CN117087128B - Conveying device and conveying method for PEEK material and preparation method of conveying device and conveying method - Google Patents
Conveying device and conveying method for PEEK material and preparation method of conveying device and conveying method Download PDFInfo
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- CN117087128B CN117087128B CN202311353753.6A CN202311353753A CN117087128B CN 117087128 B CN117087128 B CN 117087128B CN 202311353753 A CN202311353753 A CN 202311353753A CN 117087128 B CN117087128 B CN 117087128B
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- 239000000463 material Substances 0.000 title claims abstract description 133
- 239000004696 Poly ether ether ketone Substances 0.000 title claims abstract description 30
- 229920002530 polyetherether ketone Polymers 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 18
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 title claims abstract 5
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000012943 hotmelt Substances 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910002804 graphite Inorganic materials 0.000 description 9
- 239000010439 graphite Substances 0.000 description 9
- 239000011812 mixed powder Substances 0.000 description 9
- 238000004891 communication Methods 0.000 description 5
- 239000007822 coupling agent Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
-
- 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
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
- B29B13/065—Conditioning or physical treatment of the material to be shaped by drying of powder 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
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/287—Raw material pre-treatment while feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
The invention relates to the technical field of conveying, in particular to a conveying device and a conveying method for PEEK materials and a preparation method thereof. The invention provides a conveying device for PEEK materials, wherein a driving motor is horizontally arranged, and a screw extruder is in transmission connection with the driving motor; the upper end of the spiral extruder is provided with a feeding pipe which is matched with the spiral feeding machine; the hot melt forming machine is fixed at the end part of the screw extruder far away from the driving motor; the spiral feeding machine is obliquely arranged and is suitable for conveying materials to the spiral extruder; the linkage part is slidably arranged in the spiral feeding machine and is in linkage with the material; when the material moves to the spiral extruder in the spiral feeding machine, the linkage part is suitable for blowing air to the material to dry the moisture on the surface of the material; when the material is blocked at the discharge hole of the spiral feeding machine, the material is suitable for extruding the linkage part to enable the linkage part to slide obliquely upwards, and the linkage part is linked with the inner wall of the discharge hole to blow and dredge the material.
Description
Technical Field
The invention relates to the technical field of conveying, in particular to a conveying device and a conveying method for PEEK materials and a preparation method thereof.
Background
Polyether ether ketone (PEEK) is one of the most representative types of polyaryletherketone polymers, has outstanding mechanical properties, and is very good in high temperature resistance, corrosion resistance, flame retardance, irradiation resistance, electrical insulation, and the like.
When the PEEK granular material is fed to the extruder through the screw conveyor, the blanking port is blocked by the PEEK granular material, and the extruder has to be stopped and dredged; this results in a decrease in the working efficiency; therefore, it is necessary to develop a conveying device, a conveying method and a preparation method of the PEEK material.
Disclosure of Invention
The invention aims to provide a conveying device, a conveying method and a preparation method of PEEK materials.
In order to solve the technical problem, the invention provides a conveying device for PEEK materials, which comprises:
the device comprises a driving motor, a hot melt forming machine, a screw extruder, a screw feeding machine and a linkage part, wherein the driving motor is horizontally arranged, and the screw extruder is in transmission connection with the driving motor;
the upper end of the spiral extruder is provided with a feeding pipe which is matched with the spiral feeding machine;
the hot melt forming machine is fixed at the end part of the screw extruder, which is far away from the driving motor;
the spiral feeding machine is obliquely arranged and is suitable for conveying materials to the spiral extruder;
the linkage part is slidably arranged in the spiral feeding machine and is in linkage with the material; wherein,
when the material moves to the spiral extruder in the spiral feeding machine, the linkage part is suitable for blowing air to the material to dry the moisture on the surface of the material;
when the material is blocked at the discharge hole of the spiral feeding machine, the material is suitable for extruding the linkage part to enable the linkage part to slide obliquely upwards, and the linkage part is linked with the inner wall of the discharge hole to blow and dredge the material.
