screw extruder 2 through the discharge outlet of the double-screw extruder 1, the discharge outlet of the single-screw extruder 2 is fixedly provided with an extrusion die head 21, the top of the extrusion die head 21 is fixedly connected with the die head hoisting device 5, and the material enters the extrusion die head 21 through the discharge outlet of the single-screw extruder 2 to be subjected to extrusion molding.
Referring to fig. 3 and 4, the blanking control device 4 includes a storage bin 41, a stirring rod 42, a stirring driving device 43, and a feeding device 44, wherein the feeding device 44 is disposed at the bottom of the storage bin 41, the stirring rod 42 is rotatably disposed in the storage bin 41, the stirring driving device 43 preferably uses a driving motor, and the stirring driving device 43 drives the stirring rod 42 to rotate to stir the material in the storage bin 41 by inputting the material into the storage bin 41, so as to uniformly disperse the material.
The feeding device 44 comprises a feeding barrel 441, a scattering rod 442, a feeding screw 443 and a rotary driving device 444, wherein a feeding hole of the feeding barrel 441 is communicated with a discharging hole of the storage bin 41, the discharging hole of the feeding barrel 441 is communicated with a feeding hole of the twin-screw extruder 1, the feeding screw 443 is rotatably arranged in the feeding barrel 441 through a bearing, the scattering rod 442 is rotatably arranged at the feeding hole of the feeding barrel 441 through the bearing, at least two blades are fixedly arranged on the scattering rod 442, and the scattering rod 442 and the feeding screw 443 are driven to rotate through the rotary driving device 444.
The output shaft of the rotary driving device 444 is fixedly provided with first and second driving gears 444-1 and 444-2, one end of the feeding screw 443 is fixedly provided with a first driven gear 443-1 meshed with the first driving gear 444-1, one end of the scattering rod 442 is fixedly provided with a second driven gear 442-1 meshed with the second driving gear 444-2, the output shaft is driven by the rotary driving device 444 to link the first and second driving gears 444-1 and 444-2, and the feeding screw 443 and the scattering rod 442 rotate in the same direction.
The material after the stirring passes through feed cylinder 441 of discharge gate entering of feed bin 41 in, rotary drive 444 drive pay-off screw 443 is rotatory, break up pole 442 simultaneously and rotate thereupon, because multiple reasons such as material granule viscidity each other, make the material get up and can't fall by the rack, lead to the material to be maked somebody a mere figurehead, it breaks up to the material on the feed bin 41 discharge gate to drive the blade rotation through breaking up pole 442, thereby avoid appearing the condition that the windrow is maked somebody a mere figurehead, cause unable normal unloading, the material gets into and pushes away forward through pay-off screw 443 behind the feed cylinder 441, the material passes through in feed cylinder 441's discharge gate gets into double screw extruder 1, realize the automatic control blanking, the pay.
Referring to fig. 1 and 2, a cylinder 11 of a twin-screw extruder 1 and a single-screw extruder 2 is divided into a plurality of independent temperature control sections 12, cast aluminum heaters 112 for heating materials in the cylinder are sleeved on outer walls of the plurality of temperature control sections 12, so that temperatures between each temperature control section 12 are different, a temperature difference gradient is formed, cooling water channels 111 for reducing the temperature of the cylinder 11 are arranged in the plurality of temperature control sections 12, the cooling water channels 111 are vertically arranged along an axial direction of the cylinder 11, a water inlet interface 121 and a water outlet interface 122 which are communicated with the cooling water channels 111 are respectively arranged at bottoms of outer walls of the temperature control sections 12, a temperature control sensor 123 for detecting the temperature of the cylinder 11 is fixedly arranged at the top of the outer wall of the temperature control sections 12, and the automatic thermostat 3 controls the temperatures of the cylinders of the twin-screw extruder 1.
The automatic thermostat device 3 comprises a water tank 31, a heat exchanger 32 and a plurality of electromagnetic valves 33, wherein the electromagnetic valves 33 are respectively installed on the water inlet interface 121, the other ends of the electromagnetic valves 33 are fixedly arranged on a water distribution pipe 34, a cold water pipeline 311 is connected between the water distribution pipe 34 and the water tank 31, a circulating water pump 312 is arranged on the cold water pipeline 311, a hot water pipeline 321 is connected between the water distribution pipe 34 and a water inlet of the heat exchanger 32, and a water return pipeline 312 is connected between a water outlet of the heat exchanger 32 and the water tank 31.
