Tunnel drying device for surface printing of swimming goggles

Abstract

The utility model discloses a tunnel drying device for surface printing of swimming goggles, and relates to the technical field of swimming goggles processing. The device comprises a processing table, a conveying device and a drying device are arranged on the processing table, a plurality of rubber bottom pads are fixedly connected to the outer surface of the conveying device, supporting blocks are arranged on the rubber bottom pads, and a uniform drying mechanism is arranged on the upper surfaces of the supporting blocks and used for uniformly drying the surfaces of the swimming goggles lenses after printing. A stabilizing mechanism is arranged between the rubber base pad and the supporting block, lenses are limited and fixed among the second limiting block, the second sliding block and the containing column, then the positions of the lenses of the swimming goggles are limited, and then the lenses of the swimming goggles are conveniently clamped and transferred to the next working procedure by a follow-up mechanical arm for follow-up machining. The automation degree of swimming goggles lens production is high, the production efficiency of swimming goggles lenses is improved, and the practicability of the tunnel drying device for swimming goggles surface printing is improved.

Description

Technical Field

[0001] This utility model belongs to the field of swimming goggle processing technology, and specifically relates to a tunnel drying device for printing on the surface of swimming goggles. Background Technology

[0002] Swimming goggles are a type of equipment used in swimming. They are worn close to the eyes to allow for clear vision underwater while preventing pool water from entering the eyes. As a result, they have become an essential item for many swimming enthusiasts and have brought a lot of fun to the sport. In addition to the functional differences between racing goggles, plano goggles, prescription goggles, and reading goggles, good swimming goggles also have high-performance anti-fog properties, 100% UV protection, and a sealing function, and they also protect the eyes and prevent damage.

[0003] During production, swimming goggle lenses are printed with the manufacturer's trademark or brand logo. Depending on the design requirements, personalized patterns can also be printed on the lenses. The printed patterns or designs on the lenses can serve a decorative purpose, making the goggles more beautiful and fashionable. After printing, swimming goggle lenses are usually dried using a tunnel drying device.

[0004] In the production of swimming goggle lenses, the lenses are typically placed directly on a conveyor belt for drying. After drying, the position of the lenses is generally not neat and has a high degree of uncertainty. After drying, the lenses need to enter the next processing step. However, because the position of the lenses after drying is often uncertain in traditional tunnel drying devices, it is inconvenient to use robotic arms, which are indispensable automation equipment in modern manufacturing, to clamp and transfer the lenses to the next process. This results in a low degree of automation in swimming goggle lens production, hinders the improvement of production efficiency, and reduces the practicality of tunnel drying devices for printing on swimming goggle surfaces. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a tunnel drying device for printing on the surface of swimming goggles, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a tunnel drying device for printing on the surface of swimming goggles. The device includes a processing table with a conveying device and a drying unit. Multiple rubber pads are fixedly connected to the outer surface of the conveying device. Support blocks are mounted on the rubber pads, and a uniform drying mechanism is provided on the upper surface of the support blocks. This uniform drying mechanism is used to uniformly dry the printed surface of the swimming goggle lenses. A stabilizing mechanism is provided between the rubber pads and the support blocks to prevent the support blocks from affecting the normal operation of the conveying device, thereby ensuring the stability of the conveying device. Two first sliding grooves are formed within the support blocks, each containing a pushing mechanism. A limiting mechanism is provided on the upper surface of the support block to limit the movement of the swimming goggle lenses. A driving mechanism is located on the right side of the support block to drive the limiting mechanism and the pushing mechanism.

[0008] Furthermore, the uniform drying mechanism includes two ventilation slots, which are formed on the upper surface of the support block. Multiple placement columns are fixedly connected to the inner wall of the ventilation slots. The ventilation slots are arc-shaped. Multiple ventilation slots are formed on the outer surfaces of the front and rear sides of the support block. The ventilation slots are connected to the interior of the ventilation slots.

[0009] Furthermore, the stabilizing mechanism includes a bottom groove, which is formed on the lower surface of the support block. A plurality of rubber pillars are fixedly connected to the upper surface of the rubber base pad, and the upper ends of the rubber pillars are fixedly connected to the top wall of the bottom groove. The lower surface of the support block is in contact with the upper surface of the rubber base pad.

