CN115056377B - PAS resin modified double-screw extrusion equipment - Google Patents
PAS resin modified double-screw extrusion equipment Download PDFInfo
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- CN115056377B CN115056377B CN202210889379.0A CN202210889379A CN115056377B CN 115056377 B CN115056377 B CN 115056377B CN 202210889379 A CN202210889379 A CN 202210889379A CN 115056377 B CN115056377 B CN 115056377B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/484—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with two shafts provided with screws, e.g. one screw being shorter than the other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides PAS resin modified double-screw extrusion equipment which comprises a base, wherein an extrusion shell is arranged on the surface of the base, the top of the extrusion shell is connected with a feed hopper, a material extrusion opening is formed in the bottom of one end, far away from the feed hopper, of the extrusion shell, and a double-screw rotation driving cavity and a double-screw pushing driving cavity are connected to one end, far away from the material extrusion opening, of the extrusion shell. According to the PAS resin modified double-screw extrusion equipment, due to the arrangement of the push-out screw rod, the locking air cylinder, the cleaning wall scraping mechanism and the double-screw push-out mechanism, when carbides on the surface of the extrusion screw rod and in the extrusion cavity are required to be cleaned, the double-screw push-out mechanism is automatically connected with the push-out screw rod, the push-out screw rod can be driven to automatically push out the double screw rod from the extrusion cavity, manual disassembly and use are not required, the residual carbides on the inner wall of the extrusion cavity can be automatically scraped by the cleaning wall scraping mechanism during pushing out, the use is convenient, and the labor amount of operators is greatly reduced.
Description
Technical Field
The invention relates to the technical field of resin modification processing, in particular to PAS resin modified double-screw extrusion equipment.
Background
Polyarylene sulfide (hereinafter also abbreviated as PAS) resin represented by polyphenylene sulfide (hereinafter also abbreviated as PPS) resin has been widely used for electric/electronic equipment member materials, automobile equipment member materials, chemical equipment member materials, and the like because of its high heat resistance, chemical resistance, dimensional stability, and flame retardancy, and processing, modification, and most of bulk polymerization processes of polymers are often in a viscous flow state with a high viscosity, and most of them are required to be formed into a suitable product shape at room temperature such as pellets or sheets after the melting process is completed. The equipment used in such processes is currently mainly screw-propelled extruders, with twin screw extruders being the most common extrusion equipment.
The PAS resin monomer has the condition of insufficient high-temperature rigidity of a formed product, so other inorganic fillers are required to be added to modify PAS resin, due to the characteristic of high viscosity of PAS resin during modification, when melting and mixing are carried out through a double-screw extruder, carbide remained on a screw rod of the double-screw extruder and an inner wall of an extrusion cavity due to high temperature needs to be regularly cleaned, the conventional mode for cleaning the interior of the screw rod machine is inconvenient, the screw rod needs to be manually disassembled and taken out, the surface of the screw rod can be cleaned only by completely lifting the screw rod out by a plurality of people, and after the screw rod is taken out, the residue remained in the extrusion cavity needs to be cleaned through a steel brush or a steel scraper, so that time and labor are wasted; and PAS resin and inorganic filler modified by the PAS resin are required to be premixed in the feed hopper before feeding into the extrusion cavity, the existing premixing stirring effect is not good enough, and meanwhile, the feeding speed cannot be ensured to be matched with the extrusion speed of the extrusion screw, so that the phenomenon of accumulation at the extrusion screw during feeding is avoided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides PAS resin modified double-screw extrusion equipment, which solves the problems that in the prior art, the screws of the PAS resin modified double-screw extrusion equipment and carbides remained in an extrusion cavity are inconvenient to clean, the premixing and stirring effect of a feed hopper in the prior double-screw extrusion equipment is not good enough, and the matching of the blanking speed and the extrusion speed of an extrusion screw cannot be ensured.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a PAS resin modified double-screw extrusion device comprises a base, wherein an extrusion shell is arranged on the surface of the base, the top of the extrusion shell is connected with a feed hopper, a material extrusion port is formed in the bottom of one end, away from the feed hopper, of the extrusion shell, a double-screw rotating driving cavity and a double-screw pushing driving cavity are connected to one end, away from the material extrusion port, of the extrusion shell, an extrusion cavity is formed in the extrusion shell, two extrusion screws are arranged in the extrusion cavity, one ends of the two extrusion screws extend into the double-screw rotating driving cavity and are connected with a double-screw rotating mechanism in the double-screw rotating driving cavity, pushing screws are in threaded connection with the insides of the two extrusion screws, one ends of the two extrusion screws, close to the material extrusion port, are connected with a cleaning wall scraping mechanism through bearings, and the cleaning wall scraping mechanism is located in the extrusion cavity;
