A large-capacity rotary vertical drying device

Abstract

The present invention relates to a large-capacity rotary vertical drying device, which belongs to the field of optical fiber manufacturing technology. It includes a columnar core rod fixing frame, a central rotating shaft is installed in the columnar core rod fixing frame, a core rod fixing / drying blowing device is evenly arranged between the transparent isolation cover set outside the columnar core rod fixing frame and the columnar core rod fixing frame, and the columnar core rod fixing frame is connected to the transmission base through an annular slide rail; a head is installed on the top of the central rotating shaft, and the head is connected to the cyclone joint; a rotating shaft a, a rotating shaft b and a transmission belt are arranged in the transmission base, and a steering wheel is arranged on the outer panel of the transmission base, the central rotating shaft is connected to the rotating shaft a through a flange, the rotating shaft a is connected to the rotating shaft b through a transmission belt, and the rotating shaft b is connected to the steering wheel; the stainless steel air pipes evenly arranged outside the central rotating shaft are connected to the core rod fixing / drying blowing device through a plastic pipe. Partition drying and storage, individual access and good sealing, high drying cleanliness, large storage capacity, and convenient operation.

Description

Technical Field

[0001] The invention relates to a large-capacity rotary vertical drying device, belonging to the technical field of optical fiber manufacturing. Background Art

[0002] In the process of manufacturing optical fiber, the cleanliness quality of the core rod and the inner wall of the sleeve directly determines the quality of the sleeve preform drawing. The prerequisite for ensuring the quality of the sleeve preform drawing is to avoid the secondary contamination of the core rod and the sleeve after pickling during the assembly process. Therefore, the drying and storage of the core rod after pickling is particularly important. The traditional core rod drying box has a simple structure and can only place the core rods after pickling in a single row. The storage capacity is small, and the uneven force on the core rods can easily cause cracks at the unsealing point. In addition, the drying and storage of the core rods are not divided into zones. The box body has poor sealing when taking and placing the core rods, which can easily cause secondary contamination, thereby affecting the quality of the preform drawing. Summary of the invention

[0003] The object of the present invention is to provide a large-capacity rotary vertical drying device with drying and storage partitions, good individual access sealing, high drying and cleanliness, large storage capacity and convenient operation in view of the deficiencies in the above-mentioned prior art; so as to solve the problems that the existing drying box has no partitions for storing and drying core rods, poor sealing for taking and placing core rods, which may easily cause secondary pollution, and single-row flat storage of core rods, which makes the core rods subject to uneven force, which may easily cause cracking at the unsealing point, small storage capacity and inconvenient operation.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A large-capacity rotary vertical drying device comprises a columnar mandrel fixing frame, characterized in that: a central rotating shaft is arranged inside the columnar mandrel fixing frame, a transparent isolation cover is arranged outside the columnar mandrel fixing frame, a mandrel fixing / drying blowing device is evenly arranged between the transparent isolation cover and the columnar mandrel fixing frame, and the columnar mandrel fixing frame is mounted on a transmission base through an annular slide rail; a sealing head is arranged on the top end of the central rotating shaft, the sealing head is connected to a cyclone joint, and the cyclone joint is connected to a compressed air pipeline; a rotating shaft a, a rotating shaft b and a transmission belt are arranged inside the transmission base, a steering wheel is arranged on an outer panel of the transmission base, the bottom end of the central rotating shaft is connected to the rotating shaft a of the transmission base through a flange, the rotating shaft a is transmission-connected to the rotating shaft b through a transmission belt, and the rotating shaft b is connected to the steering wheel; air supply pipelines are evenly arranged on the outside of the central rotating shaft, and the air supply pipeline is connected to the mandrel fixing / drying blowing device.

[0006] The outer circumference of the columnar core rod fixing frame is evenly distributed with core rod storage grooves, the lower end of the core rod storage groove is provided with a core rod cone load-bearing and limiting base, the upper end of the core rod storage groove is provided with a core rod fixing / drying blowing device, and the upper end surface of the core rod storage groove is provided with a circular hole.

[0007] The interior of the central rotating shaft is set as a cavity, and the cavity is connected to each core rod storage groove through a stainless steel air pipe, and the stainless steel air pipe and the corresponding core rod fixing / blowing device are connected through a plastic air pipe.

