CN114393738B - Plastic particle granulator for recycling centrifugal high-efficiency waste plastics and using method - Google Patents
Plastic particle granulator for recycling centrifugal high-efficiency waste plastics and using method Download PDFInfo
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- CN114393738B CN114393738B CN202210157861.5A CN202210157861A CN114393738B CN 114393738 B CN114393738 B CN 114393738B CN 202210157861 A CN202210157861 A CN 202210157861A CN 114393738 B CN114393738 B CN 114393738B
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- centrifugal
- bracket
- glue injection
- forming
- cylinder
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- 239000002245 particle Substances 0.000 title claims abstract description 87
- 229920003023 plastic Polymers 0.000 title claims abstract description 52
- 239000004033 plastic Substances 0.000 title claims abstract description 52
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 239000002699 waste material Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 87
- 238000002347 injection Methods 0.000 claims abstract description 70
- 239000007924 injection Substances 0.000 claims abstract description 70
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 239000000110 cooling liquid Substances 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims description 35
- 238000001746 injection moulding Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 5
- 229920000426 Microplastic Polymers 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
Classifications
-
- 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
- B29B9/00—Making granules
- B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
-
- 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
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
- B29B13/045—Conditioning or physical treatment of the material to be shaped by cooling of powders or pellets
-
- 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
- B29B9/00—Making granules
- B29B9/16—Auxiliary treatment of granules
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention discloses a centrifugal high-efficiency plastic particle granulator for recycling waste plastics, which comprises a first bracket, a centrifugal glue injection mechanism, a cooling forming mechanism, an opening and closing driving mechanism and a rotary driving mechanism, wherein the first bracket is arranged on the first bracket; the centrifugal glue injection mechanism is rotationally connected to the first bracket and is provided with a glue injection through hole; the cooling forming mechanism is sleeved on the outer wall of the centrifugal glue injection mechanism in a sliding way; the cooling forming mechanism comprises a plurality of particle forming cavities which are of regular polyhedron structures and can be opened and closed, and a plurality of cooling liquid cavities; the particle forming cavity can be communicated with the glue injection through hole; the opening and closing driving mechanism is arranged on the first bracket and is connected with the cooling forming mechanism; the rotary driving mechanism is arranged on the first bracket, and the output end of the rotary driving mechanism is in transmission connection with the centrifugal glue injection mechanism; the regular polyhedron particles obtained by the method are more compact, so that the occupied space after packaging is reduced, the transportation efficiency is improved, the drying process is avoided, the energy consumption is reduced, the continuous production is realized, and the production efficiency is improved.
Description
Technical Field
The invention relates to a centrifugal type efficient plastic particle granulator for recycling waste plastics.
Background
At present, the plastic pelletization is usually carried out by continuously extruding molten plastic into a cylinder shape through an extrusion die, then immersing in water, cooling, drying and then cutting into cylindrical particles; however, due to the limitation of the shape of the cylindrical particles, more gaps exist between the particles after the stacked particles are packed, the occupied space after the stacked particles are packed is larger, the transportation efficiency is reduced, and the production efficiency of the granulating mode is lower.
Disclosure of Invention
The invention aims to overcome the defects and provide a centrifugal type efficient plastic particle granulator for recycling waste plastics.
In order to achieve the above object, the present invention is specifically as follows:
a centrifugal high-efficiency plastic particle granulator for recycling waste plastics comprises a first bracket, a centrifugal glue injection mechanism, a cooling forming mechanism, an opening and closing driving mechanism and a rotary driving mechanism;
the centrifugal glue injection mechanism is rotatably connected to the first bracket and is provided with a plurality of glue injection through holes;
the cooling forming mechanism is sleeved on the outer wall of the centrifugal glue injection mechanism in a sliding manner and can rotate along with the centrifugal glue injection mechanism; the cooling forming mechanism comprises a plurality of particle forming cavities which are of regular polyhedron structures and can be opened and closed, and a plurality of cooling liquid cavities for cooling the particle forming cavities; each particle forming cavity can be communicated with each glue injection through hole in a one-to-one correspondence manner;
the opening and closing driving mechanism is arranged at one end of the first bracket, and the output end of the opening and closing driving mechanism is connected with one end of the cooling forming mechanism;
the rotary driving mechanism is arranged at the other end of the first bracket, and the output end of the rotary driving mechanism is in transmission connection with one end of the centrifugal glue injection mechanism far away from the closed driving mechanism.
