A drying device for plastic particle processing

Abstract

The application relates to the technical field of plastic particle processing, in particular to a drying device for plastic particle processing, which comprises a tank body, the inner side of the tank body is provided with a drying structure, the drying structure is connected with a sub-packaging structure, the top side of the tank body is provided with a driving structure, and the top end of the tank body is provided with a feeding structure; the plastic particles needing to be dried can be placed in layers through the drying structure, the heating efficiency of the plastic particles is improved, the plastic particles can be conveniently added and recycled through the sub-packaging structure, the rotation of the leveling rod can be conveniently controlled through the driving structure, the laying and collecting of the plastic particles are controlled, the caking phenomenon of the plastic particles during the adding process can be avoided through the feeding structure, and the uniform laying of the plastic particles is ensured.

Description

Technical Field

[0001] This invention relates to the field of plastic particle processing technology, specifically a drying apparatus for processing plastic particles. Background Technology

[0002] Plastic particles typically require drying before processing to remove surface and internal moisture, preventing defects such as bubbles and silver streaks during subsequent high-temperature molding processes like injection molding and extrusion. These defects negatively impact the appearance, mechanical properties, and dimensional stability of the finished product. Therefore, the drying process is a crucial step in plastic processing.

[0003] Currently, common methods for drying plastic particles mainly employ equipment such as hot air circulating ovens and dehumidifying dryers. These devices typically stack plastic particles in trays or hoppers, using hot air to heat the entire particle. However, in practical applications, plastic particles tend to clump together during stacking, resulting in uneven heating and low drying efficiency. Furthermore, the outer layers are often over-dried while the inner layers remain uncooked. Secondly, the feeding and discharging processes largely rely on manual or simple mechanical operations, resulting in low automation, high labor intensity, and a high risk of material spillage or residue. Thirdly, plastic particles are prone to clumping due to moisture during storage or transportation. When directly fed into the drying equipment, these lumpy materials are difficult for hot air to penetrate, further affecting the drying effect and uniformity. In addition, existing layered drying designs are often structurally complex, making material transfer between layers inconvenient and posing challenges for cleaning and maintenance. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a drying apparatus for processing plastic particles.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a drying device for processing plastic particles, including a tank, a drying structure provided on the inner side of the tank, a dispensing structure connected to the drying structure, a driving structure provided on the top side of the tank, and a feeding structure provided at the top of the tank.

[0006] Specifically, the drying structure includes drying trays, the tank body is cylindrical, multiple drying trays are fixedly connected to the inner side of the tank body, the dispensing structure includes leveling rods, the drying trays are fan-shaped, adjacent drying trays are offset by 90°, the side of the tank body has an air inlet, the top of the tank body has an exhaust port, the bottom of the tank body has a discharge port, the bottom of the tank body has a support frame fixedly connected to the bottom side of the tank body, the middle of the support frame is rotatably connected to a central shaft, the drying trays are rotatably connected to the central shaft, and multiple leveling rods are provided on the side of the central shaft.

[0007] Specifically, a drive gear is rotatably connected to the top side of the tank, and a first toothed ring is meshed with the side of the drive gear. The first toothed ring is fixedly connected to the top of the central shaft.

[0008] Specifically, the leveling rod is configured to correspond one-to-one with the baking tray. The leveling rod is rotatably connected to the side of the central shaft. A pusher block is fixedly connected to the middle of the leveling rod. The bottom side of the pusher block is slidably connected to the inner side of the baking tray. The side of the leveling rod is slidably connected to the top side of the baking tray.

[0009] Specifically, a baffle plate is rotatably connected to the inner side of the baking tray, the side of the baffle plate abuts against the end of the baking tray, and a torsion spring is fixedly connected between the end of the baffle plate and the baking tray.

[0010] Specifically, the drive structure includes an inner slide rod, which is slidably connected to the middle of the central shaft. The inner slide rod has multiple transverse sliding grooves on its side corresponding to the flat rod. A sliding block is fixedly connected to the end of the flat rod. The sliding block is eccentrically arranged and is slidably connected to the inner slide rod through the transverse sliding grooves.

