CN110640929B

CN110640929B - Plastic pelletization production line

Info

Publication number: CN110640929B
Application number: CN201910913405.7A
Authority: CN
Inventors: 朱小斌; 黄国柱; 赵文波
Original assignee: Dongguan Kaibai Plastic Technology Co ltd
Current assignee: Dongguan Kaibai Plastic Technology Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2021-08-13
Anticipated expiration: 2039-09-25
Also published as: CN110640929A

Abstract

The invention relates to the technical field of plastic granulation processing equipment, in particular to a plastic granulation production line, which has the technical scheme that: the plastic particle screening device comprises a feed hopper, wherein the feed hopper is connected with a mixing component, the mixing component is connected with a plastic extruder, the discharge end of the plastic extruder is connected with a water cooling mechanism, the water cooling mechanism is connected with a granulator, and the discharge end of the granulator is provided with a collecting and screening device for receiving and screening plastic particles; the water cooling mechanism comprises a cooling water tank, a dewatering mechanism and a dryer which are connected in sequence, the cooling water tank is connected with a conveying roller in a rotating mode towards one side of the plastic extruder, cooling water is arranged in the cooling water tank, and the dewatering mechanism comprises a cooling water tank with the top being provided with an opening, a plurality of mounting plates arranged at the top of the cooling water tank and bristles arranged on the mounting plates along the length direction of the cooling water tank. This production line can carry out good cooling and stoving with the plastics that draw.

Description

Plastic pelletization production line

Technical Field

The invention relates to the technical field of plastic granulation processing equipment, in particular to a plastic granulation production line.

Background

Plastic products are now widely used in every field of modern life, such as household appliances, instruments, plastic wire cables, construction equipment, communication electronics, automotive industry, aerospace, everyday hardware, and the like.

At present, a system for producing plastic granules generally comprises a plastic extruder, a water tank, an air dryer and a granulator which are arranged in sequence. The water of the banding plastics of plastics extruder extrusion in through the basin cools off the cooling, then handle in getting into the air dryer, because there is corresponding distance between basin and the air dryer, still remain a large amount of water droplets on the banding plastics after cooling, can drip subaerially this moment, not only wasted the water resource, influence the ground health in workshop, and operating personnel is at the in-process of walking, slippery ground leads to the staff to fall down very easily, thereby bring potential threat to staff's personal safety.

In addition, most of the plastic particles need to be subjected to extrusion molding, wire drawing, cooling and granulation processes in the production process at present, and finally are directly subjected to a packaging process to obtain a plastic particle finished product, the plastic particles which are directly packaged after granulation may have the problem of uneven quality of the plastic particles due to bonding of the particles, which also affects the quality of the product, brings unnecessary troubles to production enterprises, wastes a large amount of products, reduces the production benefits of the enterprises, and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a plastic granulation production line, which ensures the sanitation of the production environment and the personal safety of workers, can perform operations such as screening, air drying and the like on cut plastic particles, improves the quality of finished plastic particle products, has high automation degree and improves the production benefit of enterprises.

In order to realize the purpose, the invention provides the following technical scheme: a plastic granulation production line comprises plastic extruders which are sequentially connected along a material conveying direction and used for heating and melting materials and outputting strip-shaped materials; the water cooling mechanism is used for cooling the extruded strip-shaped materials; the water removal mechanism is used for removing water on the surface of the strip-shaped material passing through the water cooling mechanism; the granulator is used for cutting the strip-shaped materials into plastic granules; the screening mechanism is used for receiving the cut plastic particles and screening the plastic particles with different diameters; the air drying mechanism is used for air drying the plastic particles; the material sucking mechanism is used for sucking and conveying the plastic particles upwards; and the material storage tank is used for storing the processed plastic particles.

Adopt above-mentioned technical scheme, get into in the plastic extruder after mixing the plastic powder, extrude into the extension plastic line through the plastic extruder, then get into the cooling trough and pass through the cooling water cooling, dewatering mechanism can get into drying mechanism and tentatively dry after getting rid of the moisture on the extension plastic line, and then the plastic line gets into screening mechanism and sieves after cutting through the granulator, air-dry mechanism simultaneously and air-dry the operation to plastic granules, utilize to inhale the plastic granules after the material mechanism will air-dry and concentrate to inhale and get to store in the storage tank, the automated production degree of plastic pelletization has been improved, manpower resources have been reduced.

