CN116728734A - Extrusion mechanism and double-screw extruder with same - Google Patents
Extrusion mechanism and double-screw extruder with same Download PDFInfo
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- CN116728734A CN116728734A CN202310869678.2A CN202310869678A CN116728734A CN 116728734 A CN116728734 A CN 116728734A CN 202310869678 A CN202310869678 A CN 202310869678A CN 116728734 A CN116728734 A CN 116728734A
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- frame
- inlet pipe
- filter screen
- pipe
- extrusion
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- 238000001125 extrusion Methods 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 238000007664 blowing Methods 0.000 claims abstract description 26
- 239000011261 inert gas Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims description 35
- 238000002955 isolation Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 abstract description 58
- 239000007789 gas Substances 0.000 abstract description 18
- 238000007254 oxidation reaction Methods 0.000 abstract description 10
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000003647 oxidation Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000006731 degradation reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000002845 discoloration Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention provides an extrusion mechanism and a double-screw extruder with the same, which comprise a frame, wherein an extrusion hole is formed in the end part of the frame, two extrusion rotating motors are fixedly arranged on the outer side of one end, far away from the extrusion hole, of the frame, screws are fixedly arranged at the output ends of the extrusion rotating motors, the screws are positioned in the frame, an inert gas blowing device is communicated with the bottom of the frame, and a vacuumizing device is communicated with the top of the frame; the filter screen plate is characterized in that a positioning block is fixedly arranged on the inner wall of the feeding pipe, a first spring is connected to the top of the positioning block, the top of the first spring is connected to the bottom of the filter screen plate, and a plurality of filter screen holes are formed in the filter screen plate. The invention provides an extrusion mechanism and a double-screw extruder with the same, which can be used for extracting gas and volatile matters from materials, avoiding oxidation of the materials, filtering impurities from the materials and enabling the quality of finished products to be higher.
Description
Technical Field
The invention relates to the technical field of material extrusion machinery, in particular to an extrusion mechanism and a double-screw extruder with the same.
Background
The plastic injection molding equipment mostly adopts an extrusion principle, after plastic is added into a machine barrel of an extruder from a hopper, the plastic is forced to be pushed to the machine head direction by threads along with the rotation of a screw rod, the volume between the threads is gradually reduced, so that the advancing material is subjected to great pressure, and meanwhile, the advancing material is heated by a heat source of the machine barrel; in addition, when the plastic is subjected to forces such as compression, shearing, stirring and the like during movement, a large amount of heat is generated by friction between the plastic and the barrel and between the screw and molecules of the plastic. The temperature of the plastic in the machine barrel is continuously increased, so that the physical state of the plastic is gradually changed from a glass state to a high-elastic state, and finally the plastic becomes a viscous state, and the plastic is completely plasticized; the screw is always rotated stably, so that the plasticized material is extruded from the die opening of the machine head in equal pressure and equal quantity to form a plastic product with a certain shape, and the plastic product is cooled and shaped to finish extrusion molding.
Among the prior art, a precision twin-screw extruder of publication No. CN113211761A, including the location base plate, the upper end fixed mounting of location base plate has drive mechanism, feeding mechanism, preheating mechanism and extrusion pipe, feeding mechanism and preheating mechanism intercommunication, preheating mechanism and extrusion pipe intercommunication, fixedly mounted with vacuum generator on the preheating mechanism, preheating mechanism and vacuum generator intercommunication, the output shaft of drive mechanism is first screw rod and second screw rod fixedly connected with respectively, first screw rod is the same with second screw rod length, first screw rod rotates in opposite directions with the second screw rod, feeding mechanism and preheating mechanism are all run through in proper order to the one end of first screw rod and second screw rod and be located the extrusion pipe, the discharge gate has been seted up to the one end that preheating mechanism was kept away from to the extrusion pipe, and this precision twin-screw extruder is through preheating, and the heating effect is good, avoids the material that melts earlier and later melting material to cause extrudate everywhere inhomogeneous, through vacuum generator, reduces the bubble production.
However, during the use process, the method still has obvious defects: 1. in the extrusion process of the double-screw extruder, the materials are easy to oxidize or degrade at high temperature and high pressure, so that the materials are discolored, and gases and volatile matters in the materials cannot be discharged in time, so that the appearance quality of the product is affected; 2. the device directly processes and extrudes the materials, and if the materials contain large-particle impurities, the quality of finished products can be greatly influenced, so that improvement is needed.
