Drying device for plastic particle production

Abstract

The utility model relates to a drying device for plastic particle production, which comprises a frame, a drying cylinder in transmission connection with a driving source is rotatably arranged on the frame, two ends of the drying cylinder are open, and a plurality of shifting plates annularly arrayed along the axis of the drying cylinder are fixedly connected onto the inner wall of the drying cylinder. A material blocking end cover which is located on one side of an end opening of the drying cylinder and matched with the drying cylinder is fixedly arranged on the machine frame, an air inlet pipe is fixedly connected to the material blocking end cover, one end of the drying cylinder is fixedly connected with an air outlet pipe, the other end of the drying cylinder extends into the material blocking end cover, a material inlet is formed in the side wall of the drying cylinder, and a material inlet bin door is hinged to the material inlet. The feeding bin door is fixed to the drying cylinder through a fixing bolt which is arranged on the feeding bin door in a penetrating mode and connected to the drying cylinder in a screwed mode. According to the drying device for plastic particle production, the drying cylinder is driven to rotate to drive the shifting plate to repeatedly shift plastic particles in the drying cylinder, so that the plastic particles are fully turned over in the drying cylinder and are fully dried by hot air, and the more thorough drying effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle production equipment, in particular to a drying device for plastic particle production. Background Art

[0002] During the production process of plastic particles, the formed plastic particles need to be cleaned and dried, wherein the purpose of drying is to dry the residual moisture on the cleaned plastic particles for subsequent packaging and storage. In the prior art, for example, the utility model patent: A plastic particle drying device (application number: 201520076861.8) discloses a drying device that stirs the plastic particles by a spiral stirring rod to improve the drying efficiency. However, in the above drying device, the spiral stirring rod does not stir the plastic particles thoroughly enough, and some plastic particles still stick to each other, resulting in incomplete drying of the plastic particles.

[0003] In view of the above problems, the present invention makes improvements. Utility Model Content

[0004] The utility model provides a drying device for producing plastic particles, which solves the above-mentioned problems existing in the prior art during use.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A drying device for producing plastic particles comprises a frame, a drying cylinder with openings at both ends being rotatably arranged on the frame and being transmission-connected to a driving source, a plurality of material-prying plates in a circular array along the axis of the drying cylinder being fixedly connected to the inner wall of the drying cylinder, a material-blocking end cover which is located at one side of the port of the drying cylinder and matches the drying cylinder being fixedly arranged on the frame, an air inlet pipe being fixedly connected to the material-blocking end cover, an air outlet pipe being fixedly connected to one end of the drying cylinder and the other end of the drying cylinder extending into the material-blocking end cover, a material inlet being arranged on the side wall of the drying cylinder, a material inlet bin door being hinged on the material inlet bin door, and the material inlet bin door being fixed to the drying cylinder by fixing bolts which are penetrated through the material inlet bin door and screwed to the drying cylinder.

[0007] Preferably, four driving wheels in a rectangular array are rotatably arranged on the frame, and two limiting rings are fixedly connected to the side walls of the drying cylinder near both ends, and a limiting groove matching the driving wheel is formed between the two limiting rings located at the same end of the drying cylinder. The drying cylinder is placed on the driving wheel so that the driving wheel remains in the limiting groove and contacts the drying cylinder, and the driving source is a motor arranged on the frame, and at least one of the driving wheels is drivingly connected to the motor.

[0008] Preferably, a material discharge port is provided on the material blocking end cover, and a material discharge bin door is hingedly connected to the material discharge port.

[0009] Preferably, the material blocking end cover is fixedly connected with a first positioning plate, the unloading bin door is fixedly connected with a second positioning plate located on one side of the first positioning plate, the first positioning plate is penetrated with a positioning rod, the positioning rod is sleeved with a reset spring with two ends respectively fixedly connected with the positioning rod and the first positioning plate, the second positioning plate is provided with a plurality of positioning holes matching with the positioning rod and alignable with the positioning rod, and the positioning rod is penetrated into one of the positioning holes under the action of the reset spring.

[0010] Preferably, a blanking plate matching the inner diameter of the drying cylinder is provided in the drying cylinder, and a plurality of limiting notches matching the material shifting plate are formed on the blanking plate. The blanking plate is placed in the drying cylinder so that the circumferential surface of the blanking plate contacts the inner wall of the drying cylinder and the plurality of material shifting plates are retained one by one in the plurality of limiting notches. A blanking rod passing through the material blocking end cover along the axis of the drying cylinder is fixedly connected to the blanking plate, and a plurality of vents aligned with the air outlet pipe are formed on the blanking plate.

