CN113334615A

CN113334615A - Granulator is used in plastic granules production

Info

Publication number: CN113334615A
Application number: CN202110705401.7A
Authority: CN
Inventors: 蒋雄; 阎绍钧; 周思远
Original assignee: Jilin Geruite Hoisting Equipment Co ltd
Current assignee: Jilin Geruite Hoisting Equipment Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2021-09-03

Abstract

The invention discloses a granulator for plastic particle production, which comprises a base, wherein the top of the base is fixedly connected with an installation shell, a spiral feeding pipe is fixed at the bottom in the installation shell, a conveying mechanism for feeding raw materials is arranged in the spiral feeding pipe, the top of the spiral feeding pipe is connected with a discharging pipeline, a cooling mechanism for forming the raw materials in the discharging pipeline is arranged on the installation shell, opposite fixing plates are fixed on the outer wall of the installation shell, which is close to the top, an installation frame is arranged between the fixing plates, and an extrusion shearing mechanism for granulating the raw materials is connected in the installation frame. The invention ensures the self-adaptive adjustment of the feeding, the cooling liquid backflow and the speed between the extrusion shearing mechanisms through the linkage between the structures, ensures the molding quality of processed particles and can further ensure the uniform size of the cut particles.

Description

Granulator is used in plastic granules production

Technical Field

The invention relates to the technical field of plastic particle production, in particular to a granulator for plastic particle production.

Background

The plastic granulation has the working principle that the plastic is plasticized and melted by a screw extruder, extruded into a strip shape or a belt shape through a die hole, cut into granules by granulation equipment, and cooled for the second time to obtain the plastic granules with the required particle size. The extrusion forms can be divided into hot and cold cuts. The hot cutting refers to a method for granulating materials in a molten or semi-molten state after the materials are extruded from a die hole of a machine head; the existing granulator for producing plastic granules has the problems that when the viscosity of raw materials is not constant and the feeding speed is changed, the cutting speed is not changed, so that the cutting particles are different in length, the length is different, and the use quality is affected.

Disclosure of Invention

The invention aims to provide a granulator for plastic particle production, which enables the self-adaptive adjustment of the speed among feeding, cooling liquid backflow and extrusion shearing mechanisms through the linkage among structures, ensures the molding quality of processed particles, can further ensure the uniform size of the cut particles and solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a granulator for plastic particle production comprises a base, wherein the top of the base is fixedly connected with an installation shell, a spiral feeding pipe is fixed at the bottom in the installation shell, a conveying mechanism for feeding raw materials is arranged in the spiral feeding pipe, the top of the spiral feeding pipe is connected with a discharging pipeline, a cooling mechanism for forming the raw materials in the discharging pipeline is arranged on the installation shell, opposite fixing plates are fixed on the outer wall of the installation shell, which is close to the top, an installation frame is arranged between the fixing plates, and an extrusion shearing mechanism for granulating the raw materials is connected in the installation frame;

conveying mechanism includes the double-shaft motor, double-shaft motor fixed mounting is in the bottom of installation casing, the top of double-shaft motor is connected with the auger delivery pole, the auger delivery pole sets up inside the spiral feeding pipe, the bottom of double-shaft motor is connected with the drive mechanism that is used for the installing frame to reciprocate.

Preferably, the extrusion shearing mechanism comprises a discharge barrel and a V-shaped frame, the discharge barrel is fixedly mounted on the inner wall of a mounting frame through a fixing rod, an extrusion groove is formed in the bottom of the discharge barrel, the V-shaped frame is fixedly mounted on the inner wall of the mounting frame above the discharge barrel through a fixing block, a second limiting groove is formed in the V-shaped frame, a limiting rod is slidably mounted in the second limiting groove, a cutting knife is fixed at one end of the limiting rod, and the other end of the limiting rod is slidably mounted in a second groove formed in the inner wall of the fixing plate.