The plastic extruder is characterized in that the water cooling mechanism comprises a cooling water tank, a water removing mechanism and a dryer which are sequentially connected, the cooling water tank is rotatably connected with a plurality of conveying rollers towards one side of the plastic extruder, cooling water is arranged in the cooling water tank, and the water removing mechanism comprises a plurality of mounting plates arranged at the top of the cooling water tank along the length direction of the cooling water tank and bristles arranged on the mounting plates.

Adopt above-mentioned technical scheme, the plastic line gets into the cooling trough and passes through the cooling water cooling, and the brush hair can be got rid of the moisture on the plastic line that elongates, and moisture flows into the cooling trough and collects, reduces and remains a large amount of water droplets on the plastic line and directly drips the ground environment that influences the workshop subaerially, reduces the hidden danger that personnel slided to, will get rid of moisture through the drying-machine and still keep moist plastic line that elongates to dry, and then the plastic line cuts through the granulator.

The invention is further provided with a water cooling mechanism, which also comprises a water supply tank, wherein the water supply tank is provided with a water supply pump and a water inlet pipe communicated with the water supply pump and the cooling water tank; the lateral wall bottom of cooling trough is equipped with the wash port, the wash port is equipped with the rubber buffer, the below of cooling trough is provided with the collecting box, the wash port is equipped with the outlet pipe that is linked together with the collecting box, the intercommunication has the connecting pipe between collecting box and the feed tank, and the connecting pipe sets up downwards from collecting box to feed tank slope.

Adopt above-mentioned technical scheme, when the water in the cooling trough was through the heat transfer of plastic line and the temperature rose, opened the rubber buffer and discharged water to the collecting box through the outlet pipe, the water of collecting box passes through the connecting pipe and gets into the feed tank, discharges water from the inlet pipe into the cooling trough through the working shaft, and then changes the water in the cooling trough, has realized the cyclic utilization of water, conveniently continuously cools off the plastic line effectively.

The screening mechanism comprises a base, a fixing frame and a frame-shaped screen plate, wherein the base, the fixing frame and the frame-shaped screen plate are sequentially arranged from bottom to top and are communicated with the position right below a discharge port of the granulator, a vibration motor is arranged on the base, a spring is arranged at the bottom of the fixing frame along the vertical direction, the lower end of the spring is connected with a supporting foot, one end, far away from the spring, of the supporting foot is connected to the top of the base, one end, far away from the granulator, of the fixing frame is communicated with a discharge pipe, one end, far away from the granulator, of the screen plate is sequentially provided with a material selecting port and a slag discharge pipe, the material selecting port and the discharge pipe penetrate through the upper surface and the lower surface of the screen plate, and the material selecting port is communicated with the discharge pipe.

Adopt above-mentioned technical scheme, on the plastic granule that the cutting is good dropped the sieve, utilize vibrating motor's vibration to make the plastic granule shake screening of piling up on the sieve, and then reduce the condition that plastic granule blockked up the sieve, and qualified plastic granule enters into through the select material mouth and arranges the material pipe for plastic granule's screening efficiency.

The air drying mechanism comprises two positioning plates arranged at the top of the fixing frame at intervals along the conveying direction of plastic particles, a mounting seat connected to the positioning plates in a vertically sliding mode, and a plurality of fans detachably connected to the upper surface of the mounting seat along the material conveying direction, wherein the two positioning plates are arranged in parallel, the wind direction of each fan faces downwards, and a power mechanism used for driving the mounting plates to lift is arranged on each positioning plate.

Adopt above-mentioned technical scheme, when plastic granules sieves the in-process through screening mechanism, the fan can air-dry plastic granules, improves the degree of dryness on plastic granules surface, adjusts the height of fan according to the actual needs under power unit's effect simultaneously.

The fan is further provided with a first fastener arranged on the upper surface of the mounting plate, a second fastener is arranged on the fan, the first fastener comprises an inner mounting plate and inner side edges which are integrally formed on two sides of the inner mounting plate and are arranged in a bent mode, an embedding groove is formed in the inner side edges in a concave mode, the second fastener comprises an outer mounting plate and outer side edges which are integrally formed on two sides of the outer mounting plate and are arranged in a bent mode, the outer side edges and the outer mounting plate are enclosed to form a mounting cavity, elastic clamping plates are riveted on the outer side edges and are located in the mounting cavity, when the first fastener and the second fastener are fastened, the first fastener is placed in the mounting cavity to enable the inner mounting plate to be attached to the outer mounting plate, and the elastic clamping plates are clamped in the embedding groove.