[0011] Specifically, a traction block is rotatably connected to the top of the inner slide rod, the traction block is slidably connected to the tank body, a limiting groove is opened on the inner side of the tank body, the two sides of the traction block are slidably connected to the tank body through the limiting groove, a hydraulic rod is installed on the top side of the tank body, and the end of the hydraulic rod is fixedly connected to the traction block.

[0012] Specifically, the feeding structure includes a hopper, the top of the tank is fixedly connected to the hopper, the inner side of the hopper is a sloped structure, the middle of the hopper is rotatably connected to a crushing rod, and the bottom of the hopper is rotatably connected to a closing plate.

[0013] Specifically, a first bevel gear is fixedly connected to the end of the crushing rod, a second bevel gear meshes with the side of the first bevel gear, the second bevel gear is rotatably connected to the tank body, and a second toothed ring is fixedly connected to the top of the central shaft, with the second bevel gear and the second toothed ring meshing with each other.

[0014] Specifically, the end of the closing plate is rotatably connected to the tank body, the end of the closing plate is slidably connected to a release rod, the release rod is fixedly connected to the closing plate with a first spring, the side of the tank body is provided with a positioning arc groove, and the end of the release rod is engaged with the tank body through the positioning arc groove.

[0015] The beneficial effects of this invention are: (1) The drying device for processing plastic particles according to the present invention has a drying structure on the inner side of the tank and a dispensing structure connected to the drying structure. The drying structure can be used to place the plastic particles that need to be dried in layers to improve the heating efficiency of the plastic particles. The dispensing structure can be used to facilitate the addition and recycling of plastic particles.

[0016] (2) The drying device for processing plastic particles according to the present invention has a driving structure on the top side of the tank. The rotation of the flat rod can be easily controlled by the driving structure, thereby controlling the laying and collection of plastic particles.

[0017] (3) The drying device for processing plastic particles described in this invention has a feeding structure at the top of the tank. The feeding structure can prevent the plastic particles from clumping during the addition process and ensure the uniform distribution of the plastic particles. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the tank and the baking tray of the present invention; Figure 3 for Figure 2 The diagram shows an enlarged view of part A. Figure 4 This is a schematic diagram of the connection structure between the tank body and the central shaft of the present invention; Figure 5 This is a schematic diagram of the connection structure between the central shaft and the inner slide rod of the present invention; Figure 6 for Figure 5 The diagram shows an enlarged view of part B. Figure 7 This is a schematic diagram of the structure of the baking tray of the present invention; Figure 8 This is a schematic diagram of the connection structure between the support frame and the central shaft of the present invention; Figure 9 for Figure 8 The diagram shows an enlarged view of section C. Figure 10 This is a schematic diagram of the connection structure between the tank and the hopper of the present invention; Figure 11 for Figure 10 The diagram shows an enlarged view of part D.

[0020] In the diagram: 1. Tank body; 2. Drying structure; 201. Air inlet; 202. Exhaust outlet; 203. Discharge outlet; 204. Drying tray; 205. Central shaft; 206. Support frame; 207. First gear ring; 208. Drive gear; 3. Packaging structure; 301. Leveling rod; 302. Baffle plate; 303. Pushing block; 304. Torsion spring; 4. Feeding structure; 401. Hopper; 402. Crushing rod; 403. First bevel gear; 404. Second bevel gear; 405. Second gear ring; 406. Closing plate; 407. Release rod; 408. First spring; 409. Positioning arc groove; 5. Drive structure; 501. Hydraulic rod; 502. Traction block; 503. Limiting slide groove; 504. Inner slide rod; 505. Sliding column block; 506. Horizontal slide groove. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] like Figure 2 , Figure 3 , Figure 6 , Figure 9 As shown, the drying device for processing plastic particles according to the present invention includes a tank 1, a drying structure 2 is provided on the inner side of the tank 1, a dispensing structure 3 is connected to the drying structure 2, a driving structure 5 is provided on the top side of the tank 1, and a feeding structure 4 is provided at the top of the tank 1.