Disclosure of Invention
The invention aims to provide an extrusion mechanism and a double-screw extruder with the same, so as to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the extrusion mechanism comprises a frame, wherein an extrusion hole is formed in the end part of the frame, two extrusion rotating motors are fixedly arranged on the outer side of one end, far away from the extrusion hole, of the frame, screw rods are fixedly arranged at the output ends of the extrusion rotating motors, the screw rods are positioned in the frame, an inert gas blowing device is arranged at the bottom of the frame in a communicating manner, and a vacuumizing device is arranged at the top of the frame in a communicating manner;
the top intercommunication of frame is provided with the inlet pipe, the fixed feeder hopper that is provided with in top of inlet pipe, be provided with agitating unit in the inlet pipe, fixedly provided with locating piece on the inner wall of inlet pipe, the top connection of locating piece is provided with first spring, the top of first spring is connected in the bottom of filter screen board, set up a plurality of filter screen holes on the filter screen board, the diameter of filter screen board is less than the internal diameter of inlet pipe, just connect between filter screen board and the inlet pipe inner wall and be provided with the elastic sealing pad, the side of locating piece is embedded to be provided with the bearing frame, articulated being provided with the articulated rod in the bearing frame, fixedly provided with a plurality of blades and hollow plate on the articulated rod, the movable plate is provided with the fly leaf in the inner chamber of hollow plate, the connection is provided with the second spring between fly leaf and the hollow plate inner chamber bottom, one side of fly leaf is kept away from the fly leaf in the second spring is fixedly provided with the dead lever, fixedly provided with the baffle on the inner wall of filter screen board, just the baffle is located the below of filter screen board, connect to be provided with the elastic sealing pad between baffle board and the bottom plate and the inlet pipe inner wall, be provided with the air inlet pipe, the elastic sealing pad is provided with the air inlet pipe in the side of air duct, the air duct is provided with the air inlet pipe, the one-way valve is provided with the air-conditioner, the air inlet pipe is provided with the air inlet pipe, the air duct, the air valve is provided with the one-way seal, and is sealed in the side of the air duct.
Preferably, the inert gas blowing-in device comprises an air inlet channel arranged on the bottom wall of the frame, a plurality of air outlet pipes are communicated with one side, close to the inside of the frame, of the air inlet channel, an air inlet pipe is communicated with one side, far away from the air outlet pipes, of the air inlet channel, and an air inlet pump is arranged on the air inlet pipe.
Preferably, a first isolation net is fixedly arranged in the air outlet pipe.
Preferably, the vacuumizing device comprises a fixed block, an exhaust passage is arranged in the fixed block, one side, close to the inside of the frame, of the exhaust passage is communicated with a plurality of exhaust branch pipes, one side, far away from the exhaust branch pipes, of the exhaust passage is communicated with an exhaust pipe, and a vacuum pump is arranged on the exhaust pipe.
Preferably, a second isolation net is fixedly arranged in the exhaust branch pipe.
Preferably, the stirring device comprises a stirring rotating motor, the stirring rotating motor is fixedly arranged on the outer side of the feeding pipe, a stirring shaft is fixedly arranged at the output end of the stirring rotating motor, the stirring shaft is positioned in the feeding pipe, and a plurality of stirring rods are fixedly arranged on the stirring shaft.
Preferably, the bottom of the frame is symmetrically and fixedly provided with a base.
A twin-screw extruder comprises the extrusion mechanism.
Compared with the prior art, the invention has the beneficial effects that:
1. the vacuum device is communicated with the top of the frame, and the gas and volatile matters in the materials are pumped out through the negative pressure effect, so that the possibility of oxidization and degradation is reduced, and the discoloration of the materials due to oxidization or decomposition is avoided;
2. the inert gas blowing device is communicated with the bottom of the rack, and after the inert gas blowing device is started, the volatilization of active gas contained in the material can be accelerated, so that chemical reaction between other additives such as the material and the active gas is avoided, and the stability of the material is ensured;
3. according to the invention, the filter screen plate is arranged in the feed pipe, large particle impurities in materials can be filtered and removed in advance, the product quality is ensured, after the filter screen holes in the filter screen plate are blocked, the inert gas blowing device can be started, the vacuumizing device is closed, the extrusion holes are blocked, at the moment, the air flow blows the blades, so that the impact balls intermittently impact the filter screen plate, and then the blocking objects in the filter screen holes are vibrated out, so that the discharging is smoother, and frequent manual cleaning is not needed.