the top of feeder hopper is provided with third driving motor, third driving motor's drive end is connected with the pivot that extends to the feeder hopper inside, the bottom of pivot is connected with spiral unloading pole, spiral unloading pole is located the feed opening inside of feeder hopper, third driving motor is connected through synchronous drive ware with double screw slewing mechanism inside the first driving motor that includes, the surface of pivot still overlaps and is equipped with a rotation section of thick bamboo, the top of a rotation section of thick bamboo is passed through the bearing rotation with the top of feeder hopper and is connected, the top of feeder hopper is fixed with the acceleration rate case, third driving motor fixes on the acceleration rate case, the inside of acceleration rate case is provided with stirring acceleration rate mechanism, and third driving motor passes through stirring acceleration rate mechanism and is connected with a rotation section of thick bamboo, the fixed surface of a rotation section of thick bamboo has two connecting rods, two the both ends of connecting rod all are fixed with scrapes the wall agitator, the surface of a rotation section of thick bamboo is provided with removal agitator mechanism, the inner wall of feeder hopper is fixed with the outrigger, outrigger's the top is provided with the ring carrier, ring carrier's the fixed with guide block, the top of feeder hopper is provided with a plurality of feed inlets all has the external pump.
Preferably, the double-screw rotating mechanism comprises a first driving motor fixed inside the double-screw rotating driving cavity, a driving gear is fixed at the driving end of the first driving motor, driven gears meshed with each other are sleeved at one ends of the two extrusion screws, and the driven gear close to one side of the driving gear is meshed with the driving gear.
Preferably, a plurality of protruding edges are arranged on the outer surfaces of the two ends, close to the driven gear, of the two extrusion screws, a plurality of positioning grooves are formed in the side wall of the mounting inner ring of the driven gear, and the protruding edges are inserted into the positioning grooves.
Preferably, double-screw ejecting mechanism is including fixing a plurality of telescoping cylinders inside the drive chamber is released to the double-screw, the flexible end of telescoping cylinder is fixed with the lifter plate jointly, the fixed surface of lifter plate has second driving motor, second driving motor's drive end fixedly connected with screw ejecting gear, two the one end of the inside release lead screw of extrusion screw is connected with the inner wall rotation that the drive chamber was released to the double-screw, and the fixed cover of surface that pushes out the lead screw has connect the contact gear, the gear is released to the screw and contact gear meshing or separation, and when clean, the gear is released to the screw and contact gear meshing so that drive ejecting lead screw rotation, when needing two extrusion screws to rotate the compounding, the gear is released to the screw and contact gear separation, avoids influencing the extrusion screw and rotates.
Preferably, both sides of the fixing base are fixed with a locking cylinder, the fixing base is provided with a slot close to the inner wall of the locking cylinder, the locking cylinder is fixed with the telescopic end of the bolt inserted into the slot, the bottom of the fixing base is fixed with a transverse plate, two guide slide bars are fixed at both ends of the lower surface of the transverse plate, the bottom of the extrusion shell is fixed with two sliding sleeves, and the two guide slide bars are respectively inserted into the two sliding sleeves and are in sliding connection with the sliding sleeves.
Preferably, the fixed surface of fixing base inlays and has two electro-magnet push rods, two the one end that extrudes the screw rod and is close to the fixing base all is fixed with rotatory piece, rotatory piece is located the recess that the fixing base surface was seted up, be connected through the bearing between recess and the rotatory piece, the locating hole has been seted up on the surface of rotatory piece, peg graft or separation between the release end of electro-magnet push rod and the locating hole, when clean, peg graft between the release end of electro-magnet push rod and the locating hole and avoid when the release lead screw rotates, extrude the screw rod and rotate thereupon to the condition that can not be released appears, when needing two to extrude the screw rod and rotate the compounding, separation between the release end of electro-magnet push rod and the locating hole, in order to avoid influencing the extrusion screw rod rotatory.
