CN213260518U - Screening device for screening plastic particles - Google Patents

Abstract

The utility model relates to a sieving mechanism for screening plastic granules uses at the technical field of master batch sieve separator, and it includes the base, sets up the box on the base and is located the screen cloth of box, through spring coupling between box and the base, the screen cloth includes two-layer the same first sieve and second sieve, first sieve is fixed on the box, the second sieve slides and connects on the box, be equipped with the slide rail on the box, the both sides of second sieve are fixed with the slider of connection in the slide rail that slides, the slide rail internal rotation is connected with the lead screw, slider threaded connection is on the lead screw, the box outside is equipped with and is used for driving lead screw pivoted drive assembly. The utility model discloses the size that has mesh on through the screen cloth can be adjusted to be convenient for filter the master batch of equidimension not, improve the effect of the ability of using.

Description

Screening device for screening plastic particles

Technical Field

The utility model relates to a technical field of sieving mechanism, more specifically say, it relates to a sieving mechanism for screening plastic granules.

Background

The thermoplastic elastomer of polyolefin alloy, TPV for short, is mainly composed of two parts, one is plastic as continuous phase, the other is rubber as disperse phase, the rubber is usually required to be matched with softening oil or plasticizer, vulcanizing agent and some auxiliary agent are also necessary, and at the same time, some inorganic filler can be added.

At present, chinese patent with publication number CN207310316U discloses a twin-screw extrusion water-spraying water-ring granulator, which comprises a motor, an extruder set electrically connected with the motor, a water-ring hot-cutting system connected with the extruder set, a centrifugal dehydrator connected with the water-ring hot-cutting system, a vibrating screen machine connected with the centrifugal dehydrator, and a storage bin connected with the vibrating screen machine, wherein the vibrating screen machine is connected with the storage bin through a conveying fan.

This kind of twin-screw extrusion water spray water ring pelleter, the material is extruded the back from the extruder, cuts grain through the water ring, in dehydration and screening entering storage silo again, the inside reel that sets up of sieve separator screens the incomplete brace granule of undersize, guarantees the holistic quality of brace granule. However, the brace particles do not have a uniform specification, so that the size of the brace particles can be adjusted for different manufacturers, and therefore, when the brace particles with different specifications are screened, the screening machine needs to be replaced, or the specification of a screen in the screening machine needs to be replaced, so that the production requirements are met, and the screening machine is not universal.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a sieving mechanism for screening plastic granules, its advantage is, the size of the mesh on the screen cloth can be adjusted to be convenient for filter the not master batch of equidimension, improve the ability of using.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a sieving mechanism for screening plastic granules, includes the base, sets up the box on the base and is located the screen cloth of box, pass through spring coupling between box and the base, the screen cloth includes two-layer the same first sieve and second sieve, first sieve is fixed on the box, the second sieve slides and connects on the box, be equipped with the slide rail on the box, the both sides of second sieve are fixed with the slider of sliding connection in the slide rail, the slide rail internal rotation is connected with the lead screw, slider threaded connection is on the lead screw, the box outside is equipped with and is used for driving lead screw pivoted drive assembly.

Further setting: the outer side wall of the box body is fixedly provided with a connecting plate, the screw rod extends out of the box body, the driving assembly comprises a connecting rod and a driving rod, the connecting rod is arranged in the direction perpendicular to the screw rod, the driving rod is vertically and rotatably connected onto the connecting plate, first bevel gears which are meshed with each other are fixed on the driving rod and the connecting rod, second bevel gears which are meshed with each other are arranged between the connecting rod and the screw rod, when the driving rod is rotated, the connecting rod is driven to rotate, and the connecting rod drives the screw rod.

Further setting: the outer side wall of the box body is fixedly provided with a connecting plate, the screw rod extends out of the box body, the driving assembly comprises two connecting rods arranged in the direction perpendicular to the screw rod and a driving rod vertically connected to the connecting plate in a rotating mode, first bevel gears meshed with each other are fixed on the driving rod and the two connecting rods, second bevel gears meshed with each other are arranged between the connecting rods and the screw rod, when the driving rod is rotated, the two connecting rods are driven to rotate, and the connecting rods drive the screw rod to rotate.

Further setting: and a cover shell used for covering the driving assembly is fixed outside the box body, and the driving rod extends out of the cover shell.

Further setting: the top surface of the box body is provided with positioning holes as large as meshes on the first sieve plate, the slide rail is provided with strip-shaped holes, the slide block is fixedly provided with a supporting rod penetrating through the strip-shaped holes, the top end of the supporting rod is provided with a display plate, the display plate is provided with through holes as large as the positioning holes, and when the first sieve plate and the second sieve plate are superposed, the through holes and the positioning holes are superposed.

