A multi-stage vacuum drying system for PET chips

Abstract

The utility model relates to vacuum drying technical field especially, relates to a kind of multistage vacuum drying system of PET chip. Its main aim at moisture is easy to accumulate in the stacking position of PET chip, it is inconvenient to dry completely, need to move again drying, to affect drying efficiency problem, propose the following technical scheme including vacuum drying oven, the door panel is abutted in the vacuum drying oven opening position, the vacuum drying oven inside is provided with placing table, and the fixed rail is fixedly connected in the placing table top. The utility model motor drives eccentric wheel rotation, to drive placing table to lift in the vacuum drying oven inside, let placing table rely on mounting rod and sliding block in the mode of sliding groove inside sliding control placing table lift vibration, and spring and telescopic link can assist the amplitude of sliding block in the sliding groove inside sliding, to avoid the abrasion of the sticking position of placing table and eccentric wheel, realize the effect of side screening side drying, improve the drying efficiency of PET chip.

Description

Technical Field

[0001] This utility model relates to the field of vacuum drying technology, and in particular to a multi-stage vacuum drying system for PET slices. Background Technology

[0002] Vacuum drying is a drying technology that lowers the boiling point of water by reducing environmental pressure and accelerates the evaporation of moisture at low temperatures. Its core principle is to use pressure difference or concentration difference to diffuse the moisture inside the material to the surface, and remove the moisture by heating or freezing sublimation in a vacuum environment. PET chips require systematic drying equipment during production.

[0003] Existing vacuum drying systems use a drying oven to dry PET chips. In use, the box containing the PET chips is placed into the drying oven for vacuum drying. The gas inside the drying oven is evacuated by extracting the gas, thereby removing the moisture from the surface of the PET chips.

[0004] However, in existing PET chips, the chips are positioned in a fixed position during drying, causing moisture to accumulate at the stacked areas, hindering complete drying and requiring repeated turning and drying, thus affecting drying efficiency. Therefore, this invention proposes a multi-stage vacuum drying system for PET chips. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art where the position of PET slices is fixed, moisture tends to accumulate at the stacking position of the PET slices, making it inconvenient to dry completely and requiring them to be turned over and dried again, thus affecting the drying efficiency. The invention proposes a multi-stage vacuum drying system for PET slices.

[0006] The technical solution of this utility model is: a multi-stage vacuum drying system for PET chips, including a vacuum drying chamber, the opening of which is abutted by a door panel, a placement platform is provided inside the vacuum drying chamber, a fixed rail is fixedly connected to the top of the placement platform, and an eccentric wheel is abutted at the bottom of the placement platform. There are two sets of eccentric wheels arranged symmetrically. A connecting rod is fixedly connected to one side of the eccentric wheel, and a motor is fixedly connected to the outside of the vacuum drying oven. The output end of the motor is fixedly connected to one of the eccentric wheels on the side away from the connecting rod. Another set of eccentric wheels is fixedly connected to a rotating shaft on the side away from the connecting rod. A connecting sleeve is rotatably connected to the outside of the rotating shaft away from the eccentric wheel. The end of the connecting sleeve away from the rotating shaft is fixedly connected to the inside of the vacuum drying oven.

[0007] Optionally, mounting rods are fixedly connected to both ends of the placement platform, and a sliding groove is provided on the opposite side of the vacuum drying oven and the door panel, with the mounting rods slidably connected inside the sliding groove.

[0008] Optionally, a sliding block abuts against the outside of the mounting rod, a spring is fixedly connected to a side of the sliding block away from the mounting rod, and one end of the spring away from the sliding block is fixedly connected to the inside of the sliding groove.

[0009] Optionally, a telescopic rod is fixedly connected to a side of the sliding block close to the spring, one end of the telescopic rod away from the sliding block is fixedly connected to the inside of the sliding groove, and the telescopic rod is arranged inside the spring.