Before the double-screw extruder 1 and the single-screw extruder 2 start to work, the cast aluminum heater 112 of each temperature control section 12 starts to heat the machine barrel 11, when the machine barrel 11 is heated to a certain temperature, the double-screw extruder 1 and the single-screw extruder 2 start to work, the mixed materials are fed into the double-screw extruder 1 through the feeding device 44 of the blanking control device 4, the materials in the double-screw extruder 1 pass through the temperature control sections 12 with different temperatures in each section, the passing materials are sheared and mixed through the relative rotation of the double screws, so that the materials are melted and form a uniformly plasticized melt, the melt is pushed forwards, the melt enters the single-screw extruder 2 through the discharge port of the double-screw extruder 1, the melt is compressed through the single screw in the single-screw extruder 2 and is pushed forwards to the extrusion die head 21, and the melt is extruded into a sheet melt with a certain width and thickness through the extrusion die head 21, the sheet melt is calendered, formed and rolled by a forming machine. Through the combined use of the double-screw extruder 1 and the single-screw extruder 2, when the double-screw extruder 1 is used for ensuring the uniform plasticization of materials, the single-screw extruder 2 is combined to improve the extrusion pressure, so that the smoothness and the stability of products are ensured.
When the temperature control sensor 123 of one of the temperature control sections 12 detects that the temperature in the cylinder 11 is too high, the electromagnetic valve 33 is automatically opened, the circulating water pump 312 starts to operate, cold water in the water tank 31 flows through the water diversion pipe 34 from the cold water pipeline 311 under pressure, enters the cooling water channel 111 through the water inlet interface 121 to cool the cylinder 11, generated hot water flows out of the water outlet interface 122 and enters the heat exchanger 32 through the hot water pipeline 321, the hot water is cooled into cold water by the heat exchanger 32, and then flows into the water tank 31 through the water return pipeline 312 to be continuously used, so that circulating cooling is realized, when the temperature control sensor 123 of the temperature control section 12 detects that the temperature is lower than a set temperature, the electromagnetic valve 33 is automatically closed, and the circulating water pump 312 stops operating, and stops cold water from entering the temperature. The heat in the machine barrel 11 is taken away through water circulation, and the automatic control of the temperature of the machine barrel 11 is realized, so that the material yellowing and carbonization caused by the overhigh temperature of the machine barrel 11 are prevented, and the material waste is avoided.
Referring to fig. 1, 5 and 6, when the extruder needs to be cleaned, the extrusion die head 21 is moved by the die head hoisting device 5, so that cleaning by workers is facilitated, the die head hoisting device 5 comprises a support frame 51, a transverse traveling frame 52 and a longitudinal traveling frame 53, the transverse traveling frame 52 is slidably arranged on the support frame 51, the longitudinal traveling frame 53 is slidably arranged on the transverse traveling frame 52, a cross beam 531 is fixedly arranged on the longitudinal traveling frame 53, and a suspension rod 211 is fixedly connected between the cross beam 531 and the extrusion die head 21.
The top of the supporting frame 51 is provided with a pair of transverse guide rails 511 in parallel, the bottom of the transverse traveling frame 52 is fixedly provided with transverse wheels 521, the transverse wheels 521 are slidably arranged on the transverse guide rails 511, one side of one transverse wheel 521 is fixedly provided with a transverse traveling driving device 522, the transverse traveling driving device 522 preferably adopts a speed reduction motor, an output shaft driven by the transverse traveling driving device 522 drives the transverse wheels 521 to roll along the transverse guide rails 511, so that the transverse traveling frame 52 drives the extrusion die head 21 to transversely and horizontally move.
The top of the transverse traveling frame 52 is provided with a pair of longitudinal guide rails 523 in parallel, the bottom of the longitudinal traveling frame 53 is respectively and fixedly provided with longitudinal wheels 532, the longitudinal wheels 532 are arranged on the longitudinal guide rails 523 in a sliding manner, one side of one longitudinal wheel 532 is fixedly provided with a longitudinal movement driving device 533, the longitudinal movement driving device 533 preferably adopts a speed reduction motor, an output shaft is driven by the longitudinal movement driving device 533 to drive the longitudinal wheels 532 to roll along the longitudinal guide rails 523, so that the longitudinal traveling frame 53 drives the extrusion die head 21 to longitudinally and horizontally move, the extrusion die head 21 can transversely and longitudinally move, the disassembly by manpower is not needed, the manpower is greatly reduced, and the cleaning of the extruder by workers is facilitated.
It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.
Claims (8)
1. A degradable sheet extrusion molding machine is characterized by comprising a double-screw extruder, a single-screw extruder, an automatic constant temperature device, a blanking control device and a die head hoisting device, wherein a discharge hole of the double-screw extruder is communicated with a feed hole of the single-screw extruder, the position of the double-screw extruder is higher than that of the single-screw extruder, the blanking control device is arranged on the feed hole of the double-screw extruder, a discharge hole of the single-screw extruder is provided with an extrusion die head, and the top of the extrusion die head is fixedly connected with the die head hoisting device;
the double-screw extruder and the single-screw extruder are divided into a plurality of independent temperature control sections, a cooling water channel for reducing the temperature of the machine barrel is arranged in each temperature control section, the cooling water channel is vertically arranged along the axial direction of the machine barrel, a cast aluminum heater for heating materials in the machine barrel is sleeved on the outer wall of each temperature control section, a water inlet and a water outlet which are communicated with the cooling water channel are respectively arranged at the bottom of the outer wall of each temperature control section, a temperature control sensor for detecting the temperature of the machine barrel is fixedly arranged at the top of the outer wall of each temperature control section, and the automatic constant temperature device controls the temperature of the temperature control sections of the double-screw extruder and the single-screw extruder.
