Plastic particle drying device for plastic production

Abstract

The utility model provides a plastic particle drying device for plastic production, and relates to the technical field of plastic production. The plastic particle drying device for plastic production comprises a drying box, a box groove is formed in the upper side of the drying box, a screening groove is formed in the lower side of the drying box, the box groove communicates with the screening groove through a control valve, and a feeding port is formed in one side of the upper end of the box groove; a driving motor is fixed to the middle of the upper end of the drying box, a fixing rod is fixed to the driving end of the driving motor, a connecting structure is arranged on the fixing rod, and a stirring shaft is arranged on the connecting structure. According to the plastic particle drying device for plastic production, the driving motor drives the fixing rod to rotate, the full stirring effect is achieved, the effect of improving the using effect of the drying device is achieved, the driving motor drives the fixing rod to rotate, and the vibration screening effect is achieved; and the effect of reducing the use cost and the manufacturing cost of the drying device is achieved.

Description

Technical Field

[0001] The utility model relates to a plastic particle drying device for plastic production, belonging to the technical field of plastic production. Background Technique

[0002] With the continuous development of the chemical industry, plastic particles have been widely used. Plastic particles are the common name for plastic granules, which are raw materials for storing, transporting and processing plastic products in semi-finished form, including types such as polystyrene plastic particles, non-brittle plastic particles and modified polystyrene plastic particles. During the processing of plastic particles, a drying device is required to dry them.

[0003] The comparative patent document with the publication number of "CN219359949U, a plastic particle drying device for plastic production, includes a drying box, a screening box and a feeding channel. One side of the top of the drying box is provided with a feeding port. Temperature sensors are installed on both sides of the inner top of the drying box. Heating plates are installed at both ends of the inside of the drying box. A stirring mechanism is arranged inside the drying box. Drainage holes are installed on both sides of the bottom of the drying box. The bottom of the drying box is provided with a feeding channel. The bottom of the feeding channel is provided with a screening box. Discharge ports are installed at the bottom and both sides of the screening box. A screening mechanism is arranged inside the screening box. Cooling mechanisms are arranged on both sides of the top of the screening box".

[0004] In the actual use of the above patent, the following problems still exist: Although the patent can perform daily drying treatment on plastic particles, in the actual use process, the single-direction rotation of a single stirring mechanism makes the driven plastic particles prone to vortex phenomenon, resulting in the plastic particles at the edge position always remaining at the edge, while the plastic particles at the central position always remain at the center. The drying time required for the plastic particles at the central position is too long, and it is easy to have insufficient drying, which further makes the use effect of the drying device not good. In addition, another motor needs to be provided to drive the sieve plate to move in order to filter the damaged plastic particles through the sieve plate, resulting in relatively high use cost and manufacturing cost of the drying device. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The utility model provides a plastic particle drying device for plastic production to solve the problems that the use effect of the existing drying device is not good and the use cost and manufacturing cost of the drying device are relatively high.

[0007] (2) Technical Solutions

[0008] The present utility model is realized through the following technical solutions: A plastic granule drying device for plastic production, including a drying box. A box groove is provided on the upper side of the drying box, and a screening groove is provided on the lower side of the drying box. The box groove and the screening groove are connected and communicated through a control valve. One side of the upper end of the box groove is provided with a feed inlet;

[0009] A driving motor is fixed in the middle of the upper end of the drying box. A fixed rod is fixed at the driving end of the driving motor. A connecting structure is arranged on the fixed rod, and a stirring shaft is arranged on the connecting structure. The connecting structure can drive the stirring shaft to rotate circumferentially around its own central axis, and at the same time, it can also drive the stirring shaft to rotate circumferentially around the central axis of the fixed rod to fully stir the plastic granules in the box groove.

[0010] Preferably, the connecting structure includes a scraping frame and a fixing frame. The other end of the fixing frame is rotatably connected to the stirring shaft. A gear is fixed at the upper end of the stirring shaft, and the gear is meshed with an external gear ring.

