Multi-stage fine separation equipment for plastic particle processing

Abstract

The invention relates to the field of plastic particle processing, in particular to plastic particle processing multistage fine separation equipment which comprises an upper shell, an access hole is formed in the other side of the upper shell, two adjustable screening mechanisms distributed in an array mode are arranged in the upper shell, and a second discharging plate is arranged between the two adjustable screening mechanisms. The adjustable screening mechanism comprises inclined plates which are symmetrically distributed, the inclined plates are inserted into the upper shell and are in sliding connection with the upper shell, a drying and dust removing mechanism is arranged below the upper shell and comprises a lower shell, the lower shell is fixedly connected with the upper shell and internally communicated with the upper shell, and an air outlet square pipe is fixedly installed on the outer side of the lower shell through bolts; according to the plastic particle screening device, through combined use of the double adjustable screening mechanisms, the first discharging plate, the second discharging plate and the screening discharging hopper, plastic particles of different sizes can be screened through the device, large particles, proper particles, small particles and dust in the particles can be discharged separately, and therefore follow-up recycling, machining and reusing are facilitated.

Description

Technical Field

[0001] The invention relates to the field of plastic particle processing, in particular to a multi-stage fine separation device for plastic particle processing. Background Art

[0002] With the continuous development of the plastics industry and the increasing requirements for the quality of plastic products, the technology of plastic particle separation has gradually emerged. In the early days, the classification of plastic particles was relatively extensive, mainly based on appearance and basic chemical properties, and then plastic particles of obviously different sizes and shapes were separated by hand selection or simple screening devices.

[0003] China Invention discloses a modified plastic particle multi-stage fine separation device (application number: 2023105700451). This application classifies plastic particles through multi-stage fine separation, and then outputs the plastic particles through a discharging power structure, thereby efficiently separating plastic particles of different sizes and shapes, thereby improving the efficiency and quality of reuse;

[0004] However, the above device can only screen round plastic particles, and it is difficult to screen cylindrical plastic particles. In addition, there is no sieve hole adjustment mechanism in the device, which limits the scene when the device is used and can only screen plastic particles of a single specification.

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a multi-stage fine separation equipment for processing plastic particles to solve the above-mentioned technical defects.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0008] A multi-stage fine separation device for processing plastic particles, comprising an upper shell, an inspection port is provided on the other side of the upper shell, two adjustable screening mechanisms arranged in an array are arranged inside the upper shell, a blanking plate 2 is arranged between the two adjustable screening mechanisms, the adjustable screening mechanism comprises symmetrically distributed inclined plates, the inclined plates are all inserted into the upper shell and slidably connected to the upper shell;

[0009] A drying and dust removal mechanism is provided below the upper shell, and the drying and dust removal mechanism includes a lower shell, which is fixedly connected to the upper shell and internally communicated with the upper shell, an air outlet square pipe is fixedly installed on the outer side of the lower shell by bolts, an air inlet square pipe is provided above the air outlet square pipe, an air equalizing component is provided between the air outlet square pipe and the air inlet square pipe, and the air equalizing component includes a shell.

[0010] Preferably, an inclined blanking plate is fixedly installed on the top of the upper shell by bolts, an internal threaded cylinder is also fixedly installed on the top of the upper shell by welding, an air inlet slot is opened on one side of the upper shell, a fixedly connected limit plate is provided inside the inspection port, and a slidably connected upper pressure plate and lower pressure plate are also provided inside the upper shell, and a telescopic spring is fixedly provided on one side of the upper pressure plate and the lower pressure plate.

[0011] Preferably, the second unloading plate is fixed to the upper shell body by bolts, a baffle is fixedly provided above the lower end of the inclined plate, and inclined rods distributed in an array are provided between the inclined plates. The shafts at the upper ends of the inclined rods are inserted into the limiting plate one and are slidably connected to the limiting plate one. Rubber pads are provided above and below the inclined plate and one end of the inclined rod, and the outer side of the rubber pad is fixed with a limiting plate two by adhesive.

[0012] Preferably, the lower limit plate 2 is fixedly connected to the bottom of the inspection port, the upper limit plate 2 is provided with a rotatably connected hand screw, the hand screw is threadedly connected to the internal threaded tube, and the outer side of the inclined rod and one end shaft of the inclined plate are fixedly provided with a stopper;

[0013] Fixedly connected limit rods are arranged between the blocks, and a second fixedly connected telescopic spring is arranged inside the inspection opening. The second telescopic spring runs through all the blocks and is slidably connected with the blocks.