Adopt above-mentioned technical scheme, when needs installation fan, to merging second fastener and first fastener and make the mutual lock of second fastener and first fastener, elasticity joint piece gomphosis is in the caulking groove, realize fixing between second fastener and the first fastener, and then convenient and fast's the installation of fan, this application is through the fixed mode of second fastener and first fastener lock, installation intensity is high, and when the fan takes place to damage and need maintain, also make things convenient for the fan to take off from the mounting panel through this mounting structure.

The elastic clamping sheet is further arranged in a U-shaped mode, one side edge of the elastic clamping sheet is riveted and fixed on the outer side edge, the other side edge of the elastic clamping sheet is bent, and the bending point of the other side edge of the elastic clamping sheet is clamped in the embedding groove.

Adopt above-mentioned technical scheme, through the setting of elasticity joint piece, a little deviation appears in the mounted position of second fastener and first fastener, this application is through above-mentioned elasticity joint piece, and the setting of first fastener structure, even a little deviation appears in the position, only need arrange the second fastener in the installation cavity of first fastener, elasticity joint piece can be compressed by certain range, and then the realization is fixed to the joint of second fastener, the setting of above-mentioned second fastener and first fastener, also can the characteristics of lock each other after having the slight deviation in position, adaptability is high.

The elastic clamping sheet is further provided with a V-shaped bent other side edge, and the shape of the embedded groove is matched with that of the other side edge of the elastic clamping sheet.

Adopt above-mentioned technical scheme, another side edge of elasticity joint piece is the V font and buckles the setting, from this, and the opposite side edge of elasticity joint piece can form the direction inclined plane, makes things convenient for the gomphosis of second fastener to enter into the installation cavity of first fastener, and then realizes fixing between the two.

The invention further provides that the sieve plate is hinged with a cover plate for covering the sorting port, when the cover plate covers the sorting port, the upper surface of the cover plate is flush with the inner plane of the sieve plate, and a limiting component for locking and unlocking the cover plate is arranged between the sieve plate and the cover plate.

By adopting the technical scheme, the arrangement of the cover plate can avoid that plastic particles directly enter the discharge pipe along the material selecting opening in the early debugging of the equipment to influence the debugging work.

The invention is further provided with that the limiting component comprises an elastic locking plate fixedly arranged at the free end of the cover plate and a clamping groove arranged at the material selecting opening, and the elastic locking plate is clamped and matched with the clamping groove; one end of the elastic locking piece protrudes out of the upper surface of the cover plate.

Adopt above-mentioned technical scheme, the cooperation that utilizes elastic locking plate's elastic restoring force and draw-in groove makes the apron can be stable be fixed in the sieve on, reduce rocking of equipment at debugging stage apron, stir elastic locking plate, make elastic locking plate break away from the draw-in groove and can realize the unblock of apron, simple structure is practical.

In conclusion, the invention mainly has the following beneficial effects:

1. mixing plastic powder, feeding the mixture into a plastic extruder, extruding the mixture into elongated plastic wires by the plastic extruder, cooling the elongated plastic wires in a cooling water tank by cooling water, removing water on the elongated plastic wires by a water removing mechanism, then primarily drying the elongated plastic wires in a drying mechanism, cutting the elongated plastic wires by a granulator, then screening the elongated plastic wires in a screening mechanism, air-drying the plastic particles by an air drying mechanism, and intensively sucking the air-dried plastic particles into a storage tank by a material sucking mechanism for storage, so that the automatic production degree of plastic granulation is improved, and human resources are reduced;

2. the plastic line gets into the cooling trough and passes through the cooling water cooling, and the brush hair can be got rid of the moisture on the plastic line that elongates, and moisture flows into the cooling trough and collects, will get rid of moisture through the drying-machine and still keep moist plastic line that elongates to dry, and then the plastic line passes through the granulator and cuts.

