Tensioning structure for packaging film processing

Abstract

The utility model relates to the technical field of packaging film tensioning, in particular to a tensioning structure for packaging film processing, which comprises a conveying frame, one end of the conveying frame is fixedly connected with a first adjusting frame, and the other end of the conveying frame is fixedly connected with a second adjusting frame. Protective inner pads are arranged on the inner walls of the first adjusting frame and the second adjusting frame, one end of the first adjusting frame is fixedly connected with a feeding frame, and the other end of the second adjusting frame is fixedly connected with a discharging frame. By means of the conveying frame, the feeding frame, the discharging frame, the shrinking frame, the air control pump, the telescopic air bag, the jacking frame, the rotating shaft, the tensioning roller, the pressing air bag and the pressing strip, the equipment can conduct more stable up-down tensioning operation for packaging film machining, and in the actual using process, the equipment is convenient to use, and the practicability is high. A worker firstly penetrates in and penetrates out a packaging film needing to be tensioned and conveyed from the interior of a conveying frame and a feeding frame and a discharging frame at the two ends of the conveying frame.

Description

Technical Field

[0001] This utility model relates to the field of packaging film tensioning technology, specifically a tensioning structure for packaging film processing. Background Technology

[0002] Packaging film mainly refers to films used for packaging goods. It typically includes polyethylene film, biaxially oriented polyester film, BOPP film, and CPP film, etc. It is mainly used for packaging food, medicine, and textiles. Packaging film is mainly made by extruding a mixture of several different grades of polyethylene resin. It has puncture resistance and high strength. It is used to wrap goods stacked on pallets, making the packaged goods more stable and neat, and has a strong waterproof effect. It is widely used in foreign trade export, papermaking, hardware, plastics and chemicals, building materials, food, pharmaceutical and other industries.

[0003] For example, patent document CN 215625695 U discloses a rubber packaging film processing and conveying tensioning mechanism, including: a device frame, which is placed on the ground via bottom support legs, and has rod-like structures on the top left and right sides; a fixed roller, which is rotatably installed on the top left and right sides of the device frame; a support plate, which is slidably installed up and down inside a second fixed frame, and has equally spaced perforated structures on the left side of the support plate; a tensioning roller, which is rotatably installed longitudinally at the bottom of the support plate; and a limiting plate, which is slidably installed back and forth at the bottom of the support plate. A first fixed frame is welded to the top left and right sides of the device frame. This rubber packaging film processing and conveying tensioning mechanism not only facilitates automatic adjustment of the tension of the rubber packaging film without manual operation, resulting in high efficiency, but also facilitates adjustment for rubber packaging films of different widths.

[0004] However, when this structure is used for tensioning in actual packaging film processing, due to its own structural limitations, it can only use simple downward pressing to achieve the tensioning operation of the packaging film. Its tensioning capacity is limited, and it cannot provide a stable tensioning operation of the packaging film synchronously from top to bottom. At the same time, the equipment cannot guarantee a more stable positioning and conveying operation of the packaging film during the tensioning process, which cannot meet the daily use needs. Therefore, it is urgent to design a tensioning structure for packaging film processing to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a tensioning structure for packaging film processing, in order to solve the problems mentioned in the background art. When the existing structure is used for actual packaging film processing tensioning, due to its own structural limitations, it can only use simple downward pressing to achieve the tensioning operation of the packaging film. Its tensioning capacity is limited, and it cannot provide a stable tensioning operation of the packaging film synchronously from top to bottom. At the same time, the equipment cannot guarantee a more stable positioning and conveying operation of the packaging film during the tensioning process, and cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tensioning structure for packaging film processing, comprising a conveyor frame, wherein a first adjusting frame is fixedly connected to one end of the conveyor frame, and a second adjusting frame is fixedly connected to the other end of the conveyor frame, wherein protective pads are provided on the inner walls of the first adjusting frame and the second adjusting frame.

[0007] The feeding frame and the discharging frame are provided. One end of the first adjusting frame is fixedly connected to the feeding frame, and the other end of the second adjusting frame is fixedly connected to the discharging frame. Both the top end of the feeding frame and the bottom end of the discharging frame are fixedly connected to the shrinking frame. One end of the shrinking frame is equipped with a control air pump.