Preferably, the spiral feeder includes: the feeding pipe, the discharging pipe, the fixed cylinder and the screw rod are hollow in the fixed cylinder, and the fixed cylinder is obliquely arranged;
the feeding pipe is fixed at the upper end of the lower part of the fixed cylinder and is suitable for feeding materials into the fixed cylinder;
the screw rod is rotatably arranged in the fixed cylinder and is suitable for driving the material to move in the fixed cylinder;
the blanking pipe is fixed at the lower end of the upper part of the fixed cylinder, and is arranged above the feeding pipe;
the linkage part is sleeved on the outer wall of the rotating shaft of the screw rod and is arranged above the blanking pipe; wherein,
when the screw rod circumferentially rotates to drive the material to move towards the blanking pipe, the linkage part is suitable for blowing air towards the material to dry the material.
Preferably, the linkage part includes: the limiting cone is slidably sleeved on the outer wall of the rotating shaft of the screw rod, and the limiting cone is arranged above the feeding pipe;
the fixed disc is fixed in the fixed cylinder, and the rotating shaft penetrates through the fixed disc;
the positioning disc is sleeved on the outer wall of the rotating shaft, and the positioning disc is parallel to the fixed disc;
the outer sleeve is sleeved on the outer wall of the rotating shaft, a gap is arranged between the outer sleeve and the outer wall of the rotating shaft,
the two ends of the outer sleeve are respectively fixed on the positioning disc and the side wall of the limiting cone;
an air inlet channel is formed in the upper end of the fixed disc and is communicated with the outer sleeve;
the limiting cone is provided with a plurality of air spraying channels, the air spraying channels are communicated with the outer sleeve, and the air spraying channels face the spiral rod; wherein,
compressed air is adapted to be delivered through the outer sleeve to the air jet duct to dry the material.
As a preferred alternative to this,
an air inlet is formed in the upper end of the outer wall of the outer sleeve, is oval, and is communicated with the air inlet channel.
Preferably, the fixed disc is further provided with an air outlet channel, the air outlet channel and the air inlet channel are symmetrically arranged, and the air outlet channel is communicated with the blanking pipe.
Preferably, an inclined nozzle is fixed at the upper end of the inner wall of the discharging pipe, the inclined nozzle faces the screw rod, and the inclined nozzle is communicated with the air outlet channel.
Preferably, the lower end of the outer wall of the outer sleeve is provided with an air outlet, and when the limiting cone moves towards the direction of the fixed disc, the air outlet is suitable for being communicated with the outer sleeve and the air outlet channel.
As a preferred alternative to this,
a plurality of gas delivery channels are radially arranged in the limiting cone, one end of each gas delivery channel is communicated with the outer sleeve, and the other end of each gas delivery channel is communicated with the air injection channel.
Preferably, the linkage part further comprises a plurality of limit posts, one limit post corresponds to one air spraying channel, one end of each limit post is fixed on the side wall of the positioning disc, and the other end of each limit post is slidably arranged in the air spraying channel; wherein,
when the limiting cone moves towards the direction of the fixed disc, the limiting column is suitable for being inserted into the air injection channel, and the limiting column is suitable for sealing the air conveying channel.
Preferably, a reset spring is sleeved on the outer wall of the limiting column, one end of the reset spring is fixed on the side wall of the fixed disc, and the other end of the reset spring is fixed on the side wall of the limiting cone.
As a preferred alternative to this,
a feeding box is fixed above the feeding pipe, the feeding box is in an open hopper shape, and the diameter of the feeding box is larger than that of the feeding pipe.
On the other hand, the invention also provides a conveying method of the conveying device of the PEEK material, after the granular material is poured into the feeding box, the material enters the fixed cylinder through the feeding pipe, and the screw rod rotates circumferentially to drive the material to move from the discharging pipe to the discharging pipe;
when the material moves to be close to the limiting cone, compressed air in the air inlet channel is suitable for flowing into the outer sleeve, and the compressed air is sprayed onto the material through the air spraying channel, so that the compressed air is suitable for drying moisture on the surface of the material;
when the materials are piled at the blanking pipe, the mutually piled materials are suitable for pushing the limiting cone, so that the limiting cone moves towards the fixed disc, at the moment, the limiting column is suitable for being inserted into the air injection channel, and the limiting column is suitable for sealing the air conveying channel;
the limiting cone is suitable for driving the outer sleeve to synchronously move in the process of moving towards the fixed disc, and at the moment, the air outlet holes are used for communicating the outer sleeve with the air outlet channels;
compressed air entering the outer sleeve through the air inlet channel is suitable for flowing to the inclined nozzle through the air outlet channel, and compressed air sprayed by the inclined nozzle is suitable for being sprayed to the mutually stacked materials so as to convey the blocked blanking pipe.
