PET slice drying device

Abstract

A PET slice drying device relates to the technical field of PET slice production equipment and comprises a bottom plate and a drying mechanism, the drying mechanism comprises a drying part and a telescopic part which are rotatably mounted on a base, a rotating part rotatably mounted in the drying part and a driving part mounted on the drying part, the drying part and the telescopic part rotate in the vertical direction, and the driving part drives the drying part to rotate in the vertical direction. The drying part is rotationally connected with the telescopic end of the telescopic part, an air inlet pipe is arranged between the inner side and the outer side of the drying part, the interior of the rotating part is hollow and communicates with the exterior of the drying part, and the power output end of the driving part freely penetrates through the drying part and then is connected with the rotating part; pET slices are poured into the rotating part, then hot air is introduced into the drying part through the air inlet pipe, the driving part is started to drive the rotating part to rotate, so that the PET slices are synchronously overturned and dried in the rotating part, and after drying is finished, the drying part is driven to rotate through the telescopic part, so that the communicating position of the rotating part and the exterior of the drying part rotates towards the bottom plate; therefore, the PET slices in the rotating part are poured out.

Description

Technical Field

[0001] The utility model relates to the technical field of PET chip production equipment, and particularly relates to a PET chip drying device. Background Art

[0002] The PET raw materials obtained by polymerization production are generally processed into sheet-like particles about 4*5*2 mm, commonly known as PET chips, which are mainly used as production raw materials in fields such as fibers, various containers, packaging materials, films, films, and engineering plastics. In the production process of polyester, PET chips need to be melted at a high temperature of about 290°C. At this high temperature, if the moisture content of the chips reaches a certain level (such as above 100 ppm), the melt will undergo hydrolysis, resulting in a decrease in the melt quality, making it difficult for the spinning process to proceed smoothly or even leading to a decrease in the quality of the finished yarn. Therefore, drying PET is crucial.

[0003] In the Chinese utility model patent with the authorization publication number CN214582206U, a PET chip drying device is disclosed. By connecting a container for holding PET chips with a swinging assembly, the swinging assembly specifically includes a fixed frame and a rocker arm group. The container is fixed inside the fixed frame, and the rocker arm swings by connecting a driving assembly, thereby driving the fixed frame to swing and continuously jolting the PET chips inside the container.

[0004] Although the above patent can dry PET chips, since the PET chips are stacked in the container, although a swinging assembly is provided in the above patent to drive the container to swing, the swinging of the container can only cause the PET chips located above the container to move together with the container, while the PET chips located at the bottom of the container still stack at the bottom of the container and cannot move, resulting in different heating degrees of the PET chips in the upper and lower parts of the container, thus affecting the drying efficiency. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a PET chip drying device, which solves the problems of uneven heating and low drying efficiency of PET chips in the drying device in the prior art.

[0006] A PET chip drying device includes:

[0007] A bottom plate, and

[0008] Drying mechanism, which includes a drying part and a telescopic part rotatably installed on a base, a rotating part rotatably installed inside the drying part, and a driving part installed on the drying part. The drying part and the telescopic part both rotate in the vertical direction, and the telescopic end of the drying part is rotatably connected to the telescopic part. An air inlet pipe is provided between the inner and outer sides of the drying part. The inside of the rotating part is hollow and communicates with the outside of the drying part. The power output end of the driving part freely passes through the drying part and is connected to the rotating part.

[0009] Compared with the prior art, the utility model has the following beneficial effects: When in use, pour the PET chips to be dried into the rotating part from the connection between the rotating part and the outside of the drying part, then pass hot air into the drying part through the air inlet pipe, and then start the driving part to drive the rotating part to rotate, so that the PET chips are synchronously turned and dried in the rotating part. After drying, drive the drying part to rotate through the telescopic part, so that the connection between the rotating part and the outside of the drying part faces the bottom plate to pour out the PET chips in the rotating part, and then drive the drying part to reset through the telescopic part, and then repeat the above operation to continue drying; The operation is simple and convenient, the PET chips can be quickly dried, and all the PET chips can be driven to turn during the rotation of the rotating part, so that all the PET chips can be scattered and not piled up, ensuring that each PET chip is evenly heated and improving the drying efficiency.