Preferably, the transmission mechanism comprises two bidirectional screws, the two bidirectional screws are rotatably arranged on the side wall of the base through holes, second conical teeth are fixed on the opposite surfaces of the two bidirectional screws, a first bevel gear meshed with the second bevel gear is fixed at the bottom end of the double-shaft motor, rod sleeves are sleeved on the outer walls of the two bidirectional screw rods, mounting bars are fixed at the tops of the two rod sleeves, the top of the mounting bar is provided with a first groove, the two sides of the mounting shell are provided with mounting grooves, the mounting groove is internally and rotatably provided with a mounting rod through a pin shaft, one end of the mounting rod close to the mounting frame is provided with a first limit groove, a first lug is arranged in the first limiting groove in a sliding way and fixedly arranged on the back surface of the mounting frame, and a second lug is fixed at one end, far away from the mounting frame, of the mounting rod and is slidably mounted inside the first groove.

Preferably, the cooling mechanism includes two water tanks, the inside cooling tube that is provided with of water tank, the one end of cooling tube is through first connecting pipe and ejection of compact pipeline inner wall intercommunication, the other end of cooling tube is connected with the suction mechanism that is used for the coolant liquid motion through the second connecting pipe.

Preferably, the suction mechanism comprises two piston sleeves, two piston plates are slidably mounted in the piston sleeves, connecting plates are fixedly connected to the back faces of the piston plates, and the connecting plates penetrate through the outer walls of the piston sleeves and are fixedly connected with the side walls of the mounting bars.

Preferably, the cooling pipe is a loop-around pipe.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, through linkage of the mechanisms, when the viscosity of the raw material is not uniform, the output power of the double-shaft motor needs to be changed, so that the feeding speed of the raw material is changed, on one hand, the reflux speed of the cooling liquid is adjusted, and meanwhile, the extrusion shearing process is correspondingly changed, when the feeding speed is increased, the reflux speed of the cooling liquid is correspondingly increased, and meanwhile, the movement speed of the extrusion shearing mechanism is increased, so that the molding quality of processed particles is ensured, and the size uniformity of the cut particles can be further ensured.

2. According to the invention, through the arranged extrusion shearing mechanism, when the mounting frame moves downwards, the extrusion groove can be driven to move downwards, and the spiral upward feeding process is matched, so that raw materials can be extruded out of the extrusion groove, meanwhile, when the mounting frame moves downwards, the opposite movement of the cutting knife can be further realized due to the limiting action of the second limiting groove and the limiting rod which are arranged on the V-shaped frame, at the moment, the extrusion granulation process can be realized through the cutting action of the cutting knife, meanwhile, the complete cutting is realized by utilizing the vibration generated by the up-and-down movement of the mounting frame, the adhesion among particles after cutting is avoided, and the processing quality is improved by improving the working efficiency.

3. Through the further linkage of structure, when the mounting bar side-to-side motion, can further the piston plate at the inside back and forth movement of piston sleeve to carry out the suction process to the inside coolant liquid of piston sleeve, when the inside coolant liquid of ejection of compact pipeline flows back to the water tank when inside, because the setting of cooling tube, can further realize the rapid cooling of coolant liquid, thereby realize the circulation of coolant liquid, thereby improved cooling quality greatly.

Drawings

FIG. 1 is a schematic view of the internal cross-sectional perspective structure of the present invention;

FIG. 2 is a schematic front sectional perspective view of the present invention;

FIG. 3 is a schematic front perspective view of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

In the figure: 1. a base; 2. a double-shaft motor; 3. a first bevel gear; 4. a second taper tooth; 5. a bidirectional screw; 6. a rod sleeve; 7. mounting a bar; 8. a screw conveying rod; 9. a piston plate; 10. a piston sleeve; 12. a first connecting pipe; 13. a discharge pipeline; 14. a first groove; 15. installing a frame; 16. installing a shell; 17. mounting grooves; 18. a first limit groove; 19. a pin shaft; 20. mounting a rod; 21. a water tank; 22. a cooling tube; 23. a second connecting pipe; 24. a connecting plate; 25. a helical feed tube; 26. a V-shaped frame; 27. a limiting rod; 28. a cutting knife; 29. a discharging barrel; 30. an extrusion groove; 31. fixing the rod; 32. a fixed block; 33. a second limit groove; 34. a second groove; 35. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: a granulator for plastic particle production comprises a base 1, wherein the top of the base 1 is fixedly connected with an installation shell 16, a spiral feeding pipe 25 is fixed at the bottom in the installation shell 16, a conveying mechanism for raw material feeding is arranged inside the spiral feeding pipe 25, the top of the spiral feeding pipe 25 is connected with a discharging pipeline 13, a cooling mechanism for raw material forming inside the discharging pipeline 13 is arranged on the installation shell 16, opposite fixing plates 35 are fixed on the outer wall of the installation shell 16 close to the top, an installation frame 15 is arranged between the fixing plates 35, and an extrusion shearing mechanism for raw material granulation is connected inside the installation frame 15;