[0010] Optionally, an embedding groove is formed on the vacuum drying oven at a position close to the door panel, an embedding ring is slidably connected inside the embedding groove, and one end of the embedding ring is fixedly connected to a side of the door panel close to the vacuum drying oven.

[0011] Optionally, a telescopic rotating structure is fixedly connected to the outside of the door panel, a position of the telescopic rotating structure away from the door panel is fixedly connected to the outside of the vacuum drying oven, and the telescopic rotating structure is used for controlling stretching and rotation of the door panel.

[0012] Optionally, the sliding block is arranged in a U shape, and edges of an opening of the sliding block are arranged as rounded corners.

[0013] Optionally, the fixing rail is arranged in a U-shaped opening shape, and the opening of the fixing rail is arranged in a convex shape.

[0014] In conclusion, the present application includes at least one of the following beneficial technical effects: The utility model adopts a motor to drive an eccentric wheel to rotate, thereby driving a placing table to lift inside the vacuum drying oven, then controls the placing table to lift and vibrate by means of the sliding of the placing table in the sliding groove through the mounting rod and the sliding block, the spring and the telescopic rod can assist the sliding amplitude of the sliding block in the sliding groove, thereby avoiding the wear at the bonding position of the placing table and the eccentric wheel, realizing the effect of drying while sieving, and improving the drying efficiency of PET slices. Description of Drawings

[0015] Figure 1 A structural schematic diagram of a multi-stage vacuum drying system for PET slices is given; Figure 2 is Figure 1 a sectional structural schematic diagram of; Figure 3 is Figure 2 an enlarged schematic diagram of position A in; Figure 4 is a sectional structural schematic diagram of a vacuum drying oven; Figure 5 is Figure 4 an enlarged schematic diagram of position B in; Figure 6 is a sectional structural schematic diagram of a door panel; Figure 7 for Figure 6 Enlarged diagram of point C in the middle.

[0016] Figure label: 1. Vacuum drying oven; 2. Door panel; 3. Placement platform; 4. Fixed rail; 5. Eccentric wheel; 6. Connecting rod; 7. Rotating shaft; 8. Connecting sleeve; 9. Motor; 10. Mounting rod; 11. Sliding block; 12. Spring; 13. Telescopic rod; 14. Embedded groove; 15. Embedded ring; 16. Sliding groove. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0018] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0019] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Example like Figures 1 to 4 As shown, the multi-stage vacuum drying system for PET slices provided by the present utility model comprises a vacuum drying box 1, a door plate 2 is in abutting connection with an opening of the vacuum drying box 1, a placing table 3 is arranged inside the vacuum drying box 1, and a fixing rail 4 is fixedly connected to the top of the placing table 3, so that a box containing PET slices can be placed on the top of the placing table 3 along the fixing rail 4 for fixing. Eccentric wheels 5 are in abutting connection with the bottom of the placing table 3, two groups of the eccentric wheels 5 are symmetrically arranged, and rotation of the eccentric wheels 5 can drive the placing table 3 to fluctuate and vibrate inside the vacuum drying box 1; a connecting rod 6 is fixedly connected to opposite sides of the eccentric wheels 5, and the connecting rod 6 can connect the two eccentric wheels 5. A motor 9 is fixedly connected to the outside of the vacuum drying box 1, an output end of the motor 9 is fixedly connected to a side, away from the connecting rod 6, of one of the eccentric wheels 5, and the motor 9 can drive the two eccentric wheels 5 to rotate; a rotating shaft 7 is fixedly connected to a side, away from the connecting rod 6, of the other group of eccentric wheels 5, a connecting sleeve 8 is rotatably connected to a position, outside the rotating shaft 7, away from the eccentric wheels 5, the eccentric wheels 5 rotate inside the connecting sleeve 8 by means of the rotating shaft 7, and an end, away from the rotating shaft 7, of the connecting sleeve 8 is fixedly connected to the inside of the vacuum drying box 1, and the connecting sleeve 8 provides supporting force for the rotating shaft 7 inside the vacuum drying box 1. The fixing rail 4 is arranged in a U-shaped opening shape, the opening of the fixing rail 4 facilitates fixing of the box containing PET slices, the opening of the fixing rail 4 is arranged in a convex shape, and the structure of the fixing rail 4 enables more stable fixing effect on the box containing PET slices.