[0010] Preferably, a rotating frame is fixedly installed on the upper part of the base. The rotating frame is of a U-shaped structure. The drying part includes a drying cylinder arranged horizontally. One end of the bottom of the drying cylinder is rotatably installed between the two opposite inner walls of the rotating frame through a rotating shaft. The rotating part is rotatably installed inside the drying cylinder. The air inlet pipe is vertically and fixedly connected and installed on the side wall of the drying cylinder. The driving part is installed on the outer wall of the bottom of the drying cylinder. The telescopic end of the telescopic part is rotatably connected to the side wall of one end of the drying cylinder opening.

[0011] Preferably, the rotating part includes a rotating cylinder rotatably installed coaxially inside the drying cylinder. The power output end of the driving part freely passes through the drying cylinder and is fixedly connected to the rotating cylinder.

[0012] Preferably, a plurality of rotating rings are fixedly sleeved on the outer wall of the rotating cylinder along its axial direction. Each rotating ring is rotatably connected to the inner wall of the drying cylinder.

[0013] Preferably, the diameters of the openings of the drying cylinder and the rotating cylinder are both smaller than the diameters of their bottoms, and the outer wall of the opening of the rotating cylinder is rotatably attached to the inner wall of the opening of the drying cylinder.

[0014] Preferably, a support is fixedly installed on the lower part of the side wall of one end of the drying cylinder opening along the direction perpendicular to the axial direction of the drying cylinder. There are two telescopic parts arranged in parallel. Each telescopic part includes an electric telescopic rod. The connecting ends and telescopic ends of the electric telescopic rods are rotatably connected to the bottom plate and the support through connecting heads respectively.

[0015] Preferably, the driving part includes a motor fixedly installed on the bottom side wall of the drying cylinder, and the power output shaft of the motor freely penetrates into the drying cylinder and is fixedly connected to the rotating cylinder coaxially.

[0016] Preferably, the side wall of the rotating cylinder is a hollow structure, the aperture of the hollow holes on the side wall of the rotating cylinder is smaller than the width of the PET chips, and a plurality of convex blocks are fixedly installed on the inner wall of the rotating cylinder along its axial direction, and the plurality of convex blocks are arranged alternately along the circumferential direction of the inner wall of the rotating cylinder.

[0017] Preferably, a material receiving box is fixedly installed on the bottom plate, and the material receiving box is located on the rotation track of the mouth of the rotating cylinder.

[0018] Other advantages, objectives and features of the present utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of an embodiment of the present utility model.

[0020] Figure 2 is Figure 1 a cross-sectional view of the drying cylinder in

[0021] Figure 3 is Figure 1 a front view of the rotating frame in

[0022] Figure 4 is Figure 1 a front view of the bracket in

[0023] The reference numerals in the figures are as follows: 1, bottom plate; 2, drying cylinder; 3, rotating cylinder; 31, rotating ring; 32, convex block; 33, air inlet pipe; 4, motor; 5, rotating frame; 51, rotating shaft; 6, electric telescopic rod; 7, bracket; 8, connector; 9, material receiving box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved objectives and functions of the present utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0025] As shown in Figure 1-2As shown in the figure, an embodiment of the present utility model provides a PET chip drying device, which includes: a bottom plate 1 and a drying mechanism. The drying mechanism includes a drying part and a telescopic part rotatably installed on the base, a rotating part rotatably installed in the drying part, and a driving part installed on the drying part. The drying part and the telescopic part both rotate in the vertical direction, and the telescopic ends of the drying part and the telescopic part are rotatably connected. An air inlet pipe 33 is provided between the inner and outer sides of the drying part. The rotating part is hollow inside and communicates with the outside of the drying part. The power output end of the driving part freely passes through the drying part and is connected to the rotating part. Among them, the air inlet pipe 33 is connected to an external heat source to facilitate heating the inside of the drying part.

[0026] Pour the PET chips to be dried into the rotating part from the connection between the rotating part and the outside of the drying part. Then, pass hot air into the drying part through the air inlet pipe 33. Then start the driving part to drive the rotating part to rotate, so that the PET chips are turned over and dried synchronously in the rotating part. After drying, drive the drying part to rotate through the telescopic part, so that the connection between the rotating part and the outside of the drying part faces the bottom plate 1 to pour out the PET chips in the rotating part. Then drive the drying part to reset through the telescopic part, and then repeat the above operation to continue drying. The operation is simple and convenient, and can quickly dry the PET chips. Moreover, during the rotation of the rotating part, all the PET chips can be driven to turn over, so that all the PET chips can be scattered and not piled up, ensuring that each PET chip is evenly heated and improving the drying efficiency.

