A high-strength heat-shrinkable film blowing device

Abstract

This utility model discloses a high-strength heat-shrinkable film blowing device, relating to the field of heat-shrinkable technology. It includes a blowing table with a conveying groove at its top. A transmission groove is formed on the bottom surface of the inner wall of the conveying groove. A conveyor belt is installed on the inner wall of the transmission groove, and multiple positioning plates are fixedly connected to the surface of the conveyor belt. A fixed frame is fixedly connected to the top of the blowing table, and a fan groove is formed at the top of the fixed frame. A hot air fan is installed inside the fan groove. Storage grooves are formed on both sides of the inner wall of the conveying groove, and each storage groove contains a guide air blowing assembly. The distance between the two guide plates can be adjusted to accommodate packaging boxes of different sizes. Simultaneously, hot air can be delivered to the inside of the guide plates through a connecting pipe, enabling heat shrinking of the sealing film on both sides of the packaging box. Combined with an air outlet plate, this allows for multi-directional heat shrinking of the sealing film on the outer surface of the packaging box, further improving the practicality of the guide plate.

Description

Technical Field

[0001] This utility model relates to the field of heat shrink technology, and in particular to a high-strength heat shrink film blowing device. Background Technology

[0002] Heat shrink packaging is one of the more advanced packaging methods on the market. Heat shrink film is used for the sales and transportation of various products. Its main function is to stabilize, cover and protect the product. The shrink film is wrapped around the product or package and heated to make the shrink film tightly wrap the product or package, fully displaying the appearance of the item, improving the product's marketability, and increasing its aesthetics and perceived value. At the same time, the packaged item can be sealed, moisture-proof and pollution-proof, and protect the goods from external impacts, providing a certain degree of cushioning.

[0003] Existing heat shrink blown film devices typically have guide plates on both sides inside to prevent the packaging box from shifting during heat shrinking. However, the guide plates on both sides of traditional heat shrink blown film devices are generally fixed and difficult to adjust. Furthermore, the guide plates on both sides do not have the function of heat shrinking both sides of the packaging box, making it inconvenient to perform all-round heat shrinking of the packaging box. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a high-strength heat shrink film blowing device. This device can solve the problem that the guide plates on both sides of the traditional heat shrink blowing device are generally fixed and difficult to adjust. At the same time, the guide plates on both sides do not have the function of heat shrinking both sides of the packaging box, thus making it inconvenient to perform all-round heat shrinking treatment on the packaging box.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength heat shrinkable film blowing device, comprising a blowing platform, a conveying groove at the top of the blowing platform, a transmission groove at the bottom of the inner wall of the conveying groove, a conveyor belt on the inner wall of the transmission groove, multiple positioning plates fixedly connected to the surface of the conveyor belt, a fixed frame fixedly connected to the top of the blowing platform, a fan groove at the top of the fixed frame, a hot air fan inside the fan groove, and receiving grooves on both sides of the inner wall of the conveying groove, with a guide blowing assembly inside each of the two receiving grooves.

[0006] Preferably, the airflow guiding and blowing assembly includes a guide plate with a hollow interior. The outer surface of the guide plate is slidably connected to the inner wall of the receiving groove. Multiple side air outlets are provided on one side of the guide plate, and a sliding groove is provided at the top of the guide plate. The interior of the sliding groove is connected to the interior of the guide plate.

[0007] Preferably, the inner wall of the sliding groove is slidably connected to a connecting pipe, and elastic pads are fixedly connected to both sides of the connecting pipe. The opposite ends of the two elastic pads are fixedly connected to both sides of the inner wall of the sliding groove, and there are two flow guiding and blowing components, which are respectively set inside the storage groove.

[0008] Preferably, the bottom surface of the inner wall of the fan trough is provided with a circular through groove, and the top surface of the inner wall of the fixed frame is provided with an air outlet plate. The interior of the air outlet plate is a hollow structure and the interior of the air outlet plate is connected to the interior of the circular through groove.

[0009] Preferably, the inner wall of the circular through groove has two curved through grooves mirrored on it, and the top ends of the two connecting pipes extend into the interior of the corresponding curved through grooves and are fixedly connected to the inner wall of the corresponding curved through grooves.

[0010] Preferably, the blown film stage has threaded grooves on both sides, and the interior of the two threaded grooves is connected to the interior of the corresponding receiving groove. The inner walls of the two threaded grooves are threaded with adjusting screws.

[0011] Preferably, the opposite ends of the two adjusting screws are rotatably connected to the opposite ends of the two guide plates, and a turntable is fixedly connected to the opposite ends of the two adjusting screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The high-strength heat shrink film blowing device can adjust the distance between the two guide plates to adapt to different sizes of packaging boxes by setting the guide plates. At the same time, it can also deliver hot air to the inside of the guide plates through the connecting pipe, which can heat shrink the sealing film on both sides of the packaging box. In addition, with the air outlet plate, the sealing film on the outer surface of the packaging box can be heat-shrinked in multiple directions, which further improves the practicality of the guide plate.