[0011] Preferably, a material discharge handle is fixedly connected to the end of the material discharge rod passing through the material blocking end cover.

[0012] Preferably, the material blocking end cover is fixedly connected with a material guide plate which is located below the material discharge port and tilted downward.

[0013] In summary, the beneficial effects of the utility model are as follows: the plastic particles to be dried are placed in the drying drum through the material inlet, and the drying drum driven by the driving source to rotate drives the material shifting plate to rotate. When the material shifting plate rotates, the plastic particles placed in the drying drum are shifted to a certain height and then dropped, so that the plastic particles are fully stirred in the drying drum, the adhesion of the plastic particles is reduced, and more thorough drying is achieved under the action of the hot air entering the drying drum through the air inlet pipe. The hot air that has entered the drying drum to dry the plastic particles flows out of the drying drum through the air outlet pipe, takes away the water vapor in the drying drum, and keeps the hot air in the drying drum flowing sufficiently, thereby ensuring the drying effect of the hot air on the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the drying drum in the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the material-diverting plate in the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the middle material stopper end cover of the utility model;

[0020] Figure 6 for Figure 1 A magnified schematic diagram of center A.

[0021] In the figure: 1. frame; 2. drying cylinder; 21. material shifting plate; 22. air outlet pipe; 23. material inlet; 24. material inlet bin door; 241. fixing bolt; 242. first handle; 26. limiting ring; 27. limiting groove; 3. material blocking end cover; 31. air inlet pipe; 32. material discharge port; 33. material discharge bin door; 331. second positioning plate; 332. positioning hole; 333. second handle; 34. first positioning plate; 341. positioning rod; 342. reset spring; 35. material guide plate; 4. driving wheel; 5. motor; 6. material discharge plate; 61. limiting notch; 62. material discharge rod; 63. material discharge handle; 64. vent. DETAILED DESCRIPTION

[0022] The following will be combined with the attached embodiment of the present utility model Figure 1-6 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As shown in the figure, a drying device for producing plastic particles includes a frame 1, on which a drying cylinder 2 is rotatably provided with a driving source and having openings at both ends, a plurality of material-pickup plates 21 in a circular array along the axis of the drying cylinder 2 are fixedly connected to the inner wall of the drying cylinder 2, a material-blocking end cover 3 is fixedly provided on the frame 1 and is located at one side of the port of the drying cylinder 2 and matches the drying cylinder 2, an air inlet pipe 31 is fixedly connected to the material-blocking end cover 3, one end of the drying cylinder 2 is fixedly connected to the air outlet pipe 22 and the other end of the drying cylinder 2 extends into the material-blocking end cover 3, a material inlet 23 is provided on the side wall of the drying cylinder 2, a material inlet 23 is hingedly provided with a material inlet bin door 24, the material inlet bin door 24 is fixed to the drying cylinder 2 by a fixing bolt 241 which is penetrated by the material inlet bin door 24 and screwed to the drying cylinder 2, and a first handle 242 is fixedly connected to the outer surface of the material inlet bin door 24.

[0024] Specifically, the drying cylinder 2 is rotatably arranged on the frame 1 and is transmission-connected to the driving source: four driving wheels 4 are rotatably arranged on the frame 1 and are located in a rectangular array below the drying cylinder 2; two limiting rings 26 are fixedly connected to the side walls of the drying cylinder 2 near both ends; a limiting groove 27 matching the driving wheel 4 is formed between the two limiting rings 26 located at the same end of the drying cylinder 2; the drying cylinder 2 is placed on the driving wheel 4 so that the driving wheel 4 remains in the limiting groove 27 and contacts the drying cylinder 2; the driving source is a motor 5 arranged on the frame 1; and at least one of the driving wheels 4 is transmission-connected to the motor 5.