[0010] Furthermore, the driving mechanism includes a rotary motor, which is fixedly connected to the right side surface of the support block. A second sliding groove is formed inside the support block, located between two first sliding grooves. A rotary output shaft of the rotary motor is fixedly connected to a rotary rod. The left end of the rotary rod rotates through the second sliding groove and the two first sliding grooves, and the left end of the rotary rod rotates out of the left side surface of the support block. Two sets of first bidirectional threads are formed on the outer surface of the rotary rod, with the first bidirectional threads located in the corresponding first sliding grooves. A second bidirectional thread is formed on the outer surface of the rotary rod, with the second bidirectional thread located in the second sliding groove.

[0011] Furthermore, the limiting mechanism includes two second sliding blocks, which are threaded onto two opposite sections of the second bidirectional thread. The upper surface of the second sliding block is inclined, and the two second sliding blocks are mirror images of each other. The lower surface of the second sliding block is slidably connected to the bottom wall of the second sliding groove. Two second limiting blocks are fixedly connected to the upper surface of the support block, and the two second limiting blocks are mirror images of each other. Two connecting grooves are formed on the upper surface of the support block, and both connecting grooves communicate with the interior of the second sliding groove. Four return springs are fixedly connected to the bottom wall of the second sliding groove. Two first limiting blocks are provided at the upper ends of the four return springs. The first limiting blocks are L-shaped, and the vertical blocks of the first limiting blocks are slidably connected to the corresponding connecting grooves. The lower surface of the vertical blocks of the first limiting blocks is fixedly connected to the upper ends of the corresponding two of the four return springs. The second limiting blocks are also L-shaped.

[0012] Furthermore, the pushing mechanism includes two first sliding blocks, which are slidably connected in corresponding first sliding grooves. The two first sliding blocks are threaded onto two opposite threads of the corresponding first bidirectional thread, and a first rotating block is fixedly connected to the upper surface of the first sliding block.

[0013] Furthermore, a first rotating rod is rotatably connected to the first rotating block, and two corresponding first rotating rods are arranged in a mirror image. A second rotating block is rotatably connected to the end of the first rotating rod away from the first rotating block. The bottom wall of the ventilation groove is provided with an installation groove that communicates with the interior of the corresponding first sliding groove. A push block is slidably connected in the installation groove. The second rotating block is fixedly connected to the lower surface of the push block. The first rotating rod is inclined.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model limits the position of the swimming goggle lens by fixing the lens between the second limiting block, the second sliding block and the placement column, so that the position of the swimming goggle lens can be neatly conveyed after drying. This makes it convenient for the subsequent robot to clamp the swimming goggle lens and transfer it to the next process for further processing. This makes the production of swimming goggle lenses highly automated, thereby improving the production efficiency of swimming goggle lenses and increasing the practicality of the tunnel drying device for printing on the surface of swimming goggles.

[0016] 2. The rubber base and support block are fixedly connected by multiple rubber pillars, thereby reducing the connection area between the support block and the conveying device. Since the support block is made of rigid material, it avoids the support block from moving to the front and rear sides of the conveying device and damaging the conveyor belt, thus ensuring the stability of the tunnel drying device for printing on the surface of swimming goggles.

[0017] 3. During the rotation of the two corresponding first rotating rods, the pushing block moves up and down, and the pushing block contacts the lower surface of the swimming goggle lens, thereby pushing the swimming goggle lens away from the placement column, making it easier to remove the swimming goggle lens.

[0018] 4. Place the goggle lens on the placement column to support it, allowing sufficient airflow between the bottom wall of the ventilation slot and the lower surface of the goggle lens. The ventilation slots also increase airflow to the bottom of the goggle lens, ensuring more uniform drying and thus improving the drying efficiency after printing on the goggle surface. This enhances the practicality of the tunnel drying device for goggle surface printing.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 For the present utility model Figure 1 Enlarged at point A;

[0023] Figure 3 This is a vertical cross-sectional view of the support block of this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the second sliding block structure of this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Processing table; 2. Conveying device; 3. Drying equipment; 4. Rubber base; 5. Support block; 6. First sliding groove; 7. Rotating rod; 8. Ventilation groove; 9. Placement column; 10. Ventilation groove; 11. Mounting groove; 12. Push block; 13. First bidirectional thread; 14. First sliding block; 15. First rotating block; 16. First rotating rod; 17. Second rotating block; 18. Rotating motor; 19. Bottom groove; 20. Rubber column; 21. Second bidirectional thread; 22. Return spring; 23. Second sliding groove; 24. Connecting groove; 25. First limiting block; 26. Second limiting block; 27. Second sliding block. Detailed Implementation