conveying mechanism includes double-shaft motor 2, and double-shaft motor 2 fixed mounting is in the bottom of installation casing 16, and double-shaft motor 2's top is connected with screw conveyor 8, and screw conveyor 8 sets up inside screw conveying pipe 25, and double-shaft motor 2's bottom is connected with the drive mechanism that is used for installing frame 15 to reciprocate.

Through the linkage between the mechanism, when the viscosity of raw materials is not in the interim, need change biax motor 2's output, thereby make raw materials feed speed change, on the one hand, make the adjustment of coolant liquid backward flow speed, extrude simultaneously that the shearing process also correspondingly changes, when feed speed becomes fast, the corresponding acceleration of coolant liquid backward flow speed extrudes simultaneously and shears mechanism's rate of motion, when having guaranteed the shaping quality of processing granule, can further guarantee that the cutting granule size is even.

Further, extrude shearing mechanism and include blown down tank 29 and V-arrangement frame 26, blown down tank 29 passes through dead lever 31 fixed mounting on the inner wall of installing frame 15, extrusion tank 30 has been seted up to the bottom in blown down tank 29, V-arrangement frame 26 passes through the inner wall of installing frame 15 of fixed block 32 fixed mounting in blown down tank 29 top, second spacing groove 33 has been seted up on the V-arrangement frame 26, the inside slidable mounting of second spacing groove 33 has gag lever post 27, the one end of gag lever post 27 is fixed with cutting knife 28, the other end slidable mounting of gag lever post 27 is inside the second recess 34 that the inner wall of fixed plate 35 was seted up.

Through the mechanism is sheared in extrusion that sets up, when the installing frame 15 downstream, can drive and extrude groove 30 downstream, the pay-off process on the cooperation spiral, alright extrude the raw materials by extruding groove 30 is inside, simultaneously, when the installing frame 15 downstream, because the second spacing groove 33 that sets up on the V-arrangement frame 26 and gag lever post 27's limiting displacement, can further realize cutting knife 28 and move in opposite directions, can realize extruding the granulation process through the cutting effect of cutting knife 28 this moment.

Further, drive mechanism includes two-way screw rod 5, two-way screw rod 5 pass through the through-hole rotation and install on base 1 lateral wall, two-way screw rod 5 opposite faces are fixed with second conical tooth 4, the bottom mounting of biax motor 2 has the first conical tooth 3 with second conical tooth 4 meshing, two 5 outer walls of two-way screw rod are all overlapped and are equipped with rod cover 6, the top of two rod cover 6 all is fixed with mounting bar 7, first recess 14 has been seted up at mounting bar 7 top, mounting groove 17 has been seted up to the both sides of installation casing 16, the inside installation pole 20 of installing through round pin axle 19 rotation, first spacing groove 18 has been seted up to the one end that installation pole 20 is close to installing frame 15, first spacing groove 18 inside slidable mounting has first lug, first lug fixed mounting is at the installing frame 15 back, the one end that installing frame 15 was kept away from to installation pole 20 is fixed with the second lug, second lug slidable mounting is inside first recess 14.