The invention provides an extrusion mechanism and a double-screw extruder with the same, which can be used for extracting gas and volatile matters from materials, avoiding oxidation of the materials, filtering impurities from the materials and enabling the quality of finished products to be higher.
Drawings
FIG. 1 is a schematic cross-sectional front view of a body structure of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is an enlarged view of the invention at B in FIG. 1;
fig. 4 is a schematic view of the related structure on the hinge rod of the present invention.
In the figure: 1 frame, 101 extrusion hole, 2 extrusion rotating motor, 3 screw rod, 401 air inlet channel, 402 air outlet pipe, 403 first isolation net, 5 air inlet pipe, 6 air inlet pump, 7 fixed block, 801 air outlet channel, 802 air outlet branch pipe, 803 second isolation net, 804 air outlet pipe, 9 vacuum pump, 10 feeding pipe, 11 feeding hopper, 12 stirring rotating motor, 13 stirring shaft, 14 stirring rod, 15 positioning block, 16 first spring, 17 filter screen plate, 171 filter screen hole, 18 elastic sealing pad, 19 bearing seat, 20 hinging rod, 21 blade, 22 hollow plate, 23 movable plate, 24 second spring, 25 bottom rod, 26 impact ball, 27 baffle, 28 hollow elastic plate, 29 third spring, 30 air inlet pipe, 31 third isolation net, 32 first check valve, 33 air blowing cover, 34 exhaust pipe, 35 second check valve, 36 base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 4, the present invention provides a technical solution:
embodiment one:
the utility model provides an extrusion device, including frame 1, frame 1's tip begins to have extrusion hole 101, the material is extruded from extrusion hole 101, frame 1 keeps away from extrusion hole 101's one end outside fixedly and is provided with two extrusion rotating electrical machines 2, extrusion rotating electrical machines 2's output is all fixed and is provided with screw rod 3, and screw rod 3 is located frame 1's inside, when using, two extrusion rotating electrical machines 2 start for two screw rods 3 take place to rotate, and then advance and extrude the material, frame 1's bottom intercommunication is provided with inert gas blowing device, inert gas blowing device starts the back, can accelerate the active gas that contains in the material volatilizees, and then avoid taking place chemical reaction between other additives such as material and the active gas, ensure that the property of material is stable, frame 1's top intercommunication is provided with evacuating device, evacuating device starts the back, through negative pressure effect with gas and the volatile in the material take out, reduce oxidation and degradation's possibility, avoid the material to change color because of oxidation or decomposition.
The top of the frame 1 is communicated with a feeding pipe 10, a feeding hopper 11 is fixedly arranged at the top of the feeding pipe 10, materials can be directly poured into the feeding hopper 11 and then enter the frame 1 along the feeding pipe 10, a stirring device is arranged in the feeding pipe 10, a positioning block 15 is fixedly arranged on the inner wall of the feeding pipe 10, a first spring 16 is arranged at the top of the positioning block 15 in a connecting way, the first spring 16 has good telescopic elasticity, the top of the first spring 16 is connected to the bottom of a filter screen plate 17, a plurality of filter screen holes 171 are arranged on the filter screen plate 17, the materials can pass through the filter screen holes 171, large-particle solid impurities can be blocked, the diameter of the filter screen plate 17 is smaller than the inner diameter of the feeding pipe 10, an elastic sealing gasket 18 is arranged between the filter screen plate 17 and the inner wall of the feeding pipe 10, the elastic sealing gasket 18 can stretch or compress when being stressed, and then the filter screen plate 17 and the inner wall of the feeding pipe 10 are blocked, there is no gap, a bearing seat 19 is embedded in the side surface of the positioning block 15 to prevent the material from being blocked, a hinge rod 20 is hinged in the bearing seat 19, the hinge rod 20 can smoothly rotate due to the arrangement of the bearing seat 19, a plurality of blades 21 and hollow plates 22 are fixedly arranged on the hinge rod 20, when air flows blow to the blades 21, the blades 21 can drive the hinge rod 20 to rotate, a movable plate 23 is movably arranged in the inner cavity of the hollow plate 22, the movable plate 23 can move along the inner cavity of the hollow plate 22, the inner cavity of the hollow plate 22 is convex, the diameter of the movable plate 23 is larger than that of a bottom rod 25 to prevent the movable plate 23 from separating from the inner cavity of the hollow plate 22, a second spring 24 is connected between the movable plate 23 and the bottom of the inner cavity of the hollow plate 22, one side of the movable plate 23 away from the second spring 