Further setting: the slide rail and the first sieve plate are fixedly connected and the slide rail is fixed on the box body through a bolt.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. when master batches with different sizes are encountered, the screw rod is rotated through the driving assembly, so that the second sieve plate and the first sieve plate are further relatively moved, the holes on the first sieve plate and the second sieve plate are completely overlapped at the beginning, the holes on the sieve screen are the largest at the moment, and the holes on the sieve screen are the smallest at the moment when the second sieve plate and the first sieve plate are staggered relatively, so that the effect of adjusting the sizes of the meshes on the sieve screen is achieved;

2. the driving assembly is positioned outside the box body, and the second sieve plate is positioned inside the box body, so that the position of the second sieve plate can be conveniently adjusted outside the box body;

3. the coincidence degree of locating hole and through-hole is synchronous with the coincidence degree of first sieve and second sieve for people can know the coincidence degree of the inside first sieve of box and second sieve outside, the relative position of the first sieve of further being convenient for adjust and second sieve.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is a schematic structural diagram of a drive assembly embodying the present embodiment;

FIG. 3 is a schematic structural view of the inside of the case of the present embodiment;

FIG. 4 is a cross-sectional structural view of the case of the present embodiment;

FIG. 5 is a schematic structural diagram of a display panel embodying the present embodiment;

fig. 6 is a schematic view of another structure of the driving assembly of the present embodiment.

In the figure: 11. a base; 12. a box body; 13. a spring; 14. a feed pipe; 2. screening a screen; 21. a first screen deck; 22. a second screen deck; 23. a slide rail; 24. a slider; 25. a screw rod; 3. a drive assembly; 31. a connecting rod; 32. a drive rod; 33. a first bevel gear; 34. a second bevel gear; 35. a connecting plate; 36. rotating the sleeve; 37. a housing; 4. positioning holes; 5. a display panel; 51. a support bar; 52. and a through hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1: referring to fig. 1-4, a screening apparatus for screening plastic particles comprises a base 11, a box 12 disposed on the base 11, and a screen 2 disposed in the box 12, wherein the box 12 is connected to the base 11 via a spring 13, a feeding pipe 14 is disposed on the box 12, and materials enter the box 12 through the feeding pipe 14. The screen 2 includes two-layer the same first sieve 21 and second sieve 22, first sieve 21 is fixed on box 12, second sieve 22 slides and connects on box 12, be equipped with slide rail 23 on the box 12, slide rail 23 and first sieve 21 fixed connection pass through the bolt fastening simultaneously on box 12, the both sides of second sieve 22 all are fixed with the slider 24 of sliding connection in slide rail 23, the slide rail 23 internal rotation is connected with lead screw 25, slider 24 threaded connection is on lead screw 25, lead screw 25 rotates to be connected on box 12, box 12 outside is equipped with and is used for driving lead screw 25 pivoted drive assembly 3.

The implementation principle of the above embodiment is as follows: when master batches with different sizes are encountered, the screw rod 25 is rotated through the driving assembly 3, and after the screw rod 25 rotates, the sliding block 24 slides on the screw rod 25, so that the second sieve plate 22 and the first sieve plate 21 move relatively; the hole on first sieve 21 and the second sieve 22 completely coincides at the beginning, and the hole of screen cloth 2 reaches the biggest this moment, and when second sieve 22 staggers with first sieve 21 relatively, the hole of screen cloth 2 was minimum this moment to play the effect of mesh size on the regulation screen cloth 2, according to the actual size of master batch, adjust the size of sieve mesh.

Embodiment 2, referring to fig. 2-4, a connecting plate 35 is fixed on the outer side wall of the box 12, the screw 25 extends out of the box 12, the driving assembly 3 includes a connecting rod 31 arranged in the direction perpendicular to the screw 25, a driving rod 32 vertically and rotatably connected to the connecting plate 35, a first bevel gear 33 engaged with each other is fixed on the driving rod 32 and the connecting rod 31, a second bevel gear 34 engaged with each other is arranged between the connecting rod 31 and the screw 25, a rotating sleeve 36 is fixed on the outer side wall of the box 12, and the connecting rod 31 is rotatably connected in the rotating sleeve 36. When the driving rod 32 is rotated, the connecting rod 31 is driven to rotate, the connecting rod 31 drives the screw rod 25 to rotate, so that the screw rod 25 is directly driven to rotate outside, and meanwhile, the two screw rods 25 are driven to synchronously rotate by rotating the driving rod 32 and the connecting rod 31, so that the second sieve plate 22 is prevented from being clamped in the sliding rail 23.

Referring to fig. 1-2, a cover 37 for covering the driving assembly 3 is fixed outside the box 12, and the driving rod 32 extends out of the cover 37 to cover the driving assembly 3 through the cover 37, so as to enhance the appearance.

