CN211968075U - Efficient vibrating screen device applied to double-screw extruder - Google Patents

Abstract

The utility model relates to a be applied to high-efficient sieving mechanism of twin-screw extruder, belong to the technical field that plastic granules generated, the device includes the frame, the sieve bed, sieve plate and vibrating motor, the sieve bed sets up in the frame, sieve plate is connected with two inside walls of sieve bed, be equipped with first sieve mesh hole on the sieve plate, vibrating motor sets up on the diapire of frame, extend upward in the frame and be equipped with a supporting bench, be equipped with the support frame on the supporting bench, be connected with the U-shaped frame on the support frame, the opening direction of U-shaped frame is down, the U-shaped frame internal slipping is connected with the slide bar, the one end that the slide bar stretches out the U-shaped frame is connected with the fixed plate, be equipped with the mediation piece on the lower surface of fixed; when the workman need dredge the downthehole plastic granules who blocks up of the first screen cloth in rear in the screen cloth board, dredge a reciprocating motion from top to bottom through the drive assembly drive to the realization is dredged first screen cloth hole, and then improves screening efficiency.

Description

Efficient vibrating screen device applied to double-screw extruder

Technical Field

The utility model belongs to the technical field of the technique of plastic granules production and specifically relates to a be applied to double screw extruder's high efficiency and shake sieve device is related to.

Background

Extrusion lines for plastics generally comprise: extruder feeding, the extruder is extruded, cold water tank cooling wire drawing, the pelleter is cut grain, the finished product collecting vat is collected, when the pelleter is cut columnar plastic granules, plastic granules's length mainly is decided by the rotational speed and the wire drawing cooling condition of cutting the grain sword, but often cold water tank normal water temperature can fluctuate along with going on of production, consequently, the refrigerated situation of wire drawing is unstable, and then will influence plastic granules's uniformity, prior art is generally by the sieve screening for the export of operator at the pelleter, reject the oversize plastic granules, such screening process is extremely inconvenient, the screening efficiency is low, the product quality can't be guaranteed, and the production benefit is influenced.

At present, in a chinese utility model patent with an authorization publication number of CN203484339U, a vibration screening device for a plastic granulator is disclosed, which comprises a granulator and a vibration screening device, wherein the vibration screening device is located at the outlet end of the granulator and comprises a finished product collecting tank, a screen plate frame, a vibration motor fixed on the screen plate frame and a defective product collecting tank, the finished product collecting tank is located under the screen plate frame, a spring damping device is arranged between the screen plate frame and the finished product collecting tank, and the bottom of the finished product collecting tank and the screen plate frame adopt an inclined design, so that finished products are conveniently packaged and encapsulated; the device can screen out qualified plastic granules, reduces the labor cost and has good economic benefit.

The above prior art solutions have the following drawbacks: when plastic granules dropped to the screen board head end from the discharge end of pelleter, shock dynamo vibrations screen board made plastic granules to screen board end movement, because most of shock dynamo among the prior art are close to the feed end setting of screen board, lead to the part to be close to the critical plastic granules card of separation point and can't sieve smoothly in the mesh at rear in the screen board, cause the jam, reduce the screening efficiency to plastic granules.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a be applied to double screw extruder's high-efficient sieving mechanism that shakes, the advantage is the screening efficiency who guarantees the sieve plate, has solved the easy problem of blockking up plastic granules in sieve plate rear.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a be applied to high-efficient sieve device that shakes of twin-screw extruder, includes frame, sieve bed, sieve plate and vibrating motor, the sieve bed sets up in the frame, sieve plate is connected with two inside walls of sieve bed, be equipped with first sieve mesh hole on the sieve plate, vibrating motor sets up on the diapire of frame, upwards extend in the frame and be equipped with a supporting bench, be equipped with the support frame on the supporting bench, be connected with the U-shaped frame on the support frame, the opening direction of U-shaped frame is down, the cunning is connected with the slide bar in the U-shaped frame, the one end that the U-shaped frame was stretched out to the slide bar is connected with the fixed plate, be equipped with the piece of dredging that is arranged in the plastic granules that the rear blockked up in the sieve plate on the lower surface of fixed plate.

Through adopting above-mentioned technical scheme, when the workman need dredge to the plastic granules that the rear blockked up in the screen cloth board, utilize drive assembly drive slide bar to slide from top to bottom, the slide bar drives the fixed plate up-and-down motion, and the fixed plate drives mediation piece up-and-down motion, makes the plastic granules that mediation piece blockked up the rear in to the screen cloth board dredge to the efficiency of plastic granules screening is improved.