[0023] Further, please refer to Figures 4 to 7 , two ends of the placing table 3 are fixedly connected with mounting rods 10, sliding grooves 16 are formed on opposite sides of the vacuum drying box 1 and the door plate 2, the mounting rods 10 are slidably connected inside the sliding grooves 16, and the placing table 3 moves inside the connecting rod 6 by means of the mounting rods 10, so as to control the placing table 3 to stably move up and down inside the vacuum drying box 1. A sliding block 11 is in abutting connection with the outside of the mounting rod 10, the sliding block 11 can control the mounting rod 10 not to deviate during sliding, a spring 12 is fixedly connected to a side, away from the mounting rod 10, of the sliding block 11, an end, away from the sliding block 11, of the spring 12 is fixedly connected inside the sliding groove 16, and the spring 12 can control the sliding block 11 to slide inside the sliding groove 16. The sliding block 11 is arranged in a U shape, the shape of the sliding block 11 facilitates mounting of the mounting rod 10 inside the sliding block 11, edges of an opening of the sliding block 11 are arranged with rounded corners, and the rounded corners of the sliding block 11 prevent wear when the mounting rod 10 is mounted inside the sliding block 11.

[0024] Still further, please refer to Figures 4 to 7A telescopic rod 13 is fixedly connected to the sliding block 11 near the spring 12. The end of the telescopic rod 13 away from the sliding block 11 is fixedly connected to the inside of the sliding groove 16. The telescopic rod 13 can extend and retract inside the sliding groove 16. The telescopic rod 13 is set inside the spring 12 and can assist the spring 12 in extending and retracting together. An embedded groove 14 is opened near the door panel 2 of the vacuum drying oven 1. An embedded ring 15 is slidably connected inside the embedded groove 14. The embedded ring 15 can slide and be positioned inside the embedded groove 14. One end of the embedded ring 15 is fixedly connected to the side of the door panel 2 near the vacuum drying oven 1. The movement of the door panel 2 can drive the embedded ring 15 to disengage from the embedded groove 14, thereby opening the door panel 2. A telescopic rotating structure is fixedly connected to the outside of the door panel 2. The telescopic rotating structure is fixedly connected to the outside of the vacuum drying oven 1 at a position away from the door panel 2. The telescopic rotating structure can first extend and then rotate. The telescopic rotating structure is used to control the extension and rotation of the door panel 2.

[0025] In this embodiment, when drying PET slices, the door panel 2 can be stretched first by the telescopic rotating structure, so that the door panel 2 drives the embedded ring 15 to disengage from the embedded groove 14. Then, the telescopic rotating structure can be used to rotate, so that the door panel 2 can be opened. The box containing the PET slices can then be slid into the placement platform 3, so that the PET slices are placed on the top of the placement platform 3. Then, the door panel 2 can be rotated to a suitable position by the rotating stretching structure, and then the door panel 2 can be pushed towards the vacuum drying chamber 1, so that the door panel 2 drives the embedded ring 15 to be embedded into the embedded groove 14, thereby closing and sealing the vacuum drying chamber 1. After sealing, the PET slices can be vacuum dried.

[0026] During vacuum drying, the motor 9 is started, which drives the eccentric wheel 5 to rotate. The two eccentric wheels 5 can rotate synchronously through the connection of the connecting rod 6. When the eccentric wheel 5 rotates, it is supported and rotated inside the connecting sleeve 8 through the rotating shaft 7. This can push the placement table 3 to move up and down. When the placement table 3 moves up and down, the placement table 3 relies on the mounting rod 10 to drive the sliding block 11 to slide up and down inside the sliding groove 16.