[0014] (2) The high-strength heat shrinkable film blowing device can seal the inner wall of the sliding groove to a certain extent through the action of the elastic pad, so that when the connecting pipe slides, the airflow conveyed inside the guide plate of the connecting pipe is not easily leaked, thereby improving the sealing performance of the connecting pipe when it moves. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a schematic diagram of a high-strength heat-shrinkable film blowing device according to the present invention;

[0017] Figure 2 This is a schematic diagram of the interior of the fixed frame of this utility model;

[0018] Figure 3This is a schematic diagram of the guide plate structure of this utility model;

[0019] Figure 4 This is a plan view of the storage slot of this utility model.

[0020] Reference numerals: 1. Film blowing table; 2. Fixed frame; 3. Fan trough; 4. Hot air fan; 5. Conveying trough; 6. Transmission trough; 7. Conveyor belt; 8. Positioning plate; 9. Storage trough; 10. Guide plate; 11. Side air outlet; 12. Turntable; 13. Circular through-slot; 14. Bent through-slot; 15. Connecting pipe; 16. Air outlet plate; 17. Threaded groove; 18. Adjusting screw; 19. Sliding groove; 20. Elastic tension pad. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0024] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0025] Please see Figure 1-4This utility model provides a technical solution: a high-strength heat shrinkable film blowing device, including a blowing platform 1, a conveying groove 5 at the top of the blowing platform 1, a transmission groove 6 at the bottom of the inner wall of the conveying groove 5, a conveyor belt 7 on the inner wall of the transmission groove 6 (the conveyor belt 7 is an existing structure and will not be described in detail here), a plurality of positioning plates 8 fixedly connected to the surface of the conveyor belt 7, a fixed frame 2 fixedly connected to the top of the blowing platform 1, a fan groove 3 at the top of the fixed frame 2, a hot air fan 4 inside the fan groove 3, and a collection groove 9 on both sides of the inner wall of the conveying groove 5, and a guide air blowing component inside each of the two collection grooves 9.

[0026] Furthermore, the airflow guiding and blowing assembly includes a guide plate 10, which has a hollow internal structure. The outer surface of the guide plate 10 is slidably connected to the inner wall of the storage groove 9. Multiple side air outlets 11 are provided on one side of the guide plate 10, and a sliding groove 19 is provided at the top of the guide plate 10. The interior of the sliding groove 19 is connected to the interior of the guide plate 10. A connecting pipe 15 is slidably connected to the inner wall of the sliding groove 19. Elastic pads 20 are fixedly connected to both sides of the connecting pipe 15. The opposite ends of the two elastic pads 20 are fixedly connected to the two sides of the inner wall of the sliding groove 19. There are two airflow guiding and blowing assemblies, which are respectively set inside the storage groove 9.

[0027] Furthermore, a circular through groove 13 is provided on the bottom surface of the inner wall of the fan trough 3, and an air outlet plate 16 is provided on the top surface of the inner wall of the fixed frame 2. The air outlet plate 16 has a hollow structure inside and is connected to the inside of the circular through groove 13. Multiple air blowing holes are provided at the bottom end. Two curved through grooves 14 are mirrored on the inner wall of the circular through groove 13. The top ends of the two connecting pipes 15 extend into the interior of the corresponding curved through grooves 14 and are fixedly connected to the inner wall of the corresponding curved through grooves 14. Threaded grooves 17 are provided on both sides of the blowing film table 1. The interior of the two threaded grooves 17 is connected to the interior of the corresponding receiving grooves 9. Adjusting screws 18 are threadedly connected to the inner walls of the two threaded grooves 17. The opposite ends of the two adjusting screws 18 are rotatably connected to the opposite ends of the two guide plates 10. Turntables 12 are fixedly connected to the opposite ends of the two adjusting screws 18.

[0028] Furthermore, when the staff uses the device, after heat-shrink sealing the packaging box, the packaging box is placed between the two positioning plates 8. Then, by rotating the turntable 12, the adjusting screw 18 is rotated, and the adjusting screw 18 moves the guide plate 10, so that the two guide plates 10 can be adjusted individually, and the distance between the two guide plates 10 can be adjusted to accommodate packaging boxes of different sizes. Then, when the guide plate 10 moves, the connecting pipe 15 for ventilation connected to the top of the guide plate 10 slides on the inner wall of the sliding groove 19. Through the action of the elastic pad 20, the inner wall of the sliding groove 19 can be sealed to a certain extent, so that when the connecting pipe 15 slides, the airflow delivered by the connecting pipe 15 to the inside of the guide plate 10 is not easily leaked, thereby improving the sealing performance of the connecting pipe 15 when it moves.

[0029] Furthermore, the hot air blower 4 is then activated by the staff. The hot airflow inside the blower trough 3 flows downward into the circular channel 13. Then, through the circular channel 13, the hot airflow is diverted to the air outlet plate 16 and the curved channels 14 on both sides. The airflow inside the curved channels 14 on both sides enters the guide plates 10 on both sides through the connecting pipes 15 on both sides, and then flows out through the multiple side air outlets 11 on both sides, thereby heat-shrinking the sealing film on both sides of the packaging box. In addition, the air outlet plate 16 on the top surface of the fixed frame 2 heat-shrinks the sealing film on the top of the packaging box, thereby heat-shrinking the sealing film on the outer surface of the packaging box in multiple directions, thus improving the practicality of the blown film device.