[0008] Preferably, the retractable frame is provided with a telescopic airbag inside, and a top bracket is fixedly connected to the bottom end of the telescopic airbag.

[0009] Preferably, the bottom two ends of the telescopic airbag are fixedly connected to a rotating shaft, and a tensioning roller is provided inside the rotating shaft.

[0010] Preferably, the feed rack and the discharge rack are provided with compression airbags inside, one at the top and one at the bottom, and a compression strip is fixedly connected to one end of the compression airbag.

[0011] Preferably, the conveyor frame has a conveying groove inside, and the inner wall of the conveying groove is fixedly connected with docking seats on the upper and lower parts.

[0012] Preferably, each of the docking seats is fixedly connected to a clamping seat, and a clamping roller is provided between the clamping seats.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This packaging film processing tensioning structure, through its conveyor frame, feeding frame, discharging frame, shrink frame, air control pump, telescopic airbag, top-connecting frame, rotating shaft, tension roller, pressing airbag, and pressing strip, enables the equipment to perform more stable vertical tensioning operations for packaging film processing. In actual use, the operator first inserts the packaging film to be tensioned and conveyed through the inside of the conveyor frame and the feeding and discharging frames at both ends. At this time, the packaging film at both ends is initially centrally pressed within the feeding and discharging frames by the upper and lower pressing airbags and pressing strips, ensuring stable conveying of the packaging film. Simultaneously, the air control pump on the vertically staggered shrink frame of the feeding and discharging frames is activated, causing the telescopic airbag inside the shrink frame to perform adaptive vertical extension and retraction operations. The top-connecting frame at one end and the tension roller connected by the rotating shaft are then adapted to fit onto the packaging film at both ends, performing synchronous upward and downward tensioning operations for the packaging film, ensuring tensioning stability and demonstrating the practicality of the equipment design.

[0015] This packaging film processing tensioning structure, through the setting of a conveyor frame, a first adjusting frame, a second adjusting frame, a protective inner pad, a feeding frame, a discharging frame, a conveying trough, a docking seat, a pressing seat, and a pressing roller, further improves the overall performance of the equipment. During daily use, the operator can perform a center conveying operation on the conveying trough inside the conveyor frame. During the conveying process, the packaging film can be centrally clamped and fixed by the pressing seats and pressing rollers at the upper and lower docking seats, which makes the tension at both ends more stable. At the same time, the tensioned packaging film can be adjusted up and down inside the first and second adjusting frames at both ends of the conveyor frame, reflecting the comprehensiveness of the equipment design. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the retractable frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the conveyor frame of this utility model;

[0019] Figure 4 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Conveyor frame; 2. First adjusting frame; 3. Second adjusting frame; 4. Protective inner pad; 5. Feeding frame; 6. Discharging frame; 7. Shrinking frame; 8. Air pump; 9. Telescopic airbag; 10. Top connecting frame; 11. Rotating shaft; 12. Tensioning roller; 13. Pressing airbag; 14. Pressing strip; 15. Conveying trough; 16. Connecting seat; 17. Pressing seat; 18. Pressing roller. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 One embodiment provided by this utility model:

[0023] A tensioning structure for packaging film processing includes a conveyor frame 1. One end of the conveyor frame 1 is fixedly connected to a first adjusting frame 2, and the other end of the conveyor frame 1 is fixedly connected to a second adjusting frame 3. The inner walls of the first adjusting frame 2 and the second adjusting frame 3 are provided with protective inner pads 4. A conveying groove 15 is opened inside the conveyor frame 1. The inner walls of the conveying groove 15 are fixedly connected to the upper and lower connecting seats 16. A pressing seat 17 is fixedly connected between the connecting seats 16. A pressing roller 18 is arranged between the pressing seats 17. The packaging film is centrally conveyed in the conveying groove 15 inside the conveyor frame 1. During the conveying process, the packaging film can be centrally clamped and fixed by the pressing seats 17 and pressing rollers 18 at the upper and lower connecting seats 16.