Preferably, stirring acceleration rate mechanism is including fixed cup joint the big bevel gear on the third driving motor drive end, the top of a rotating cylinder is fixed with third bevel pinion, the inner wall of acceleration rate case rotates and is connected with the rotation seat, the fixed cup joint in surface of rotating the seat has first bevel pinion and second bevel pinion, big bevel pinion and first bevel pinion meshing, third bevel pinion and second bevel pinion meshing, when big bevel pinion rotates the round, third bevel pinion can drive a rotating cylinder and rotate 2-3 rings under the transmission to realize different rotational speeds at same motor, can enough share a motor and save the energy consumption, can avoid influencing the efficiency of stirring again.
Preferably, remove rabbling mechanism including fixed a location section of thick bamboo of cup jointing on rotating a section of thick bamboo surface, the inside of a location section of thick bamboo is provided with spring and sliding sleeve, spring and sliding sleeve all slide and cup joint at the surface of a rotation section of thick bamboo, the both ends of spring respectively with the last fixed surface of the interior roof of a location section of thick bamboo, sliding sleeve, the bar mouth has all been seted up to the two symmetrical lateral walls of a location section of thick bamboo, the both sides of sliding sleeve all are fixed with the puddler, the puddler passes the bar mouth and extends to the outside of a location section of thick bamboo.
Preferably, the surface of leading the position piece is the slope setting, the puddler can drive the puddler and reciprocate when the pivoted under the effect of leading the position piece with leading the contact of position piece interval when rotating for stirring range is wider, and stirring effect is better, and makes stirring efficiency promote greatly.
Preferably, the wall mechanism is scraped in cleanness includes that the wall dish of scraping on two extrusion screw surfaces is established through the bearing housing, the surface of scraping the wall dish is connected with scrapes the wall blade, scrape the wall blade and contact with the inner wall of extruding the chamber, clean when pushing out the screw rod and scrape the wall mechanism and simultaneously release, scrape the residue on extruding the intracavity wall through scraping the wall blade to accomplish the clearance to extruding intracavity portion.
(III) advantageous effects
The invention provides PAS resin modified double-screw extrusion equipment. The method has the following beneficial effects:
1. according to the PAS resin modified double-screw extrusion equipment, due to the arrangement of the push-out screw rod, the locking air cylinder, the cleaning wall scraping mechanism and the double-screw push-out mechanism, when carbides on the surface of the extrusion screw rod and in the extrusion cavity are required to be cleaned, the double-screw push-out mechanism is automatically connected with the push-out screw rod, the push-out screw rod can be driven to automatically push out the double screw rod from the extrusion cavity, manual disassembly and use are not required, the residual carbides on the inner wall of the extrusion cavity can be automatically scraped by the cleaning wall scraping mechanism during pushing out, the use is convenient, and the labor amount of operators is greatly reduced.
2. According to the PAS resin modified double-screw extrusion equipment, the third driving motor and the first driving motor in the double-screw rotating mechanism are arranged through the third driving motor and the spiral discharging rod, the rotating speed of the third driving motor is synchronous with that of the first driving motor in the double-screw rotating mechanism through the synchronous driver, so that the rotating discharging speed of the spiral discharging rod can be matched with that of the extruding screw to avoid material accumulation, meanwhile, the third driving motor and the stirring rod are connected through the stirring speed-increasing mechanism, the third driving motor can drive the spiral discharging rod to rotate to ensure the discharging speed, raw materials can be stirred and mixed, the PAS resin modified double-screw extrusion equipment is multifunctional, more energy-saving and environment-friendly, the rotating speed of the stirring rod can be increased through the stirring speed-increasing mechanism, the rotating speed of the stirring rod is higher than that of the spiral discharging rod, and the phenomenon that the stirring speed is influenced due to the fact that one motor is shared is avoided.
3. According to the PAS resin modified double-screw extrusion equipment, the guide block and the movable stirring mechanism are arranged, and when the rotating rod on the movable stirring mechanism rotates, the rotating rod can drive the stirring rod to rotate and move up and down under the action of the guide block, so that the stirring range is wider, the stirring effect is better, and the stirring efficiency is greatly improved.
Drawings
FIG. 1 is an overall first perspective view of a PAS resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 2 is a second perspective view of an entire apparatus for extruding PAS based resin by twin screw modification according to the present invention;
FIG. 3 is a sectional plan view of a double screw extruder for modifying PAS based resin according to the present invention;
FIG. 4 is a view showing a state in which an extrusion screw and an extrusion chamber are cleaned in a PAS type resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 5 is a view showing the internal structure of a twin-screw extrusion driving chamber of a PAS type resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 6 is a perspective view of a driven gear in a PAS type resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 7 is an enlarged view of A in FIG. 3 of a PAS based resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 8 is an internal structural view of a hopper in a PAS resin modified twin-screw extrusion apparatus according to the present invention;
FIG. 9 is a view showing the entire configuration of a moving stirring mechanism in a double screw extruder for modifying PAS resin according to the present invention.