[0014] Preferably, a lead screw nut is fixedly provided under the shaft at one end of the inclined plate, a stepper motor is embedded inside the upper shell, a fixedly connected bidirectional lead screw is provided at the end of the driving shaft of the stepper motor, and the bidirectional lead screw and the lead screw nut are both threadedly connected.

[0015] Preferably, an integrally formed screening lower hopper is fixedly provided inside the lower shell body, an array of sieve holes are provided inside the screening lower hopper, and a fixedly connected and internally communicated conveying cylinder is provided below the screening lower hopper.

[0016] Preferably, an air outlet slot is opened on one side of the lower shell, a servo motor is fixedly installed on one end of the lower shell by bolts, a driving shaft of the servo motor extends into a conveying cylinder and is fixedly provided with a spiral conveyor belt, one end of the air outlet square tube covers the air outlet slot and is internally connected, an array-distributed electric heating wire is fixedly installed inside the air inlet square tube, and one end of the air inlet square tube is connected to the interior of the air inlet slot.

[0017] Preferably, symmetrically distributed mounting plates are fixedly provided on both sides of the shell, and a servo motor 2 is fixedly installed inside the shell by bolts.

[0018] Preferably, symmetrically distributed synchronous wheels are provided inside the shell, a synchronous belt is sleeved on the outer side of the synchronous wheels, a first fan and a second fan are fixedly provided inside the two synchronous wheels respectively, and the end of the driving shaft of the second servo motor is fixedly connected to one of the synchronous wheels.

[0019] Compared with the prior art, the above technical solution has the following beneficial effects:

[0020] 1. The present invention uses a double adjustable screening mechanism, a first feeding plate, a second feeding plate and a screening feeding hopper in combination, so that the device can screen plastic particles of different sizes, and the device can separately discharge larger particles, suitable particles, smaller particles and dust therein, thereby facilitating subsequent recycling and reuse.

[0021] 2. The present invention starts the second servo motor to drive the first fan and the second fan to rotate. At this time, air starts to enter the air inlet square tube and air starts to exit the air outlet square tube. One end of the air outlet square tube is connected to an external dust removal mechanism. The air entering the air inlet square tube is heated by the electric heating wire and then blown into the upper shell body to dry the plastic particles. The hot air then passes through two adjustable screening mechanisms to bring out the fine dust in the plastic particles, and the hot air with fine dust is discharged through the air outlet square tube. Since the rotation speed of the first fan and the second fan is the same, the air inlet and air outlet volumes in the upper shell body are the same, thereby avoiding the situation where positive pressure or negative pressure in the upper shell body caused by the different air inlet and air outlet volumes, thereby sucking in dust from the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a top view of the overall structure of the present invention;

[0026] Figure 3 The present invention Figure 2 A schematic cross-sectional structure diagram of ;

[0027] Figure 4 It is a schematic diagram of the installation structure of the adjustable screening mechanism in the upper housing of the present invention;

[0028] Figure 5 It is a schematic diagram of the overall structure of the adjustable screening mechanism in the present invention;

[0029] Figure 6 It is a schematic diagram of the connection structure between the stepping motor and the inclined rod in the present invention;

[0030] Figure 7 It is a schematic diagram of the overall structure of the drying and dust removal mechanism in the present invention;

[0031] Figure 8 It is a schematic cross-sectional structural diagram of the lower shell in the present invention;

[0032] Fig. 9 It is a schematic diagram of the connection structure of the air outlet square tube, the air inlet square tube and the air equalization component in the present invention;

[0033] Fig.10 It is a schematic cross-sectional structural diagram of the wind equalizing component in the present invention.

[0034] Legend:

[0035] 1. Upper shell; 11. Feeding plate 1; 12. Internal threaded barrel; 13. Air inlet slot; 14. Side feeding plate 1; 141. Side feeding plate 2; 15. Feeding plate 2; 16. Inspection port; 17. Limiting plate 1; 18. Upper pressure plate; 19. Lower pressure plate;

[0036] 2. Adjustable screening mechanism; 21. Inclined plate; 22. Baffle; 23. Inclined rod; 24. Second limit plate; 241. Thumb screw; 25. Rubber pad; 26. Stopper; 27. Limit rod; 28. Second telescopic spring; 29. ​​Screw nut; 30. Stepper motor; 31. Bidirectional screw;