3. When needs installation fan, to merging second fastener and first fastener and make the mutual lock of second fastener and first fastener, elasticity joint piece gomphosis is in the caulking groove, realize fixing between second fastener and the first fastener, and then convenient and fast's the installation of fan of having realized, this application is through the fixed mode of second fastener and first fastener lock, and installation strength is high, and when the fan takes place to damage and need maintain, also make things convenient for the fan to take off from the mounting panel through this mounting structure.

Drawings

FIG. 1 is a schematic structural diagram of an overall production line according to an embodiment of the present invention;

FIG. 2 is a schematic view of a connection structure of a water cooling mechanism and a water removing mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic view of the connection structure of the sifting mechanism and the air drying mechanism in the embodiment of the present invention;

FIG. 4 is a schematic view of an assembly relationship between a fan and a mounting plate according to an embodiment of the present invention;

FIG. 5 is a schematic view of an assembly relationship of a screen plate, a fixing frame and a machine base in the embodiment of the invention;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a partial cross-sectional view of a screen panel with a cover panel open in an embodiment of the invention;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a schematic view of the assembly of a first fastener and a second fastener according to an embodiment of the present invention;

FIG. 10 is a schematic view of the first fastener and the second fastener assembled from another perspective according to the embodiment of the present invention.

Reference numerals: 1. a plastic extruder; 2. a water cooling mechanism; 201. a cooling water tank; 2011. a conveying roller; 202. a water supply tank; 203. a water inlet pipe; 204. a water inlet; 205. a collection box; 206. a water outlet pipe; 207. a connecting pipe; 208. a water supply pump; 3. a water removal mechanism; 31. mounting a plate; 32. brushing; 33. a dryer; 4. a granulator; 5. a screening mechanism; 51. a machine base; 52. a fixed mount; 53. a sieve plate; 6. an air drying mechanism; 61. positioning a plate; 62. a mounting seat; 63. a fan; 7. a material sucking mechanism; 71. a blower; 72. a material guiding pipe; 8. a material storage tank; 9. a vibration motor; 10. supporting legs; 11. a spring; 12. a driving cylinder; 13. a handle; 14. a chute; 15. a slider; 16. a first fastener; 161. an outer mounting plate; 162. an outer side edge; 163. a mounting cavity; 164. an elastic clip sheet; 17. a second fastener; 171. an inner mounting plate; 172. an inner side edge; 173. installing edges; 174. caulking grooves; 175. an accommodating groove; 18. a discharge pipe; 19. a holding rod; 20. a sponge cushion; 21. selecting a material port; 22. a slag discharge pipe; 23. positioning holes; 24. a positioning column; 25. a hasp; 26. hooking; 27. a cover plate; 28. an elastic locking plate; 29. a clamping groove.

Detailed Description

The technical scheme of the invention is explained in detail in the following with reference to the attached drawings.

A plastic granulation production line, refer to fig. 1, comprises a plastic extruder 1, a water cooling mechanism 2, a water removing mechanism 3, a granulator 4, a screening mechanism 5, an air drying mechanism 6, a material sucking mechanism 7 and a material storage tank 8 which are connected in sequence along a material conveying direction, and are used for heating and melting materials and outputting strip-shaped materials; the water cooling mechanism 2 is used for cooling the extruded strip-shaped materials; the water removal mechanism 3 is used for removing the water on the surface of the strip-shaped material passing through the water cooling mechanism 2; a granulator 4 for cutting the strip-shaped material into plastic granules; the screening mechanism 5 is used for receiving the cut plastic particles and screening the plastic particles with different diameters; the air drying mechanism 6 is used for air drying the plastic particles; the material sucking mechanism 7 is used for sucking and conveying the plastic particles upwards; and the material storage tank 8 is used for storing the processed plastic particles.

Specifically, referring to fig. 1 and 2, the water cooling mechanism 2 includes a long cooling water tank 201 with an open top, a water removing mechanism 3 sequentially disposed in the cooling water tank 201 along the material conveying direction, and a dryer 33, in this embodiment, the dryer 33 is internally provided with a hot air blower; meanwhile, the cooling water tank 201 is connected with a plurality of conveying rollers 2011 in a horizontal direction in a rotating manner toward one side of the plastic extruder 1, in this embodiment, the number of the conveying rollers 2011 is preferably four, and cooling water is provided in the cooling water tank 201. The water cooling mechanism 2 further includes a water supply tank 202 having a rectangular parallelepiped shape, and a water supply pump 208 and a water inlet pipe 203 communicating with the water supply pump 208 and the cooling water tank 201 are provided on one side of the water supply tank 202.