FIG. 10 is a perspective view of a guide block in a double screw extruder for modifying PAS resin according to the present invention.
Wherein, 1, a base; 2. extruding the outer shell; 201. an extrusion chamber; 202. extruding a screw; 203. pushing out the screw rod; 3. a material extrusion port; 4. a feed hopper; 5. a twin screw rotary drive cavity; 501. a first drive motor; 502. a driving gear; 503. a driven gear; 504. positioning a groove; 6. the double screw rod is pushed out of the driving cavity; 601. the screw rod pushes out the gear; 602. a second drive motor; 603. a lifting plate; 604. a telescopic cylinder; 605. a contact gear; 7. a speed increasing box; 701. a large bevel gear; 702. rotating the base; 703. a first bevel pinion; 704. a second bevel pinion; 705. a third bevel pinion; 8. a fixed seat; 9. a transverse plate; 10. a guide slide bar; 11. locking the air cylinder; 12. a third drive motor; 121. a rotating shaft; 122. a screw-type blanking rod; 13. a rotating drum; 131. a connecting rod; 132. a wall scraping stirring frame; 133. a stirring rod; 134.
an annular support; 135. a support leg; 136. a guide block; 137. a positioning cylinder; 138. a spring; 139. a sliding sleeve; 14. a wall scraping disc; 15. a wall scraping blade; 16. an electromagnet push rod; 17. the block is rotated.
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.
Example 1:
as shown in fig. 1-7, an embodiment of the present invention provides a PAS resin modified twin-screw extrusion device, which includes a base 1, an extrusion housing 2 is disposed on a surface of the base 1, a feed hopper 4 is connected to a top of the extrusion housing 2, a material extrusion port 3 is disposed at a bottom of an end of the extrusion housing 2 away from the feed hopper 4, a twin-screw rotation driving cavity 5 and a twin-screw extrusion driving cavity 6 are connected to an end of the extrusion housing 2 away from the material extrusion port 3, an extrusion cavity 201 is disposed inside the extrusion housing 2, two extrusion screws 202 are disposed inside the extrusion cavity 201, one ends of the two extrusion screws 202 extend into the twin-screw rotation driving cavity 5 and are connected to a twin-screw rotation mechanism inside the twin-screw rotation driving cavity 5, pushing screws 203 are threadedly connected inside the two extrusion screws 202, one ends of the two extrusion screws 202 extend into the twin-screw extrusion driving cavity 6 and are connected to a twin-screw extrusion mechanism inside the twin-screw extrusion driving cavity 6, one ends of the two extrusion screws 202 close to the material extrusion port 3 are rotatably connected to a fixing seat 8, one ends of the two extrusion screws 202 close to the twin-screw rotation mechanism are connected to a cleaning wall scraping mechanism through a bearing, a fixing cylinder 11 is disposed inside the fixing cylinder 11, and a locking cylinder 11 is disposed inside the fixing cylinder 11.
When the inner wall of the extrusion cavity 201 and the extrusion screws 202 need to be cleaned (as shown in fig. 2), the locking cylinder 11 is started, the locking cylinder 11 extends out to be separated from the fixed seat 8, then the two extrusion screws 202 are driven by the double-screw pushing mechanism to rotate to push out the extrusion screws 202 (as shown in fig. 3), the cleaning wall scraping mechanism connected with the extrusion screws 202 is pushed out simultaneously while pushing out, residues on the inner wall of the extrusion cavity 201 are scraped, so that the cleaning of the inner part of the extrusion cavity 201 is completed, and meanwhile, the extrusion screws 202 automatically extending to the outside can be convenient for operators to clean.
The heating component (not shown in the figure) for melting raw materials is further arranged inside the extrusion shell 2, so that the materials can be mixed, and when the extrusion shell is cleaned, the inside of the extrusion cavity 201 can be heated in advance, so that the materials remained on the inner walls of the extrusion cavity 201 and the extrusion screw 202 are melted, and the cleaning can be better carried out.