[0027] When the sliding block 11 slides up and down, the telescopic rod 13 and the spring 12 can push the sliding block 11 to drive the mounting rod 10 to move up and down inside the sliding groove 16, thereby avoiding excessive impact force of the placement table 3 on the eccentric wheel 5, thus playing the role of auxiliary support and vibration separation of PET slices. After drying, the PET slices can be taken out from the vacuum drying oven 1 by opening the vacuum drying oven 1.

[0028] It should be noted that this system uses a motor 9 to drive the eccentric wheel 5 to rotate, thereby causing the placement table 3 to rise and fall inside the vacuum drying oven 1. The placement table 3 is then controlled by the sliding of the mounting rod 10 and the sliding block 11 within the sliding groove 16. The spring 12 and the telescopic rod 13 can assist the sliding block 11 in the sliding groove 16, thereby avoiding wear at the contact point between the placement table 3 and the eccentric wheel 5, achieving the effect of simultaneous sieving and drying, and improving the drying efficiency of PET chips.

[0029] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multi-stage vacuum drying system for PET chips, comprising a vacuum drying chamber (1), wherein the opening of the vacuum drying chamber (1) abuts against a door panel (2), characterized in that: A placing table (3) is arranged inside the vacuum drying oven (1), a fixed rail (4) is fixedly connected to the top of the placing table (3), and eccentric wheels (5) are abutted against the bottom of the placing table (3), wherein there are two groups of the eccentric wheels (5) symmetrically arranged; a connecting rod (6) is fixedly connected to the opposite side of the eccentric wheels (5), a motor (9) is fixedly connected to the outside of the vacuum drying oven (1), and an output end of the motor (9) is fixedly connected to a side, far away from the connecting rod (6), of one of the eccentric wheels (5); a rotating shaft (7) is fixedly connected to a side, far away from the connecting rod (6), of the other group of the eccentric wheels (5), a connecting sleeve (8) is rotatably connected to a position, far away from the eccentric wheel (5), outside the rotating shaft (7), and one end, far away from the rotating shaft (7), of the connecting sleeve (8) is fixedly connected to the inside of the vacuum drying oven (1); mounting rods (10) are fixedly connected to two ends of the placing table (3), sliding grooves (16) are formed in opposite sides of the vacuum drying oven (1) and a door panel (2), the mounting rods (10) are slidably connected inside the sliding grooves (16), sliding blocks (11) are abutted against the outside of the mounting rods (10), springs (12) are fixedly connected to a side, far away from the mounting rods (10), of the sliding blocks (11), one ends, far away from the sliding blocks (11), of the springs (12) are fixedly connected inside the sliding grooves (16), telescopic rods (13) are fixedly connected to a side, close to the springs (12), of the sliding blocks (11), one ends, far away from the sliding blocks (11), of the telescopic rods (13) are fixedly connected inside the sliding grooves (16), and the telescopic rods (13) are arranged inside the springs (12).

2. The multi-stage vacuum drying system for PET chips according to claim 1, characterized in that, an embedding groove (14) is formed in a position, close to the door panel (2), of the vacuum drying oven (1), an embedding ring (15) is slidably connected inside the embedding groove (14), and one end of the embedding ring (15) is fixedly connected to a side, close to the vacuum drying oven (1), of the door panel (2).

3. The multi-stage vacuum drying system for PET chips according to claim 2, characterized in that, a telescopic rotating structure is fixedly connected to the outside of the door panel (2), a position, far away from the door panel (2), of the telescopic rotating structure is fixedly connected to the outside of the vacuum drying oven (1), and the telescopic rotating structure is used for controlling stretching and rotation of the door panel (2).

4. The multi-stage vacuum drying system for PET chips according to claim 1, characterized in that, the sliding block (11) is arranged in a U shape, and an edge of an opening of the sliding block (11) is provided with rounded corners.

5. The multi-stage vacuum drying system for PET chips according to claim 1, characterized in that, the fixed rail (4) is arranged in a U-shaped opening shape, and an opening of the fixed rail (4) is arranged in a convex shape.

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