The utility model discloses further set up to: the drive assembly includes driving motor, rotor arm, driven arm and drive pole, the support frame includes montant and horizontal pole, driving motor sets up on the horizontal pole, driving motor's motor shaft passes the horizontal pole and is connected with the one end of rotor arm, be equipped with waist shape hole on the driven arm, the one end that the motor shaft was kept away from to the rotor arm slides and connects downtheholely at waist shape, the one end of driven arm is articulated mutually with the pole wall of montant, the other end of driven arm is articulated mutually with the drive rod, the one end that the driven arm was kept away from to the drive rod is articulated mutually with the slide bar.

By adopting the technical scheme, when workers need to dredge plastic particles blocked at the middle and rear parts of the screen plate, the driving motor is utilized to sequentially drive the rotating arm and the driven arm to rotate, the driven arm drives the driving rod to swing, so that the sliding rod slides up and down in the U-shaped frame in a reciprocating manner, and the sliding rod drives the fixing plate to move up and down in a reciprocating manner; through the common cooperation of driving motor, rotor arm, driven arm and drive pole, guarantee that the slide bar drives the fixed plate up-and-down reciprocating motion steadily to guarantee to dredge the piece and dredge the first screen mesh hole of screen plate middle and rear steadily, the stability of whole mediation process is good.

The utility model discloses further set up to: the mediation piece is the mediation pole, the diapire of mediation pole is connected with the push pedal, the length of push pedal is close with the aperture of first sieve mesh hole.

Through adopting above-mentioned technical scheme, because the plastic granules card is inconsistent at the first position that shines the mesh, when mediation pole downstream, utilize the push pedal, guarantee to push down the plastic granules at first mesh downthehole with the jam to make the difficult jam of first mesh hole at rear in the screen cloth board, and then promote screening efficiency.

The utility model discloses further set up to: the lateral wall that the mediation pole is close to the push pedal is equipped with oblique decurrent elastic rod, the upper surface of elastic rod is the arcwall face of upwards arching, the diapire of elastic rod is laminated with the upper surface of screen cloth board mutually.

Through adopting above-mentioned technical scheme, when the mediation pole downstream, the elastic rod downstream strikes the sieve otter board, because the upper surface of elastic rod upwards arches, guarantees the impact of elastic rod to the sieve otter board, and the vibrations that reinforcing sieve otter board received make the difficult plastic granules that blocks up of first sieve mesh hole at rear in the sieve otter board to further promote screen cloth efficiency.

The utility model discloses further set up to: the bottom wall of the push plate is provided with a damping rubber pad.

Through adopting above-mentioned technical scheme, when the push pedal striking plastic granules, through shock-absorbing rubber pad, can reduce the vibrations that the push pedal received, play shock attenuation protection's effect, the life of extension push pedal to the push pedal.

The utility model discloses further set up to: the side wall of one end of the sliding rod, which extends out of the U-shaped frame, is provided with two fixing blocks, the top wall of each fixing block is provided with a through hole, and a bolt penetrates through the through hole to be in threaded connection with the fixing plate.

Through adopting above-mentioned technical scheme, when the workman need install the fixed plate on the slide bar, pass the perforation with the bolt and with fixed plate threaded connection, make things convenient for workman's installation and dismantlement fixed plate.

The utility model discloses further set up to: the sieve bed is characterized in that an auxiliary sieve plate is connected to the inner side wall of the sieve bed and arranged above the auxiliary sieve plate, and second sieve holes with the same size as the first sieve holes are formed in the auxiliary sieve plate.

Through adopting above-mentioned technical scheme, when utilizing the push pedal to push down the plastic granules in the first screen hole, probably make some plastic granules that are in qualified standard critical value sneak into in the qualified plastic granules after the screening, set up supplementary screen board, be favorable to carrying out further screening to the plastic granules that falls down from screen board well rear to further promote the screening efficiency of the device.

The utility model discloses further set up to: the frame includes four stands that two liang of opposite settings, connects the connecting rod between two stands and connects the crossbeam on the stand roof, be connected with damping spring on the roof at crossbeam both ends, damping spring's roof is connected with the diapire of sieve bed.

Through adopting above-mentioned technical scheme, when the sieve bed carries out vibration screening to plastic granules, through damping spring, be favorable to reducing the vibrations that the frame received, noise reduction.

The utility model discloses further set up to: the supporting platform comprises two I-shaped supporting rods and a horizontal plate connected to the top wall of each supporting rod, each supporting rod comprises a first straight rod, a second straight rod and a vertical rod connected between the first straight rod and the second straight rod, the top wall of the first straight rod is connected with the bottom wall of the horizontal plate, and the bottom wall of the second straight rod is connected with the top wall of the cross beam.