As shown in fig. 3, the twin-screw rotating mechanism includes a first driving motor 501 fixed inside the twin-screw rotating driving cavity 5, a driving gear 502 is fixed at the driving end of the first driving motor 501, one end of each of the two extrusion screws 202 is sleeved with a driven gear 503 which is engaged with each other, the driven gear 503 near one side of the driving gear 502 is engaged with the driving gear 502, the driving gear 502 is driven to rotate by the rotation of the first driving motor 501, and the two driven gears 503 are driven to rotate, so that the two extrusion screws 202 reversely rotate, and the materials are mixed.
Two one end surfaces of extruding screw 202 and being close to driven gear 503 are provided with a plurality of beads, driven gear 503's installation inner circle lateral wall has been seted up a plurality of constant head tanks 504, a plurality of beads are all inserted and are established the inside at a plurality of constant head tanks 504, make extruding screw 202 and driven gear 503 convenient when breaking away from again can make driven gear 503 drive extrude screw 202 and rotate when pegging graft, wherein driven gear 503 rotates the inner wall of drive chamber 5 with the twin-screw and is connected, so as to carry out the auxiliary stay, first driving motor 501 is brake motor simultaneously, so as to extrude screw 202 after releasing the clearance, can be accurate during the withdrawal make the bead insert the inside of constant head tank 504.
As shown in fig. 4-5, the twin-screw pushing mechanism includes a plurality of telescopic cylinders 604 fixed inside the twin-screw pushing drive cavity 6, a lifting plate 603 is jointly fixed at telescopic ends of the telescopic cylinders 604, a second drive motor 602 is fixed on a surface of the lifting plate 603, a screw pushing gear 601 is fixedly connected to a drive end of the second drive motor 602, one end of a pushing screw 203 inside two extrusion screws 202 is rotatably connected to an inner wall of the twin-screw pushing drive cavity 6, a contact gear 605 is fixedly sleeved on an outer surface of the pushing screw 203, and the screw pushing gear 601 is engaged with or separated from the contact gear 605.
When cleaning is needed, the telescopic cylinder 604 in the twin-screw pushing mechanism extends out to enable the second driving motor 602 to ascend, so that the screw pushing gear 601 is meshed with the contact gear 605, the screw pushing gear 601 is driven to rotate when the second driving motor 602 rotates, the screw pushing gear 601 drives the contact gear 605 to rotate, the contact gear 605 drives the two pushing screw rods 203 to rotate, and therefore the inner extruding screw 202 is pushed out.
The bottom of fixing base 8 is fixed with diaphragm 9, and the lower surface both ends of diaphragm 9 are fixed with two direction slide bars 10, and the bottom of extruding shell 2 is fixed with two sliding sleeves 139, and two direction slide bars 10 insert respectively and establish in two sliding sleeves 139 and with sliding sleeve 139 sliding connection to guarantee the stability of releasing.
The surface of the fixed seat 8 is fixedly embedded with two electromagnet push rods 16, one ends of the two extrusion screw rods 202, which are close to the fixed seat 8, are respectively fixed with a rotating block 17, the rotating blocks 17 are positioned in grooves formed in the surface of the fixed seat 8, the grooves are connected with the rotating blocks 17 through bearings, positioning holes are formed in the surface of the rotating blocks 17, the pushing ends of the electromagnet push rods 16 are inserted into or separated from the positioning holes, when the extrusion screw rods 202 are pushed out through the rotation of the pushing screw rods 203, the pushing ends of the electromagnet push rods 16 are inserted into the positioning holes to fix the rotating blocks 17 (the positioning holes cannot be located in the centers of the rotating blocks 17), and the situation that the extrusion screw rods 202 rotate along with the rotation of the pushing screw rods 203 and cannot be pushed out is avoided.
The cleaning wall scraping mechanism comprises wall scraping discs 14 which are sleeved on the surfaces of the two extrusion screws 202 through bearings, wall scraping blades 15 are connected to the surfaces of the wall scraping discs 14, the wall scraping blades 15 are in contact with the inner walls of the extrusion cavities 201, the cleaning wall scraping mechanisms connected with the extrusion screws 202 push out the extrusion screws 202 and push out the same, and residues on the inner walls of the extrusion cavities 201 are scraped through the wall scraping blades 15 to clean the interiors of the extrusion cavities 201.