The invention further discloses a centrifugal glue injection mechanism, which comprises a first centrifugal cylinder, a material collecting cover and an injection molding pipeline, wherein the closed end of the first centrifugal cylinder is rotationally connected to one end of a first bracket, the material collecting cover is fixedly connected to the open end of the first centrifugal cylinder and forms a glue injection cavity with the first centrifugal cylinder, the material collecting cover is rotationally connected to the other end of the first bracket and is in transmission connection with the output end of a rotary driving mechanism, the cooling forming mechanism is slidably sleeved on the outer wall of the first centrifugal cylinder, the inner wall of the first centrifugal cylinder is of a conical surface structure, the inner diameter of the closed end of the first centrifugal cylinder is smaller than the inner diameter of the open end of the first centrifugal cylinder, injection molding through holes communicated with the glue injection cavity are uniformly distributed in the peripheral wall of the first centrifugal cylinder, and the injection molding pipeline extends into the glue injection cavity from the activity of the closed end of the first centrifugal cylinder along the axial direction of the first centrifugal cylinder.
According to the invention, heating rings are uniformly distributed on the outer peripheral wall of the first centrifugal cylinder, and the heating rings and the injection molding through holes are staggered.
The invention further provides a cooling forming mechanism which comprises a second centrifugal cylinder, a connecting bracket and a water supply ring;
the second centrifugal cylinder is sleeved on the outer wall of the first centrifugal cylinder in a sliding manner, the closed end of the second centrifugal cylinder is sleeved with the closed end profile of the first centrifugal cylinder, a first spring is arranged between the closed end of the second centrifugal cylinder and the closed end of the first centrifugal cylinder, and blanking windows are uniformly distributed on the peripheral wall of the second centrifugal cylinder; the water supply ring is arranged at one end of the first bracket, and the connecting bracket is sleeved on the water supply ring in a sliding way;
the inner peripheral wall of the second centrifugal cylinder is uniformly provided with forming modules, each forming module is uniformly provided with a particle forming cavity along the circumferential direction, each particle forming cavity is provided with a feed inlet, and each forming module is respectively provided with a cooling liquid cavity at two sides of each particle forming cavity;
a plurality of connecting shafts are uniformly distributed in the second centrifugal cylinder, the connecting shafts penetrate through all the forming modules, and one end of each connecting shaft penetrates out of the closed end of the second centrifugal cylinder and is fixedly connected with the connecting bracket; one end of each connecting shaft is sleeved with a second spring, and two ends of each second spring are respectively abutted against the connecting shaft and the closed end of the second centrifugal cylinder; the sum of the stiffness of each second spring is smaller than the stiffness of the first spring;
a cooling water channel which communicates the water supply ring with each cooling liquid cavity is arranged on each connecting bracket and each connecting shaft; the connecting support is connected with the output end of the opening and closing driving mechanism.
The invention further discloses a cooling device, which comprises a first centrifugal cylinder, a second centrifugal cylinder, a first forming ring, a second forming ring, a first connecting shaft, a second connecting shaft, a first forming ring and a second forming ring, wherein each forming module comprises a first forming ring and a second forming ring, the first forming ring is fixedly connected to the inner wall of the second centrifugal cylinder, the second forming ring is fixedly connected with each connecting shaft, half cavities with regular polyhedron structures are uniformly distributed on two opposite sides between the first forming ring and the second forming ring along the circumferential direction, and cooling liquid cavities are formed in the first forming ring and the second forming ring.
The invention further provides an opening and closing driving mechanism, which comprises a driving air cylinder, a second support and a pressing ring, wherein the second support is fixedly arranged on the first support, the driving air cylinder is arranged on the second support, the pressing ring is fixedly connected to the connecting support, and the pressing ring is connected with the output end of the driving air cylinder through a third support.
The invention further comprises a recovery mechanism, wherein the recovery mechanism comprises a discharge pipe, a fourth bracket, a recovery pipe, a three-way joint and a glue solution pump, the three-way joint is connected to the injection molding pipeline, one end of the discharge pipe movably stretches into the collection cover along the axial direction of the collection cover, the fourth bracket is arranged at the other end of the first bracket, the glue solution pump is arranged on the fourth bracket, the other end of the discharge pipe is connected with the glue solution pump, one end of the recovery pipe is connected to the three-way joint, and the other end of the recovery pipe is connected to the glue solution pump.