[0037] 4. Drying and dust removal mechanism; 41. Lower shell; 42. Screening lower hopper; 43. Dust suction bin; 44. Conveying cylinder; 45. Servo motor 1; 46. Spiral conveyor belt; 47. Air outlet slot; 48. Air outlet square pipe; 49. Air inlet square pipe; 50. Electric heating wire;

[0038] 6. Air distribution assembly; 61. Shell; 62. Mounting plate; 63. Second servo motor; 64. Synchronous wheel; 65. Synchronous belt; 66. First fan; 67. Second fan. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] Embodiment 1:

[0041] See also Figure 1 - Figure 6 As shown, the present invention is a multi-stage fine separation equipment for processing plastic particles, including an upper shell 1, a blanking plate 11 arranged obliquely is fixedly installed on the upper part of the upper shell 1 by bolts, an internal threaded cylinder 12 is also fixedly provided on the upper part of the upper shell 1 by welding, an air inlet slot 13 is provided on one side of the upper shell 1, an inspection port 16 is provided on the other side of the upper shell 1, a fixedly connected limit plate 17 is provided inside the inspection port 16, an upper pressure plate 18 and a lower pressure plate 19 which are slidably connected are also provided inside the upper shell 1, and a telescopic spring 1 is fixedly provided on one side of the upper pressure plate 18 and the lower pressure plate 19, and the telescopic spring 1 is used to drive the upper pressure plate 18 and the lower pressure plate 19 to move closer to the middle.

[0042] One side of the upper shell 1 is also provided with two discharge ports distributed in an array, the outer side of the upper discharge port is provided with a fixedly connected side discharge plate 14, and the outer side of the lower discharge port is provided with a fixedly connected side discharge plate 2 141, and the interior of the upper shell 1 is provided with two adjustable screening mechanisms 2 distributed in an array, and a discharge plate 2 15 is provided between the two adjustable screening mechanisms 2, and the discharge plate 2 15 is fixed to the upper shell 1 by bolts.

[0043] The adjustable screening mechanism 2 includes symmetrically distributed inclined plates 21, which are inserted into the upper shell body 1 and slidably connected to the upper shell body 1. Baffle plates 22 are fixedly provided above the lower ends of the inclined plates 21, and the baffle plates 22 are slidably connected to the upper shell body 1. Array-distributed inclined rods 23 are also provided between the inclined plates 21. The shafts at the upper ends of the inclined rods 23 are inserted into the limit plate 17 and slidably connected to the limit plate 17. Rubber pads 25 are provided above and below one end of the inclined plate 21 and the inclined rod 23, and a limit plate 24 is fixed to the outer side of the rubber pad 25 by adhesive.

[0044] The lower limit plate 24 is fixedly connected to the bottom of the inspection port 16, and the upper limit plate 24 is provided with a rotatably connected hand screw 241, which is threadedly connected to the internal threaded tube 12. The inclined rod 23 and the outer side of one end axis of the inclined plate 21 are fixedly provided with a stopper 26, and the stoppers 26 are fixedly provided with a limit rod 27. The inside of the inspection port 16 is provided with a fixedly connected telescopic spring 28, which passes through all the stoppers 26 and is slidably connected to the stoppers 26.

[0045] A lead screw nut 29 is fixedly provided under the shaft at one end of the inclined plate 21, and a stepper motor 30 is embedded inside the upper shell 1. A fixedly connected bidirectional lead screw 31 is provided at the end of the driving shaft of the stepper motor 30. The bidirectional lead screw 31 and the lead screw nut 29 are both threadedly connected. When the stepper motor 30 is started, the bidirectional lead screw 31 is driven to rotate, and the bidirectional lead screw 31 drives the two lead screw nuts 29 to move inward or away from each other synchronously.

[0046] Embodiment 2:

[0047] See also Figure 7 - Fig.10 As shown, the present invention is a multi-stage fine separation equipment for processing plastic particles, including an upper shell 1, a drying and dust removal mechanism 4 is provided below the upper shell 1, the drying and dust removal mechanism 4 includes a lower shell 41, the lower shell 41 is fixedly connected to the upper shell 1 and is internally connected, an integrally formed screening lower hopper 42 is fixedly provided inside the lower shell 41, an array of sieve holes are provided inside the screening lower hopper 42, and a fixedly connected and internally connected conveying cylinder 44 is provided below the screening lower hopper 42.

