Food packaging film unwinding mechanism

Abstract

The utility model relates to a kind of food packaging film unwinding mechanism, including unwinding equipment, unwinding disc is installed in the inside of unwinding equipment, and the outside of unwinding disc is wound with packaging film;One side of unwinding disc is also provided with the adaptive speed regulation module being fixedly connected with unwinding equipment;Adaptive speed regulation module includes the mounting bracket being fixedly connected with unwinding equipment, the inside fixed connection of mounting bracket is symmetrically set with fixed side plate, telescopic mechanism is installed in the inside of fixed side plate, and the inside of telescopic mechanism upper portion is all fixedly connected with the guide roller for guiding purpose to packaging film;Compared with prior art, the beneficial effects of the utility model lie in: when packaging film is gradually released, it will extrude guide roller, when guide roller is driven by telescopic mechanism and contacts with the pressure sensor below, the value of pressure sensor exceeds setting threshold, and the rotation speed of unwinding motor of external controller control unwinding equipment is accelerated, ensure the release speed of packaging film, guarantee subsequent packaging quality.

Description

Technical Field

[0001] This utility model relates to the field of food packaging, and in particular to a food packaging film unwinding mechanism. Background Technology

[0002] In the food processing process, the final step is food packaging, which requires the use of packaging film. Generally, an automatic unwinding mechanism automatically releases the packaging film, and then a specialized packaging unit processes the food packaging. When the automatic unwinding mechanism is in use, because the outer diameter of the packaging film roll gradually decreases, the length of the packaging film released from the large roll and the small roll are different and need to be adjusted in time. However, the existing unwinding mechanism cannot adjust automatically, or it uses a free release method for unwinding, which easily causes the unwound film roll to be loose and messy, which is not conducive to the subsequent food packaging work. Therefore, to address the above problems, a food packaging film unwinding mechanism is proposed. Utility Model Content

[0003] In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to provide a food packaging film unwinding mechanism. When the guide roller is driven by the telescopic mechanism and contacts the pressure sensor below, if the pressure sensor value exceeds the set threshold, the unwinding motor of the unwinding device is controlled by an external controller to increase the rotation speed, thereby ensuring the release speed of the packaging film and guaranteeing the subsequent packaging quality.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a food packaging film unwinding mechanism, comprising an unwinding device, an unwinding reel, and a packaging film; The unwinding reel is installed inside the unwinding equipment, and the outside of the unwinding reel is wrapped with packaging film; An adaptive speed control module is also provided on one side of the unwinding reel, which is fixedly connected to the unwinding equipment; The adaptive speed control module includes a mounting frame that is fixedly connected to the unwinding equipment. The inner side of the mounting frame is fixedly connected to symmetrically arranged fixed side plates. The inside of the fixed side plates is equipped with a telescopic mechanism, and the inside of each telescopic mechanism is fixedly connected to guide rollers for guiding the packaging film.

[0005] Furthermore, multiple sets of vertically arranged plates are provided on the inner side of the fixed side plate, and pressure sensors are fixedly connected to the top of each vertical plate.

[0006] Furthermore, the pressure sensors are all located directly below the guide rollers.

[0007] In the food processing process, the final step is packaging the food, which requires the use of packaging film. Generally, an automatic unwinding mechanism automatically releases the packaging film, and then a specialized packaging unit processes the food. When using the automatic unwinding mechanism, because the outer diameter of the packaging film roll gradually decreases, the length of the released film from large and small rolls differs and needs to be adjusted promptly. Existing unwinding mechanisms cannot automatically adjust, or they use a free-release method, which easily results in loose and messy unwound film rolls, hindering subsequent food packaging. This device, however, installs a rotatable guide roller below the release end of the packaging film. The packaging film contacts the guide roller, thus guiding it and ensuring smooth movement. Simultaneously, as the packaging film is gradually released, it squeezes the guide roller. When the guide roller, driven by a telescopic mechanism, contacts a pressure sensor below, and the pressure sensor reading exceeds a set threshold, it indicates that the packaging film is too tight. An external controller then controls the unwinding motor of the unwinding equipment to increase its rotation speed, thereby ensuring the release speed of the packaging film and guaranteeing the subsequent packaging quality.