The invention further comprises an outer cover and a discharging groove, wherein two ends of the outer cover are fixedly connected to the first bracket, so that the centrifugal glue injection mechanism and the cooling forming mechanism are positioned in the outer cover, a discharging gap is formed in the bottom of the outer cover, and the discharging groove is fixedly connected to the outer cover and is positioned below the discharging gap.
The beneficial effects of the invention are as follows: according to the invention, the molten plastic is injected into the particle forming cavity in a centrifugal way, so that the glue injection pressure can be effectively increased, the obtained regular polyhedron particles are more compact, the occupied space after packaging is reduced, the transportation efficiency is improved, meanwhile, the molten plastic in the particle forming cavity is cooled and formed by arranging the cooling liquid cavity, the drying process is avoided, the energy consumption is reduced, the particle quality is better, and the continuous production of the regular polyhedron particles is realized, and the production efficiency is greatly improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of another view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of a portion of the structure of the present invention;
FIG. 5 is a schematic cross-sectional view of the centrifugal glue injection mechanism of the present invention;
FIG. 6 is a schematic cross-sectional view of the cooling forming mechanism of the present invention;
FIG. 7 is a schematic cross-sectional view of a molding die set of the present invention;
fig. 8 is a perspective view of the opening/closing drive mechanism of the present invention;
FIG. 9 is a perspective view of the recovery mechanism of the present invention;
reference numerals illustrate: 1. a first bracket; 2. a centrifugal glue injection mechanism; 21. a first centrifuge bowl; 22. a collection cover; 23. injection molding a pipeline; 24. a heating ring; 3. cooling and forming mechanism; 31. a second centrifuge bowl; 311. a blanking window; 32. a connecting bracket; 33. a water supply ring; 34. a first spring; 35. a molding module; 351. a first forming ring; 352. a second forming ring; 353. a cooling liquid chamber; 354. a half cavity; 36. a connecting shaft; 37. a second spring; 38. a pellet forming cavity; 4. an opening/closing driving mechanism; 41. a driving cylinder; 42. a second bracket; 43. a compression ring; 44. a third bracket; 5. a rotary driving mechanism; 6. a recovery mechanism; 61. a discharge pipe; 62. a fourth bracket; 63. a recovery pipe; 64. a three-way joint; 65. a glue pump; 7. an outer cover; 8. and a discharge chute.
Detailed Description
The invention will now be described in further detail with reference to the drawings and the specific embodiments, without limiting the scope of the invention.
As shown in fig. 1 to 9, the plastic pellet granulator for recycling waste plastics with high efficiency according to the present embodiment includes a first bracket 1, a centrifugal glue injection mechanism 2, a cooling forming mechanism 3, an opening and closing driving mechanism 4 and a rotation driving mechanism 5;
the centrifugal glue injection mechanism 2 is rotatably connected to the first bracket 1, and the centrifugal glue injection mechanism 2 is provided with a plurality of glue injection through holes; the cooling forming mechanism 3 is sleeved on the outer wall of the centrifugal glue injection mechanism 2 in a sliding manner and can rotate along with the centrifugal glue injection mechanism 2; the cooling forming mechanism 3 comprises a plurality of particle forming cavities 38 which are of regular polyhedron structures and can be opened and closed, and a plurality of cooling liquid cavities 353 for cooling the particle forming cavities 38; each particle forming cavity 38 can be communicated with each glue injection through hole in a one-to-one correspondence; the opening and closing driving mechanism 4 is arranged at one end of the first bracket 1, and the output end of the opening and closing driving mechanism 4 is connected with one end of the cooling forming mechanism 3; the rotary driving mechanism 5 is arranged at the other end of the first bracket 1, and the output end of the rotary driving mechanism 5 is in transmission connection with one end of the centrifugal glue injection mechanism 2 far away from the closed driving mechanism 4.