On the other hand, the invention also provides a preparation method of the PEEK material, which comprises the following steps of: mixing flake graphite and expanded graphite in proportion to form mixed powder, adding a coupling agent into the mixed powder, and continuously and uniformly mixing to form modified mixed powder for later use;
step 2: and (3) adding PEEK into a main feeding port and a side feeding port of the double-screw extruder, adding the modified mixed powder in the step (1), and extruding and granulating to obtain the PEEK material with high heat conductivity coefficient.
The conveying device for the PEEK material has the advantages that through the cooperation of the linkage part and the spiral feeding machine, when materials in the spiral feeding machine are not blocked, the linkage part can blow compressed air to the materials to dry the materials, and when the materials block the discharging pipe, the linkage part can convey the compressed air into the discharging pipe to dredge the discharging pipe, so that the trouble of manual cleaning is avoided, and the working efficiency is improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a preferred embodiment of a PEEK material delivery apparatus of the present invention;
FIG. 2 is an internal perspective view of the screw feeder of the present invention;
FIG. 3 is a partial cross-sectional view of the screw feeder and linkage of the present invention;
fig. 4 is a perspective view of the linkage part of the present invention;
fig. 5 is an internal perspective view of the linkage part of the present invention.
In the figure:
1. a driving motor; 2. a hot melt molding machine; 3. a screw extruder;
4. a spiral feeder; 41. a feeding pipe; 42. discharging pipes; 43. a fixed cylinder; 44. a screw rod;
5. a linkage part; 51. a limiting cone; 52. a fixed plate; 53. a positioning plate; 54. an outer sleeve; 55. an air inlet channel; 56. an air spraying passage; 57. an air inlet hole; 58. an air outlet channel; 59. tilting the nozzle; 60. an air outlet hole; 61. an air delivery channel; 62. and a limit column.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In a first embodiment, as shown in fig. 1 to 5, the present invention provides a conveying device for PEEK material, including: the hot melt forming machine comprises a driving motor 1, a hot melt forming machine 2, a screw extruder 3, a screw feeding machine 4 and a linkage part 5, wherein the driving motor 1 is horizontally arranged, and the screw extruder 3 is in transmission connection with the driving motor 1; the driving motor 1 is suitable for driving a spiral impeller in the spiral extruder 3 to circumferentially rotate, and the spiral impeller is suitable for pushing materials to move towards the hot melt forming machine 2; the upper end of the screw extruder 3 is provided with a feeding pipe which is matched with the screw feeder 4; after the material conveyed by the spiral feeder 4 falls into the feeding pipe, the material enters the spiral extruder 3 through the feeding pipe. The hot melt forming machine 2 is fixed at the end part of the screw extruder 3, which is far away from the driving motor 1; the hot melt molding machine 2 is adapted to heat a molten material and to extrude the material. The screw feeder 4 is obliquely arranged, a supporting fixing frame is fixed at the lower end of the screw feeder 4, the supporting fixing frame is arranged on one side of the screw extruder 3, and the screw feeder 4 is suitable for conveying materials to the screw extruder 3; the linkage part 5 is slidably arranged in the spiral feeder 4, and the linkage part 5 is in linkage with the material; wherein, when the material moves to the screw extruder 3 in the screw feeder 4, the linkage part 5 is suitable for blowing air to the material to dry the moisture on the surface of the material; when the material is blocked at the discharge hole of the spiral feeder 4, the material is suitable for extruding the linkage part 5 to enable the linkage part to slide obliquely upwards, and the linkage part 5 is linked with the inner wall of the discharge hole to blow and dredge the material. Through the cooperation of linkage portion 5 and spiral feeder 4, when the material in spiral feeder 4 does not have to block up, linkage portion 5 can blow compressed air in order to dry the material to the material, and when the unloading pipe 42 is blockked up to the material, linkage portion 5 can carry compressed air in to unloading pipe 42 to dredge unloading pipe 42, avoided the trouble of manual cleaning, improved work efficiency.