By adopting the technical scheme, the I-shaped supporting rod is utilized to support the horizontal plate, and meanwhile, the lightness of the supporting platform is ensured; fix the brace table on the roof of crossbeam, be favorable to reducing the vibrations that the brace table received to guarantee the stability of slide bar up-and-down motion in-process.

To sum up, the utility model discloses a beneficial technological effect does:

1. the screening efficiency is high: the driving motor is utilized to sequentially drive the rotating arm and the driven arm to rotate, the driven arm drives the driving rod to swing, the driving rod drives the sliding rod to do up-and-down reciprocating motion, so that the sliding rod drives the fixing plate to do up-and-down reciprocating motion, the fixing plate drives the push plate to do up-and-down reciprocating motion, and the push plate is enabled to dredge plastic particles blocked at the middle and rear parts of the screen plate, so that the screening efficiency of the plastic particles is improved; the elastic rod is utilized to enhance the vibration of the screen plate, thereby further improving the screening efficiency;

2. the stability is good: the bottom wall of the push plate is provided with the shock-absorbing rubber pad, so that when the push plate impacts the blocked plastic particles downwards, the shock on the push plate is reduced, and the push plate is protected by shock absorption; install the brace table on the crossbeam, be favorable to reducing the vibrations that the fixed plate received to guarantee the stability of slide bar up-and-down motion in-process, and then promote device's stability.

Drawings

Fig. 1 is a schematic structural diagram of the present embodiment.

Fig. 2 is a schematic structural view of a drive assembly and an auxiliary screen plate for embodying the present embodiment.

Fig. 3 is a schematic structural view for showing the connection relationship between the pull-through member and the elastic member in the embodiment.

Fig. 4 is a schematic structural diagram for showing the connection relationship between the slide rod and the fixed plate in the present embodiment.

In the figure, 1, a frame; 10. a column; 11. a connecting rod; 12. a cross beam; 2. a sieve bed; 3. a screen plate; 31. a first screen mesh; 4. a vibration motor; 5. a support table; 51. a strut; 511. a first straight bar; 512. a second straight bar; 513. a vertical rod; 52. a horizontal plate; 6. a support frame; 61. a vertical rod; 62. a cross bar; 7. a U-shaped frame; 8. a slide bar; 9. a fixing plate; 13. a dredging member; 14. a drive assembly; 141. a drive motor; 142. a rotating arm; 143. a driven arm; 144. driving the rod; 15. a waist-shaped hole; 16. dredging the rod; 17. pushing the plate; 18. a fixed block; 19. perforating; 20. a bolt; 21. an elastic rod; 22. a shock-absorbing rubber pad; 23. an auxiliary screen plate; 24. a second screen mesh; 25. a damping spring; 26. a thread groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a be applied to high-efficient sieving mechanism of twin-screw extruder, the problem of the rear easily blockked up plastic granules in sieve plate 3 has been solved, the device includes frame 1, sieve bed 2, sieve plate 3 and vibrating motor 4, sieve bed 2 sets up in frame 1, sieve plate 3 is connected with two inside walls of sieve bed 2, sieve plate 3 is equipped with first sieve mesh hole 31, vibrating motor 4 sets up on the diapire of frame 1, frame 1 includes four stands 10 that two liang of relative settings, connect connecting rod 11 between two stands 10 and connect crossbeam 12 on stand 10 roof, be connected with damping spring 25 on the roof at crossbeam 12 both ends, damping spring 25's roof is connected with sieve bed 2's bottom wall; a support table 5 extends from the rack 1, the support table 5 comprises two I-shaped supporting rods 51 and a horizontal plate 52, each supporting rod 51 comprises a first horizontal rod 511, a second horizontal rod 512 and a vertical rod 513 connected between the first horizontal rod 511 and the second horizontal rod 512, the first horizontal rod 511 is connected with the horizontal plate 52, the second horizontal rod 512 is connected to the top wall of the cross beam 12, a support frame 6 is arranged on the horizontal plate 52, a U-shaped frame 7 is connected to the support frame 6, the opening direction of the U-shaped frame 7 is downward, a sliding rod 8 is connected to the U-shaped frame 7 in a sliding manner, one end, extending out of the U-shaped frame 7, of the sliding rod 8 is connected with a fixing plate 9, a dredging piece 13 for dredging plastic particles blocked at the rear part of the screen plate 3 is arranged on the lower surface of the fixing plate 9, and.