The working mode of the embodiment is as follows: during operation, the rotary driving mechanism 5 drives the centrifugal glue injection mechanism 2 to rotate, the centrifugal glue injection mechanism 2 drives the cooling forming mechanism 3 to rotate, molten plastic is injected into the box centrifugal glue injection mechanism 2, the opening and closing driving mechanism 4 drives the cooling forming mechanism 3 to slide forward relative to the centrifugal glue injection mechanism 2, so that each particle forming cavity 38 is closed and is respectively communicated with the glue injection through holes in a one-to-one correspondence manner, at the moment, molten plastic enters each particle forming cavity 38 through each glue injection through hole under the action of centrifugal force, after the glue injection is completed, cooling liquid is injected into each cooling liquid cavity 353, so that the cooling liquid cools and forms the molten plastic in each particle forming cavity 38 into regular polyhedron particles, after the forming is completed, the opening and closing driving mechanism 4 drives the cooling forming mechanism 3 to slide reversely relative to the centrifugal glue injection mechanism 2, so that each particle forming cavity 38 is opened, and then the regular polyhedron particles in each particle forming cavity 38 are discharged under the action of the centrifugal force, and thus a batch of manufacturing and forming of regular polyhedron particles are completed;
after the regular polyhedron particles are discharged from the particle forming cavity 38, the above-described granulation process is repeated, and the production of regular polyhedron particles can be continuously performed.
According to the embodiment, molten plastic is injected into the particle forming cavity 38 in a centrifugal mode, the glue injection pressure can be effectively increased, the obtained regular polyhedron particles are more compact, the occupied space after packaging is reduced, the transportation efficiency is improved, meanwhile, the molten plastic in the particle forming cavity 38 is cooled and formed by arranging the cooling liquid cavity 353, the drying process is avoided, the energy consumption is reduced, the particle quality is better, the continuous production of the regular polyhedron particles is realized, and the production efficiency is greatly improved.
Based on the above embodiment, further, the centrifugal glue injection mechanism 2 includes a first centrifugal cylinder 21, a material collecting cover 22 and an injection molding pipe 23, the closed end of the first centrifugal cylinder 21 is rotationally connected to one end of the first bracket 1, the material collecting cover 22 is fixedly connected to the open end of the first centrifugal cylinder 21 and forms a glue injection cavity with the first centrifugal cylinder 21, the material collecting cover 22 is rotationally connected to the other end of the first bracket 1 and is in transmission connection with the output end of the rotary driving mechanism 5, the cooling forming mechanism 3 is slidingly sleeved on the outer wall of the first centrifugal cylinder 21, the inner wall of the first centrifugal cylinder 21 is in a conical surface structure, the inner diameter of the closed end of the first centrifugal cylinder 21 is smaller than the inner diameter of the open end of the first centrifugal cylinder 21, injection molding through holes communicated with the glue injection cavity are uniformly distributed on the peripheral wall of the first centrifugal cylinder 21, and the injection molding pipe 23 axially extends into the glue injection cavity from the closed end of the first centrifugal cylinder 21.
In this embodiment, the heating rings 24 are uniformly distributed on the outer peripheral wall of the first centrifugal barrel 21, the heating rings 24 are staggered with the injection molding through holes, and the heating rings 24 are arranged to heat the molten plastic in the injection molding cavity, so that the molten plastic is kept in a fluid form, and is easy to enter the particle molding cavity 38 through the injection molding through holes.
In actual use, molten plastic is injected into the glue injection cavity through the injection molding pipeline 23, the rotary driving mechanism 5 drives the first centrifugal cylinder 21 to rotate through the material collecting cover 22, the molten plastic flows in the glue injection through holes of the box under the action of centrifugal force along with the rotation of the first centrifugal cylinder 21 on the inner wall of the first centrifugal cylinder 21, and is injected into the particle forming cavity 38, meanwhile, as the inner wall of the first centrifugal cylinder 21 is of a conical surface structure, a component force exists on the centrifugal force applied to the molten plastic along the conical surface in the direction of the large end, the molten plastic flows along the inner wall of the first centrifugal cylinder 21 in the direction of the large end until the molten plastic flows into the material collecting cover 22 to be collected, and each heating ring 24 works simultaneously, so that the molten plastic in the first centrifugal cylinder 21 is always kept in a molten form.