[0008] The transparent isolation cover is installed on the transmission base, and a core rod access door is arranged on the transparent isolation cover. Sealing cushions are arranged on both sides of the core rod access door.

[0009] Exhaust valves are evenly distributed around the bottom of the transparent isolation cover.

[0010] The beneficial effects of the present invention compared with the prior art are:

[0011] The large-capacity rotary vertical drying device realizes drying and storage partitions through the central rotating shaft set in the columnar mandrel fixing frame, the mandrel fixing / drying blowing device evenly distributed between the transparent isolation cover and the columnar mandrel fixing frame, and the mandrel storage grooves evenly distributed vertically on the outer circumference of the columnar mandrel fixing frame, and vertically stores and retrieves the mandrels, so that the mandrels are evenly stressed and will not crack after long-term storage. It has high space utilization, strong drying and storage capacity, high cleanliness, good sealing performance, and effectively avoids secondary contamination of the mandrels due to multiple storage and retrieval operations, and is easy to operate. It solves the problems of existing drying boxes storing and drying mandrels without partitions, poor sealing of mandrels for taking and placing, and easy secondary contamination, and single-row flat storage of mandrels, which makes uneven stress easy to cause cracking at the unsealing of the mandrels, small storage capacity, and inconvenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of a large-capacity rotary vertical drying device;

[0013] Figure 1-1 for Figure 1 A magnified view of point A;

[0014] Figure 1-2 for Figure 1 Enlarged view of point B;

[0015] Figure 1-3 for Figure 1 Enlarged view of point C;

[0016] Figure 1-4 for Figure 1 Enlarged view of point D;

[0017] Figure 1-5 for Figure 1 Enlarged view of point E;

[0018] Figure 1-6 for Figure 1 Enlarged view of point F;

[0019] Figure 2It is a schematic diagram of the AA top view structure of a large-capacity rotary vertical drying device;

[0020] Figure 2-1 for Figure 2 Enlarged view at G;

[0021] Figure 3 It is a schematic diagram of the axonometric structure of a large-capacity rotary vertical drying device;

[0022] Figure 4 This is a schematic diagram of the axonometric structure of a large-capacity rotary vertical drying device after removing the transparent isolation cover.

[0023] In the figure: 1 columnar mandrel fixing frame, 2 transparent isolation cover, 3 mandrel fixing / drying blowing device, 4 transmission base, 5 head, 6 cyclone joint, 7 mandrel;

[0024] 1-1 center rotating shaft, 1-2 annular slide rail, 1-3 flange, 1-4 core rod storage groove, 1-5 core rod cone load-bearing limit base, 1-6 stainless steel air pipe;

[0025] 2-1 core rod access door, 2-2 sealing cushion, 2-3 exhaust valve, 2-4 round hole;

[0026] 3-1 Plastic trachea;

[0027] 4-1 rotating shaft a, 4-2 rotating shaft b, 4-3 transmission belt, 4-4 steering wheel;

[0028] 7-1 mandrel handle, 7-2 mandrel cone. DETAILED DESCRIPTION

[0029] The design concept of the applicant of the present invention is as follows:

[0030] The first part is the structural design of the drying device body. The drying device body is a rectangular body, including a columnar mandrel fixing frame 1, a transparent isolation cover 2, a central rotating shaft 1-1, and a transmission base 4. The columnar mandrel fixing frame 1 and the transmission base 4 are connected by setting an annular slide rail 1-2, and a head 5 and a cyclone joint 6 are set on the top of the central rotating shaft 1-1.

[0031] The second part is the airtight design of the drying device body. To ensure the airtightness of the drying device body, the drying device body is designed to be divided into two parts: a core rod storage area and a core rod drying area. An open core rod storage door 2-1 is designed on the transparent isolation cover 2. Sealing cushions 2-2 are arranged on both sides of the core rod storage door 2-1. The sealing cushions 2-2 are used to realize the isolation and sealing requirements of the core rod storage area and the core rod drying area. A circular hole 2-4 is arranged on the upper end face of the core rod storage groove 1-4 to facilitate the installation of the core rod 7 and facilitate the up and down movement of the core rod fixing / drying blowing device 3.