[0023] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 As shown, the drying structure 2 includes a drying tray 204, the tank 1 has a cylindrical structure, and multiple drying trays 204 are fixedly connected to the inner side of the tank 1. The dispensing structure 3 includes a leveling rod 301, the drying trays 204 have a fan-shaped structure, and adjacent drying trays 204 are deflected by 90°. An air inlet 201 is provided on the side of the tank 1, an exhaust port 202 is provided at the top of the tank 1, and a discharge port 203 is provided at the bottom of the tank 1. A support frame 206 is fixedly connected to the bottom of the tank 1, and a central shaft 205 is rotatably connected to the middle of the support frame 206. The drying trays 204 are rotatably connected to the central shaft 205. Multiple leveling rods 301 are provided on the side of the central shaft 205. A drive gear 208 is rotatably connected to the top of the tank 1. A first gear ring 207 meshes with the side of the drive gear 208, and the first gear ring 207 is fixedly connected to the top of the central shaft 205. During the drying process of plastic particles, after the plastic particles are added to the topmost drying tray 204, the drive gear 208 is rotated by a motor, causing the central shaft 205 located in the middle of the tank 1 to rotate under the transmission effect of the first gear ring 207. Multiple leveling rods 301 are located on the side of the central shaft 205 corresponding to the drying tray 204. As the leveling rods 301 rotate with the central shaft 205, they flatten the added plastic particles into the drying tray 204. Excess plastic particles fall through the notch on the side of the drying tray 204 into another drying tray 204, and the leveling action is repeated by the corresponding leveling rods 301 until... All the drying trays 204 are evenly covered with plastic particles to be dried, which can quickly complete the addition of plastic particles to be dried and improve processing efficiency. On the other hand, a discharge port 203 is provided on the bottom side of the tank body 1 for the recycling of excess plastic particles or dried plastic particles. At the same time, an air inlet 201 is provided on the bottom side of the tank body 1 and an exhaust port 202 is provided on the top side of the tank body 1. By introducing hot air into the air inlet 201, the hot air flows from the bottom side to the top side and heats the plastic particles. Combined with the layered arrangement of the drying trays 204, the plastic particles are heated more evenly, ensuring good drying efficiency while avoiding overheating.

[0024] Specifically, such as Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 9 As shown, the leveling rod 301 and the baking tray 204 are arranged in a one-to-one correspondence. The leveling rod 301 is rotatably connected to the side of the central shaft 205. A pusher block 303 is fixedly connected to the middle of the leveling rod 301. The bottom side of the pusher block 303 is slidably connected to the inner side of the baking tray 204. The side of the leveling rod 301 is slidably connected to the top side of the baking tray 204. A baffle plate 302 is rotatably connected to the inner side of the baking tray 204. The side of the baffle plate 302 abuts against the end of the baking tray 204. A torsion spring 304 is fixedly connected between the end of the baffle plate 302 and the baking tray 204. After the operator adds the plastic particles, a baffle plate 302 is installed on the side of the drying tray 204. A torsion spring 304 connects the baffle plate 302 and the drying tray 204, allowing the baffle plate 302 to prevent plastic particles below a certain thickness from spilling, thus ensuring that the drying tray 204 is fully covered with plastic particles. After the plastic particles are dried, for easy recycling, the leveling rod 301 can rotate with the central shaft 205. At the same time, a pusher block 303 is fixedly connected to the middle of the leveling rod 301. When the pusher block 303 moves to the position directly below the leveling rod 301 by rotating 301, the pusher block 303 on the bottom side of the leveling rod 301 will rotate along the surface of the drying tray 204 and push the dried plastic particles toward one side of the baffle plate 302 until all the plastic particles are pushed from the notch of the drying tray 204 to the next layer of the drying tray 204. Repeating this step will push all the plastic particles on the drying tray 204 to the bottom discharge port 203 for collection.