[0008] Furthermore, the telescopic mechanism includes a fixed frame that is fixedly connected to the fixed side plate. Sliding plates are slidably connected inside the fixed frame. A connecting plate is fixedly connected to the top of the sliding plate. A connecting platform is fixedly connected to the other end of the connecting plate. A fixed ring is fixedly connected to the top of the connecting platform. The inner side of the fixed ring is rotatably connected to the guide roller.

[0009] Furthermore, the outer side of the connecting platform is slidably connected to the fixed side plate through a groove inside the fixed side plate.

[0010] Furthermore, a spring is fixedly connected to the bottom of the sliding plate, and the other end of the spring is fixedly connected to the fixed frame.

[0011] Furthermore, the mounting frame is configured in a C-shape, and both ends of the mounting frame are fixedly connected to the unwinding equipment.

[0012] When the packaging film is squeezed by the guide roller, the guide roller drives the fixed rings and connecting platform at both ends to squeeze the connecting plate. The connecting plate squeezes the sliding plate, thereby compressing the spring of the sliding plate and realizing the downward movement of the guide roller. This ensures that the packaging film is adaptively adjusted to a certain extent and guarantees the quality of the packaging film.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. A rotatable guide roller is installed below the release end of the packaging film. The packaging film contacts the guide roller, thus guiding it and ensuring that the packaging film can move smoothly. At the same time, as the packaging film is gradually released, it will squeeze the guide roller. When the guide roller contacts the pressure sensor below under the drive of the telescopic mechanism, if the pressure sensor value exceeds the set threshold, it indicates that the packaging film is too tight. The unwinding motor of the unwinding equipment is controlled by an external controller to increase the rotation speed of the unwinding equipment, thereby ensuring the release speed of the packaging film and ensuring the subsequent packaging quality. 2. Furthermore, when the packaging film is squeezed by the guide roller, the guide roller drives the fixed rings and connecting platform at both ends to squeeze the connecting plate. The connecting plate squeezes the sliding plate, thereby compressing the spring of the sliding plate and realizing the downward movement of the guide roller. This ensures that the packaging film is adaptively adjusted to a certain extent and guarantees the quality of the packaging film. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adaptive speed control module structure of this utility model; Figure 3 For the present utility model Figure 2 A schematic diagram of the structure at point A; Figure 4 This is a schematic diagram of the telescopic mechanism of this utility model.

[0015] Legend: 1. Unwinding device; 2. Unwinding reel; 3. Packaging film; 4. Adaptive speed control module; 401. Mounting frame; 402. Fixed side plate; 403. Vertical plate; 404. Guide roller; 405. Fixing ring; 406. Fixing frame; 407. Sliding plate; 408. Spring; 409. Connecting plate; 410. Connecting platform; 411. Pressure sensor. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] like Figure 1-4 As shown, a food packaging film unwinding mechanism includes an unwinding device 1, an unwinding reel 2, and a packaging film 3; The unwinding reel 2 is installed inside the unwinding device 1, and the outer side of the unwinding reel 2 is wrapped with packaging film 3; An adaptive speed control module 4, which is fixedly connected to the unwinding device 1, is also provided on one side of the unwinding reel 2; The adaptive speed control module 4 includes a mounting frame 401 that is fixedly connected to the unwinding device 1. The mounting frame 401 has symmetrically arranged fixed side plates 402 fixedly connected to its inner side. The fixed side plates 402 have telescopic mechanisms installed inside, and guide rollers 404 for guiding the packaging film 3 are fixedly connected above and inside the telescopic mechanisms.

[0018] The inner side of the fixed side plate 402 is also provided with a number of vertical plates 403 arranged vertically, and pressure sensors 411 are fixedly connected to the top of each vertical plate 403.

[0019] All pressure sensors 411 are located directly below the guide roller 404.

[0020] In the food processing process, the final step is food packaging, which requires the use of packaging film. Generally, an automatic unwinding mechanism automatically releases the packaging film, and then a specialized packaging unit processes the food. When using the automatic unwinding mechanism, because the outer diameter of the packaging film roll gradually decreases, the length of the released film from large and small rolls differs and needs to be adjusted promptly. Existing unwinding mechanisms cannot automatically adjust, or they use a free-release method, which easily results in loose and messy unwound film rolls, hindering subsequent food packaging. This device, however, addresses this issue by using a packaging film with a 3-inch diameter... A rotatable guide roller 404 is installed below the release end. The packaging film 3 contacts the guide roller 404, thereby guiding the packaging film 3 and ensuring that the packaging film 3 can move smoothly. At the same time, as the packaging film 3 is gradually released, it will squeeze the guide roller 404. When the guide roller 404 contacts the pressure sensor 411 below under the drive of the telescopic mechanism, if the value of the pressure sensor 411 exceeds the set threshold, it indicates that the packaging film 3 is too tight. The unwinding motor of the unwinding device 1 is controlled by the external controller to increase the rotation speed, thereby ensuring the release speed of the packaging film 3 and ensuring the quality of subsequent packaging and printing images. The unwinding device 1, pressure sensor 411, and control unit work together to ensure the normal operation of the device. Their control principles and control circuits are all existing mature technologies, so they will not be described in detail here.