[0028] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0029] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0030] Please see Figures 1-5 As shown, this utility model is a tunnel drying device for printing on the surface of swimming goggles, including a processing table 1. The processing table 1 is equipped with a conveying device 2 and a drying device 3. Multiple rubber pads 4 are fixedly connected to the outer surface of the conveying device 2. Support blocks 5 are provided on the rubber pads 4. A uniform drying mechanism is provided on the upper surface of the support blocks 5. The uniform drying mechanism is used to uniformly dry the surface of the swimming goggles after printing. A stabilizing mechanism is provided between the rubber pads 4 and the support blocks 5. The stabilizing mechanism is used to prevent the presence of the support blocks 5 from affecting the normal operation of the conveying device 2, thereby ensuring the stability of the conveying device 2. Two first sliding grooves 6 are opened in the support blocks 5. Each of the first sliding grooves 6 is equipped with a pushing mechanism. A limiting mechanism is provided on the upper surface of the support blocks 5. The limiting mechanism is used to limit the position of the swimming goggles. A driving mechanism is provided on the right side of the support blocks 5. The driving mechanism is used to drive the limiting mechanism and the pushing mechanism to operate.

[0031] In use, the conveying device 2 is used to convey the swimming goggle lenses. During the conveying process, the swimming goggle lenses are fed into the drying equipment 3 for heating and drying. The swimming goggle lenses are placed on the uniform drying mechanism. The uniform drying mechanism reduces the contact area with the swimming goggle lenses and increases air circulation on the upper and lower surfaces of the swimming goggle lenses, thereby increasing the uniformity of drying on both sides of the swimming goggle lenses. When the drive mechanism is activated, it drives the pushing mechanism and the limiting mechanism to move up and down. The pushing mechanism moves downward to avoid contact with the swimming goggle lenses, thus facilitating the uniform drying of the swimming goggle lenses. The downward movement of the pushing mechanism pushes the swimming goggle lenses upward, thus pushing the swimming goggle lenses upward, making it easy to remove the swimming goggle lenses after drying. The limiting mechanism moves downward to restrict and position the swimming goggle lenses, preventing them from falling off the support block 5 due to the influence of the hot air during the drying process. The stabilizing mechanism is used to reduce the contact area between the support block 5 and the conveying device 2, preventing damage to the conveying device 2 during the conveying process.

[0032] In one embodiment, the uniform drying mechanism includes two ventilation slots 8, which are formed on the upper surface of the support block 5. Multiple placement columns 9 are fixedly connected to the inner wall of the ventilation slots 8. The ventilation slots 8 are arc-shaped. Multiple ventilation slots 10 are formed on the outer surfaces of the front and rear sides of the support block 5. The ventilation slots 10 communicate with the interior of the ventilation slots 8.

[0033] In addition, in practical applications, the goggle lens is placed on the placement column 9, which supports the goggle lens, allowing sufficient airflow between the bottom wall of the ventilation groove 8 and the lower surface of the goggle lens. The ventilation groove 10 further increases airflow to the bottom of the goggle lens, thereby ensuring more uniform drying of the goggle lens and making the drying efficiency of the goggle surface after printing higher, thus increasing the practicality of the tunnel drying device for goggle surface printing.

[0034] In addition, in specific applications, in this solution, the height of the placement post 9 is adapted to fit the upper surface of the placement post 9 and the lower surface of the lens, and the placement post 9 should be positioned to avoid the printing position.

[0035] In one embodiment, the stabilizing mechanism includes a bottom groove 19, which is formed on the lower surface of the support block 5. A plurality of rubber pillars 20 are fixedly connected to the upper surface of the rubber pad 4. The upper ends of the rubber pillars 20 are fixedly connected to the top wall of the bottom groove 19. The lower surface of the support block 5 is in contact with the upper surface of the rubber pad 4.