[0025] Specifically, such as Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 9 As shown, the drive structure 5 includes an inner slide rod 504. The inner slide rod 504 is slidably connected to the middle of the central shaft 205. The side of the inner slide rod 504 is provided with multiple horizontal sliding grooves 506 corresponding to the flat rod 301. The end of the flat rod 301 is fixedly connected to a sliding block 505. The sliding block 505 is eccentrically set. The sliding block 505 is slidably connected to the inner slide rod 504 through the horizontal sliding grooves 506. The top of the inner slide rod 504 is rotatably connected to a traction block 502. The traction block 502 is slidably connected to the tank body 1. The inner side of the tank body 1 is provided with a limiting sliding groove 503. The two sides of the traction block 502 are slidably connected to the tank body 1 through the limiting sliding grooves 503. A hydraulic rod 501 is installed on the top side of the tank body 1. The end of the hydraulic rod 501 is fixedly connected to the traction block 502. The traction block 502 is driven by the hydraulic rod 501 at the top, controlling the traction block 502 to slide vertically within the limiting slide groove 503. Multiple horizontal slide grooves 506 are provided on the side of the inner slide rod 504 corresponding to the flat rod 301. The sliding column block 505 at the end of the flat rod 301 slides within the corresponding horizontal slide groove 506. When the traction block 502 pulls the inner slide rod 504 to slide, the sliding column block 505 will slide within the horizontal slide groove 506 and simultaneously drive the flat rod 301 to rotate. This allows for quick adjustment of the orientation of the pusher blocks 303 on all the flat rods 301 as needed. That is, when the pusher block 303 is in a horizontal state, it is used to lay plastic particles; when the pusher block 303 is in a vertical state, it is used to collect plastic particles, making it convenient to use.

[0026] Specifically, such as Figure 2 , Figure 4 , Figure 9 , Figure 10 , Figure 11 As shown, the feeding structure 4 includes a hopper 401, which is fixedly connected to the top of the tank body 1. The inner side of the hopper 401 is a sloping structure. A crushing rod 402 is rotatably connected to the middle of the hopper 401. A closing plate 406 is rotatably connected to the bottom of the hopper 401. A first bevel gear 403 is fixedly connected to the end of the crushing rod 402. A second bevel gear 404 meshes with the side of the first bevel gear 403. The second bevel gear 404 is rotatably connected to the tank body 1. The central shaft... A second toothed ring 405 is fixedly connected to the top of 205. The second bevel gear 404 meshes with the second toothed ring 405. The end of the closing plate 406 is rotatably connected to the tank body 1. A release rod 407 is slidably connected to the end of the closing plate 406. A first spring 408 is fixedly connected between the release rod 407 and the closing plate 406. A positioning arc groove 409 is opened on the side of the tank body 1. The end of the release rod 407 is engaged with the tank body 1 through the positioning arc groove 409. When the central shaft 205 rotates, the second toothed ring 405 on its side will drive the crushing rod 402 to rotate through the first bevel gear 403 and the second bevel gear 404, thereby achieving the effect of crushing agglomerated plastic particles and preventing the input plastic particles from sticking together and affecting the drying effect. On the other hand, a rotatable closing plate 406 is provided on the bottom side of the hopper 401. The user can stop feeding by sliding the release rod 407 on the outer part of the closing plate 406 located on the tank body 1, so that the release rod 407 slides to the other end through the positioning arc groove 409 and engages, which is convenient for operation.