Referring to fig. 4-5, the top surface of the box 12 is provided with positioning holes 4 as large as the meshes of the first screen plate 21, the slide rail 23 is provided with strip-shaped holes, the slide block 24 is fixed with support rods 51 penetrating the strip-shaped holes, the top ends of the support rods 51 are provided with display panels 5, the display panels 5 are provided with through holes 52 as large as the positioning holes 4, and when the first screen plate 21 and the second screen plate 22 are superposed, the through holes 52 are superposed with the positioning holes 4. The coincidence degree of the positioning holes 4 and the through holes 52 is synchronized with the coincidence degree of the first screen plate 21 and the second screen plate 22, so that people can know the coincidence degree of the first screen plate 21 and the second screen plate 22 inside the box body 12 from the outside, and the relative positions of the first screen plate 21 and the second screen plate 22 can be further adjusted.

Embodiment 3, referring to fig. 6, the driving assembly 3 may also be another structure, the driving assembly 3 includes two connecting rods 31 disposed along a direction perpendicular to the screw rod 25, and a driving rod 32 vertically and rotatably connected to the connecting plate 35, two rotating sleeves 36 are fixed on an outer side wall of the box 12, the rotating sleeves 36 correspond to the connecting rods 31 one by one, first bevel gears 33 engaged with each other are fixed on the driving rod 32 and the two connecting rods 31, a second bevel gear 34 engaged with each other is disposed between the connecting rod 31 and the screw rod 25, when the driving rod 32 is rotated, the two connecting rods 31 are driven to rotate, and the connecting rod 31 drives the screw rod 25 to rotate. Therefore, the screw rods 25 are directly driven to rotate externally, and meanwhile, the two screw rods 25 are driven to synchronously rotate by rotating the driving rod 32 and the connecting rod 31 due to the fact that the number of the screw rods 25 is two, so that the second screen plate 22 is prevented from being clamped in the sliding rail 23.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (6)

1. The utility model provides a sieving mechanism for sieving plastic granules, includes base (11), sets up box (12) on base (11) and is located screen cloth (2) of box (12), connect its characterized in that through spring (13) between box (12) and base (11): the screen cloth (2) include two-layer same first sieve (21) and second sieve (22), first sieve (21) are fixed on box (12), second sieve (22) slide and connect on box (12), be equipped with slide rail (23) on box (12), the both sides of second sieve (22) are fixed with slide slider (24) of connection in slide rail (23), slide rail (23) internal rotation is connected with lead screw (25), slider (24) threaded connection is on lead screw (25), box (12) outside is equipped with and is used for driving lead screw (25) pivoted drive assembly (3).

2. A screening apparatus for screening plastic granules according to claim 1, wherein: be fixed with connecting plate (35) on the lateral wall of box (12), lead screw (25) extend box (12), drive assembly (3) include along one connecting rod (31), the vertical actuating lever (32) of rotating the connection on connecting plate (35) that perpendicular to lead screw (25) direction set up, be fixed with intermeshing's first bevel gear (33) on actuating lever (32) and connecting rod (31), be equipped with intermeshing second bevel gear (34) between connecting rod (31) and lead screw (25), when rotating during actuating lever (32), drive connecting rod (31) rotate, connecting rod (31) drive lead screw (25) and rotate.

3. A screening apparatus for screening plastic granules according to claim 1, wherein: the outer side wall of the box body (12) is fixedly provided with a connecting plate (35), the screw rod (25) extends out of the box body (12), the driving assembly (3) comprises two connecting rods (31) arranged in the direction perpendicular to the screw rod (25) and a driving rod (32) vertically connected to the connecting plate (35) in a rotating mode, first bevel gears (33) meshed with each other are fixedly arranged on the driving rod (32) and the two connecting rods (31), a second bevel gear (34) meshed with each other is arranged between the connecting rods (31) and the screw rod (25), when the driving rod (32) rotates, the two connecting rods (31) are driven to rotate, and the connecting rods (31) drive the screw rod (25) to rotate.

4. A screening apparatus for screening plastic granules according to claim 2 or 3, wherein: and a cover shell (37) used for covering the driving assembly (3) is fixed outside the box body (12), and the driving rod (32) extends out of the cover shell (37).

5. A screening apparatus for screening plastic granules according to claim 1, wherein: locating hole (4) such as mesh on the top surface of box (12) seted up with first sieve (21), the bar hole has been seted up on slide rail (23), be fixed with bracing piece (51) that pass the bar hole on slider (24), the top of bracing piece (51) is equipped with display panel (5), set up through-hole (52) such as big with locating hole (4) on display panel (5), work as when first sieve (21) and second sieve (22) coincide, through-hole (52) and locating hole (4) coincide.

6. A screening apparatus for screening plastic granules according to claim 1, wherein: the sliding rail (23) is fixedly connected with the first sieve plate (21), and the sliding rail (23) is fixed on the box body (12) through a bolt.

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