[0036] In addition, the rubber base pad 4 and the support block 5 are fixedly connected by multiple rubber pillars 20, thereby reducing the connection area between the support block 5 and the conveying device 2. Since the support block 5 is made of rigid material, it avoids the support block 5 from moving to the front and rear sides of the conveying device 2 and damaging the conveyor belt, thereby ensuring the stability of the tunnel drying device for printing on the surface of swimming goggles.

[0037] In one embodiment, the upper drive mechanism includes a rotary motor 18, which is fixedly connected to the right side surface of the support block 5. A second sliding groove 23 is provided in the support block 5, located between two first sliding grooves 6. A rotary output shaft of the rotary motor 18 is fixedly connected to a rotary rod 7. The left end of the rotary rod 7 rotates through the second sliding groove 23 and the two first sliding grooves 6, and the left end of the rotary rod 7 rotates out of the left side surface of the support block 5. Two sets of first bidirectional threads 13 are provided on the outer surface of the rotary rod 7, located in the corresponding first sliding grooves 6. A second bidirectional thread 21 is provided on the outer surface of the rotary rod 7, located in the second sliding groove 23.

[0038] In practical applications, when the rotating motor 18 is started, it can drive the rotating rod 7 to rotate. The rotation of the rotating rod 7 synchronously drives the two sets of first bidirectional threads 13 and second bidirectional threads 21 to rotate synchronously, thereby synchronously driving the limiting mechanism and the pushing mechanism.

[0039] In one embodiment, the upper limit mechanism includes two second sliding blocks 27, which are threaded onto two opposite sections of the second bidirectional thread 21. The upper surfaces of the second sliding blocks 27 are inclined, and the two second sliding blocks 27 are mirror images of each other. The lower surfaces of the second sliding blocks 27 are slidably connected to the bottom wall of the second sliding groove 23. Two second limiting blocks 26 are fixedly connected to the upper surface of the support block 5, and the two second limiting blocks 26 are mirror images of each other. The upper surface of the support block 5 has an opening... Two connecting grooves 24 are connected to the interior of the second sliding groove 23. Four return springs 22 are fixedly connected to the bottom wall of the second sliding groove 23. Two first limiting blocks 25 are provided at the upper ends of the four return springs 22. The first limiting blocks 25 are in the shape of an "L". The vertical blocks of the first limiting blocks 25 are slidably connected to the corresponding connecting grooves 24. The lower surface of the vertical blocks of the first limiting blocks 25 is fixedly connected to the upper ends of the corresponding two of the four return springs 22. The second limiting block 26 is also in the shape of an "L".

[0040] Furthermore, in practical applications, since both the second sliding block 27 and the second limiting block 26 are L-shaped, when placing the goggle lens, the upper surface of one side of the goggle lens contacts the lower surface of the horizontal plate of the second limiting block 26. Then, the rotating motor 18 is started, which drives the second bidirectional thread 21 to rotate. The rotation of the second bidirectional thread 21 synchronously drives the two second sliding blocks 27 to move in opposite directions. When the two second sliding blocks 27 approach each other, the inclined surface of the second sliding block 27 contacts the lower surface of the vertical block of the corresponding first limiting block 25, and pushes the first limiting block 25 to move upward. During this process, the return spring 22 is stretched and deformed. When the moving block 27 moves in opposite directions, under the release force of the return spring 22, it drives the second sliding block 27 to move downward and reset. During the downward movement of the second sliding block 27, the lower surface of its horizontal block contacts the upper surface of the other side of the swimming goggle lens, thereby limiting and fixing the lens between the second limiting block 26, the second sliding block 27 and the placement column 9, thus limiting the position of the swimming goggle lens, so that the position of the swimming goggle lens can be neatly transferred after drying, which makes it convenient for the subsequent robot to clamp the swimming goggle lens and transfer it to the next process for further processing. This makes the production of swimming goggle lenses highly automated, thereby improving the production efficiency of swimming goggle lenses and increasing the practicality of the tunnel drying device for printing on the surface of swimming goggles.