[0021] The telescopic mechanism includes a fixed frame 406 fixedly connected to the fixed side plate 402. Sliding plates 407 are slidably connected inside the fixed frame 406. A connecting plate 409 is fixedly connected to the top of the sliding plate 407. A connecting platform 410 is fixedly connected to the other end of the connecting plate 409. A fixing ring 405 is fixedly connected to the top of the connecting platform 410. The inner side of the fixing ring 405 is rotatably connected to the guide roller 404.

[0022] The outer side of the connecting platform 410 is slidably connected to the fixed side plate 402 through a groove inside the fixed side plate 402.

[0023] A spring 408 is fixedly connected to the bottom of the sliding plate 407, and the other end of the spring 408 is fixedly connected to the fixed frame 406.

[0024] The mounting frame 401 is configured in a C-shape, and both ends of the mounting frame 401 are fixedly connected to the unwinding device 1.

[0025] When the packaging film 3 is pressed against the guide roller 404, the guide roller 404 drives the fixed rings 405 at both ends and the connecting platform 410 to press against the connecting plate 409. The connecting plate 409 presses against the sliding plate 407, thereby causing the sliding plate 407 to compress the spring 408, realizing the downward movement of the guide roller 404, ensuring that the packaging film 3 is adaptively adjusted to a certain extent, and guaranteeing the quality of the packaging film 3. The inner side of the fixing ring 405 is rotatably connected to both ends of the guide roller 404 to ensure that the guide roller 404 rotates smoothly and to ensure normal guidance of the packaging film 3. In actual use, the packaging film 3 is stretched obliquely downward to stabilize its contact with the surface of the guide roller 404 and move.

[0026] Finally, it should be noted that the above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A food packaging film unwinding mechanism, comprising an unwinding device (1), an unwinding reel (2), and a packaging film (3), characterized in that: The unwinding reel (2) is installed inside the unwinding device (1), and the outside of the unwinding reel (2) is wrapped with packaging film (3). An adaptive speed control module (4) is also provided on one side of the unwinding reel (2) and is fixedly connected to the unwinding device (1). The adaptive speed control module (4) includes a mounting frame (401) fixedly connected to the unwinding device (1). The mounting frame (401) has fixed side plates (402) arranged symmetrically connected to its inner side. The fixed side plates (402) have telescopic mechanisms installed inside. The telescopic mechanisms are all fixedly connected to guide rollers (404) for guiding the packaging film (3). The inner side of the fixed side plate (402) is also provided with a number of vertical plates (403) arranged vertically, and a pressure sensor (411) is fixedly connected to the top of each vertical plate (403). The telescopic mechanism includes a fixed frame (406) fixedly connected to the fixed side plate (402). The fixed frame (406) is slidably connected to a sliding plate (407). A connecting plate (409) is fixedly connected to the top of the sliding plate (407). A connecting platform (410) is fixedly connected to the other end of the connecting plate (409). A fixing ring (405) is fixedly connected to the top of the connecting platform (410). The inner side of the fixing ring (405) is rotatably connected to the guide roller (404). The outer side of the connecting platform (410) is slidably connected to the fixed side plate (402) through a groove opened inside the fixed side plate (402); A spring (408) is fixedly connected to the bottom of the sliding plate (407), and the other end of the spring (408) is fixedly connected to the fixed frame (406).

2. The food packaging film unwinding mechanism according to claim 1, characterized in that: The mounting frame (401) is arranged in a C-shape, and both ends of the mounting frame (401) are fixedly connected to the unwinding device (1).

3. The food packaging film unwinding mechanism according to claim 1, characterized in that: The pressure sensors (411) are all located directly below the guide rollers (404).

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