[0025] In the above embodiment, the air inlet pipe 31 is connected to the air outlet of the hot air blower (the hot air blower belongs to the prior art and its structure is not described here), the fixing bolt 241 is loosened and the feed bin door 24 is flipped through the first handle 242 to open the feed inlet 23, and the plastic particles to be dried are placed in the drying cylinder 2 through the feed inlet 23, and then the feed bin door 24 is closed and the fixing bolt 241 is tightened to fix the feed bin door 24, and the hot air blower conveys hot air into the drying cylinder 2 through the air inlet pipe 31. At the same time, the motor 5 drives the driving wheel 4 to rotate, and the driving wheel 4 drives the drying cylinder 2 to rotate through friction. When the drying cylinder 2 rotates, it drives the air outlet pipe 22 to rotate and the other end of the drying cylinder 2 is kept in the material blocking end cover 3 for rotation. In order to improve the stability of the driving wheel 4 driving the drying cylinder 2 to rotate, an anti-slip pad is provided on the wheel surface of the driving wheel 4 that contacts the drying cylinder 2. The drying drum 2 rotates and drives the material shifting plate 21 on its inner wall to rotate. The shifting plate shifts the plastic particles placed in the drying drum 2 to a certain height and then drops them, so that the plastic particles are fully stirred in the drying drum 2, reducing the adhesion of the plastic particles and achieving more thorough drying under the action of the hot air entering the drying drum 2. The hot air that has entered the drying drum 2 to dry the plastic particles flows out of the drying drum 2 through the air outlet pipe 22, takes away the water vapor in the drying drum 2 and keeps the hot air in the drying drum 2 flowing sufficiently, thereby ensuring the drying effect of the hot air on the plastic particles. The driving wheel 4 remains in the limiting groove 27 when driving the drying drum 2 to rotate, and the axial movement between the driving wheel 4 and the drying drum 2 is limited by the action of the limiting ring 26, thereby ensuring the stability of the drying drum 2 when rotating.

[0026] Furthermore, a material discharge port 32 is provided on the material blocking end cover 3 , and a material discharge bin door 33 is hingedly connected to the material discharge port 32 .

[0027] Specifically, the material blocking end cover 3 is fixedly connected with a first positioning plate 34, and the material discharge bin door 33 is fixedly connected with a second positioning plate 331 located on one side of the first positioning plate 34, the first positioning plate 34 is penetrated by a positioning rod 341, and the positioning rod 341 is sleeved with a reset spring 342 at both ends which are respectively fixedly connected with the positioning rod 341 and the first positioning plate 34, and the second positioning plate 331 is provided with a plurality of positioning holes 332 which match the positioning rod 341 and can be aligned with the positioning rod 341, and the positioning rod 341 is penetrated into one of the positioning holes 332 under the action of the reset spring 342, and a second handle 333 is fixedly connected to the outer surface of the material discharge bin door 33.

[0028] In the above preferred embodiment, after drying is completed, the second handle 333 is used to flip the discharge bin door 33 to open the discharge port, so as to facilitate the removal of the plastic particles placed in the drying cylinder 2 to realize discharge. When flipping the discharge bin door 33, the positioning rod 341 is pulled outward to make it withdraw from the positioning hole 332, and the discharge bin door 33 is flipped to the position where the discharge bin door 33 covers the discharge port 32 or opens the discharge port 32, so that the positioning holes 332 at different positions are aligned with the positioning rod 341, and the positioning rod 341 is inserted into the positioning hole 332 aligned with it under the action of the return spring, and the discharge bin door 33 is positioned at the position of covering the discharge port 32 or opening the discharge port 32, which is convenient for the opening and closing of the discharge bin door 33, and the discharge operation after opening the discharge bin door 33.

[0029] Furthermore, a blanking plate 6 matching the inner diameter of the drying cylinder 2 is provided in the drying cylinder 2, and a plurality of limiting notches 61 matching the material shifting plates 21 are provided on the blanking plate 6. The blanking plate 6 is placed in the drying cylinder 2 so that the circumferential surface of the blanking plate 6 contacts the inner wall of the drying cylinder 2 and the plurality of material shifting plates 21 are retained one by one in the plurality of limiting notches 61. A blanking rod 62 passing through the material blocking end cover 3 along the axis of the drying cylinder 2 is fixedly connected to the blanking plate 6, and a plurality of vents 64 aligned with the air outlet pipe 22 are provided on the blanking plate 6.

[0030] In the above preferred embodiment, the unloading rod 62 can drive the unloading plate 6 to slide along the axis of the drying cylinder 2 in the drying cylinder 2. The cooperation between the limiting notch 61 and the material shifting plate 21 ensures that the circumferential surface of the unloading plate 6 always keeps in contact with the inner wall of the drying cylinder 2 during the sliding process. When the drying cylinder 2 dries the plastic particles, the unloading plate 6 slides in the drying cylinder 2 to the end where the air outlet pipe 22 is located. After the drying is completed and the unloading bin door 33 is opened, the unloading rod 62 is pulled to drive the unloading plate 6 to shift the plastic particles in the drying cylinder 2 out of the drying cylinder 2 and leave the drying cylinder 2 through the unloading port 32, thereby facilitating the unloading operation of the plastic particles. The vent 64 is used for the hot air entering the drying cylinder 2 to flow out of the drying cylinder 2 from the air outlet pipe 22.