24 is fixedly provided with the bottom rod 25, the end of the bottom rod 25 is fixedly provided with the impact ball 26, when the articulated rod 20 rotates, the impact ball 26 intermittently impacts the filter screen plate 17, and then the plugs in the filter screen holes 171 are vibrated out, so that the discharge is smoother, frequent manual cleaning is not needed, the baffle 27 is fixedly arranged on the inner wall of the feed pipe 10, the baffle 27 is positioned below the filter screen plate 17, a hollow elastic plate 28 is connected between the baffle 27 and the bottom of the filter screen plate 17, a third spring 29 is arranged in the hollow elastic plate 28, the hollow elastic plate 28 and the third spring 29 have good telescopic elasticity, the up-and-down vibration of the filter screen plate 17 can be adapted, an air inlet pipe 30 is arranged on the bottom plate of the baffle 27, a third isolation net 31 and a first one-way valve 32 are arranged in the air inlet pipe 30, the air can only enter the air inlet pipe 30 through the outside, no backflow is possible, an air blowing cover 33 is fixedly arranged on one side of the air inlet pipe 30, which is close to the blade 21, the inner wall of the feed pipe 10, the elastic sealing pad 18, the filter screen plate 17, the hollow elastic plate 28 and the baffle 27 form an isolation space, the hollow elastic plate 28 and the baffle 27, the side wall 10 are provided with a third spring 29, the air outlet pipe 34 is arranged on the side wall of the position, the air outlet pipe 34 is provided with the air outlet pipe 34, the air blowing pipe 34 is only through the air blowing pipe 34, the air is blown out from the air inlet pipe 34, the air blowing pipe 34 is enabled to be intermittently arranged in the air blowing out from the air outlet pipe 17, and the air outlet pipe 34, and the air exhaust pipe 34 is enabled to be intermittently and the air blowing out from the air exhaust pipe 17, and the air exhaust pipe 34, and the air is blown out through the air exhaust pipe 34, and the air exhaust device is intermittently and the air exhaust device is blown out through the air and the air exhaust valve air.
Embodiment two:
the extrusion mechanism comprises a frame 1, an extrusion hole 101 is formed at the end part of the frame 1, materials are extruded from the extrusion hole 101, two extrusion rotating motors 2 are fixedly arranged at the outer side of one end, far away from the extrusion hole 101, of the frame 1, screw rods 3 are fixedly arranged at the output ends of the extrusion rotating motors 2, the screw rods 3 are positioned in the frame 1, when the extrusion mechanism is used, the two extrusion rotating motors 2 are started to enable the two screw rods 3 to rotate so as to further push and extrude the materials forwards, an inert gas blowing device is arranged at the bottom of the frame 1 in a communicated manner, after the inert gas blowing device is started, active gas contained in the materials can be accelerated to volatilize, further chemical reactions between other additives such as the materials and the active gas are avoided, and the stability of the materials is ensured, the air inlet channel 401 is communicated with a plurality of air outlet pipes 402 near one side of the inside of the frame 1, a first isolation net 403 is fixedly arranged in the air outlet pipes 402, the first isolation net 403 can prevent materials from entering the air outlet pipes 402, one side of the air inlet channel 401 far away from the air outlet pipes 402 is communicated with an air inlet pipe 5, an air inlet pump 6 is arranged on the air inlet pipe 5, when the air inlet channel 401 is used, the air inlet pipe 5 is communicated with an external inert gas generating device, the air inlet pump 6 is started, so that inert gas is blown out from the air outlet pipes 402 finally after passing through the air inlet pipe 5 and the air inlet channel 401, a vacuumizing device is arranged at the top of the frame 1, and after the vacuumizing device is started, gas and volatile matters in the materials are pumped out through the negative pressure effect, so that the possibility of oxidization and degradation is reduced, and the discoloration of the materials due to oxidization or decomposition is avoided, in particular, the vacuumizing device comprises a fixed block 7, the fixed block 7 is provided with an exhaust channel 801, one side of the exhaust channel 801 close to the inside of the rack 1 is communicated with a plurality of exhaust branch pipes 802, a second isolation net 803 is fixedly arranged in each exhaust branch pipe 802, one side of the exhaust channel 801 far away from each exhaust branch pipe 802 is communicated with an exhaust pipe 804, a vacuum pump 9 is arranged on each exhaust pipe 804, when the vacuum pump 9 is started in use, gas in the rack 1 can be exhausted outwards through each exhaust branch pipe 802, each exhaust channel 801 and each exhaust pipe 804 in sequence.