Moreover, the bottom of the cooling water tank 201 is inclined, and a drain hole (not shown) is formed at the lowest part of the bottom of the cooling water tank 201, so that the cooling water tank 201 can drain water more quickly; a rubber plug (not shown) is arranged at the drain hole. Meanwhile, a collection tank 205 is installed below the cooling water tank 201, a water discharge hole is installed with a water discharge pipe 206 communicating with the collection tank 205, and an inclined connection pipe 207 for automatically flowing water in the collection tank 205 into the water supply tank 202 is installed between the collection tank 205 and the water supply tank 202. When the temperature of the water in the cooling water tank 201 rises through the heat transfer of the plastic wire, the rubber plug is opened to discharge the water to the collection tank 205 through the water outlet pipe 206, the water of the collection tank 205 enters the water supply tank 202 through the connecting pipe 207, the water is discharged into the cooling water tank 201 from the water inlet pipe 203 through the water supply pump, and then the water in the cooling water tank 201 is replaced, so that the water is recycled, and the plastic wire is conveniently and effectively cooled continuously.

Specifically, the water removing mechanism 3 includes a plurality of mounting plates 31 fixedly mounted on the top of the cooling water tank 201 along the length direction of the cooling water tank 201 and bristles 32 arranged on the mounting plates 31, and the mounting plates 31 are arranged in a rectangular plate shape. Get into cooling trough 201 through the cooling water when the plastic line, the brush hair 32 can get rid of the moisture on the plastic line that elongates, and moisture flows into cooling trough 201 and collects, and it is direct to drip the subaerial ground environment that influences the workshop to reduce the last a large amount of water droplets of remaining of plastic line, reduces the hidden danger that the personnel slided to, will get rid of moisture through drying-machine 33 and still keep moist plastic line that elongates to dry, and then the plastic line cuts through granulator 4.

Specifically, referring to fig. 3 and 4, the screening mechanism 5 includes a base 51, a fixed frame 52 and a long frame-shaped screen plate 53, which are communicated with the right lower side of the discharge port of the granulator 4 and are sequentially arranged from bottom to top, two vibration motors 9 are arranged on the base 51, and the two vibration motors 9 are located at two opposite side ends of the base 51. Meanwhile, the bottom of the fixing frame 52 is provided with a plurality of springs 11 along the vertical direction, the lower ends of the springs 11 are fixedly connected with supporting legs 10, and one ends of the supporting legs 10 far away from the springs 11 are fixedly connected to the top of the base 51.

Referring to fig. 5 and 6, one end of the fixing frame 52, which is far away from the pelletizer 4, is communicated with the material discharge pipe 18, the material discharge pipe 18 is arranged in a funnel shape, one end of the sieve plate 53, which is far away from the pelletizer 4, is sequentially provided with a material selection port 21 and a slag discharge pipe 22, which penetrate through the upper surface and the lower surface of the sieve plate 53, and the material selection port 21 is communicated with the material discharge pipe 18. On the sieve 53 that drops of the plastic granule that cuts, utilize vibrating motor 9's vibration to make the plastic granules shake screening of piling up on sieve 53, and then reduce the condition that plastic granules blockked up sieve 53, and qualified plastic granules enters into row material pipe 18 through selecting material mouth 21 for plastic granules's screening efficiency.

Referring to fig. 7 and 8, the screen plate 53 is hinged with a rectangular plate-shaped cover plate 27 for covering the material selection opening 21, and when the cover plate 27 covers the material selection opening 21, the upper surface of the cover plate 27 is flush with the inner plane of the screen plate 53, so that plastic particles which are unqualified in the debugging process can be moved to fall to the slag discharge pipe 22 by the way. In addition, a restraining assembly for locking and unlocking the cover plate 27 is installed between the screen plate 53 and the cover plate 27. The cover plate 27 can prevent plastic particles from directly entering the material discharge pipe 18 along the material selection opening 21 in the early debugging of the equipment to influence the debugging work.