[0032] The third part is the structural design of the columnar mandrel fixing frame 1. Cylindrical grooves, namely mandrel storage grooves 1-4, are evenly distributed vertically on the outer circumference of the columnar mandrel fixing frame 1. A mandrel cone load-bearing and limiting base 1-5 is designed at the lower end of the mandrel storage groove 1-4, and a mandrel fixing / drying blowing device 3 is arranged at the upper end of the mandrel storage groove 1-4.

[0033] The fourth part is the design of the transmission device of the columnar mandrel fixing frame 1, which is realized by the cooperation of the transmission base 4, the central rotating shaft 1-1 and the columnar mandrel fixing frame 1. The central rotating shaft 1-1 and the columnar mandrel fixing frame 1 are connected together by welding of steel pipes. The annular slide rail 1-2 arranged between the columnar mandrel fixing frame 1 and the transmission base 4 is mainly used for the load bearing and rotation of the columnar mandrel fixing frame 1. Two rotating shafts are arranged inside the transmission base 4: the rotating shaft a4-1 and the rotating shaft b4-2. The rotating shaft a4-1 is connected to the central rotating shaft 1-1, and the rotating shaft b4-2 is connected to the steering wheel 4-4. The rotating shaft a4-1 and the rotating shaft b4-2 are connected by the transmission belt 4-3, so that the synchronous rotation of the steering wheel 4-4 and the columnar mandrel fixing frame 1 is realized.

[0034] The fifth part is the design of the core rod drying method. A core rod fixing / drying blowing device 3 is designed and installed above the evenly distributed core rod storage grooves 1-4. The core rod fixing / drying blowing device 3 moves vertically above the core rod 7. The core rod handle 7-1 passes through the middle of the core rod fixing / drying blowing device 3 and is fixed. The core rod cone 7-2 is fixed by the core rod cone load-bearing limit base 1-5. The top of the central rotating shaft 1-1 is connected to the compressed air pipeline through the cyclone joint 6. Stainless steel air pipes 1-6 are evenly distributed on the outside of the upper end of the central rotating shaft 1. The stainless steel air pipes 1-6 are connected to the core rod fixing / drying blowing device 3 to provide clean, dry and low-dew-point compressed air for the core rod fixing / drying blowing device 3.

[0035] The present invention application has the following characteristics:

[0036] Compared with the conventional drying box which adopts a simple box body and a single row to store the core rods, the present invention has high space utilization, strong drying and storage capacity, and greatly improved processing capacity. Compared with the conventional drying box which has no partition, so that the core rods 7 stored in the drying cabinet are in contact with the outside air when the core rods 7 are taken out, causing floating dust to contaminate the clean core rods 7 after pickling, when the present invention stores and takes out the core rods 7, the space in the drying device where the core rods 7 are placed is closed, and the sealing performance is good, which effectively prevents the core rods 7 from being contaminated by secondary pollution.

[0037] The present invention has high drying efficiency and cleanliness of the drying area. The traditional drying box places multiple core rods in one space, which is large and poorly sealed. The flow direction of the drying gas in the box is disordered, resulting in poor drying effect. Each core rod 7 stored in the utility model has an independent drying space, which is small and relatively closed. The drying gas flows from top to bottom, the gas flow speed in the drying space is fast, and the gas flow direction is consistent from top to bottom, so the drying efficiency is high and the effect is good.

[0038] The mandrel 7 is stressed vertically, and the mandrel 7 will not crack after long-term storage. The traditional horizontal drying box places the mandrel 7 horizontally and fixes the mandrel 7 in a snap-fit ​​manner. The mandrel 7 is stressed at multiple points and unevenly, which can easily damage the mandrel 7. The present invention places the mandrel 7 vertically, and the mandrel handle 7-1 is limited and fixed by the designed mandrel fixing / drying blowing device 3, and the mandrel cone 7-2 is fixed by the mandrel cone load-bearing limit base 1-5, so that the mandrel 7 is fixed as a whole and is securely preserved without damage.