The top of the frame 1 is communicated with a feeding pipe 10, a feeding hopper 11 is fixedly arranged at the top of the feeding pipe 10, materials can be directly poured into the feeding hopper 11 and then enter the frame 1 along the feeding pipe 10, a stirring device is arranged in the feeding pipe 10, a positioning block 15 is fixedly arranged on the inner wall of the feeding pipe 10, a first spring 16 is arranged at the top of the positioning block 15 in a connecting way, the first spring 16 has good telescopic elasticity, the top of the first spring 16 is connected to the bottom of a filter screen plate 17, a plurality of filter screen holes 171 are arranged on the filter screen plate 17, the materials can pass through the filter screen holes 171, large-particle solid impurities can be blocked, the diameter of the filter screen plate 17 is smaller than the inner diameter of the feeding pipe 10, an elastic sealing gasket 18 is arranged between the filter screen plate 17 and the inner wall of the feeding pipe 10, the elastic sealing gasket 18 can stretch or compress when being stressed, and then the filter screen plate 17 and the inner wall of the feeding pipe 10 are blocked, there is no gap, a bearing seat 19 is embedded in the side surface of the positioning block 15 to prevent the material from being blocked, a hinge rod 20 is hinged in the bearing seat 19, the hinge rod 20 can smoothly rotate due to the arrangement of the bearing seat 19, a plurality of blades 21 and hollow plates 22 are fixedly arranged on the hinge rod 20, when air flows blow to the blades 21, the blades 21 can drive the hinge rod 20 to rotate, a movable plate 23 is movably arranged in the inner cavity of the hollow plate 22, the movable plate 23 can move along the inner cavity of the hollow plate 22, the inner cavity of the hollow plate 22 is convex, the diameter of the movable plate 23 is larger than that of a bottom rod 25 to prevent the movable plate 23 from separating from the inner cavity of the hollow plate 22, a second spring 24 is connected between the movable plate 23 and the bottom of the inner cavity of the hollow plate 22, one side of the movable plate 23 away from the second spring 24 is fixedly provided with the bottom rod 25, the end of the bottom rod 25 is fixedly provided with the impact ball 26, when the articulated rod 20 rotates, the impact ball 26 intermittently impacts the filter screen plate 17, and then the plugs in the filter screen holes 171 are vibrated out, so that the discharge is smoother, frequent manual cleaning is not needed, the baffle 27 is fixedly arranged on the inner wall of the feed pipe 10, the baffle 27 is positioned below the filter screen plate 17, a hollow elastic plate 28 is connected between the baffle 27 and the bottom of the filter screen plate 17, a third spring 29 is arranged in the hollow elastic plate 28, the hollow elastic plate 28 and the third spring 29 have good telescopic elasticity, the up-and-down vibration of the filter screen plate 17 can be adapted, an air inlet pipe 30 is arranged on the bottom plate of the baffle 27, a third isolation net 31 and a first one-way valve 32 are arranged in the air inlet pipe 30, the air can only enter the air inlet pipe 30 through the outside, no backflow is possible, an air blowing cover 33 is fixedly arranged on one side of the air inlet pipe 30, which is close to the blade 21, the inner wall of the feed pipe 10, the elastic sealing pad 18, the filter screen plate 17, the hollow elastic plate 28 and the baffle 27 form an isolation space, the hollow elastic plate 28 and the baffle 27, the side wall 10 are provided with a third spring 29, the air outlet pipe 34 is arranged on the side wall of the position, the air outlet pipe 34 is provided with the air outlet pipe 34, the air blowing pipe 34 is only through the air blowing pipe 34, the air is blown out from the air inlet pipe 34, the air blowing pipe 34 is enabled to be intermittently arranged in the air blowing out from the air outlet pipe 17, and the air outlet pipe 34, and the air exhaust pipe 34 is enabled to be intermittently and the air blowing out from the air exhaust pipe 17, and the air exhaust pipe 34, and the air is blown out through the air exhaust pipe 34, and the air exhaust device is intermittently and the air exhaust device is blown out through the air and the air exhaust valve air.