[0048] An air outlet slot 47 is provided on one side of the lower shell 41, and a cavity between the lower shell 41 and the screening lower hopper 42 is a dust collection bin 43. A servo motor 45 is fixedly installed on one end of the lower shell 41 by bolts, and a driving shaft of the servo motor 45 extends into a conveying cylinder 44 and is fixedly provided with a spiral conveyor belt 46. An air outlet square pipe 48 is fixedly installed on the outer side of the lower shell 41 by bolts, and one end of the air outlet square pipe 48 covers the air outlet slot 47 and is connected to the inside, and an air inlet square pipe 49 is provided above the air outlet square pipe 48, and an array of electric heating wires 50 are fixedly installed inside the air inlet square pipe 49, and one end of the air inlet square pipe 49 is connected to the inside of the air inlet slot 13.

[0049] An air equalizing component 6 is provided between the air outlet square tube 48 and the air inlet square tube 49. The air equalizing component 6 includes a shell 61. Both sides of the shell 61 are fixed with symmetrically distributed mounting plates 62. The mounting plates 62 are used to fix the shell 61 inside the air outlet square tube 48 and the air inlet square tube 49. A servo motor 2 63 is fixed inside the shell 61 by bolts. An array of ventilation grooves are provided on the outside of the shell 61. The ventilation grooves are used for heat dissipation of the servo motor 2 63.

[0050] The inside of the shell 61 is provided with symmetrically distributed synchronous wheels 64, and the outer side of the synchronous wheels 64 is sleeved with a synchronous belt 65. The inside of the two synchronous wheels 64 are respectively fixed with a first fan 66 and a second fan 67. The end of the driving shaft of the servo motor 2 63 is fixedly connected to one of the synchronous wheels 64. When the servo motor 2 63 is started, it drives the first fan 66 and the second fan 67 to rotate synchronously. The blades of the first fan 66 and the second fan 67 are directed in opposite directions. When the first fan 66 and the second fan 67 rotate, the wind directions are opposite.

[0051] The working process and principle of this application are as follows:

[0052] Before use, the interval of the inclined rods 23 in the adjustable screening mechanism 2 is adjusted according to the screening size of the plastic particles, and the upper limit plate 24 is driven to move upward by twisting the hand screw 241, so as to loosen the inclined plate 21 and the inclined rod 23, and the bidirectional lead screw 31 is driven to rotate by starting the stepping motor 30, and the bidirectional lead screw 31 drives the two lead screw nuts 29 to move inward or outward synchronously, thereby driving the inclined plates 21 on both sides to move synchronously, and when the inclined plates 21 at both ends move toward the middle, the limit rods 27 between the stoppers 26 drive the inclined rods 23 to move synchronously, so as to adjust the interval between the inclined rods 23;

[0053] After the interval between the inclined rods 23 is adjusted, the plastic particles are poured down above the upper shell 1. At this time, the plastic particles are transported to the higher end of the inclined rod 23 through the guide of the unloading plate 11, and the servo motor 2 63 is started at the same time. When the servo motor 2 63 is started, the first fan 66 and the second fan 67 are driven to rotate. At this time, the air starts to flow into the air inlet square tube 49, and the air starts to flow out of the air outlet square tube 48. One end of the air outlet square tube 48 is connected to the dust removal mechanism outside. The air entering the air inlet square tube 49 is heated by the electric heating wire 50 and then blown into the upper shell 1 to dry the plastic particles. The hot air then passes through two adjustable screening mechanisms 2 to take out the fine dust in the plastic particles.

[0054] The hot air with fine dust is discharged through the air outlet square pipe 48. Since the rotation speed of the first fan 66 and the second fan 67 is the same, the air intake and air outlet in the upper shell 1 are the same, thereby avoiding the situation where positive pressure or negative pressure occurs in the upper shell 1 due to the difference between the air intake and the air outlet. After being screened by the adjustable screening mechanism 2, the larger plastic particles are discharged through the side discharge plate 14, the appropriate plastic particles are discharged through the side discharge plate 2 141, and the smaller plastic particles are discharged through the conveying cylinder 44. The fine dust in the plastic particles is discharged through the air outlet square pipe 48, thereby completing the fine separation and graded discharge of the plastic particles, and drying the plastic particles at the same time.