[0030] Furthermore, by setting the deflector plate 10, the distance between the two deflector plates 10 can be adjusted to accommodate packaging boxes of different sizes. At the same time, hot air can be delivered to the inside of the deflector plate 10 through the connecting pipe 15, which can heat shrink the sealing film on both sides of the packaging box. In conjunction with the air outlet plate 16, the sealing film on the outer surface of the packaging box can be heat-shrinked in multiple directions, further improving the practicality of the deflector plate 10.

[0031] Working principle: When the operator uses the device, after heat-shrink sealing the packaging box, the box is placed between two positioning plates 8. Rotating the turntable 12 drives the adjusting screw 18 to rotate, which in turn moves the guide plate 10, allowing for individual adjustment of the distance between the two guide plates 10 to accommodate different sized packaging boxes. As the guide plates 10 move, the ventilation connecting pipe 15 connected to the top of the guide plate 10 slides along the inner wall of the sliding groove 19. The elastic pad 20 provides a certain degree of sealing to the inner wall of the sliding groove 19, allowing the connecting pipe 15 to slide smoothly. This ensures that the airflow delivered inside the guide plate 10 by the connecting pipe 15 is not easily leaked. Then, the hot air blower 4 is started by the staff. The hot airflow inside the fan slot 3 will enter the interior of the circular channel 13. Then, through the interior of the circular channel 13, the hot airflow is diverted to the interior of the air outlet plate 16 and the interior of the curved channels 14 on both sides. The airflow inside the curved channels 14 on both sides will enter the interior of the guide plates 10 on both sides through the connecting pipes 15 on both sides, and then flow out through the multiple side air outlets 11 opened on both sides, thereby heat-shrinking the sealing film on both sides of the packaging box. In addition, the air outlet plate 16 on the top surface of the fixed frame 2 will heat-shrink the sealing film on the top of the packaging box, thereby heat-shrinking the sealing film on the outer surface of the packaging box in multiple directions.

[0032] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-strength heat-shrinkable film blowing device, comprising a blowing table (1), characterized in that: The top of the blown film stage (1) is provided with a conveying groove (5), the bottom surface of the inner wall of the conveying groove (5) is provided with a transmission groove (6), and the inner wall of the transmission groove (6) is provided with a conveyor belt (7). Among them, multiple positioning plates (8) are fixedly connected to the surface of the conveyor belt (7); Among them, the top of the blown film stage (1) is fixedly connected to a fixed frame (2), the top of the fixed frame (2) is provided with a fan slot (3), and a hot air fan (4) is installed inside the fan slot (3). Among them, the inner walls of the conveying trough (5) are provided with storage troughs (9) on both sides, and the interior of the two storage troughs (9) is provided with a flow guiding and blowing assembly; The airflow guiding assembly includes a guide plate (10), the interior of which is a hollow structure; The outer surface of the guide plate (10) is slidably connected to the inner wall of the storage groove (9), and multiple side air outlets (11) are opened on one side of the guide plate (10). Among them, the top of the guide plate (10) is provided with a sliding groove (19), and the interior of the sliding groove (19) is connected to the interior of the guide plate (10); The inner wall of the sliding groove (19) is slidably connected to a connecting pipe (15); Among them, elastic pads (20) are fixedly connected to both sides of the connecting pipe (15), and the opposite ends of the two elastic pads (20) are fixedly connected to both sides of the inner wall of the sliding groove (19). There are two airflow blowing components, which are respectively set inside the storage slot (9).

2. The high-strength heat-shrinkable film blowing device according to claim 1, characterized in that: A circular through groove (13) is provided on the bottom surface of the inner wall of the fan trough (3); Among them, the top surface of the inner wall of the fixed frame (2) is provided with an air outlet plate (16), the interior of the air outlet plate (16) is a hollow structure, and the interior of the air outlet plate (16) is connected to the interior of the circular through groove (13).

3. The high-strength heat-shrinkable film blowing device according to claim 2, characterized in that: The inner wall of the circular through groove (13) has two curved through grooves (14) mirrored. The top ends of the two connecting pipes (15) extend into the interior of the corresponding curved through groove (14) and are fixedly connected to the inner wall of the corresponding curved through groove (14).

4. The high-strength heat-shrinkable film blowing device according to claim 3, characterized in that: Both sides of the blown film stage (1) are provided with threaded grooves (17). The interiors of the two threaded grooves (17) are connected to the interiors of the corresponding storage grooves (9), and the inner walls of the two threaded grooves (17) are threaded with adjusting screws (18).

5. The high-strength heat-shrinkable film blowing device according to claim 4, characterized in that: The opposite ends of the two adjusting screws (18) are rotatably connected to the opposite ends of the two guide plates (10), and the opposite ends of the two adjusting screws (18) are fixedly connected to a turntable (12).

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