Referring to fig. 1, when a worker needs to dredge a first sieve mesh 31 blocked at the middle rear part of a sieve plate 3, the driving assembly 14 is used for controlling the slide rod 8 to slide up and down, the slide rod 8 drives the fixing plate 9 to reciprocate up and down, so that the dredging piece 13 conducts up and down dredging on the first sieve mesh 31, plastic particles blocked in the first sieve mesh 31 are dredged to the lower part of the sieve plate 3, and the screening efficiency of the plastic particles is ensured; in the process of vibrating the sieve, the vibration of the sieve bed 2 is buffered by using the damping spring 25, so that the stability of the vibrating sieve device is ensured; the I-shaped supporting rod 51 plays a supporting role for the supporting frame 6, and the I-shaped supporting platform 5 has a simple structure and small specific gravity, so that the lightness of the vibrating screen device is ensured.

Referring to fig. 2, the driving assembly 14 includes a driving motor 141, a rotating arm 142, a driven arm 143 and a driving rod 144, the supporting frame 6 includes a vertical rod 61 and a horizontal rod 62, the vertical rod 61 is connected to the upper surface of the horizontal plate 52, the driving motor 141 is disposed on the horizontal rod 62, a motor shaft of the driving motor 141 passes through the horizontal rod 62 and is connected to one end of the rotating arm 142, the driven arm 143 is provided with a kidney-shaped hole 15, one end of the rotating arm 142, which is far away from the motor shaft, is slidably connected in the kidney-shaped hole 15, one end of the driven arm 143 is hinged to a rod wall of the vertical rod 61, the other end of the driven arm 143 is hinged to the driving rod 144, and one end of the; when workers need to dredge plastic particles blocked in the first screen holes 31, the driving motor 141 is used for controlling the rotating arm 142 to rotate, the rotating arm 142 drives the driven arm 143 to rotate, the driven arm 143 drives the driving rod 144 to reciprocate, so that the driving rod 144 drives the sliding rod 8 to reciprocate up and down, the sliding rod 8 drives the fixing plate 9 to reciprocate up and down, and the fixing plate 9 drives the dredging piece 13 to reciprocate up and down, so that the screen plate 3 is dredged.

Referring to fig. 2, an auxiliary screen plate 23 is connected to the inner side wall of the screen bed 2, the screen plate 3 is arranged above the auxiliary screen plate 23, the auxiliary screen plate 23 is connected to the inner side wall of the middle rear part of the screen bed 3, and a second screen hole 24 with the same size as the first screen hole 31 is arranged on the auxiliary screen plate 23; when the dredging piece 13 pushes the blocked plastic particles downwards, some plastic particles in qualified standard critical values are mixed into the qualified plastic particles, and the auxiliary screen plate 23 is utilized to perform secondary screening on the plastic particles falling from the middle and the rear part of the screen plate 3, so that the screening efficiency of the vibrating screen device is further improved.

Referring to fig. 3, the dredging member 13 is a dredging rod 16, the bottom wall of the dredging rod 16 is connected with a push plate 17, the longitudinal section of the push plate 17 is rectangular, the length of the push plate 17 is close to the aperture of the first screen hole 31, a downward inclined elastic rod 21 is arranged on the side wall of the dredging rod 16 close to the push plate 17, the upper surface of the elastic rod 21 is an arc-shaped surface which is arched upwards, the bottom wall of the elastic rod 21 is attached to the upper surface of the screen plate 3, and a damping rubber pad 22 is arranged on the bottom wall of the push plate 17; utilize shock-absorbing rubber pad 22, the vibrations that receive when slowing down push pedal 17 striking plastic granules to play the effect of protection to push pedal 17, prolong push pedal 17's life.

Referring to fig. 4, two fixing blocks 18 are connected to a side wall of one end of the sliding rod 8 extending out of the U-shaped frame 7 (fig. 1), through holes 19 are formed in top walls of the two fixing blocks 18, and threaded grooves 26 are formed in an upper surface of the fixing plate 9, so that when a worker installs the fixing plate 9 and the sliding rod 8 together, bolts 20 penetrate through the through holes 19 and are in threaded connection with the threaded grooves 26, thereby facilitating the process of installing the fixing plate 9 by the worker.