Example 2:
as shown in fig. 1, fig. 2, and fig. 8-fig. 10, a PAS resin modified twin-screw extrusion device comprises a base 1, an extrusion housing 2 is disposed on the surface of the base 1, a feed hopper 4 is connected to the top of the extrusion housing 2, a material extrusion opening 3 is disposed at the bottom of one end of the extrusion housing 2 away from the feed hopper 4, a third driving motor 12 is disposed at the top of the feed hopper 4, a driving end of the third driving motor 12 is connected to a rotating shaft 121 extending into the feed hopper 4, a spiral blanking rod 122 is connected to the bottom end of the rotating shaft 121, the spiral blanking rod 122 is located inside a blanking opening of the feed hopper 4, the third driving motor 12 is connected to a first driving motor 501 included inside the twin-screw rotating mechanism through a synchronous driver, a rotating cylinder 13 is further sleeved on the outer surface of the rotating shaft 121, the top of a rotating cylinder 13 is rotatably connected with the top of a feeding hopper 4 through a bearing, the top of the feeding hopper 4 is fixed with an acceleration box 7, a third driving motor 12 is fixed on the acceleration box 7, the inside of the acceleration box 7 is provided with a stirring acceleration mechanism, the third driving motor 12 is connected with the rotating cylinder 13 through the stirring acceleration mechanism, the surface of the rotating cylinder 13 is fixed with two connecting rods 131, two ends of the two connecting rods 131 are respectively fixed with a scraping wall stirring frame 132, the surface of the rotating cylinder 13 is provided with a movable stirring mechanism, the inner wall of the feeding hopper 4 is fixed with a support leg 135, the top of the support leg 135 is provided with an annular support 134, the surface of the annular support 134 is fixed with a guide block 136, the top of the feeding hopper 4 is provided with a plurality of feeding ports, and the plurality of feeding ports are externally connected with a feeding pump.
When the feeding mixes in advance, inhale the material through the delivery pump, send PAS class resin into feeder hopper 4 with the inorganic filler that can be modified to PAS class resin in, because first driving motor 501 is connected through synchronous drive ware with third driving motor 12, consequently third driving motor 12 can drive spiral blanking pole 122 and rotate, make spiral blanking pole 122's rotatory unloading speed extrude screw 202 and rotate compounding speed phase-match, drive the quick rotation of rotor drum 13 through stirring acceleration mechanism's effect in third driving motor 12 pivoted, thereby it scrapes wall agitator frame 132 and puddler 133 quick rotation to drive, stir, remove the rabbling mechanism intermittent type and PASs through guide block 136 when rotating, make puddler 133 can reciprocate under guide block 136's effect, so that it is more even to the inside material mixing, the scope that can stir to wider.
As shown in fig. 8, the stirring speed increasing mechanism includes a large bevel gear 701 fixedly sleeved on the driving end of the third driving motor 12, a third small bevel gear 705 is fixed on the top end of the rotary cylinder 13, the inner wall of the speed increasing box 7 is rotatably connected with a rotary base 702, the surface of the rotary base 702 is fixedly sleeved with a first small bevel gear 703 and a second small bevel gear 704, the large bevel gear 701 is engaged with the first small bevel gear 703, the third small bevel gear 705 is engaged with the second small bevel gear 704, when the driving end of the third driving motor 12 rotates, the large bevel gear 701 can be driven to rotate, the large bevel gear 701 rotates to drive the first small bevel gear 703 to rotate, so as to drive the second small bevel gear 704 to rotate, the third small bevel gear 705 is driven to rotate by the rotation of the rotary cylinder 13, when the large bevel gear 701 rotates one circle, the third small bevel gear 705 can drive the rotary cylinder 13 to rotate 2-3 circles under transmission, so as to realize different rotation speeds in the same motor, which can save energy consumption, and can also avoid affecting the efficiency of stirring.
As shown in fig. 9-10, the movable stirring mechanism includes a positioning cylinder 137 fixedly sleeved on the outer surface of the rotating cylinder 13, a spring 138 and a sliding sleeve 139 are disposed inside the positioning cylinder 137, the spring 138 and the sliding sleeve 139 are both slidably sleeved on the outer surface of the rotating cylinder 13, both ends of the spring 138 are respectively fixed to the inner top wall of the positioning cylinder 137 and the upper surface of the sliding sleeve 139, two symmetric sidewalls of the positioning cylinder 137 are both provided with a strip-shaped opening, both sides of the sliding sleeve 139 are both fixed with a stirring rod 133, the stirring rod 133 passes through the strip-shaped opening and extends to the outside of the positioning cylinder 137, the surface of the guide block 136 is inclined, and the stirring rod 133 is in intermittent contact with the guide block 136 during rotation.