Further, based on the above embodiment, the cooling forming mechanism 3 includes a second centrifugal cylinder 31, a connecting bracket 32, and a water supply ring 33; the second centrifugal cylinder 31 is slidably sleeved on the outer wall of the first centrifugal cylinder 21, the closed end of the second centrifugal cylinder 31 is sleeved with the closed end profile of the first centrifugal cylinder 21, a first spring 34 is arranged between the closed end of the second centrifugal cylinder 31 and the closed end of the first centrifugal cylinder 21, and blanking windows 311 are uniformly distributed on the peripheral wall of the second centrifugal cylinder 31; the water supply ring 33 is arranged at one end of the first bracket 1, and the connecting bracket 32 is sleeved on the water supply ring 33 in a sliding way;
the inner peripheral wall of the second centrifugal barrel 31 is uniformly provided with forming modules 35, each forming module 35 is uniformly provided with a particle forming cavity 38 along the circumferential direction, each particle forming cavity 38 is provided with a feed inlet, and each forming module 35 is respectively provided with a cooling liquid cavity 353 at two sides of the particle forming cavity 38; a plurality of connecting shafts 36 are uniformly distributed in the second centrifugal barrel 31, the connecting shafts 36 penetrate through the forming modules 35, and one end of each connecting shaft 36 penetrates out of the closed end of the second centrifugal barrel 31 and is fixedly connected with the connecting bracket 32; one end of each connecting shaft 36 is sleeved on a second spring 37, and two ends of the second spring 37 are respectively abutted against the connecting shafts 36 and the closed end of the second centrifugal barrel 31; the sum of the stiffness of each of the second springs 37 is smaller than the stiffness of the first spring 34; a cooling water channel for communicating the water supply ring 33 with each cooling liquid cavity 353 is arranged on each connecting bracket 32 and each connecting shaft 36; the connection bracket 32 is connected to the output end of the opening/closing drive mechanism 4.
In this embodiment, further, each molding module 35 includes a first molding ring 351 and a second molding ring 352, the first molding ring 351 is fixedly connected to the inner wall of the second centrifugal barrel 31, the second molding ring 352 is fixedly connected to each connecting shaft 36, two opposite sides between the first molding ring 351 and the second molding ring 352 are uniformly distributed with half cavities 354 in regular polyhedron structures along the circumferential direction, and cooling liquid cavities 353 are formed in the first molding ring 351 and the second molding ring 352.
When the mold is used in real time, the opening and closing driving mechanism 4 drives the connecting bracket 32 to slide leftwards relative to the water supply ring 33, the connecting bracket 32 pushes each second molding ring 352 to move leftwards through each connecting shaft 36, so that each second molding ring 352 is abutted against and closed with the corresponding first molding ring 351, the second springs 37 are extruded, each half cavity 354 of the first molding ring 351 and each half cavity 354 of the second molding ring 352 are closed to form a plurality of particle molding cavities 38, mold closing between the first molding ring 351 and the second molding ring 352 is realized, along with further pushing of the connecting bracket 32, the molding module 35 after mold closing pushes the second centrifugal cylinder 31 to slide leftwards relative to the first centrifugal cylinder 21, the first springs 34 are compressed until the feed inlets of the respective particle molding cavities 38 are aligned and communicated with the glue injection through holes on the first centrifugal cylinder 21 respectively, injecting molten plastic into the particle forming cavity 38 through the glue injecting through hole and the feeding hole to complete the glue injecting forming action, then driving the connecting bracket 32 to slide rightwards to reset by the opening and closing driving mechanism 4, at the moment, because the rigidity of the first spring 34 is larger than the sum of the rigidities of the second springs 37, the first spring 34 is reset firstly, thereby pushing the second centrifugal cylinder 31 and the forming modules 35 to slide rightwards integrally after the mold closing, so that the feeding hole of each particle forming cavity 38 is misplaced with the glue injecting through hole to close the particle forming cavity 38, then injecting cooling liquid into each cooling liquid cavity 353 through the water supplying ring 33 and the cooling water channel, thereby carrying out rapid cooling forming on the molten plastic in the particle forming cavity 38 from two sides of the particle forming cavity 38 until the molten plastic is formed into regular polyhedron particles in the particle forming cavity 38, then the first spring 34 is reset completely, the stroke of the second centrifugal cylinder 31 is terminated, at this time, the connecting bracket 32 and each connecting shaft 36 drive each second molding ring 352 to slide rightwards under the action of the elastic force of the second spring 37, so that each second molding ring 352 is separated from and abutted against the corresponding first molding ring 351, the mold opening action is completed, and the regular polyhedron particles are discharged from the corresponding blanking window 311 under the action of centrifugal force after molding.