[0031] Preferably, a material unloading handle 63 is fixedly connected to the end of the unloading rod 62 passing through the material blocking end cover 3, and the unloading handle 63 facilitates pulling the unloading rod 62 when unloading.

[0032] Preferably, the material blocking end cover 3 is fixedly connected with a guide plate 35 which is located below the discharge port 32 and tilted downward. The guide plate 35 guides the plastic particles leaving the drying cylinder 2 through the discharge port 32 during discharge, so that the plastic particles can smoothly fall into the collection box placed below the guide plate 35, thereby avoiding the scattering of the plastic particles during the discharge process.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drying device for producing plastic particles, comprising a frame (1), characterized in that: A drying cylinder (2) which is rotatably connected to a driving source and has openings at both ends is rotatably arranged on the frame (1); a plurality of material shifting plates (21) arranged in an annular array along the axis of the drying cylinder (2) are fixedly connected to the inner wall of the drying cylinder (2); a material blocking end cover (3) which is located at one side of the end of the drying cylinder (2) and matches the drying cylinder (2) is fixedly arranged on the frame (1); an air inlet pipe (31) is fixedly connected to the material blocking end cover (3); an air outlet pipe (22) is fixedly connected to one end of the drying cylinder (2) and the other end of the drying cylinder (2) extends into the material blocking end cover (3); a material inlet (23) is opened on the side wall of the drying cylinder (2); a material inlet bin door (24) is hingedly connected to the material inlet (23); the material inlet bin door (24) is fixed to the drying cylinder (2) by means of fixing bolts (241) which are penetrated through the material inlet bin door (24) and screwed to the drying cylinder (2).

2. A drying device for producing plastic particles according to claim 1, characterized in that: Four driving wheels (4) are rotatably arranged on the frame (1) and are located in a rectangular array below the drying cylinder (2). Two limiting rings (26) are fixedly connected to the side walls of the drying cylinder (2) near both ends. A limiting groove (27) matching the driving wheel (4) is formed between the two limiting rings (26) located at the same end of the drying cylinder (2). The drying cylinder (2) is placed on the driving wheel (4) so ​​that the driving wheel (4) is kept in the limiting groove (27) and contacts the drying cylinder (2). The driving source is a motor (5) arranged on the frame (1), and at least one of the driving wheels (4) is drivingly connected to the motor (5).

3. A drying device for producing plastic particles according to claim 1, characterized in that: The material blocking end cover (3) is provided with a material discharge opening (32), and a material discharge bin door (33) is hingedly connected to the material discharge opening (32).

4. A drying device for producing plastic particles according to claim 3, characterized in that: The material blocking end cover (3) is fixedly connected to a first positioning plate (34), the material unloading bin door (33) is fixedly connected to a second positioning plate (331) located on one side of the first positioning plate (34), the first positioning plate (34) is provided with a positioning rod (341), the positioning rod (341) is sleeved with a reset spring (342) with two ends respectively fixedly connected to the positioning rod (341) and the first positioning plate (34), the second positioning plate (331) is provided with a plurality of positioning holes (332) matching with the positioning rod (341) and alignable with the positioning rod (341), the positioning rod (341) is inserted into one of the positioning holes (332) under the action of the reset spring (342).

5. A drying device for producing plastic particles according to claim 4, characterized in that: The drying cylinder (2) is provided with a blanking plate (6) matching the inner diameter of the drying cylinder (2), and the blanking plate (6) is provided with a plurality of limiting notches (61) matching the material shifting plates (21). The blanking plate (6) is placed in the drying cylinder (2) so that the circumferential surface of the blanking plate (6) contacts the inner wall of the drying cylinder (2) and the plurality of material shifting plates (21) are retained one by one in the plurality of limiting notches (61). The blanking plate (6) is fixedly connected with a blanking rod (62) passing through the material blocking end cover (3) along the axis of the drying cylinder (2), and the blanking plate (6) is provided with a plurality of vents (64) aligned with the air outlet pipe (22).

6. A drying device for producing plastic particles according to claim 5, characterized in that: A material discharge handle (63) is fixedly connected to the end of the material discharge rod (62) that passes through the material blocking end cover (3).

7. A drying device for producing plastic particles according to claim 5, characterized in that: The material blocking end cover (3) is fixedly connected to a material guide plate (35) located below the material discharge opening (32) and tilted downward.

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