[0039] The following is a further detailed description of the implementation of the large-capacity rotary vertical drying device in conjunction with the accompanying drawings (see Figure 1 , Figure 1-1 to Figure 1-6 , Figure 2 to Figure 2-1 , Figure 3 , Figure 4 ):

[0040] The large-capacity rotary vertical drying device comprises a columnar mandrel fixing frame 1, wherein a central rotating shaft 1-1 is arranged inside the columnar mandrel fixing frame 1, a transparent isolation cover 2 is arranged outside the columnar mandrel fixing frame 1, a mandrel fixing / drying blowing device 3 is evenly arranged between the transparent isolation cover 2 and the columnar mandrel fixing frame 1, and the columnar mandrel fixing frame 1 is connected to a transmission base 4 through an annular slide rail 1-2; a sealing head 5 is arranged on the top end of the central rotating shaft 1-1, and the sealing head 5 is connected to a cyclone joint 6, and the cyclone joint 6 is connected to a compressed air pipeline; the transmission base A rotating shaft a4-1, a rotating shaft b4-2 and a transmission belt 4-3 are arranged in the seat 4, a steering wheel 4-4 is arranged on the upper surface of the transmission base 4, the bottom end of the central rotating shaft 1-1 is connected to the rotating shaft a4-1 of the transmission base 4 through a flange 1-3, the rotating shaft a4-1 is connected to the rotating shaft b4-2 through a transmission belt 4-3, and the rotating shaft b4-2 is connected to the steering wheel 4-4; stainless steel air pipes 1-6 are evenly distributed on the outside of the central rotating shaft 1-1, and the stainless steel air pipes 1-6 are connected to the core rod fixing / drying blowing device 3.

[0041] The outer circumference of the columnar mandrel fixing frame 1 is evenly distributed vertically with mandrel storage grooves 1-4, the lower end of the mandrel storage groove 1-4 is provided with a mandrel cone load-bearing limit base 1-5, the upper end of the mandrel storage groove 1-4 is provided with a mandrel fixing / drying blowing device 3, and the upper end surface of the mandrel storage groove 1-4 is provided with a circular hole 2-4 (see Figure 1 , Figure 1-1 , Figure 1-2 , Figure 1-6 , Figure 4 The interior of the central rotating shaft 1-1 is configured as a cavity, and the cavity is connected to each of the mandrel storage grooves 1-4 through a stainless steel air pipe 1-6, and the stainless steel air pipe 1-6 is connected to the corresponding mandrel fixing / blowing device 3 through a plastic air pipe 3-1 (see Figure 1 , Figure 1-4 , Figure 1-5 , Figure 4 The transparent isolation cover 2 is installed on the transmission base 4, and a core rod access door 2-1 is provided on the transparent isolation cover 2. Sealing cushions 2-2 are provided on both sides of the core rod access door 2-1 (see Figure 2 , Figure 2-1 , Figure 3 The bottom of the transparent isolation cover 2 is evenly provided with exhaust valves 2-3 (see Figure 1 , Figure 1-3 ).

[0042] The working principle of this large-capacity rotary vertical drying device is as follows:

[0043] Mandrel 7 access; when storing the mandrel 7, first open the mandrel access door 2-1, rotate the steering wheel 4-4 of the transmission base 4, and make the central rotating shaft 1-1 rotate clockwise through the transmission connection of the rotating shaft a4-1, the rotating shaft b4-2 and the transmission belt 4-3, so that a vacant mandrel storage groove 1-4 on the columnar mandrel fixing frame 1 is rotated to face the mandrel access door 2-1, and then the mandrel 7 is vertically aligned with the circular hole 2-4 on the upper end surface of the mandrel storage groove 1-4 in the mandrel access door 2-1, and at the same time, the mandrel cone 7-2 is aligned with the mandrel cone load-bearing limit base 1-5 and then vertically inserted After entering, the weight of the entire mandrel 7 falls on the load-bearing and limiting base 1-5 of the mandrel cone, and the mandrel fixing / drying blowing device 3 is freely moved up and down in the circular hole 2-4 made through the upper end surface of the mandrel storage groove 1-4, and the mandrel fixing / drying blowing device 3 is put on the mandrel handle 7-1 from top to bottom, and finally the steering wheel 4-4 is rotated clockwise to rotate the columnar mandrel fixing frame 1 clockwise by a certain angle, so that another empty mandrel storage groove 1-4 is facing the mandrel storage and access door 2-1, and then the mandrel storage and access door 2-1 is closed, and the storage operation of the mandrel 7 is completed. The operation process of taking out the mandrel 7 is the reverse process of the mandrel 7 storage operation process, which will not be repeated here.