According to the embodiment, the rigidity difference of the first spring 34 and the second spring 37 is utilized, the die assembly between the first forming ring 351 and the second forming ring 352 and the glue injection sequence of the particle forming cavity 38 are opened, centrifugal glue injection is realized, the particle structure of the formed regular polyhedron is more compact, the molten plastic in the particle forming cavity 38 is cooled and formed by utilizing the cooling liquid cavities 353 of the first forming ring 351 and the second forming ring 352, the cooling speed is high, the formed particles do not need to be directly contacted with cooling water, the drying operation is avoided, the energy consumption is reduced, and the production efficiency is improved.
Based on the above embodiment, further, the opening and closing driving mechanism 4 includes a driving cylinder 41, a second bracket 42 and a pressing ring 43, where the second bracket 42 is fixedly installed on the first bracket 1, the driving cylinder 41 is installed on the second bracket 42, the pressing ring 43 is fixedly connected to the connecting bracket 32, and the pressing ring 43 is connected to an output end of the driving cylinder 41 through a third bracket 44. The driving cylinder 41 is utilized to drive the connecting bracket 32 to slide, so that the structure is simple and the cost is low; specifically, the compression ring 43 is convexly provided with two guide posts, and the two guide posts movably penetrate through the first bracket 1 and are fixedly connected to the third bracket 44, so that the stress of the connecting bracket 32 is more balanced.
Based on the above embodiment, further, the recycling mechanism 6 is further included, the recycling mechanism 6 includes a discharge pipe 61, a fourth support 62, a recycling pipe 63, a three-way joint 64 and a glue pump 65, the three-way joint 64 is connected to the injection molding pipe 23, one end of the discharge pipe 61 extends into the aggregate cover 22 along the axial movement of the aggregate cover 22, the fourth support 62 is mounted at the other end of the first support 1, the glue pump 65 is mounted on the fourth support 62, the other end of the discharge pipe 61 is connected with the glue pump 65, one end of the recycling pipe 63 is connected to the three-way joint 64, and the other end of the recycling pipe 63 is connected to the glue pump 65.
In actual use, the glue solution pump 65 sucks out the collected molten plastic in the aggregate cover 22 through the discharge pipe 61, then enters the three-way joint 64 through the recovery pipe 63, and then enters the injection molding pipeline 23 again from the three-way joint 64, so that the reutilization of the molten plastic is realized, and the method is more economical and environment-friendly.
Based on the above embodiment, further, the centrifugal glue injection device further comprises an outer cover 7 and a discharge chute 8, wherein two ends of the outer cover 7 are fixedly connected to the first bracket 1, the centrifugal glue injection mechanism 2 and the cooling forming mechanism 3 are located in the outer cover 7, a discharging gap is formed in the bottom of the outer cover 7, and the discharge chute 8 is fixedly connected to the outer cover 7 and located below the discharging gap. According to the embodiment, the outer cover 7 is arranged, so that the thrown regular polyhedron particles can be conveniently gathered to the position of the blanking notch, and then are collected in a concentrated mode through the blanking notch and the discharging chute 8.
In this embodiment, the rotation driving mechanism 5 includes a motor and a synchronous belt wheel set, the motor is installed on the first bracket 1, and an output end of the motor is in transmission connection with the collecting cover 22 through the synchronous belt wheel set.