Specifically, the limiting component comprises an elastic locking piece 28 fixedly arranged at the free end of the cover plate 27 and a clamping groove 29 arranged at the material selecting port 21, and the elastic locking piece 28 is clamped and matched with the clamping groove 29; the one end protrusion of elastic locking plate 28 is in the upper surface of apron 27, and the cooperation that utilizes elastic locking plate 28's elastic restoring force and draw-in groove 29 makes apron 27 can be stable be fixed in sieve 53 on, and what reduction equipment lapped 27 in the debugging stage rocks, stirs elastic locking plate 28, makes elastic locking plate 28 break away from draw-in groove 29 can realize the unblock of apron 27, and simple structure is practical.

Referring back to fig. 5 and 6, in the present embodiment, the fixing frame 52 is detachably connected to the screen plate 53, a plurality of hasps 25 are uniformly and fixedly installed on the circumferential side of the fixing frame 52, hooks 26 fastened with the hasps 25 are correspondingly and fixedly installed on the lateral side of the screen plate 53, meanwhile, a plurality of positioning holes 23 are circumferentially arranged on the top of the fixing frame 52, and positioning posts 24 in plug-in fit with the positioning holes 23 are welded on the bottom of the screen plate 53. Through the cooperation of hasp 25 and hasp 26, when needs clean sieve 53, the staff can dismantle sieve 53, has improved clear convenience. In addition, a plurality of holding rods 19 are welded on the top of the screen plate 53 along the length direction of the screen plate, a spongy cushion 20 is wound on the surface of each holding rod 19, and the arrangement of the spongy cushion 20 improves the overall comfort level of workers when the workers hold the holding rods 19.

Specifically, referring back to fig. 3 and 4, the air drying mechanism 6 includes two positioning plates 61 welded on the top of the fixing frame 52 at intervals along the conveying direction of the plastic particles, a mounting seat 62 connected to the positioning plates 61 in a vertically sliding manner, and a plurality of fans 63 detachably connected to the upper surface of the mounting seat 62 along the conveying direction of the material, wherein the positioning plates 61 are arranged in an L shape, and the fans 63 wind downward; in addition, a power mechanism for driving the mounting base 62 to move up and down is mounted on the positioning plate 61. When plastic granules sieve the in-process through screening mechanism 5, fan 63 can air-dry plastic granules, improves the degree of dryness on plastic granules surface, adjusts fan 63's height according to the actual need under power unit's effect simultaneously.

Specifically, the power mechanism includes two driving cylinders 12 arranged along a vertical downward direction, and piston rods of the two driving cylinders 12 are correspondingly and fixedly connected to two side ends of the top of the mounting seat 62. The telescopic driving cylinder 12 piston rod is utilized, the height of the fan 63 can be conveniently and quickly adjusted, air drying of plastic particles of different types is further met, and the structure is simple and practical. In addition, the two opposite side walls of the positioning plate 61 are provided with sliding grooves 14 along the vertical direction, and the two opposite side surfaces of the mounting plate 31 are fixedly provided with sliding blocks 15 which are in sliding fit with the sliding grooves 14.

Referring to fig. 9 and 10, a first fastening member 16 is welded to the upper surface of the mounting base 62 (see fig. 4), and a second fastening member 17 is welded to the fan 63. Specifically, the first fastener 16 includes an inner mounting piece 171, and an inner side 172 which is integrally formed on two sides of the inner mounting piece 171 and is bent, an embedding groove 174 is formed in the inner side 172, the second fastener 17 includes an outer mounting piece 161, and an outer side 162 which is integrally formed on two sides of the outer mounting piece 161 and is bent, the outer side 162 and the outer mounting piece 161 are enclosed to form a mounting cavity 163, an elastic clamping piece 164 is riveted on the outer side 162, the elastic clamping piece 164 is located in the mounting cavity 163, when the first fastener 16 is fastened with the second fastener 17, the first fastener 16 is placed in the mounting cavity 163 to enable the inner mounting piece 171 to be attached to the outer mounting piece 161, and the elastic clamping piece 164 is clamped in the embedding groove 174.

When fan 63 is installed to needs, with second fastener 17 and first fastener 16 to closing and make second fastener 17 and the mutual lock of first fastener 16, elasticity joint piece 164 gomphosis is in caulking groove 174, realize the fixed between second fastener 17 and the first fastener 16, and then convenient and fast's realization fan 63's installation, this application is through the fixed mode of second fastener 17 with the first fastener 16 lock, installation strength is high, and when fan 63 takes place to damage when needing to be maintained, also make things convenient for fan 63 to take off from mount pad 62 through this mounting structure.