[0027] As Figure 1-4 As shown in the figure, according to another embodiment of the present utility model, the above-mentioned PET chip drying device is further optimized for the drying part, rotating part, telescopic part and driving part it includes. A rotating frame 5 is fixedly installed on the upper part of the base. The rotating frame 5 is of a U-shaped structure. The drying part includes a drying cylinder 2 arranged horizontally. One end of the bottom of the drying cylinder 2 is rotatably installed between the opposite inner walls of the rotating frame 5 through a rotating shaft 51. The rotating part is rotatably installed in the drying cylinder 2. The air inlet pipe 33 is vertically and fixedly connected and installed on the side wall of the drying cylinder 2. The driving part is installed on the outer wall of the bottom of the drying cylinder 2. The telescopic end of the telescopic part is rotatably connected to the side wall of one end of the cylinder mouth of the drying cylinder 2.

[0028] The rotating part includes a rotating cylinder 3 coaxially and rotatably installed in the drying cylinder 2, and the power output end of the driving part freely passes through the drying cylinder 2 and is fixedly connected to the rotating cylinder 3; preferably, a plurality of rotating rings 31 are fixedly sleeved on the outer wall of the rotating cylinder 3 along its axial direction, and each rotating ring 31 is rotatably connected to the inner wall of the drying cylinder 2 to ensure the stability of the rotation of the rotating cylinder 3 in the drying cylinder 2; moreover, the diameters of the openings of both the drying cylinder 2 and the rotating cylinder 3 are smaller than the diameters of their bottoms, and the outer wall of the opening of the rotating cylinder 3 is in rotational fit with the inner wall of the opening of the drying cylinder 2, which can prevent the PET chips from falling between the rotating cylinder 3 and the drying cylinder 2 when passing through the openings of the rotating cylinder 3 and the drying cylinder 2.

[0029] A support 7 is fixedly installed on the lower part of the side wall at one end of the opening of the drying cylinder 2 along the direction perpendicular to the axial direction of the drying cylinder 2. There are two telescopic parts arranged in parallel. Each telescopic part includes an electric telescopic rod 6. The connecting end and the telescopic end of the electric telescopic rod 6 are respectively rotatably connected to the bottom plate 1 and the support 7 through connectors 8; the drying cylinder 2 and the rotating cylinder 3 are driven to rotate by the electric telescopic rod 6.

[0030] The driving part includes a motor 4 fixedly installed on the side wall of the bottom of the drying cylinder 2. The power output shaft of the motor 4 freely penetrates into the drying cylinder 2 and is coaxially and fixedly connected to the rotating cylinder 3; both the motor 4 and the electric telescopic rod 6 are powered by an external power supply.

[0031] As Figure 2 shown, according to another embodiment of the present invention, for the PET chip drying device, preferably, the side wall of the rotating cylinder 3 is a hollow structure, and the aperture of the hollow holes on the side wall of the rotating cylinder 3 is smaller than the width of the PET chips to prevent the PET chips from being in the hollow holes or falling between the rotating cylinder 3 and the drying cylinder 2 from the hollow holes. A plurality of convex blocks 32 are fixedly installed on the inner wall of the rotating cylinder 3 along its axial direction, and the plurality of convex blocks 32 are arranged alternately along the circumferential direction of the inner wall of the rotating cylinder 3; the hollow-structured rotating cylinder 3 can better allow hot air to pass through, making the drying speed of the PET chips faster and ensuring uniform heating of the PET chips; the plurality of convex blocks 32 can drive the PET chips to better move synchronously with the rotating cylinder 3, and can also play a certain stirring role, and can also assist in accelerating the drying rate and improving the drying efficiency.

[0032] As Figure 1 shown, according to another embodiment of the present invention, for the PET chip drying device, preferably, a receiving box 9 is fixedly installed on the bottom plate 1, and the receiving box 9 is located on the rotation trajectory of the opening of the rotating cylinder 3; after drying is completed, the electric telescopic rod 6 drives the drying cylinder 2 and the rotating cylinder 3 to rotate, and the PET chips in the rotating cylinder 3 are poured into the receiving box 9 for collection.