Due to the matching of the transmission mechanism, when the double-shaft motor 2 works, due to the meshing effect of the first bevel gear 3 and the second bevel gear 4, the two-way screw 5 can be further driven to rotate, through the threaded connection between the two-way screw 5 and the rod sleeve 6, when the two-way screw 5 rotates, the mounting bar 7 can be driven to move left and right, due to the fact that the mounting rod 20 is rotatably installed on the mounting shell 16, the limiting effect of the first groove 14 and the first limiting groove 18 is matched, and when the mounting bar 7 moves left and right, the up-and-down movement of the mounting frame 15 can be realized.

Further, the cooling mechanism comprises two water tanks 21, a cooling pipe 22 is arranged inside the water tanks 21, one end of the cooling pipe 22 is communicated with the inner wall of the discharge pipeline 13 through a first connecting pipe 12, and the other end of the cooling pipe 22 is connected with a suction mechanism for movement of cooling liquid through a second connecting pipe 23.

When the inside coolant liquid of ejection of compact pipeline 13 flows back to inside 21 of water tank, because the setting of cooling tube 22, can further realize the rapid cooling of coolant liquid to realize the circulation of coolant liquid, thereby improved cooling quality greatly.

Further, the suction mechanism comprises two piston sleeves 10, piston plates 9 are slidably mounted inside the two piston sleeves 10, connecting plates 24 are fixedly connected to the opposite sides of the two piston plates 9, and the two connecting plates 24 penetrate through the outer walls of the piston sleeves 10 and are fixedly connected with the side walls of the mounting bars 7.

Through the further linkage of structure, when mounting bar 7 moves about, can further piston plate 9 round trip movement in piston bush 10 inside to carry out the suction process to the inside coolant liquid of piston bush 10.

Further, the cooling pipe 22 is a loop-shaped surrounding pipe, and since the cooling pipe 22 is a loop-shaped surrounding pipe, the residence time of the cooling liquid in the water tank 21 can be made long, thereby increasing the cooling time.

The working principle is as follows: when the granulator is used, a raw material to be processed is communicated with the interior of the spiral feeding pipe 25, and then the double-shaft motor 2 is driven to work, on one hand, the spiral conveying rod 8 can be driven to convey forwards in a spiral mode, so that the raw material can be driven to feed forwards, on the other hand, due to the matching of a transmission mechanism, when the double-shaft motor 2 works, due to the meshing effect of the first bevel teeth 3 and the second bevel teeth 4, the two-way screw 5 can be further driven to rotate, through the threaded connection between the two-way screw 5 and the rod sleeve 6, when the two-way screw 5 rotates, the mounting bar 7 can be driven to move left and right, due to the fact that the mounting bar 20 is rotatably installed on the mounting shell 16 and is matched with the limiting effect of the first groove 14 and the first limiting groove 18, when the mounting bar 7 moves left and right, the up-and down movement of the mounting frame 15 can be realized, through the arranged extrusion shearing mechanism, when the mounting frame 15 moves downwards, the extrusion groove 30 can be driven to move downwards, the raw materials can be extruded from the interior of the extrusion groove 30 by matching with the spiral upward feeding process, meanwhile, when the mounting frame 15 moves downwards, the opposite movement of the cutting knife 28 can be further realized due to the limiting action of the second limiting groove 33 and the limiting rod 27 which are arranged on the V-shaped frame 26, the extrusion granulation process can be realized by the cutting action of the cutting knife 28, and meanwhile, the complete cutting-off is realized by the vibration generated by the vertical movement of the mounting frame 15;

through further linkage of the structure, when the mounting bar 7 moves left and right, the piston plate 9 can further move back and forth in the piston sleeve 10, so that the cooling liquid in the piston sleeve 10 is sucked, and when the cooling liquid in the discharge pipeline 13 flows back to the water tank 21, due to the arrangement of the cooling pipe 22, the cooling liquid can be further quickly cooled, so that the circulation of the cooling liquid is realized;

owing to through the linkage between the mechanism, when the viscosity of raw materials is not in the interim, need change biax motor 2's output to make raw materials feed speed change, on the one hand, make the adjustment of coolant liquid backward flow speed, extrude simultaneously that the shearing process also correspondingly takes place to change, when feed speed becomes fast, the corresponding acceleration of coolant liquid backward flow speed extrudes simultaneously and shears mechanism's rate of motion, when having guaranteed the shaping quality of processing granule, can further guarantee that the cutting granule size is even.