In order to facilitate the transport of the material, the screw feeder 4 comprises: the automatic feeding device comprises a feeding pipe 41, a discharging pipe 42, a fixed cylinder 43 and a screw rod 44, wherein the fixed cylinder 43 is hollow, and the fixed cylinder 43 is obliquely arranged; a feeding box is fixed above the feeding pipe 41, the feeding box is in an open bucket shape, and the diameter of the feeding box is larger than that of the feeding pipe 41. The feeding box is arranged, redundant materials are conveniently borne, and after the materials are dumped in the feeding box, the screw rod 44 circumferentially rotates and is suitable for driving the workpiece to move towards the screw extruder 3. The feeding pipe 41 is fixed at the upper end of the lower part of the fixed cylinder 43, and the feeding pipe 41 is suitable for feeding materials into the fixed cylinder 43; the screw rod 44 is rotatably arranged in the fixed cylinder 43, the screw rod 44 is matched with the fixed cylinder 43, and the screw rod 44 is suitable for driving materials to move in the fixed cylinder 43; one end of the fixed cylinder 43, which is close to the blanking pipe 42, is fixed with a motor, the screw rod 44 is in transmission connection with the motor, and the motor is suitable for driving the screw rod 44 to rotate circumferentially. The blanking pipe 42 is fixed at the lower end of the upper part of the fixed cylinder 43, and the blanking pipe 42 is arranged above the feeding pipe; when the screw rod 44 drives the workpiece to move towards the blanking pipe 42, the material is suitable for entering the feeding pipe through the blanking pipe 42; the linkage part 5 is sleeved on the outer wall of the rotating shaft of the screw rod 44, and the linkage part 5 is suitable for sliding relative to the fixed cylinder 43; the linkage part 5 is arranged above the blanking pipe 42; wherein, when the screw rod 44 rotates circumferentially to drive the material to move towards the discharging pipe 42, the linkage part 5 is suitable for blowing air towards the material to dry the material.
In order to facilitate dredging the blanking pipe 42, the linkage part 5 includes: the limiting cone 51, the fixed disc 52, the positioning disc 53 and the outer sleeve 54, wherein the limiting cone 51 is slidably sleeved on the outer wall of the rotating shaft of the screw rod 44, and the limiting cone 51 is arranged above the feeding pipe; the conical surface of the screw 44 faces the material; the fixed disc 52 is fixed in the fixed cylinder 43, and the rotating shaft penetrates through the fixed disc 52; the limiting cone 51 and the positioning disc 53 can slide along the outer wall of the rotating shaft relative to the fixed disc 52; the positioning disc 53 is sleeved on the outer wall of the rotating shaft, the positioning disc 53 is parallel to the fixed disc 52, and the positioning disc 53 is linked with the fixed disc 52; the outer sleeve 54 is sleeved on the outer wall of the rotating shaft, a gap is arranged between the outer sleeve 54 and the outer wall of the rotating shaft, compressed air is suitable for entering a cavity between the outer sleeve 54 and the rotating shaft, and two ends of the outer sleeve 54 are respectively fixed on the side walls of the positioning disc 53 and the limiting cone 51; when the limiting cone 51 is pushed by the material to move towards the fixed disc 52, the outer sleeve 54 is suitable for pushing the positioning disc 53 to move away from the fixed disc 52. An air inlet 55 is formed in the upper end of the fixed disc 52, and the air inlet 55 is communicated with the outer sleeve 54; an air pump is fixed on one side of the fixed cylinder 43, the air pump is communicated with the air inlet 55 through an air pipe, the air cylinder is suitable for conveying compressed air into the outer sleeve 54 through the air inlet 55, and the compressed air is suitable for being sprayed to the surface of the material through the air spraying channel 56 so as to dry the moisture on the surface of the material. A plurality of air spraying channels 56 are formed in the limiting cone 51, the air spraying channels 56 are communicated with the outer sleeve 54, and the air spraying channels 56 face the spiral rod 44; wherein compressed air is adapted to be delivered through the outer sleeve 54 to the air jet 56 for drying the material. During the process of circumferentially rotating the screw 44 to convey the material, the air injection channel 56 continuously injects compressed air outwards to play a role in drying the surface moisture of the material; at this time, the compressed air sprayed outward can also prevent foreign substances or dust from entering the air spraying duct 56.