[0033] The working principle of the present utility model is as follows: When the present utility model is in use, the PET chips to be dried are poured into the rotating cylinder 3 from the openings of the drying cylinder 2 and the rotating cylinder 3. Then, hot air is introduced into the drying cylinder 2 through the air inlet pipe 33. Subsequently, the motor 4 is started to drive the rotating cylinder 3 to rotate, so that the PET chips are turned and dried in the rotating cylinder 3. After drying is completed, the electric telescopic rod 6 is started to drive the drying cylinder 2 and the rotating cylinder 3 to rotate towards the receiving box 9, and the dried PET chips in the rotating cylinder 3 are poured into the receiving box 9 for collection. Subsequently, the electric telescopic rod 6 is started again to drive the drying cylinder 2 and the rotating cylinder 3 to rotate in the opposite direction towards the receiving box 9 for resetting, and then the above steps are repeated to carry out the drying process again.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A PET slice drying device, characterized in that: include: a bottom plate (1), and The drying mechanism comprises a drying part and a telescopic part rotatably mounted on a base, a rotating part rotatably mounted in the drying part, and a driving part mounted on the drying part. The drying part and the telescopic part both rotate in a vertical direction. The drying part and the telescopic end of the telescopic part are rotatably connected. An air inlet pipe (33) is provided between the inner and outer sides of the drying part. The rotating part is hollow inside and communicates with the outside of the drying part. The power output end of the driving part freely passes through the drying part and is connected to the rotating part.

2. A PET slice drying device according to claim 1, characterized in that: The upper part of the base is fixedly mounted on a rotating frame (5), the rotating frame (5) is a U-shaped structure, the drying part comprises a horizontally arranged drying cylinder (2), one end of the cylinder bottom of the drying cylinder (2) is rotatably mounted between two inner walls of the rotating frame (5) facing each other through a rotating shaft (51), the rotating part is rotatably mounted in the drying cylinder (2), the air inlet pipe (33) is vertically fixedly connected and mounted on the side wall of the drying cylinder (2), the driving part is mounted on the outer wall of the cylinder bottom of the drying cylinder (2), and the telescopic end of the telescopic part is rotatably connected to the side wall of one end of the cylinder mouth of the drying cylinder (2).

3. A PET slice drying device according to claim 2, characterized in that: The rotating part comprises a rotating drum (3) coaxially rotatably mounted inside the drying drum (2); the power output end of the driving part freely passes through the drying drum (2) and is fixedly connected to the rotating drum (3).

4. A PET slice drying device according to claim 3, characterized in that: A plurality of rotating rings (31) are fixedly sleeved on the outer wall of the rotating cylinder (3) along its axial direction, and each rotating ring (31) is rotatably connected to the inner wall of the drying cylinder (2).

5. A PET slice drying device according to claim 3, characterized in that: The diameters of the barrel openings of the drying barrel (2) and the rotating barrel (3) are both smaller than the diameters of their barrel bottoms, and the outer wall of the barrel opening of the rotating barrel (3) is rotationally fitted with the inner wall of the barrel opening of the drying barrel (2).

6. A PET slice drying device according to claim 2, characterized in that: A bracket (7) is fixedly mounted on the lower part of the side wall at one end of the tube mouth of the drying cylinder (2) in a direction perpendicular to the axial direction of the drying cylinder (2). There are two telescopic parts arranged in parallel, and each telescopic part includes an electric telescopic rod (6). The connecting end and the telescopic end of the electric telescopic rod (6) are rotatably connected to the bottom plate (1) and the bracket (7) through a connecting head (8) in a one-to-one correspondence.

7. A PET slice drying device according to claim 3, characterized in that: The driving unit comprises a motor (4) fixedly mounted on the bottom side wall of the drying cylinder (2); the power output shaft of the motor (4) freely penetrates into the drying cylinder (2) and is coaxially fixedly connected to the rotating cylinder (3).

8. A PET slice drying device according to claim 3, characterized in that: The side wall of the rotating cylinder (3) is a hollow structure, the diameter of the hollow hole of the side wall of the rotating cylinder (3) is smaller than the width of the PET slice, a plurality of protrusions (32) are fixedly mounted on the inner wall of the rotating cylinder (3) along its axial direction, and the plurality of protrusions (32) are staggeredly arranged along the circumference of the inner wall of the rotating cylinder (3).

9. A PET slice drying device according to claim 3, characterized in that: A material receiving box (9) is fixedly mounted on the bottom plate (1), and the material receiving box (9) is located on the rotation track of the barrel mouth of the rotating barrel (3).

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