[0041] In one embodiment, the pushing mechanism includes two first sliding blocks 14, which are slidably connected in corresponding first sliding grooves 6. The two first sliding blocks 14 are threaded onto two opposite threads of corresponding first bidirectional threads 13. A first rotating block 15 is fixedly connected to the upper surface of the first sliding block 14. A first rotating rod 16 is rotatably connected to the first rotating block 15. The two corresponding first rotating rods 16 are mirror images of each other. A second rotating block 17 is rotatably connected to the end of the first rotating rod 16 away from the first rotating block 15. The bottom wall of the ventilation groove 8 has an installation groove 11 that communicates with the interior of the corresponding first sliding groove 6. A pushing block 12 is slidably connected in the installation groove 11. The two corresponding second rotating blocks 17 are fixedly connected to the lower surface of the pushing block 12. The first rotating rod 16 is inclined.

[0042] Furthermore, in specific applications, when the rotating motor 18 starts, it synchronously drives the first bidirectional thread 13 to rotate. The rotation of the first bidirectional thread 13 synchronously drives the corresponding two first sliding blocks 14 to move relative to each other or in opposite directions. During the relative movement of the two first sliding blocks 14, they synchronously drive the two first rotating blocks 15 to move synchronously, and then synchronously drive the corresponding two first rotating rods 16 to rotate. During this process, because the mounting groove 11 and the pushing block 12 have a limiting effect, the pushing block 12 can only move up and down. Therefore, during the rotation of the corresponding two first rotating rods 16, the pushing block 12 is driven to move up and down. The pushing block 12 contacts the lower surface of the swimming goggle lens, thereby pushing the swimming goggle lens away from the placement column 9, which makes it easier to remove the swimming goggle lens.

[0043] Furthermore, in specific applications, the thread pitches of the first bidirectional thread 13 and the second bidirectional thread 21 are different. The thread pitch of the second bidirectional thread 21 is greater than that of the first bidirectional thread 13, and thus the moving speed of the first limiting block 25 is greater than that of the pushing block 12.

[0044] In addition, in specific applications, the drying equipment 3 includes a drying chamber, heating components, a hot air blower, an air duct, a heating pipe, and a processing box, which is the prior art in the existing published patent: CN202321221613.9 A Fully Automatic Tunnel Drying Oven, and will not be described in detail here;

[0045] In addition, in specific applications, the conveying device 2 includes a motor, a driving roller, a driven roller, a sprocket, and a chain, which is the prior art in the existing published patent: CN202321221613.9 A Fully Automatic Tunnel Drying Oven, and will not be described in detail here;

[0046] Through the above technical solution, 1. by fixing the lens between the second limiting block 26, the second sliding block 27 and the placement column 9, the position of the swimming goggle lens is limited, so that the position of the swimming goggle lens after drying can be neatly conveyed, which makes it convenient for the subsequent robot to clamp the swimming goggle lens and transfer it to the next process for subsequent processing. This makes the production of swimming goggle lenses highly automated, thereby improving the production efficiency of swimming goggle lenses and increasing the practicality of the tunnel drying device for printing on the surface of swimming goggles.

[0047] 2. The rubber base pad 4 and the support block 5 are fixedly connected by multiple rubber pillars 20, thereby reducing the connection area between the support block 5 and the conveying device 2. Since the support block 5 is made of rigid material, it avoids the support block 5 from moving to the front and rear sides of the conveying device 2 and damaging the conveyor belt, thereby ensuring the stability of the tunnel drying device for printing on the surface of swimming goggles.

[0048] 3. Place the goggle lens on the placement column 9. The placement column 9 supports the goggle lens, allowing sufficient airflow between the bottom wall of the ventilation groove 8 and the lower surface of the goggle lens. The ventilation groove 10 further increases airflow to the bottom of the goggle lens, ensuring more uniform drying of the goggle lens. This results in higher drying efficiency after printing on the goggle surface, thus increasing the practicality of the tunnel drying device for goggle surface printing.

[0049] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tunnel drying apparatus for printing on the surface of swimming goggles, comprising a processing table (1), characterized in that, The processing table (1) is equipped with a conveying device (2) and a drying device (3). Multiple rubber pads (4) are fixedly connected to the outer surface of the conveying device (2). Support blocks (5) are provided on the rubber pads (4). A uniform drying mechanism is provided on the upper surface of the support block (5). The uniform drying mechanism is used to uniformly dry the surface of the swimming goggle lens after printing. A stabilizing mechanism is provided between the rubber pads (4) and the support block (5). The stabilizing mechanism is used to prevent the presence of the support block (5) from affecting the normal operation of the conveying device (2), thereby ensuring the stability of the operation of the conveying device (2). Two first sliding grooves (6) are opened in the support block (5). A pushing mechanism is provided in each of the first sliding grooves (6). A limiting mechanism is provided on the upper surface of the support block (5). The limiting mechanism is used to limit the position of the swimming goggle lens. A driving mechanism is provided on the right side of the support block (5). The driving mechanism is used to drive the limiting mechanism and the pushing mechanism to operate.