2. The degradable sheet extrusion molding machine according to claim 1, wherein the automatic thermostat comprises a water tank, a heat exchanger, and a plurality of solenoid valves, the solenoid valves are respectively installed on the water inlet interface, the other ends of the solenoid valves are fixedly installed on a water distribution pipe, a cold water pipeline is connected between the water distribution pipe and the water tank, a circulating water pump is arranged on the cold water pipeline, a hot water pipeline is connected between the water distribution pipe and the water inlet of the heat exchanger, and a water return pipeline is connected between the water outlet of the heat exchanger and the water tank.
3. A degradable sheet material extrusion molding machine according to claim 1, wherein the die head hoisting device comprises a support frame, a transverse traveling frame and a longitudinal traveling frame, the transverse traveling frame is slidably arranged on the support frame, the longitudinal traveling frame is slidably arranged on the transverse traveling frame, a cross beam is fixedly arranged on the longitudinal traveling frame, and a hanging rod is fixedly connected between the cross beam and the extrusion die head.
4. A degradable sheet extrusion molding machine according to claim 3 wherein a pair of transverse rails are arranged in parallel on the top of the supporting frame, a transverse wheel is arranged on the bottom of the transverse traveling frame, the transverse wheel is slidably arranged on the transverse rails, and a transverse traveling driving device drives the transverse wheel to roll along the transverse rails, so that the transverse traveling frame drives the extrusion die head to transversely and horizontally move.
5. A degradable sheet extrusion molding machine according to claim 4, wherein a pair of longitudinal rails is arranged in parallel on the top of the transverse traveling frame, longitudinal wheels are fixedly arranged on the bottom of the longitudinal traveling frame, the longitudinal wheels are slidably arranged on the longitudinal rails, and the longitudinal wheels are driven by a longitudinal movement driving device to roll along the longitudinal rails, so that the longitudinal traveling frame drives the extrusion die head to longitudinally and horizontally move.
6. A degradable sheet extrusion molding machine according to claim 1 wherein the blanking control device includes a bin, a stirring rod, a stirring driving device, and a feeding device, the feeding device is disposed at the bottom of the bin, the stirring rod is rotatably disposed in the bin, and the stirring rod is driven by the stirring driving device to rotate.
7. The degradable sheet extrusion molding machine according to claim 6, wherein the feeding device comprises a feeding barrel, a breaking rod, a feeding screw and a rotary driving device, a feeding port of the feeding barrel is communicated with a discharging port of the storage bin, a discharging port of the feeding barrel is communicated with a feeding port of the twin-screw extruder, the feeding screw is rotatably arranged in the feeding barrel, the breaking rod is rotatably arranged at the feeding port of the feeding barrel, blades are fixedly arranged on the breaking rod, and the breaking rod and the feeding screw are driven to rotate by the rotary driving device.
8. A degradable sheet extrusion molding machine according to claim 7 wherein said rotary drive device has an output shaft fixedly provided with a first and a second drive gear, one end of said feed screw is fixedly provided with a first driven gear engaged with said first drive gear, one end of said breaker bar is fixedly provided with a second driven gear engaged with said second drive gear, said rotary drive device drives said first and second drive gears to link said feed screw and said breaker bar for rotation in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267279.5A CN111300785A (en) | 2020-04-08 | 2020-04-08 | Degradable sheet extrusion moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010267279.5A CN111300785A (en) | 2020-04-08 | 2020-04-08 | Degradable sheet extrusion moulding machine |
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| Publication Number | Publication Date |
|---|---|
| CN111300785A true CN111300785A (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010267279.5A Pending CN111300785A (en) | 2020-04-08 | 2020-04-08 | Degradable sheet extrusion moulding machine |
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| Country | Link |
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| CN (1) | CN111300785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603818A (en) * | 2022-03-24 | 2022-06-10 | 江西理工大学 | Double-screw extruder for biodegradable material |
-
2020
- 2020-04-08 CN CN202010267279.5A patent/CN111300785A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603818A (en) * | 2022-03-24 | 2022-06-10 | 江西理工大学 | Double-screw extruder for biodegradable material |
| CN114603818B (en) * | 2022-03-24 | 2023-08-18 | 江西理工大学 | Double-screw extruder for biodegradable materials |
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