[0055] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-stage fine separation device for processing plastic particles, comprising an upper shell (1), characterized in that: An inspection port (16) is provided on the other side of the upper shell (1), two adjustable screening mechanisms (2) are arranged in an array inside the upper shell (1), a blanking plate (15) is provided between the two adjustable screening mechanisms (2), and the adjustable screening mechanisms (2) include symmetrically distributed inclined plates (21), each of which is inserted into the upper shell (1) and is slidably connected to the upper shell (1); A drying and dust removal mechanism (4) is provided below the upper shell (1), and the drying and dust removal mechanism (4) comprises a lower shell (41), the lower shell (41) is fixedly connected to the upper shell (1) and is internally communicated, an air outlet square pipe (48) is fixedly installed on the outer side of the lower shell (41) by means of bolts, an air inlet square pipe (49) is provided above the air outlet square pipe (48), an air distribution component (6) is provided between the air outlet square pipe (48) and the air inlet square pipe (49), and the air distribution component (6) comprises a shell (61).

2. A multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: An inclined blanking plate (11) is fixedly installed on the upper part of the upper shell (1) by bolts, and an internal threaded tube (12) is also fixedly installed on the upper part of the upper shell (1) by welding. An air inlet groove (13) is opened on one side of the upper shell (1), and a fixedly connected limit plate (17) is provided inside the inspection port (16). An upper pressure plate (18) and a lower pressure plate (19) that are slidably connected are also provided inside the upper shell (1), and a telescopic spring is fixedly provided on one side of each of the upper pressure plate (18) and the lower pressure plate (19).

3. The multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: The second blanking plate (15) is fixed to the upper shell (1) by bolts, a baffle (22) is fixedly provided above the lower end of the inclined plate (21), and an array of inclined rods (23) are provided between the inclined plates (21). The shafts at the upper ends of the inclined rods (23) are inserted into the limiting plate (17) and are slidably connected to the limiting plate (17). Rubber pads (25) are provided above and below one end of the inclined plate (21) and the inclined rods (23), and the outer side of the rubber pads (25) is fixed with a limiting plate (24) by adhesive.

4. A multi-stage fine separation equipment for processing plastic particles according to claim 3, characterized in that: The lower limiting plate (24) is fixedly connected to the bottom of the inspection port (16); the upper limiting plate (24) is provided with a rotatably connected hand screw (241); the hand screw (241) is threadedly connected to the internal threaded tube (12); and a stopper (26) is fixedly provided on the outer side of the shaft at one end of the inclined rod (23) and the inclined plate (21); A fixedly connected limiting rod (27) is provided between the stoppers (26), and a fixedly connected telescopic spring (28) is provided inside the inspection opening (16). The telescopic spring (28) passes through all the stoppers (26) and is slidably connected to the stoppers (26).

5. The multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: A lead screw nut (29) is fixedly provided below the shaft at one end of the inclined plate (21), a stepper motor (30) is embedded inside the upper shell (1), a bidirectional lead screw (31) is fixedly connected at the end of the drive shaft of the stepper motor (30), and the bidirectional lead screw (31) is threadedly connected to the lead screw nut (29).

6. The multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: An integrally formed screening lower hopper (42) is fixedly provided inside the lower shell (41), an array of sieve holes are provided inside the screening lower hopper (42), and a fixedly connected and internally communicated conveying cylinder (44) is provided below the screening lower hopper (42).

7. The multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: An air outlet slot (47) is provided on one side of the lower shell (41); a servo motor (45) is fixedly installed on one end of the lower shell (41) by means of bolts; a driving shaft of the servo motor (45) extends into a conveying cylinder (44) on which a spiral conveying belt (46) is fixedly installed; one end of the air outlet square tube (48) covers the air outlet slot (47) and is connected to the inside; an array of electric heating wires (50) are fixedly installed inside the air inlet square tube (49); one end of the air inlet square tube (49) is connected to the inside of the air inlet slot (13).

8. The multi-stage fine separation equipment for processing plastic particles according to claim 1, characterized in that: Symmetrically distributed mounting plates (62) are fixedly provided on both sides of the housing (61), and a servo motor 2 (63) is fixedly installed inside the housing (61) by means of bolts.

9. The multi-stage fine separation equipment for processing plastic particles according to claim 8, characterized in that: The housing (61) is provided with symmetrically distributed synchronous wheels (64), the outer sides of the synchronous wheels (64) are sleeved with synchronous belts (65), the interiors of the two synchronous wheels (64) are respectively fixed with a first fan (66) and a second fan (67), and the end of the drive shaft of the second servo motor (63) is fixedly connected to one of the synchronous wheels (64).

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