[0011] Preferably, the middle of the scraping frame is fixed on the lower side of the fixed rod. The vertical section of the scraping frame is U-shaped. The outer surface of the scraping frame is rotatably connected to the inner wall of the box groove. One end of the fixing frame is fixed on the upper side of the fixed rod.

[0012] Preferably, the other end of the fixing frame is rotatably connected to the outer surface of the stirring shaft. The upper end of the stirring shaft is fixed in the middle of the gear. The cross section of the stirring shaft is cross-shaped. The gear is meshed with the external gear ring, and the middle of the external gear ring is fixed on the inner wall of the upper side of the box groove.

[0013] Preferably, a connecting frame is fixed at the lower end of the fixed rod. A convex block is fixed at the other end of the connecting frame. A support plate is fixed at the lower end of the drying box. A screw rod penetrates through the middle of the support plate. A rotating disk is rotatably connected to the upper side of the screw rod. A spring is fixed at the lower end of the rotating disk. The upper end of the screw rod is detachably installed with a sieve plate through internal threads.

[0014] Preferably, the outer surface of the convex block is slidably connected to the outer surface of the sieve plate. The convex block is hemispherical. The sieve plate is V-shaped. The outer surface of the sieve plate is slidably connected to the inner wall of the screening groove. A plurality of screening holes are provided in the middle of the sieve plate.

[0015] Preferably, the middle of the rotating disk is rotatably connected to the upper side of the screw rod. One end of the spring is fixed at the lower end of the rotating disk, and the other end of the spring is fixed at the middle of the upper end of the support plate.

[0016] The present utility model provides a plastic granule drying device for plastic production, and the beneficial effects thereof are as follows:

[0017] (1) The plastic pellet drying device for plastic production drives the fixed rod to rotate through a driving motor, enabling the fixed rod, scraping frame, fixed frame, stirring shaft, gear, and external gear ring to cooperate with each other to achieve the effect of sufficient stirring, avoiding the vortex phenomenon of plastic pellets caused by single stirring, which may lead to insufficient drying, and thus improving the use effect of the drying device.

[0018] (2) The plastic pellet drying device for plastic production drives the fixed rod to rotate through a driving motor, enabling the fixed rod, connecting frame, convex block, sieve plate, screw rod, rotating disk, and spring to cooperate with each other to achieve the effect of vibrating screening. It can be driven by the single power of stirring without the need to set up another power source for driving operation, thereby reducing the use cost and manufacturing cost of the drying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the present utility model;

[0020] Figure 2 is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 3 is a sectional view of the drying box of the present utility model;

[0022] Figure 4 is a schematic diagram of the structure of the stirring shaft of the present utility model.

[0023]

SYMBOLS DESCRIPTION OF MAIN COMPONENTS

[0024] 1. Drying box; 2. Box groove; 3. Screening groove; 4. Control valve; 5. Feeding port; 6. Driving motor; 7. Fixed rod; 8. Scraping frame; 9. Fixed frame; 10. Stirring shaft; 11. Gear; 12. External gear ring; 13. Connecting frame; 14. Convex block; 15. Support plate; 16. Screw rod; 17. Rotating disk; 18. Spring; 19. Sieve plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The embodiment of the present utility model provides a plastic pellet drying device for plastic production.

[0026] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, including a drying oven 1. The drying oven 1 is internally wound with an electric heating coil, which can heat the inside of the drying oven 1 to realize the drying operation of plastic particles. There is a box groove 2 opened on the upper side of the drying oven 1, and the box groove 2 is used for loading plastic particles. There is a screening groove 3 opened on the lower side of the drying oven 1, and the screening groove 3 is used for screening plastic particles. The complete plastic particles fall from both sides under the screening of the sieve plate 19, and the damaged plastic particles fall from the middle under the screening of the sieve plate 19, thus completing the screening operation. The box groove 2 and the screening groove 3 are connected by a control valve 4. The control valve 4 is a PLC programmable logic controller to drive the opening and closing of the valve. There is a feed port 5 opened on one side of the upper end of the box groove 2, and the feed port 5 is used for feeding; There is a driving motor 6 fixed in the middle of the upper end of the drying oven 1. The driving end of the driving motor 6 is fixed with a fixed rod 7. There is a connecting structure arranged on the fixed rod 7. The connecting structure includes a scraping rack 8 and a fixing rack 9. The other end of the fixing rack 9 is rotatably connected with a stirring shaft 10. The upper end of the stirring shaft 10 is fixed with a gear 11, and the gear 11 is meshed with an external gear ring 12.