Claims (7)
1. The plastic particle granulator for recycling the centrifugal high-efficiency waste plastic is characterized by comprising a first bracket (1), a centrifugal glue injection mechanism (2), a cooling forming mechanism (3), an opening and closing driving mechanism (4) and a rotary driving mechanism (5);
the centrifugal glue injection mechanism (2) is rotationally connected to the first bracket (1), and the centrifugal glue injection mechanism (2) is provided with a plurality of glue injection through holes;
the cooling forming mechanism (3) is sleeved on the outer wall of the centrifugal glue injection mechanism (2) in a sliding manner and can rotate along with the centrifugal glue injection mechanism (2); the cooling forming mechanism (3) comprises a plurality of particle forming cavities (38) which are of regular polyhedron structures and can be opened and closed, and a plurality of cooling liquid cavities (353) for cooling the particle forming cavities (38); each particle forming cavity (38) can be communicated with each glue injection through hole in a one-to-one correspondence manner;
the opening and closing driving mechanism (4) is arranged at one end of the first bracket (1), and the output end of the opening and closing driving mechanism (4) is connected with one end of the cooling forming mechanism (3);
the rotary driving mechanism (5) is arranged at the other end of the first bracket (1), and the output end of the rotary driving mechanism (5) is in transmission connection with one end of the centrifugal glue injection mechanism (2) away from the opening and closing driving mechanism (4);
the centrifugal glue injection mechanism (2) comprises a first centrifugal cylinder (21), a material collecting cover (22) and an injection molding pipeline (23), wherein the closed end of the first centrifugal cylinder (21) is rotationally connected to one end of the first bracket (1), the material collecting cover (22) is fixedly connected to the open end of the first centrifugal cylinder (21) and forms a glue injection cavity with the first centrifugal cylinder (21), the material collecting cover (22) is rotationally connected to the other end of the first bracket (1) and is in transmission connection with the output end of the rotary driving mechanism (5), the cooling forming mechanism (3) is slidably sleeved on the outer wall of the first centrifugal cylinder (21), the inner wall of the first centrifugal cylinder (21) is of a conical surface structure, the inner diameter of the closed end of the first centrifugal cylinder (21) is smaller than that of the open end of the first centrifugal cylinder, the circumferential wall of the first centrifugal cylinder (21) is uniformly provided with injection molding through holes communicated with the glue injection cavity, and the injection molding pipeline (23) extends into the glue injection cavity from the movable closed end of the first centrifugal cylinder (21) along the axial direction of the first centrifugal cylinder (21);
the cooling forming mechanism (3) comprises a second centrifugal cylinder (31), a connecting bracket (32) and a water supply ring (33);
the second centrifugal cylinder (31) is sleeved on the outer wall of the first centrifugal cylinder (21) in a sliding mode, the closed end of the second centrifugal cylinder (31) is sleeved with the closed end molded surface of the first centrifugal cylinder (21), a first spring (34) is arranged between the closed end of the second centrifugal cylinder (31) and the closed end of the first centrifugal cylinder (21), and blanking windows (311) are uniformly distributed on the peripheral wall of the second centrifugal cylinder (31); the water supply ring (33) is arranged at one end of the first bracket (1), and the connecting bracket (32) is sleeved on the water supply ring (33) in a sliding way;
forming modules (35) are uniformly distributed on the inner peripheral wall of the second centrifugal cylinder (31), particle forming cavities (38) are uniformly distributed on each forming module (35) along the circumferential direction, a feed inlet is formed in each particle forming cavity (38), and cooling liquid cavities (353) are respectively formed in two sides of each particle forming cavity (38) of each forming module (35);
a plurality of connecting shafts (36) are uniformly distributed in the second centrifugal cylinder (31), the connecting shafts (36) penetrate through the forming modules (35), and one end of each connecting shaft (36) penetrates out of the closed end of the second centrifugal cylinder (31) and is fixedly connected with the connecting bracket (32); one end of each connecting shaft (36) is sleeved with a second spring (37), and two ends of each second spring (37) are respectively abutted against the connecting shafts (36) and the closed ends of the second centrifugal cylinders (31); the sum of the stiffness of each second spring (37) is smaller than the stiffness of the first spring (34);
a cooling water channel which communicates the water supply ring (33) with each cooling liquid cavity (353) is arranged on the connecting bracket (32) and each connecting shaft (36); the connecting bracket (32) is connected with the output end of the opening and closing driving mechanism (4).
2. The centrifugal high-efficiency plastic particle granulator for recycling waste plastics according to claim 1, wherein heating rings (24) are uniformly distributed on the outer peripheral wall of the first centrifugal cylinder (21), and the heating rings (24) are staggered with injection molding through holes.
3. The centrifugal high-efficiency plastic particle granulator for recycling waste plastics according to claim 1, wherein each molding module (35) comprises a first molding ring (351) and a second molding ring (352), the first molding ring (351) is fixedly connected to the inner wall of the second centrifugal barrel (31), the second molding ring (352) is fixedly connected with each connecting shaft (36), half cavities (354) with regular polyhedron structures are uniformly distributed on two opposite sides between the first molding ring (351) and the second molding ring (352) along the circumferential direction, and cooling liquid cavities (353) are formed in the first molding ring (351) and the second molding ring (352).