To facilitate communication between the jet duct 56 and the intake duct 55; an air inlet 57 is formed in the upper end of the outer wall of the outer sleeve 54, the air inlet 57 is oval, and the air inlet 57 is communicated with the air inlet 55. In the normal working state of the screw rod 44, the air inlet 57 is communicated with the air inlet 55, and the right end of the air inlet 57 is sealed by the inner wall of the fixed disc 52; when the material is blocked and pushes the limiting cone 51 to move towards the fixed disc 52, the outer sleeve 54 slides towards the fixed disc 52 synchronously, at this time, the left end of the air inlet 57 is blocked and sealed by the inner wall of the fixed disc 52, and the right end of the air inlet 57 is communicated with the air inlet 55, so that the air inlet 55 can be communicated with the outer sleeve 54 all the time.
In order to dredge the blanking pipe 42, the fixing plate 52 is further provided with an air outlet channel 58, the air outlet channel 58 is symmetrically arranged with the air inlet channel 55, and the air outlet channel 58 is communicated with the blanking pipe 42. An inclined nozzle 59 is fixed at the upper end of the inner wall of the discharging pipe 42, the inclined nozzle 59 faces the screw rod 44, and the inclined nozzle 59 is communicated with the air outlet channel 58. An air outlet hole 60 is formed at the lower end of the outer wall of the outer sleeve 54, and the air outlet hole 60 is adapted to communicate the outer sleeve 54 with the air outlet channel 58 when the limiting cone 51 moves towards the fixed disc 52.
In the normal working state of the screw 44, the air inlet 57 is communicated with the air inlet 55; at this time, the air outlet holes 60 are sealed by the inner wall of the fixed disk 52, and the compressed air entering the outer sleeve 54 is suitable for being sprayed to the material through the air spraying channel 56.
When the material is blocked and pushes the limiting cone 51 to move towards the fixed disc 52, the outer sleeve 54 synchronously slides towards the fixed disc 52, the left end of the air inlet 57 is blocked and sealed by the inner wall of the fixed disc 52, and the right end of the air inlet 57 is communicated with the air inlet 55, so that the air inlet 55 can be always communicated with the outer sleeve 54; at this time, the air outlet hole 60 is communicated with the air outlet channel 58, and meanwhile, the air conveying channel 61 is blocked by the limiting column 62, the compressed air entering the outer sleeve 54 through the air inlet channel 55 is suitable for flowing to the inclined nozzle 59 through the air outlet channel 58, and the inclined nozzle 59 sprays the compressed air towards the material stacking blocking position to unblock the blanking pipe 42, so that the material can fall into the feeding pipe along the blanking pipe 42.
In order to spray compressed air to the materials, a plurality of air delivery channels 61 are radially formed in the limiting cone 51, one end of each air delivery channel 61 is communicated with the outer sleeve 54, and the other end of each air delivery channel 61 is communicated with the air spraying channel 56. Compressed air enters the outer sleeve 54 through the air inlet 55 and is then sprayed to the air spraying channel 56 through the air conveying channel 61.