[0027] In use, this invention firstly involves multiple drying trays 204 arranged inside the cylindrical tank 1. Each drying tray 204 has a fan-shaped structure with an opening on one side, and adjacent trays 204 are offset at a certain angle. During the drying process of the plastic particles, the plastic particles are added to the topmost drying tray 204. A motor drives a drive gear 208 to rotate, causing the central shaft 205 located in the middle of the tank 1 to rotate under the transmission effect of the first gear ring 207. Multiple leveling rods 301 are arranged on the side of the central shaft 205 corresponding to the drying trays 204. As the leveling rods 301 rotate with the central shaft 205, they flatten the added plastic particles into the drying trays 204, while excess plastic particles are removed by the drying trays. The plastic particles fall through the notch on the side of tray 204 into another drying tray 204, and continue to be leveled by the corresponding leveling rod 301 until all drying trays 204 are evenly covered with plastic particles to be dried. This quickly completes the addition of plastic particles to be dried, improving processing efficiency. On the other hand, a discharge port 203 is provided on the bottom side of the tank 1 for recycling excess added plastic particles or dried plastic particles. At the same time, an air inlet 201 is provided on the bottom side of the tank 1, and an exhaust port 202 is provided on the top side of the tank 1. By introducing hot air into the air inlet 201, the hot air flows from the bottom to the top and heats the plastic particles. Combined with the layered arrangement of the drying trays 204, the plastic particles are heated more evenly, ensuring good drying effect. To ensure high efficiency and prevent overheating, a baffle plate 302 is installed on the side of the drying tray 204 after the operator adds the plastic particles. A torsion spring 304 connects the baffle plate 302 and the drying tray 204, preventing plastic particles below a certain thickness from spilling and ensuring that the drying tray 204 is fully covered with plastic particles. After the plastic particles are dried, the leveling rod 301 can rotate with the central shaft 205 for easy recycling. A pusher block 303 is fixedly connected to the middle of the leveling rod 301. When the leveling rod 301 rotates, causing the pusher block 303 to move directly below the leveling rod 301, the leveling rod 301 rotates with the central shaft 205. The bottom pusher block 303 rotates along the surface of the drying tray 204 and pushes the dried plastic particles toward one side of the baffle plate 302 until all the plastic particles are pushed from the notch of the drying tray 204 onto the next layer of drying tray 204. Repeating this step pushes all the plastic particles on the drying tray 204 to the bottom discharge port 203 for collection. An inner slide rod 504 is slidably connected to the inner side of the central shaft 205. A traction block 502 is rotatably connected to the top of the inner slide rod 504. The traction block 502 is driven by the hydraulic rod 501 at the top, controlling the traction block 502 to slide vertically within the limiting slide groove 503. Multiple horizontal slide grooves 506 are provided on the side of the inner slide rod 504 corresponding to the flat rod 301.The sliding block 505 at the end of the leveling rod 301 slides within the corresponding horizontal sliding groove 506. When the traction block 502 pulls the inner sliding rod 504 to slide, the sliding block 505 slides within the horizontal sliding groove 506 and simultaneously drives the leveling rod 301 to rotate. This allows for quick adjustment of the orientation of the push blocks 303 on all the leveling rods 301 as needed. When the push blocks 303 are horizontal, they are used to lay out the plastic particles; when they are vertical, they are used to collect the plastic particles, facilitating use. A hopper 401 is fixed at the top of the tank 1 for adding plastic particles. A rod is rotatably connected to the middle of the hopper 401. The crushing rod 402 has a toothed structure on its side. When the central shaft 205 rotates, the second toothed ring 405 on its side drives the crushing rod 402 to rotate via the first bevel gear 403 and the second bevel gear 404, thereby achieving the effect of crushing agglomerated plastic particles and preventing the input plastic particles from sticking together and affecting the drying effect. On the other hand, a rotatable closing plate 406 is provided on the bottom side of the hopper 401. The user can stop feeding by sliding the release rod 407 located on the outer part of the closing plate 406, which slides through the positioning arc groove 409 to the other end and engages, making operation convenient.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying apparatus for processing plastic particles, characterized in that, Includes a tank (1), the inner side of which is provided with a drying structure (2), the drying structure (2) is connected to a dispensing structure (3), the dispensing structure (3) includes a flat rod (301); The drying structure (2) includes a drying tray (204), the tank (1) is cylindrical, and multiple drying trays (204) are fixedly connected to the inner side of the tank (1). The drying trays (204) are fan-shaped, and adjacent drying trays (204) are offset by 90°. An air inlet (201) is provided on the side of the tank (1), an exhaust port (202) is provided at the top of the tank (1), and a discharge port (203) is provided at the bottom of the tank (1). A support frame (206) is fixedly connected to the bottom of the tank (1), and a central shaft (205) is rotatably connected to the middle of the support frame (206). The drying trays (204) are rotatably connected to the central shaft (205), and multiple flat rods (301) are provided on the side of the central shaft (205).