4. The centrifugal high-efficiency plastic particle granulator for recycling waste plastics according to claim 1, wherein the opening and closing driving mechanism (4) comprises a driving air cylinder (41), a second support (42) and a pressing ring (43), the second support (42) is fixedly arranged on the first support (1), the driving air cylinder (41) is arranged on the second support (42), the pressing ring (43) is fixedly connected on the connecting support (32), and the pressing ring (43) is connected with the output end of the driving air cylinder (41) through a third support (44).
5. The centrifugal high-efficiency plastic particle granulator for recycling waste plastics according to claim 1, further comprising a recycling mechanism (6), wherein the recycling mechanism (6) comprises a discharge pipe (61), a fourth bracket (62), a recycling pipe (63), a three-way joint (64) and a glue pump (65), the three-way joint (64) is connected to the injection molding pipe (23), one end of the discharge pipe (61) movably stretches into the aggregate cover (22) along the axial direction of the aggregate cover (22), the fourth bracket (62) is mounted at the other end of the first bracket (1), the glue pump (65) is mounted on the fourth bracket (62), the other end of the discharge pipe (61) is connected with the glue pump (65), one end of the recycling pipe (63) is connected to the three-way joint (64), and the other end of the recycling pipe (63) is connected to the glue pump (65).
6. The centrifugal high-efficiency plastic particle granulator for recycling waste plastics according to claim 1, further comprising an outer cover (7) and a discharge chute (8), wherein two ends of the outer cover (7) are fixedly connected to the first bracket (1), the centrifugal glue injection mechanism (2) and the cooling forming mechanism (3) are located in the outer cover (7), a blanking notch is formed in the bottom of the outer cover (7), and the discharge chute (8) is fixedly connected to the outer cover (7) and located below the blanking notch.
7. A method of using the centrifugal type efficient plastic pellet mill for recycling waste plastic according to any one of claims 1 to 6, comprising the steps of:
s100: the rotary driving mechanism (5) drives the centrifugal glue injection mechanism (2) to rotate, the centrifugal glue injection mechanism (2) drives the cooling forming mechanism (3) to rotate, molten plastic is injected into the box centrifugal glue injection mechanism (2) at the same time, the opening and closing driving mechanism (4) drives the cooling forming mechanism (3) to slide forward relative to the centrifugal glue injection mechanism (2), so that each particle forming cavity (38) is closed and is communicated with the glue injection through holes in a one-to-one correspondence mode, and the molten plastic enters each particle forming cavity (38) through each glue injection through hole under the action of centrifugal force;
s200: after the glue injection is completed, injecting cooling liquid into each cooling liquid cavity (353) to enable the cooling liquid to cool and mold the molten plastic in each particle forming cavity (38) into regular polyhedron particles;
s300: after the forming is finished, the opening and closing driving mechanism (4) drives the cooling forming mechanism (3) to reversely slide relative to the centrifugal glue injection mechanism (2) so that each particle forming cavity (38) is opened, and then the regular polyhedron particles in each particle forming cavity (38) are discharged under the action of centrifugal force, so that the manufacturing and forming of a batch of regular polyhedron particles are finished;
s400: after the regular polyhedron particles are discharged from the particle forming cavity (38), the steps S100 to S300 are repeated, and the regular polyhedron particles are continuously produced.
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| CN202210157861.5A CN114393738B (en) | 2022-02-21 | 2022-02-21 | Plastic particle granulator for recycling centrifugal high-efficiency waste plastics and using method |
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| US4563315A (en) * | 1982-09-27 | 1986-01-07 | Adelaide & Wallaroo Fertilizers Ltd. | Production of particulate solids in rotary fluidizer |
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| CN110871529A (en) * | 2019-11-27 | 2020-03-10 | 六安丰恺尼机电科技有限公司 | Plastic particle forming machine |
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| US4563315A (en) * | 1982-09-27 | 1986-01-07 | Adelaide & Wallaroo Fertilizers Ltd. | Production of particulate solids in rotary fluidizer |
| JPH08216149A (en) * | 1995-02-13 | 1996-08-27 | Teijin Ltd | Preparation of resin pellet and its apparatus |
| JP2001277237A (en) * | 2000-03-31 | 2001-10-09 | Kanegafuchi Chem Ind Co Ltd | Granulating device for thermoplastic resin |
| CN110871522A (en) * | 2019-11-24 | 2020-03-10 | 六安丰恺尼机电科技有限公司 | Rotary mold circulation injection molding process for plastic particles |
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