[0044] Mandrel 7 drying: dry compressed air enters from the cyclone joint 6, flows into the inner cavity of the central rotating shaft 1-1 through the end cap 5, and the cavity is connected to each mandrel storage groove 1-4 on the columnar mandrel fixing frame 1 through a stainless steel air pipe 1-6, and each stainless steel air pipe 1-6 is connected to the corresponding mandrel fixing / drying blowing device 3 through a plastic air pipe 3-1, so that dry compressed air can flow from the inner cavity of the central rotating shaft 1-1 into each mandrel storage groove 1-4 to dry each stored mandrel 7. The exhaust valves 2-3 evenly distributed around the bottom of the transparent isolation cover 2 are used to completely remove the moisture in the drying cabinet of the present invention, while ensuring that the gas flow direction in the drying device of the present invention always flows from top to bottom; the sealing cushions 2-2 arranged on both sides of the mandrel storage and access door 2-1 effectively ensure the high sealing performance of the drying device of the present invention when storing and accessing the mandrel 7.

[0045] The above description is only a preferred embodiment of the present invention. The above examples do not impose any form of limitation on the essential content of the present invention. Any simple modification or deformation made by ordinary technicians in the technical field to the above specific implementation methods based on the technical essence of the present invention after reading this specification, as well as equivalent embodiments that may be changed or modified to equivalent changes using the technical content disclosed above, still fall within the scope of the technical solution of the present invention without departing from the essence and scope of the present invention.

Claims

1. A large-capacity rotary vertical drying device, comprising a columnar mandrel holder (1), characterized in that: The columnar mandrel fixing frame (1) is provided with a central rotating shaft (1-1) inside, and a transparent isolation cover (2) is provided outside the columnar mandrel fixing frame (1). The drying device body is designed to be divided into two parts: a mandrel storage and access area and a mandrel drying area. An open mandrel storage and access door (2-1) is designed on the transparent isolation cover (2). Sealing cushions (2-2) are provided on both sides of the mandrel storage and access door (2-1). The transparent isolation cover (2) is installed on the transmission base (4). The bottom of the transparent isolation cover (2) is uniformly An exhaust valve (2-3) is arranged uniformly on the outer circumference of the columnar mandrel fixing frame (1); cylindrical grooves, namely, mandrel storage grooves (1-4) are evenly arranged vertically; a mandrel cone load-bearing limit base (1-5) is designed at the lower end of the mandrel storage groove (1-4); a mandrel fixing / drying blowing device (3) is arranged at the upper end of the mandrel storage groove (1-4); a mandrel fixing / drying blowing device (3) is evenly arranged between the transparent isolation cover (2) and the columnar mandrel fixing frame (1); the upper end of the mandrel storage groove (1-4) is provided with a mandrel fixing / drying blowing device (3); a mandrel fixing / drying blowing device (3) is evenly arranged between the transparent isolation cover (2) and the columnar mandrel fixing frame (1); A circular hole (2-4) is formed on the end surface; the columnar mandrel fixing frame (1) is connected to the transmission base (4) through an annular slide rail (1-2); a head (5) is connected to the top end of the central rotating shaft (1-1), the head (5) is connected to a cyclone joint (6), and the cyclone joint (6) is connected to a compressed air pipeline; a rotating shaft a (4-1), a rotating shaft b (4-2) and a transmission belt (4-3) are arranged in the transmission base (4), and a steering wheel is arranged on the outer panel of the transmission base (4) (4-4), the bottom end of the central rotating shaft (1-1) is connected to the rotating shaft a (4-1) of the transmission base (4) through a flange (1-3), the rotating shaft a (4-1) is connected to the rotating shaft b (4-2) through a transmission belt (4-3), and the rotating shaft b (4-2) is connected to the steering wheel (4-4); stainless steel air pipes (1-6) are evenly arranged on the outside of the central rotating shaft (1-1), and the stainless steel air pipes (1-6) are connected to the core rod fixing / drying blowing device (3); The interior of the central rotating shaft (1-1) is arranged as a cavity, the cavity is connected to the mandrel storage groove (1-4) via a stainless steel air pipe (1-6), and the stainless steel air pipe (1-6) and the corresponding mandrel fixing / blowing device (3) are connected via a plastic air pipe (3-1).

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