In order to prevent the limiting cone 51 from rotating circumferentially relative to the fixed disc 52, the linkage part 5 further includes a plurality of limiting columns 62, one limiting column 62 corresponds to one air injection channel 56, one end of the limiting column 62 is fixed on the side wall of the positioning disc 53, the other end of the limiting column 62 is slidably disposed in the air injection channel 56, and the limiting column 62 and the air injection channel 56 are slidably sealed; when the screw 44 is normally conveying materials, the limit column 62 cannot seal the gas conveying channel 61; in order to prevent the limiting cone 51 from being far away from the fixed disc 52, a limiting piece is fixed on the outer wall of the rotating shaft, when the screw rod 44 normally conveys materials, the lower end of the limiting cone 51 is abutted against the limiting piece, at this time, the limiting column 62 is thrown and inserted into the air injection channel 56, and at this time, the limiting column 62 cannot block the air delivery channel 61. When the material pushes the limiting cone 51 to move towards the fixed disc 52, the limiting column 62 is suitable for being inserted into the air injection channel 56, and the limiting column 62 is suitable for sealing the air delivery channel 61. The limiting cone 51 is suitable for driving the positioning disc 53 to synchronously move in a direction away from the fixed disc 52 in the process of moving towards the fixed disc 52; the positioning plate 53 is adapted to the inner wall of the fixed cylinder 43, and the inner wall of the upper end of the fixed cylinder 43 is provided with lubricating grease. When the positioning disk 53 moves away from the fixed disk 52, the lubricating grease in the fixed cylinder 43 is pushed to flow to the bearing at the end of the outer sleeve 54 so as to slide into the bearing at the outer wall of the rotating shaft. The outer wall of the limiting post 62 is sleeved with a reset spring, one end of the reset spring is fixed on the side wall of the fixed disc 52, and the other end of the reset spring is fixed on the side wall of the limiting cone 51. And the reset spring is suitable for pushing the limiting cone 51 to reset after the blocked material at the blanking pipe 42 is dredged.
An embodiment two, the present embodiment also provides a conveying method of a conveying device for PEEK materials on the basis of the embodiment one, including a conveying device for PEEK materials as described in embodiment one, and the specific structure is the same as that of embodiment one, and the conveying method of a conveying device for PEEK materials is not described here again, and is as follows:
after the granular materials are poured into the feeding box, the materials enter the fixed cylinder 43 through the feeding pipe 41, and the screw rod 44 rotates circumferentially to drive the materials to move from the direction of the discharging pipe 42 to the direction of the discharging pipe 42;
when the material moves to be close to the limiting cone 51, the compressed air in the air inlet 55 is suitable for flowing into the outer sleeve 54, and is sprayed onto the material through the air spraying channel 56, and the compressed air is suitable for drying the moisture on the surface of the material;
when the materials are piled at the discharging pipe 42, the materials piled on each other are suitable for pushing the limiting cone 51, so that the limiting cone 51 moves towards the fixed disc 52, at this time, the limiting column 62 is suitable for being inserted into the air spraying channel 56, and the limiting column 62 is suitable for sealing the air conveying channel 61;
in the process of moving the limiting cone 51 to the fixed disc 52, the outer sleeve 54 is driven to move synchronously, and at this time, the air outlet hole 60 communicates the outer sleeve 54 with the air outlet channel 58;
compressed air entering the outer sleeve 54 through the inlet duct 55 is adapted to flow through the outlet duct 58 to the inclined nozzle 59, and compressed air blown out of the inclined nozzle 59 is adapted to be blown onto the material stacked on top of each other to convey the blocked blanking pipe 42.
An embodiment three, the present embodiment further provides a preparation method of a PEEK material based on the embodiment one, including a preparation method of a PEEK material as described in embodiment one, and the specific structure is the same as that of embodiment one, and the specific preparation method of a PEEK material is not described here again, and is as follows:
step 1: mixing flake graphite and expanded graphite according to the proportion to form mixed powder, adding a coupling agent into the mixed powder, and continuously and uniformly mixing to form modified mixed powder for later use;
step 2: and (3) adding PEEK into a main feeding port and a side feeding port of the double-screw extruder, adding the modified mixed powder in the step (1), and extruding and granulating to obtain the PEEK composite material with high heat conductivity coefficient.
Wherein 75 parts of PEEK, 8 parts of crystalline flake graphite and 17 parts of expanded graphite in the step 2;
wherein the grain diameter of the flake graphite is 10um-2mm, and the carbon content in the flake graphite is more than or equal to 94%; the average grain diameter of the expanded graphite is 10um-2mm.
Wherein the dosage of the coupling agent in the step 1 is 1% of the weight of the mixed powder, and the coupling agent is sPEEK; the feeding frequency of the main feeding port in the step 2 is 20Hz, the feeding frequency of the side feeding port is 6Hz, and the screw rotating speed of the double screw extruder is 320rpm; extrusion granulation zone temperatures: the temperature of the first area is 350 ℃, the temperatures of the second area and the tenth area of the machine barrel are 370 ℃, and the temperature of the die is 360 ℃.