[0027] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , specifically, the middle of the scraping rack 8 is fixed on the lower side of the fixed rod 7. The vertical section of the scraping rack 8 is U-shaped. The outer surface of the scraping rack 8 is rotatably connected to the inner wall of the box groove 2. One end of the fixing rack 9 is fixed on the upper side of the fixed rod 7, and the other end of the fixing rack 9 is rotatably connected to the outer surface of the stirring shaft 10. The upper end of the stirring shaft 10 is fixed in the middle of the gear 11. The cross section of the stirring shaft 10 is cross-shaped. The gear 11 is meshed with the external gear ring 12, and the middle of the external gear ring 12 is fixed on the upper inner wall of the box groove 2.

[0028] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , specifically, the lower end of the fixed rod 7 is fixed with a connecting frame 13, and the other end of the connecting frame 13 is fixed with a convex block 14. The lower end of the drying oven 1 is fixed with a support plate 15. A screw rod 16 penetrates through the middle of the support plate 15. The upper side of the screw rod 16 is rotatably connected with a rotating disk 17. The lower end of the rotating disk 17 is fixed with a spring 18. The upper end of the screw rod 16 is detachably installed with a sieve plate 19 through internal threads.

[0029] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4, specifically, the outer surface of the bump 14 is slidably connected to the outer surface of the sieve plate 19. The bump 14 is hemispherical in shape, and the sieve plate 19 is V-shaped. The outer surface of the sieve plate 19 is slidably connected to the inner wall of the screening groove 3. A number of screening holes are provided in the middle of the sieve plate 19. The middle of the rotating disk 17 is rotatably connected to the upper side of the screw rod 16. One end of the spring 18 is fixed to the lower end of the rotating disk 17, and the other end of the spring 18 is fixed to the middle of the upper end of the support plate 15.

[0030] When the present utility model is in use: First, the driving motor 6 drives the fixed rod 7 to perform a rotating operation, so that the scraping frame 8 and the fixed frame 9 respectively fixed to the lower side and the upper side of the fixed rod 7 both perform a rotating operation centered on the fixed rod 7. The rotating fixed frame 9 drives the stirring shaft 10 rotatably connected to the other end to perform a revolving operation. The revolving stirring shaft 10 performs a rotating operation around its own central axis under the cooperation of the gear 11 fixed to the upper end and the external gear ring 12. Combined with the rotation of the scraping frame 8, the plastic particles in the box groove 2 can be fully stirred, achieving the effect of full stirring, avoiding the situation that the plastic particles generate a vortex phenomenon due to single stirring, resulting in insufficient drying, and thus achieving the effect of improving the use effect of the drying device. At the same time, the driving motor 6 drives the fixed rod 7 to perform a rotating operation, so that the connecting frame 13 fixed to the lower end of the fixed rod 7 performs a rotating operation. The rotating connecting frame 13 drives the bump 14 fixed to the other end to perform a rotating operation. The rotating bump 14 slides on the surface of the sieve plate 19 arranged in a V shape, so that the sieve plate 19 is driven by the extrusion of the bump 14 and under the stability of the screw rod 16 connected by threads to drive the screw rod 16 to move downward. The downward moving screw rod 16 compresses the spring 18 through the rotatably connected rotating disk 17, so that the spring 18 generates elastic support. When the bump 14 is away from the V-shaped protruding position of the sieve plate 19, the sieve plate 19 is driven to reset by the elastic force of the spring 18, thus completing the effect of vibrating screening. The effect of vibrating screening can be completed by relying on the single power of stirring, without the need to set up another power source for driving operation, and thus achieving the effect of reducing the use cost and manufacturing cost of the drying device.