2. The drying apparatus for processing plastic particles according to claim 1, characterized in that: The top side of the tank (1) is rotatably connected to a drive gear (208), and the side of the drive gear (208) is meshed with a first toothed ring (207), which is fixedly connected to the top of the central shaft (205).

3. The drying apparatus for processing plastic particles according to claim 1, characterized in that: The leveling rod (301) is set in a one-to-one correspondence with the baking tray (204). The leveling rod (301) is rotatably connected to the side of the central shaft (205). A pusher block (303) is fixedly connected to the middle of the leveling rod (301). The bottom side of the pusher block (303) is slidably connected to the inner side of the baking tray (204). The side of the leveling rod (301) is slidably connected to the top side of the baking tray (204).

4. The drying apparatus for processing plastic particles according to claim 3, characterized in that: A baffle plate (302) is rotatably connected to the inner side of the baking tray (204). The side of the baffle plate (302) abuts against the end of the baking tray (204). A torsion spring (304) is fixedly connected between the end of the baffle plate (302) and the baking tray (204).

5. A drying apparatus for processing plastic particles according to claim 1, characterized in that: The top side of the tank (1) is provided with a driving structure (5), the driving structure (5) includes an inner slide rod (504), the middle part of the central shaft (205) is slidably connected to the inner slide rod (504), the side of the inner slide rod (504) is provided with a plurality of transverse sliding grooves (506) corresponding to the flat rod (301), the end of the flat rod (301) is fixedly connected to a sliding block (505), the sliding block (505) is eccentrically set, and the sliding block (505) is slidably connected to the inner slide rod (504) through the transverse sliding grooves (506).

6. The drying apparatus for processing plastic particles according to claim 5, characterized in that: The top of the inner slide bar (504) is rotatably connected to a traction block (502), and the traction block (502) is slidably connected to the tank body (1). A limiting groove (503) is provided on the inner side of the tank body (1). The two sides of the traction block (502) are slidably connected to the tank body (1) through the limiting groove (503). A hydraulic rod (501) is installed on the top side of the tank body (1), and the end of the hydraulic rod (501) is fixedly connected to the traction block (502).

7. The drying apparatus for processing plastic particles according to claim 1, characterized in that: The top of the tank (1) is provided with a feeding structure (4), the feeding structure (4) includes a hopper (401), the top of the tank (1) is fixedly connected to the hopper (401), the inner side of the hopper (401) is a slope structure, the middle of the hopper (401) is rotatably connected to a crushing rod (402), and the bottom of the hopper (401) is rotatably connected to a closing plate (406).

8. A drying apparatus for processing plastic particles according to claim 7, characterized in that: The end of the crushing rod (402) is fixedly connected to a first bevel gear (403), and a second bevel gear (404) meshes with the side of the first bevel gear (403). The second bevel gear (404) is rotatably connected to the tank body (1). The top of the central shaft (205) is fixedly connected to a second toothed ring (405), and the second bevel gear (404) and the second toothed ring (405) mesh with each other.

9. A drying apparatus for processing plastic particles according to claim 8, characterized in that: The end of the closing plate (406) is rotatably connected to the tank body (1). The end of the closing plate (406) is slidably connected to a release rod (407). A first spring (408) is fixedly connected between the release rod (407) and the closing plate (406). A positioning arc groove (409) is provided on the side of the tank body (1). The end of the release rod (407) is engaged with the tank body (1) through the positioning arc groove (409).

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