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

1. A granulator for plastic particle production comprises a base (1), and is characterized in that: the top of the base (1) is fixedly connected with an installation shell (16), a spiral feeding pipe (25) is fixed at the bottom in the installation shell (16), a conveying mechanism for feeding raw materials is arranged inside the spiral feeding pipe (25), the top of the spiral feeding pipe (25) is connected with a discharging pipeline (13), a cooling mechanism for forming the raw materials inside the discharging pipeline (13) is arranged on the installation shell (16), opposite fixing plates (35) are fixed on the outer wall of the installation shell (16) close to the top, an installation frame (15) is arranged between the fixing plates (35), and an extrusion shearing mechanism for granulating the raw materials is connected inside the installation frame (15);

conveying mechanism includes double-shaft motor (2), double-shaft motor (2) fixed mounting is in the bottom of installation casing (16), the top of double-shaft motor (2) is connected with screw conveyor pole (8), screw conveyor pole (8) set up inside screw feeding pipe (25), the bottom of double-shaft motor (2) is connected with the drive mechanism that is used for installing frame (15) to reciprocate.

2. A granulator for the production of plastic granules according to claim 1, characterized in that: extruding and shearing mechanism includes blown down tank (29) and V-arrangement frame (26), blown down tank (29) are through dead lever (31) fixed mounting on installing frame (15) inner wall, extrusion groove (30) have been seted up to bottom in blown down tank (29), V-arrangement frame (26) are through fixed block (32) fixed mounting on installing frame (15) inner wall of blown down tank (29) top, second spacing groove (33) have been seted up on V-arrangement frame (26), second spacing groove (33) inside slidable mounting has gag lever post (27), the one end of gag lever post (27) is fixed with cutting knife (28), the other end slidable mounting of gag lever post (27) is inside second recess (34) that fixed plate (35) inner wall was seted up.

3. A granulator for the production of plastic granules according to claim 1, characterized in that: the transmission mechanism comprises two-way screw rods (5), the two-way screw rods (5) are rotatably installed on the side wall of the base (1) through holes, two opposite faces of the two-way screw rods (5) are fixed with second conical teeth (4), the bottom end of the double-shaft motor (2) is fixed with first conical teeth (3) meshed with the second conical teeth (4), the outer walls of the two-way screw rods (5) are sleeved with rod sleeves (6), the tops of the two rod sleeves (6) are fixed with mounting bars (7), the top of each mounting bar (7) is provided with a first groove (14), mounting grooves (17) are formed in two sides of the mounting shell (16), mounting rods (20) are rotatably installed in the mounting grooves (17) through pin shafts (19), one ends, close to the mounting frames (15), of the mounting rods (20) are provided with first limiting grooves (18), and first convex blocks are slidably installed in the first limiting grooves (18), the first lug is fixedly mounted on the back face of the mounting frame (15), a second lug is fixed at one end, far away from the mounting frame (15), of the mounting rod (20), and the second lug is slidably mounted inside the first groove (14).

4. A granulator for the production of plastic granules according to claim 1, characterized in that: the cooling mechanism comprises two water tanks (21), a cooling pipe (22) is arranged inside the water tank (21), one end of the cooling pipe (22) is communicated with the inner wall of the discharge pipeline (13) through a first connecting pipe (12), and the other end of the cooling pipe (22) is connected with a suction mechanism used for movement of cooling liquid through a second connecting pipe (23).

5. A granulator for the production of plastic granules according to claim 4, characterized in that: the suction mechanism comprises two piston sleeves (10), wherein a piston plate (9) is arranged inside each piston sleeve (10) in a sliding mode, the piston plates (9) are fixedly connected with connecting plates (24) on the back, and the connecting plates (24) penetrate through the outer wall of each piston sleeve (10) and are fixedly connected with the side wall of the mounting bar (7).

6. A granulator for the production of plastic granules according to claim 4, characterized in that: the cooling pipe (22) is a loop-shaped surrounding pipe.