The implementation principle of the embodiment is as follows: when plastic particles are blocked at the middle rear part of the screen plate 3, the driving motor 141 is utilized to sequentially drive the rotating arm 142 and the driven arm 143 to rotate, the driven arm 143 drives the sliding rod 8 to do up-and-down reciprocating motion, the sliding rod 8 drives the fixing plate 9 to do up-and-down reciprocating motion, so that the dredging rod 16 does up-and-down reciprocating motion, the plastic particles blocked in the first screen holes 31 are dredged, meanwhile, the elastic rod 21 impacts the screen plate 3, vibration borne by the screen plate 3 is enhanced, and the plastic particles are not easy to block at the middle rear part of the screen plate 3; when the push plate 17 pushes some plastic particles which are in the critical value of the qualified standard to the lower part of the first screen plate 3, the auxiliary screen plate 23 is utilized to carry out secondary screening on the plastic particles, so that the screening efficiency of the vibrating screen device is ensured.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a be applied to twin-screw extruder's high efficiency sieve device that shakes, includes frame (1), sieve bed (2), sieve net board (3) and vibrating motor (4), sieve bed (2) set up in frame (1), sieve net board (3) are connected with two inside walls of sieve bed (2), be equipped with first sieve mesh hole (31) on sieve net board (3), vibrating motor (4) set up on the diapire of frame (1), its characterized in that: upwards extend on frame (1) and be equipped with brace table (5), be equipped with support frame (6) on brace table (5), be connected with U-shaped frame (7) on support frame (6), the opening direction of U-shaped frame (7) is down, U-shaped frame (7) internal slipping is connected with slide bar (8), the one end that U-shaped frame (7) are stretched out in slide bar (8) is connected with fixed plate (9), be equipped with on the lower surface of fixed plate (9) and be used for dredging mediation sieve otter board (3) middle and back blocked up plastic granules dredge spare (13), be equipped with on support frame (6) and be used for driving drive assembly (14) that slide bar (8) slided from top to bottom.

2. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 1, wherein: drive assembly (14) include driving motor (141), rotor arm (142), driven arm (143) and driving rod (144), support frame (6) are including montant (61) and horizontal pole (62), driving motor (141) set up on horizontal pole (62), the motor shaft of driving motor (141) passes horizontal pole (62) and is connected with the one end of rotor arm (142), be equipped with waist shape hole (15) on driven arm (143), the one end that the motor shaft was kept away from in rotor arm (142) slides and connects in waist shape hole (15), the one end of driven arm (143) is articulated mutually with the pole wall of montant (61), the other end of driven arm (143) is articulated mutually with driving rod (144), the one end that driven arm (143) were kept away from in driving rod (144) is articulated mutually with slide bar (8).

3. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 1, wherein: dredge piece (13) for dredging rod (16), the diapire of dredging rod (16) is connected with push pedal (17), the length of push pedal (17) is close with the aperture of first sieve mesh hole (31).

4. The high-efficiency vibrating screen device applied to the double-screw extruder is characterized in that: the side wall of the dredging rod (16) close to the push plate (17) is provided with an elastic rod (21) which inclines downwards, the upper surface of the elastic rod (21) is an arc-shaped surface which is arched upwards, and the bottom wall of the elastic rod (21) is attached to the upper surface of the screen plate (3).

5. The high-efficiency vibrating screen device applied to the double-screw extruder is characterized in that: the bottom wall of the push plate (17) is provided with a shock-absorbing rubber pad (22).

6. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 2, wherein: two fixing blocks (18) are arranged on the side wall of one end, extending out of the U-shaped frame (7), of the sliding rod (8), a through hole (19) is formed in the top wall of each fixing block (18), and a bolt (20) penetrates through the through hole (19) to be in threaded connection with the fixing plate (9).

7. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 1, wherein: be connected with supplementary sieve otter board (23) on the inside wall of sieve bed (2), sieve otter board (3) set up the top at supplementary sieve otter board (23), be equipped with on supplementary sieve otter board (23) with first sieve mesh hole (31) equal second sieve mesh hole (24) of size.

8. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 7, wherein: frame (1) is connected connecting rod (11) and crossbeam (12) of connecting on stand (10) roof including four stands (10) that two liang of opposite settings set up between two stands (10), be connected with damping spring (25) on the roof at crossbeam (12) both ends, the roof of damping spring (25) is connected with the diapire of sieve bed (2).

9. The high-efficiency vibrating screen device applied to the double-screw extruder as claimed in claim 8, wherein: the supporting table (5) comprises two I-shaped supporting rods (51) and a horizontal plate (52) connected to the top wall of the supporting rods (51), each supporting rod (51) comprises a first straight rod (511), a second straight rod (512) and a vertical rod (513) connected between the first straight rod (511) and the second straight rod (512), the top wall of the first straight rod (511) is connected with the bottom wall of the horizontal plate (52), and the bottom wall of the second straight rod (512) is connected with the top wall of the cross beam (12).

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