In the present embodiment, the elastic latching piece 164 is integrally U-shaped, one side of the elastic latching piece 164 is riveted and fixed on the outer side 162, the other side of the elastic latching piece 164 is bent, and the bending point of the other side of the elastic latching piece 164 is latched in the insertion groove 174. Through the setting of elasticity joint piece 164, if a little deviation appears in second fastener 17 and first fastener 16's mounted position, this application passes through above-mentioned elasticity joint piece 164, and the setting of first fastener 16 structure, even a little deviation appears in the position, only need place second fastener 17 in first fastener 16's installation cavity 163, elasticity joint piece 164 can be compressed by certain range, and then realize fixed to second fastener 17's joint, above-mentioned second fastener 17 and first fastener 16's setting, have the characteristics that also can lock each other after the slight deviation in position, adaptability is high.

In addition, the other side of the elastic latch 164 is bent in a V-shape, and the shape of the insertion groove 174 is matched with the shape of the other side of the elastic latch 164. The other side of the elastic clip piece 164 is bent in a V shape, so that the other side of the elastic clip piece 164 can form a guiding inclined plane, which facilitates the second fastener 17 to be embedded into the mounting cavity 163 of the first fastener 16, thereby realizing the fixation therebetween.

Referring back to fig. 1, in particular, the material suction mechanism 7 includes a material guiding pipe 72 communicated with the material discharging pipe 18 and a blower 71 arranged on one side of the material guiding pipe 72, one end of the material guiding pipe 72 far away from the material discharging pipe 18 is communicated with the material storage tank 8, and the blower 71 is communicated with the material guiding pipe 72, so that the blower 71 pumps the plastic particles entering the material guiding pipe 72 into the material storage tank 8 for centralized storage.

The overall working process is as follows: the staff gets into plastic extruder 1 after mixing the plastic powder in, extrude into the plastic line that elongates through plastic extruder 1, then get into cooling trough 201 and cool through the cooling water, dewatering mechanism 3 can get into drying-machine 33 after getting rid of the moisture on the plastic line that elongates and construct and tentatively dry, and then get into screening mechanism 5 and sieve after the plastic line cuts through granulator 4, air-dry mechanism 6 air-dries the operation to plastic granules simultaneously, utilize to inhale the plastic granules after material mechanism 7 will air-dry and concentrate to inhale and get storage tank 8 and store.

The above embodiments are merely illustrative of the invention, and are not restrictive, and those skilled in the art can make modifications to the embodiments without any inventive contribution as required after reading the present specification, but only protected by the patent laws within the scope of the claims of the invention.