The bottom of the frame 1 is symmetrically and fixedly provided with the base 36, and the base 36 ensures that the frame 1 is more stable and has the functions of shock absorption and noise reduction.
Embodiment III:
the present embodiment further discloses and defines a specific structure of the stirring device based on the first embodiment or the second embodiment, and specifically: the stirring device comprises a stirring rotating motor 12, the stirring rotating motor 12 is fixedly arranged on the outer side of the feeding pipe 10, a stirring shaft 13 is fixedly arranged at the output end of the stirring rotating motor 12, the stirring shaft 13 is arranged in the feeding pipe 10, a plurality of stirring rods 14 are fixedly arranged on the stirring shaft 13, the stirring rotating motor 12 can be started when feeding, the stirring rotating motor 12 drives the stirring rods 14 to rotate through the stirring shaft 13, and then materials are stirred, so that the materials are mixed more uniformly, and the quality of a finished product is more stable.
A double-screw extruder comprises the extrusion mechanism.
Working principle:
when using, pour the material directly into feeder hopper 11, the material can enter into the inside of frame 1 along inlet pipe 10, and two extrusion rotating electrical machines 2 start for two screw rods 3 take place to rotate, and then advance the material and extrude, and simultaneously:
if the gas and volatile matters in the materials need to be extracted, the possibility of oxidization and degradation is reduced, and the discoloration of the materials due to oxidization or decomposition is avoided, the vacuumizing device can be started, the vacuum pump 9 is started, and the gas in the rack 1 can be sequentially discharged outwards through the exhaust branch pipe 802, the exhaust channel 801 and the exhaust pipe 804;
if the volatilization of active gas contained in the material needs to be accelerated, and further chemical reaction between other additives such as the material and the active gas is avoided, so that the property stability of the material is ensured, an inert gas blowing device can be started, when the material is used, the air inlet pipe 5 is communicated with an external inert gas generating device, the air inlet pump 6 is started, so that the inert gas is blown out from a plurality of air outlet pipes 402 after passing through the air inlet pipe 5 and the air inlet channel 401, and a vacuumizing device can be started at the moment to accelerate the extraction of the gas;
if the screen holes 171 of the screen plate 17 are blocked by the material, at this time, the inert gas blowing device can be turned on, the vacuumizing device is turned off, and the extrusion holes 101 are blocked, at this time, the air flow is blown out from the blowing cover 33, and the blades 21 are blown to enable the hinge rod 20 to rotate, the hollow plate 22 rotates along with the air flow, the impact ball 26 intermittently impacts the screen plate 17, the screen plate 17 vibrates up and down, the first spring 16, the second spring 24 and the third spring 29 are compressed or stretched along with the impact ball, and then the blocking objects in the screen holes 171 are vibrated out, so that the material is smoother, frequent manual cleaning is not needed, the cleanliness of the material is improved, and the quality of the finished product is effectively improved.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. An extrusion mechanism, includes frame, its characterized in that: the extrusion device comprises a frame, wherein an extrusion hole is formed in the end part of the frame, two extrusion rotating motors are fixedly arranged outside one end, far away from the extrusion hole, of the frame, screw rods are fixedly arranged at the output ends of the extrusion rotating motors, the screw rods are positioned in the frame, an inert gas blowing device is arranged at the bottom of the frame in a communicated manner, and a vacuumizing device is arranged at the top of the frame in a communicated manner;
the top intercommunication of frame is provided with the inlet pipe, the fixed feeder hopper that is provided with in top of inlet pipe, be provided with agitating unit in the inlet pipe, fixedly provided with locating piece on the inner wall of inlet pipe, the top connection of locating piece is provided with first spring, the top of first spring is connected in the bottom of filter screen board, set up a plurality of filter screen holes on the filter screen board, the diameter of filter screen board is less than the internal diameter of inlet pipe, just connect between filter screen board and the inlet pipe inner wall and be provided with the elastic sealing pad, the side of locating piece is embedded to be provided with the bearing frame, articulated being provided with the articulated rod in the bearing frame, fixedly provided with a plurality of blades and hollow plate on the articulated rod, the movable plate is provided with the fly leaf in the inner chamber of hollow plate, the connection is provided with the second spring between fly leaf and the hollow plate inner chamber bottom, one side of fly leaf is kept away from the fly leaf in the second spring is fixedly provided with the dead lever, fixedly provided with the baffle on the inner wall of filter screen board, just the baffle is located the below of filter screen board, connect to be provided with the elastic sealing pad between baffle board and the bottom plate and the inlet pipe inner wall, be provided with the air inlet pipe, the elastic sealing pad is provided with the air inlet pipe in the side of air duct, the air duct is provided with the air inlet pipe, the one-way valve is provided with the air-conditioner, the air inlet pipe is provided with the air inlet pipe, the air duct, the air valve is provided with the one-way seal, and is sealed in the side of the air duct.