The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software programs referred to in the present application are all prior art, and the present application does not relate to any improvement of the software programs.
In the description of embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. A PEEK material delivery device, comprising:
the hot melt forming machine comprises a driving motor (1), a hot melt forming machine (2), a screw extruder (3), a screw feeding machine (4) and a linkage part (5), wherein the driving motor (1) is horizontally arranged, and the screw extruder (3) is in transmission connection with the driving motor (1);
the upper end of the spiral extruder (3) is provided with a feeding pipe which is matched with the spiral feeding machine (4);
the hot melt forming machine (2) is fixed at the end part of the screw extruder (3) far away from the driving motor (1);
the spiral feeding machine (4) is obliquely arranged, and the spiral feeding machine (4) is suitable for conveying materials to the spiral extruder (3);
the linkage part (5) is slidably arranged in the spiral feeding machine (4), and the linkage part (5) is in linkage with the materials; wherein,
when the material moves to the spiral extruder (3) in the spiral feeder (4), the linkage part (5) is suitable for blowing air to the material to dry the moisture on the surface of the material;
when the material is blocked at the discharge port of the spiral feeder (4), the material is suitable for extruding the linkage part (5) to enable the linkage part (5) to slide obliquely upwards, and the linkage part (5) is linked with the inner wall of the discharge port to blow and dredge the material;
the linkage part (5) comprises: the spiral rod feeding device comprises a limiting cone (51), a fixed disc (52), a positioning disc (53) and an outer sleeve (54), wherein the limiting cone (51) is slidably sleeved on the outer wall of a rotating shaft of the spiral rod, and the limiting cone (51) is arranged above the feeding pipe;
the fixed disc (52) is fixed in the fixed cylinder (43), and the rotating shaft penetrates through the fixed disc (52);
the positioning disc (53) is sleeved on the outer wall of the rotating shaft, and the positioning disc (53) and the fixed disc (52) are parallel to each other;
the outer sleeve (54) is sleeved on the outer wall of the rotating shaft, a gap is arranged between the outer sleeve (54) and the outer wall of the rotating shaft,
two ends of the outer sleeve (54) are respectively fixed on the side walls of the positioning disc (53) and the limiting cone (51);
an air inlet channel (55) is formed in the upper end of the fixed disc (52), and the air inlet channel (55) is communicated with the outer sleeve (54);
a plurality of air spraying channels (56) are formed in the limiting cone (51), the air spraying channels (56) are communicated with the outer sleeve (54), and the air spraying channels (56) face the spiral rod (44); wherein,
compressed air is adapted to be delivered through the outer sleeve (54) to the air jet (56) to dry the material;
an air inlet (57) is formed in the upper end of the outer wall of the outer sleeve (54), the air inlet (57) is oval, and the air inlet (57) is communicated with the air inlet channel (55);
the fixed disc (52) is also provided with an air outlet channel (58), the air outlet channel (58) is symmetrically arranged with the air inlet channel (55), and the air outlet channel (58) is communicated with the blanking pipe (42);
an inclined nozzle (59) is fixed at the upper end of the inner wall of the discharging pipe (42), the inclined nozzle (59) faces the screw rod (44), and the inclined nozzle (59) is communicated with the air outlet channel (58);
an air outlet hole (60) is formed in the lower end of the outer wall of the outer sleeve (54), and the air outlet hole (60) is suitable for communicating the outer sleeve (54) with the air outlet channel (58) when the limiting cone (51) moves towards the direction of the fixed disc (52);
a plurality of gas delivery channels (61) are radially formed in the limiting cone (51), one end of each gas delivery channel (61) is communicated with the outer sleeve (54), and the other end of each gas delivery channel (61) is communicated with the corresponding gas injection channel (56).