When the stirring rod 133 rotates, when the stirring rod 133 contacts with the position guide block 136, the stirring rod 133 is jacked up upwards under the action of the position guide block 136, so that the stirring rod 133 moves upwards, the spring 138 is compressed, and when the stirring rod 133 rotates to pass through the position guide block 136, the spring 138 falls back under the action of restoring force and the action of the gravity of the stirring rod 133, so that the stirring rod 133 is driven to move downwards, downward movement stirring of the stirring rod 133 is realized, and the stirring range is enlarged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a PAS class resin modification twin-screw extrusion equipment, includes base (1), the surface of base (1) is provided with extrudes shell (2), the top of extruding shell (2) is connected with feeder hopper (4), the one end bottom of extruding shell (2) and keeping away from feeder hopper (4) is provided with material extrusion opening (3), its characterized in that: one end, far away from the material extrusion port (3), of the extrusion shell (2) is connected with a double-screw rotating driving cavity (5) and a double-screw pushing driving cavity (6), an extrusion cavity (201) is arranged inside the extrusion shell (2), two extrusion screws (202) are arranged inside the extrusion cavity (201), one ends of the two extrusion screws (202) extend into the double-screw rotating driving cavity (5) and are connected with a double-screw rotating mechanism inside the double-screw rotating driving cavity (5), pushing screw rods (203) are in threaded connection with the insides of the two extrusion screws (202), one ends of the pushing screw rods (203) extend into the double-screw pushing driving cavity (6) and are connected with a double-screw pushing mechanism inside the double-screw pushing driving cavity (6), one ends, close to the material extrusion port (3), of the two extrusion screws (202) are in rotating connection with a fixed seat (8), one ends, close to the double-screw rotating mechanism, of the surfaces of the two extrusion screws (202) are connected with a cleaning wall scraping mechanism through bearings, and the cleaning wall scraping mechanism is located inside the extrusion cavity (201);
the top of feeder hopper (4) is provided with third driving motor (12), the drive end of third driving motor (12) is connected with and extends to inside pivot (121) of feeder hopper (4), the bottom of pivot (121) is connected with spiral unloading pole (122), spiral unloading pole (122) are located the feed opening inside of feeder hopper (4), third driving motor (12) are connected inside first driving motor (501) of including with the twin-screw slewing mechanism and are connected through synchronous driver, the surface of pivot (121) still overlaps and is equipped with a rotation section of thick bamboo (13), the top of a rotation section of thick bamboo (13) is connected through bearing rotation with the top of feeder hopper (4), the top of feeder hopper (4) is fixed with acceleration rate case (7), third driving motor (12) are fixed on acceleration rate case (7), the inside of acceleration rate case (7) is provided with stirring acceleration rate mechanism, and third driving motor (12) are connected with a rotation section of thick bamboo (13) through stirring acceleration rate mechanism, the surface of a rotation section of thick bamboo (13) is fixed with two connecting rods (131), the surface of two fixed support (131) of the equal support (135) of stirring leg (135) has the scraping inner wall (135), stirring leg (135) is provided with stirring support (134), a guide block (136) is fixed on the surface of the annular support (134), a plurality of feed inlets are formed in the top of the feed hopper (4), and feed pumps are externally connected to the feed inlets;
the double-screw pushing mechanism comprises a plurality of telescopic cylinders (604) fixed in a double-screw pushing driving cavity (6), a lifting plate (603) is fixed at the telescopic ends of the telescopic cylinders (604) together, a second driving motor (602) is fixed on the surface of the lifting plate (603), a screw pushing gear (601) is fixedly connected to the driving end of the second driving motor (602), one end of a pushing screw rod (203) in each of the two extruding screws (202) is rotatably connected with the inner wall of the double-screw pushing driving cavity (6), a contact gear (605) is fixedly sleeved on the outer surface of the pushing screw rod (203), and the screw pushing gear (601) is meshed with or separated from the contact gear (605);
the surface of the fixed seat (8) is fixedly embedded with two electromagnet push rods (16), one ends of the two extrusion screws (202) close to the fixed seat (8) are respectively fixed with a rotating block (17), the rotating blocks (17) are positioned in grooves formed in the surface of the fixed seat (8), the grooves are connected with the rotating blocks (17) through bearings, positioning holes are formed in the surface of the rotating blocks (17), and the pushing ends of the electromagnet push rods (16) are inserted into or separated from the positioning holes;
the stirring speed-increasing mechanism comprises a large bevel gear (701) fixedly sleeved on the driving end of a third driving motor (12), a third small bevel gear (705) is fixed at the top end of a rotating cylinder (13), the inner wall of the speed-increasing box (7) is rotatably connected with a rotating seat (702), a first small bevel gear (703) and a second small bevel gear (704) are fixedly sleeved on the surface of the rotating seat (702), the large bevel gear (701) is meshed with the first small bevel gear (703), and the third small bevel gear (705) is meshed with the second small bevel gear (704).