2. An extrusion mechanism as recited in claim 1, wherein: the inert gas blowing-in device comprises an air inlet channel arranged on the bottom wall of the frame, a plurality of air outlet pipes are communicated with one side, close to the inside of the frame, of the air inlet channel, an air inlet pipe is communicated with one side, far away from the air outlet pipes, of the air inlet channel, and an air inlet pump is arranged on the air inlet pipe.
3. An extrusion mechanism as recited in claim 2, wherein: the air outlet pipe is fixedly provided with a first isolation net.
4. An extrusion mechanism as recited in claim 1, wherein: the vacuumizing device comprises a fixed block, wherein an exhaust passage is arranged in the fixed block, one side, close to the inside of the frame, of the exhaust passage is communicated with a plurality of exhaust branch pipes, one side, far away from the exhaust branch pipes, of the exhaust passage is communicated with an exhaust pipe, and a vacuum pump is arranged on the exhaust pipe.
5. An extrusion mechanism as recited in claim 4, wherein: and a second isolation net is fixedly arranged in the exhaust branch pipe.
6. An extrusion mechanism as recited in claim 1, wherein: the stirring device comprises a stirring rotating motor, the stirring rotating motor is fixedly arranged on the outer side of the feeding pipe, a stirring shaft is fixedly arranged at the output end of the stirring rotating motor, the stirring shaft is positioned in the feeding pipe, and a plurality of stirring rods are fixedly arranged on the stirring shaft.
7. An extrusion mechanism as recited in claim 1, wherein: the bottom of the frame is symmetrically and fixedly provided with a base.
8. A twin screw extruder, characterized in that: an extrusion mechanism comprising any one of the above claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310869678.2A CN116728734A (en) | 2023-07-17 | 2023-07-17 | Extrusion mechanism and double-screw extruder with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310869678.2A CN116728734A (en) | 2023-07-17 | 2023-07-17 | Extrusion mechanism and double-screw extruder with same |
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| Publication Number | Publication Date |
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| CN116728734A true CN116728734A (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310869678.2A Pending CN116728734A (en) | 2023-07-17 | 2023-07-17 | Extrusion mechanism and double-screw extruder with same |
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| CN (1) | CN116728734A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117261151A (en) * | 2023-11-17 | 2023-12-22 | 新乡市创美科技股份有限公司 | Double-screw extruder for ASA resin production |
| CN117283846A (en) * | 2023-10-07 | 2023-12-26 | 江苏蟠泰新型材料科技有限公司 | Extrusion molding machine for silicon-based reinforced fiber wallboard |
-
2023
- 2023-07-17 CN CN202310869678.2A patent/CN116728734A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117283846A (en) * | 2023-10-07 | 2023-12-26 | 江苏蟠泰新型材料科技有限公司 | Extrusion molding machine for silicon-based reinforced fiber wallboard |
| CN117283846B (en) * | 2023-10-07 | 2024-03-01 | 江苏蟠泰新型材料科技有限公司 | Extrusion molding machine for silicon-based reinforced fiber wallboard |
| CN117261151A (en) * | 2023-11-17 | 2023-12-22 | 新乡市创美科技股份有限公司 | Double-screw extruder for ASA resin production |
| CN117261151B (en) * | 2023-11-17 | 2024-01-26 | 新乡市创美科技股份有限公司 | Double-screw extruder for ASA resin production |
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