[0031] Working principle: The driving motor 6 drives the fixed rod 7 to perform a rotating operation, so that the fixed rod 7 drives the fixed frame 9 and the scraping frame 8 to perform a rotating operation, achieving the effect of full stirring, avoiding the situation that the plastic particles generate a vortex phenomenon due to single stirring, resulting in insufficient drying, and thus achieving the effect of improving the use effect of the drying device. At the same time, the driving motor 6 drives the fixed rod 7 to perform a rotating operation, so that the connecting frame 13 fixed to the other end of the fixed rod 7 performs a rotating operation, achieving the effect of vibrating screening. The effect of vibrating screening can be completed by relying on the single power of stirring, without the need to set up another power source for driving operation, and thus achieving the effect of reducing the use cost and manufacturing cost of the drying device.

[0032] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A plastic pellet drying device for plastic production, comprising a drying oven (1), characterized in that: The drying box (1) has a box slot (2) on its upper side, and a screening slot (3) on its lower side. The box slot (2) and the screening slot (3) are connected via a control valve (4). A feed port (5) is provided on one side of the upper end of the box slot (2); A driving motor (6) is fixed to the middle of the upper end of the drying box (1); a fixing rod (7) is fixed to the driving end of the driving motor (6); a connecting structure is provided on the fixing rod (7); a stirring shaft (10) is provided on the connecting structure; the connecting structure can drive the stirring shaft (10) to rotate in a circumferential direction with its own central axis as the axis, and can also drive the stirring shaft (10) to rotate in a circumferential direction with the central axis of the fixing rod (7) as the axis, so as to fully stir the plastic particles in the box tank (2).

2. The plastic pellet drying device for plastic production according to claim 1, characterized in that: The connection structure comprises a scraper frame (8) and a fixed frame (9); the other end of the fixed frame (9) is rotatably connected to a stirring shaft (10); a gear (11) is fixed to the upper end of the stirring shaft (10); and the gear (11) is meshingly connected to an outer gear ring (12).

3. The plastic pellet drying device for plastic production according to claim 2, characterized in that: The middle part of the scraper (8) is fixed to the lower side of the fixed rod (7), the vertical section of the scraper (8) is U-shaped, the outer surface of the scraper (8) is rotatably connected to the inner wall of the box groove (2), and one end of the fixed frame (9) is fixed to the upper side of the fixed rod (7).

4. The plastic pellet drying device for plastic production according to claim 2, characterized in that: The other end of the fixing frame (9) is rotatably connected to the outer surface of the stirring shaft (10), the upper end of the stirring shaft (10) is fixed to the middle of the gear (11), the cross section of the stirring shaft (10) is cross-shaped, the gear (11) is meshed with the outer gear ring (12), and the middle of the outer gear ring (12) is fixed to the upper inner wall of the tank (2).

5. The plastic pellet drying device for plastic production according to claim 1, characterized in that: A connecting frame (13) is fixed to the lower end of the fixing rod (7), a convex block (14) is fixed to the other end of the connecting frame (13), a supporting plate (15) is fixed to the lower end of the drying box (1), a screw rod (16) passes through the middle of the supporting plate (15), a rotating disk (17) is rotatably connected to the upper side of the screw rod (16), a spring (18) is fixed to the lower end of the rotating disk (17), and a screen plate (19) is detachably mounted on the upper end of the screw rod (16) via an internal thread.

6. The plastic pellet drying device for plastic production according to claim 5, characterized in that: The outer surface of the protrusion (14) is slidably connected to the outer surface of the sieve plate (19); the protrusion (14) is hemispherical, the sieve plate (19) is V-shaped, the outer surface of the sieve plate (19) is slidably connected to the inner wall of the sieving groove (3), and a plurality of sieving holes are opened in the middle of the sieve plate (19).

7. The plastic pellet drying device for plastic production according to claim 5, characterized in that: The middle part of the rotating disk (17) is rotatably connected to the upper side of the screw rod (16), one end of the spring (18) is fixed to the lower end of the rotating disk (17), and the other end of the spring (18) is fixed to the middle part of the upper end of the support plate (15).

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