2. A PEEK material delivery apparatus as in claim 1, wherein,
the spiral feeder (4) comprises: the automatic feeding device comprises a feeding pipe (41), a discharging pipe (42), a fixed cylinder (43) and a screw rod (44), wherein the fixed cylinder (43) is hollow, and the fixed cylinder (43) is obliquely arranged;
the feeding pipe (41) is fixed at the upper end of the lower part of the fixed cylinder (43), and the feeding pipe (41) is suitable for feeding materials into the fixed cylinder (43);
the screw rod (44) is rotatably arranged inside the fixed cylinder (43), and the screw rod (44) is suitable for driving materials to move in the fixed cylinder (43);
the blanking pipe (42) is fixed at the lower end of the upper part of the fixed cylinder (43), and the blanking pipe (42) is arranged above the feeding pipe;
the linkage part (5) is sleeved on the outer wall of the rotating shaft of the screw rod (44), and the linkage part (5) is arranged above the blanking pipe (42); wherein,
when the screw rod rotates circumferentially to drive the material to move towards the blanking pipe (42), the linkage part (5) is suitable for blowing air towards the material to dry the material.
3. A PEEK material delivery apparatus as in claim 2, wherein,
the linkage part (5) further comprises a plurality of limit posts (62), one limit post (62) corresponds to one air spraying channel (56), one end of the limit post (62) is fixed on the side wall of the positioning disc (53), and the other end of the limit post (62) is slidably arranged in the air spraying channel (56); wherein,
when the limiting cone (51) moves towards the fixed disc (52), the limiting column (62) is suitable for being inserted into the air injection channel (56), and the limiting column (62) is suitable for sealing the air conveying channel (61).
4. A PEEK material delivery apparatus as in claim 3 wherein,
the outer wall of the limiting column (62) is sleeved with a reset spring, one end of the reset spring is fixed on the side wall of the fixed disc (52), and the other end of the reset spring is fixed on the side wall of the limiting cone (51).
5. A PEEK material delivery apparatus as in claim 4 wherein,
a feeding box is fixed above the feeding pipe (41), the feeding box is in an open bucket shape, and the diameter of the feeding box is larger than that of the feeding pipe (41).
6. A method for transporting a PEEK material transporting device, characterized in that the PEEK material transporting device according to claim 5 is used,
after the granular materials are poured into the feeding box, the materials enter the fixed cylinder (43) through the feeding pipe (41), and the spiral rod (44) rotates circumferentially to drive the materials to move from the direction of the blanking pipe (42);
when the material moves to be close to the limiting cone (51), compressed air in the air inlet channel (55) is suitable for flowing into the outer sleeve (54), and the compressed air is sprayed onto the material through the air injection channel (56), so that the compressed air is suitable for drying moisture on the surface of the material;
when materials are piled up at the blanking pipe (42), the mutually piled materials are suitable for pushing the limiting cone (51) so that the limiting cone (51) moves towards the fixed disc (52), at the moment, the limiting column (62) is suitable for being inserted into the air injection channel (56), and the limiting column (62) is suitable for sealing the air conveying channel (61);
the limiting cone (51) is suitable for driving the outer sleeve (54) to synchronously move in the process of moving towards the fixed disc (52), and at the moment, the air outlet hole (60) is used for communicating the outer sleeve (54) with the air outlet channel (58);
compressed air entering the outer sleeve (54) through the air inlet channel (55) is suitable for flowing to the inclined nozzle (59) through the air outlet channel (58), and the compressed air sprayed by the inclined nozzle (59) is suitable for being sprayed to the mutually stacked materials so as to convey the blocked blanking pipe (42).
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| CN117945114B (en) * | 2024-03-25 | 2024-06-25 | 江苏君华特种高分子材料股份有限公司 | Material feeding and conveying system for PEEK (polyether-ether-ketone) plates and process method thereof |
| CN118144239B (en) * | 2024-05-10 | 2024-09-06 | 江苏君华特种高分子材料股份有限公司 | PEEK particle spiral conveying device and conveying method thereof |
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Address after: 213100 no.7-16, Yangtze River Delta mold City, Wujin high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Junhua Special Polymer Materials Co.,Ltd. Patentee after: Shandong Junhao High Performance Polymer Co.,Ltd. Address before: No. 7-16, Yangtze River Delta Mold City, Wujin High tech Industrial Development Zone, Changzhou City, Jiangsu Province, 213000 Patentee before: JIANGSU JUNHUA HIGH PERFORMANCE SPECIALTY ENGINEERING PLASTICS (PEEK) PRODUCTS CO.,LTD. Patentee before: Shandong Junhao High Performance Polymer Co.,Ltd. |