Claims

1. The utility model provides a plastic pelletization production line which characterized by: comprises plastic extruders (1) which are sequentially connected along the material conveying direction and used for heating and melting materials and outputting strip-shaped materials; the water cooling mechanism (2) is used for cooling the extruded strip-shaped materials; the water removal mechanism (3) is used for removing the water on the surface of the strip-shaped material passing through the water cooling mechanism (2); a granulator (4) for cutting the strip-shaped material into plastic granules; the screening mechanism (5) is used for receiving the cut plastic particles and screening the plastic particles with different diameters; the air drying mechanism (6) is used for air drying the plastic particles; the material sucking mechanism (7) is used for sucking and conveying the plastic particles upwards; the material storage tank (8) is used for storing the processed plastic particles; the screening mechanism (5) comprises a base (51), a fixed frame (52) and a frame-shaped screen plate (53), wherein the base (51), the fixed frame (52) and the frame-shaped screen plate (53) are sequentially communicated under a discharge port of the granulator (4) from bottom to top, a vibration motor (9) is arranged on the base (51), a spring (11) is arranged at the bottom of the fixed frame (52) along the vertical direction, the lower end of the spring (11) is connected with a supporting leg (10), one end, far away from the spring (11), of the supporting leg (10) is connected to the top of the base (51), one end, far away from the granulator (4), of the fixed frame (52) is communicated with a discharge pipe (18), one end, far away from the granulator (4), of the screen plate (53) is sequentially provided with a material selecting port (21) and a slag discharge pipe (22) which penetrate through the upper surface and the lower surface of the screen plate (53), and the material selecting port (21) is communicated with the discharge pipe (18); the air drying mechanism (6) comprises two positioning plates (61) arranged at the top of the fixing frame (52) at intervals along the conveying direction of plastic particles, a mounting seat (62) connected to the positioning plates (61) in a vertically sliding mode, and a plurality of fans (63) detachably connected to the upper surface of the mounting seat (62) along the conveying direction of materials, wherein the two positioning plates (61) are arranged in parallel, the wind direction of each fan (63) faces downwards, and a power mechanism used for driving the mounting plate (31) to lift is arranged on each positioning plate (61); the upper surface of the mounting plate (31) is provided with a first fastener (16), the fan (63) is provided with a second fastener (17), the first fastener (16) comprises an inner mounting plate (171) and inner side edges (172) which are integrally formed on two sides of the inner mounting plate (171) and are arranged in a bent manner, an embedding groove (174) is formed in each inner side edge (172), the second fastener (17) comprises an outer mounting plate (161) and outer side edges (162) which are integrally formed on two sides of the outer mounting plate (161) and are arranged in a bent manner, the outer side edges (162) and the outer mounting plate (161) are enclosed to form a mounting cavity (163), the outer side edges (162) are riveted with elastic clamping plates (164), the elastic clamping plates (164) are located in the mounting cavity (163), when the first fastener (16) is fastened with the second fastener (17), the first fastener (16) is arranged in the mounting cavity (163) so that the inner mounting plate (171) is attached to the outer mounting plate (161), the elastic clamping sheet (164) is clamped in the embedded groove (174).

2. The plastic pelletizing production line of claim 1, characterized in that: water-cooling mechanism (2) include cooling trough (201), set gradually in the dewatering mechanism (3) and drying-machine (33) of cooling trough (201) along material direction of delivery, cooling trough (201) are rotated along the horizontal direction towards plastics extruder (1) one side and are connected with a plurality of transfer roller (2011), be provided with the cooling water in cooling trough (201), dewatering mechanism (3) include locate a plurality of mounting panel (31) at cooling trough (201) top and locate brush hair (32) on mounting panel (31) along cooling trough (201) length direction.

3. A plastic pelletizing line as set forth in claim 2, characterized in that: the water cooling mechanism (2) further comprises a water supply tank (202), wherein the water supply tank (202) is provided with a water supply pump (208) and a water inlet pipe (203) communicated with the water supply pump (208) and the cooling water tank (201); the lateral wall bottom of cooling trough (201) is equipped with the wash port, the wash port is equipped with the rubber buffer, the below of cooling trough (201) is provided with collecting box (205), the wash port is equipped with outlet pipe (206) that are linked together with collecting box (205), the intercommunication has connecting pipe (207) between collecting box (205) and feed water tank (202), and connecting pipe (207) from collecting box (205) to feed water tank (202) slope downward setting.

4. The plastic pelletizing production line of claim 1, characterized in that: the elastic clamping sheet (164) is integrally arranged in a U shape, one side edge of the elastic clamping sheet (164) is riveted and fixed on the outer side edge (162), the other side edge of the elastic clamping sheet (164) is bent, and the bending point of the other side edge of the elastic clamping sheet (164) is clamped in the embedded groove (174).

5. The plastic pelletizing production line of claim 4, characterized in that: the other side edge of the elastic clamping piece (164) is bent in a V shape, and the shape of the embedding groove (174) is matched with the shape of the other side edge of the elastic clamping piece (164).

6. The plastic pelletizing production line of claim 5, characterized in that: sieve (53) articulate apron (27) that are used for the lid to close selection mouth (21), when apron (27) lid fits selection mouth (21), the upper surface of apron (27) and the interior flush plane of sieve (53), be equipped with between sieve (53) and the apron (27) and be used for the closure and unblock the restriction subassembly of apron (27).

7. The plastic pelletizing production line of claim 6, characterized in that: the limiting assembly comprises an elastic locking plate (28) fixedly arranged at the free end of the cover plate (27) and a clamping groove (29) arranged at the material selecting port (21), and the elastic locking plate (28) is clamped and matched with the clamping groove (29); one end of the elastic locking piece (28) protrudes out of the upper surface of the cover plate (27).