2. The tunnel drying device for printing on the surface of swimming goggles according to claim 1, characterized in that, The uniform drying mechanism includes two ventilation slots (8), which are opened on the upper surface of the support block (5). Multiple placement columns (9) are fixedly connected to the inner wall of the ventilation slots (8). The ventilation slots (8) are arc-shaped. Multiple ventilation slots (10) are opened on the outer surfaces of the front and rear sides of the support block (5). The ventilation slots (10) are connected to the interior of the ventilation slots (8).

3. The tunnel drying device for printing on the surface of swimming goggles according to claim 1, characterized in that, The stabilizing mechanism includes a bottom groove (19) which is opened on the lower surface of the support block (5). A plurality of rubber columns (20) are fixedly connected to the upper surface of the rubber pad (4). The upper end of the rubber column (20) is fixedly connected to the top wall of the bottom groove (19). The lower surface of the support block (5) is in contact with the upper surface of the rubber pad (4).

4. The tunnel drying device for printing on the surface of swimming goggles according to claim 1, characterized in that, The driving mechanism includes a rotary motor (18), which is fixedly connected to the right side surface of the support block (5). The support block (5) has a second sliding groove (23) located between two first sliding grooves (6). The rotary output shaft of the rotary motor (18) is fixedly connected to a rotating rod (7). The left end of the rotating rod (7) rotates through the second sliding groove (23) and the two first sliding grooves (6), and the left end of the rotating rod (7) rotates out of the left side surface of the support block (5). The outer surface of the rotating rod (7) has two sets of first bidirectional threads (13), which are located in the corresponding first sliding grooves (6). The outer surface of the rotating rod (7) has a second bidirectional thread (21), which is located in the second sliding groove (23).

5. The tunnel drying apparatus for printing on the surface of swimming goggles according to claim 4, characterized in that, The limiting mechanism includes two second sliding blocks (27), which are threaded onto two opposite threads of the second bidirectional thread (21). The upper surface of the second sliding block (27) is inclined, and the two second sliding blocks (27) are mirror images of each other. The lower surface of the second sliding block (27) is slidably connected to the bottom wall of the second sliding groove (23). The upper surface of the support block (5) is fixedly connected to two second limiting blocks (26), which are mirror images of each other. The upper surface of the support block (5) has two connecting grooves (24). Both of the connecting grooves (24) are connected to the interior of the second sliding groove (23). The bottom wall of the second sliding groove (23) is fixedly connected to four return springs (22). The upper ends of the four return springs (22) are provided with two first limiting blocks (25). The first limiting blocks (25) are in the shape of an "L". The vertical block of the first limiting block (25) is slidably connected to the corresponding connecting groove (24). The lower surface of the vertical block of the first limiting block (25) is fixedly connected to the upper ends of the two corresponding four return springs (22). The second limiting block (26) is also in the shape of an "L".

6. The tunnel drying apparatus for printing on the surface of swimming goggles according to claim 5, characterized in that, The pushing mechanism includes two first sliding blocks (14), which are slidably connected in the corresponding first sliding groove (6). The two first sliding blocks (14) are threaded onto the two opposite threads of the corresponding first bidirectional thread (13). A first rotating block (15) is fixedly connected to the upper surface of the first sliding block (14).

7. The tunnel drying apparatus for printing on the surface of swimming goggles according to claim 6, characterized in that, A first rotating rod (16) is rotatably connected to the first rotating block (15). The two corresponding first rotating rods (16) are set in a mirror image. A second rotating block (17) is rotatably connected to the end of the first rotating rod (16) away from the first rotating block (15). The bottom wall of the ventilation groove (8) is provided with an installation groove (11) that communicates with the interior of the corresponding first sliding groove (6). A push block (12) is slidably connected in the installation groove (11). The second rotating block (17) is fixedly connected to the lower surface of the push block (12). The first rotating rod (16) is set at an inclination.

Images