2. The PAS based resin modified twin-screw extrusion apparatus according to claim 1, wherein: the double-screw rotating mechanism comprises a first driving motor (501) fixed inside a double-screw rotating driving cavity (5), a driving gear (502) is fixed at the driving end of the first driving motor (501), two driven gears (503) meshed with each other are sleeved at one end of each extrusion screw (202), and the driven gears (503) close to one side of the driving gear (502) are meshed with the driving gear (502).
3. The PAS based resin modified twin-screw extrusion apparatus according to claim 2, wherein: the outer surface of one end, close to the driven gear (503), of each of the two extrusion screws (202) is provided with a plurality of ribs, the side wall of the inner ring of the driven gear (503) is provided with a plurality of positioning grooves (504), and the plurality of ribs are inserted into the plurality of positioning grooves (504).
4. The PAS based resin modified twin-screw extrusion apparatus according to claim 1, wherein: the utility model discloses a safety lock, including fixing base (8), locking cylinder (11), diaphragm (9), lower surface both ends of diaphragm (9) are fixed with two guide slide bars (10), the bottom of extruding shell (2) is fixed with two sliding sleeves, two guide slide bars (10) are inserted respectively and are established in two sliding sleeves and with sliding sleeve sliding connection, the inner wall that fixing base (8) are close to locking cylinder (11) has seted up the slot, locking cylinder (11) are fixed with the inside that the flexible end of bolt inserted the slot, the bottom of fixing base (8) is fixed with diaphragm (9).
5. The PAS based resin modified twin-screw extrusion apparatus according to claim 1, wherein: remove rabbling mechanism and connect location section of thick bamboo (137) on a rotation section of thick bamboo (13) surface including fixed cover, the inside of a location section of thick bamboo (137) is provided with spring (138) and sliding sleeve (139), spring (138) and sliding sleeve (139) all slide and cup joint the surface in a rotation section of thick bamboo (13), the both ends of spring (138) respectively with the last fixed surface of the interior roof of a location section of thick bamboo (137), sliding sleeve (139), the bar mouth has all been seted up to the bilateral symmetry lateral wall of a location section of thick bamboo (137), the both sides of sliding sleeve (139) all are fixed with puddler (133), puddler (133) pass the bar mouth and extend to the outside of a location section of thick bamboo (137).
6. The PAS based resin modified twin-screw extrusion apparatus according to claim 5, wherein: the surface of the guide block (136) is obliquely arranged, and the stirring rod (133) is intermittently contacted with the guide block (136) when rotating.
7. The PAS based resin modified twin-screw extrusion apparatus according to claim 1, wherein: the wall scraping mechanism comprises a wall scraping disc (14) which is sleeved on the surfaces of the two extrusion screws (202) through a bearing, a wall scraping blade (15) is connected to the surface of the wall scraping disc (14), and the wall scraping blade (15) is in contact with the inner wall of the extrusion cavity (201).
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| CN202210889379.0A CN115056377B (en) | 2022-07-27 | 2022-07-27 | PAS resin modified double-screw extrusion equipment |
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| CN202210889379.0A CN115056377B (en) | 2022-07-27 | 2022-07-27 | PAS resin modified double-screw extrusion equipment |
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| CN116572500B (en) * | 2023-07-15 | 2023-11-24 | 衡水金轮塑业科技股份有限公司 | Double-screw extruder for nylon plastic raw material production and extrusion method thereof |
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Effective date of registration: 20230407 Address after: 620200 Zone A, Economic Development Zone, Danling County, Meishan City, Sichuan Province Patentee after: Sichuan Zhongke Hangyu New Materials Co.,Ltd. Address before: 620038 Jinxiang chemical industry park, Dongpo District, Meishan City, Sichuan Province Patentee before: SICHUAN ZHONGKE XINGYE HIGH-TECH MATERIALS CO.,LTD. |