[0024] The feeding frame 5 and the discharging frame 6 are connected as follows: one end of the first adjusting frame 2 is fixedly connected to the feeding frame 5, and the other end of the second adjusting frame 3 is fixedly connected to the discharging frame 6. A shrinking frame 7 is fixedly connected to both the top of the feeding frame 5 and the bottom of the discharging frame 6. An air pump 8 is installed at one end of the shrinking frame 7. A telescopic airbag 9 is installed inside the shrinking frame 7. A top connecting frame 10 is fixedly connected to the bottom of the telescopic airbag 9. Rotating shafts 11 are fixedly connected to both ends of the bottom of the telescopic airbag 9. Tensioning rollers 12 are installed inside the rotating shafts 11. The feeding rack 5 and the discharging rack 6 are equipped with pressing airbags 13 inside, one end of which is fixedly connected to a pressing strip 14. The air pump 8 on the upper and lower staggered shrink frame 7 of the feeding rack 5 and the discharging rack 6 is started respectively, so that it drives the telescopic airbag 9 inside the shrink frame 7 to perform a matching upper and lower telescopic operation. The top connecting frame 10 at one end and the tensioning roller 12 connected by the rotating shaft 11 are adapted to the packaging film at both ends to perform a synchronous upward and downward tensioning operation of the packaging film.

[0025] Working principle: During use, the operator first inserts the packaging film to be tensioned and conveyed into the conveyor frame 1 and through the infeed frame 5 and the outlet frame 6 at both ends. At this time, the packaging film at both ends can be initially centrally pressed inside the infeed frame 5 and the outlet frame 6 by the upper and lower pressing airbags 13 and pressing strips 14 to ensure the stability of the packaging film conveying. At the same time, the air pump 8 on the upper and lower staggered shrink frame 7 of the infeed frame 5 and the outlet frame 6 is started respectively, which drives the telescopic airbag 9 inside the shrink frame 7 to perform an appropriate up and down telescopic operation, which connects the top frame 10 at one end and the tension roller 12 connected by the rotating shaft 11. The adaptable top is attached to the packaging film at both ends to perform synchronous upward and downward tensioning of the packaging film, ensuring tension stability. In daily use, the staff can perform a center transport operation on the packaging film at the transport groove 15 inside the transport frame 1. During the transport process, the packaging film can be centrally clamped and fixed by the pressure seat 17 and pressure roller 18 at the upper and lower docking seats 16, which makes the tension at both ends more stable. At the same time, the tensioned packaging film can be adjusted up and down in accordance with the first adjustment frame 2 and the second adjustment frame 3 at both ends of the transport frame 1. The above is the complete working principle of this utility model.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tensioning structure for packaging film processing, comprising a conveyor frame (1), characterized in that: One end of the conveyor frame (1) is fixedly connected to a first adjusting frame (2), and the other end of the conveyor frame (1) is fixedly connected to a second adjusting frame (3). The inner walls of the first adjusting frame (2) and the second adjusting frame (3) are provided with protective pads (4). Feed rack (5) and discharge rack (6), one end of the first adjusting frame (2) is fixedly connected to the feed rack (5), the other end of the second adjusting frame (3) is fixedly connected to the discharge rack (6), the top of the feed rack (5) and the bottom of the discharge rack (6) are both fixedly connected to the shrink rack (7), and one end of the shrink rack (7) is provided with a control air pump (8).

2. The tensioning structure for packaging film processing according to claim 1, characterized in that: The retractable frame (7) is provided with a telescopic airbag (9) inside, and the bottom end of the telescopic airbag (9) is fixedly connected to a top bracket (10).

3. The tensioning structure for packaging film processing according to claim 2, characterized in that: The bottom ends of the telescopic airbag (9) are fixedly connected to a rotating shaft (11), and a tensioning roller (12) is provided inside the rotating shaft (11).

4. The tensioning structure for packaging film processing according to claim 1, characterized in that: The feed rack (5) and the discharge rack (6) are equipped with compression airbags (13) inside, one end of which is fixedly connected to a compression strip (14).

5. The tensioning structure for packaging film processing according to claim 1, characterized in that: The conveyor frame (1) has a conveying groove (15) inside, and the inner wall of the conveying groove (15) is fixedly connected with a docking seat (16) on the upper and lower sides.

6. The tensioning structure for packaging film processing according to claim 5, characterized in that: Each of the docking seats (16) is fixedly connected to a pressing seat (17), and a pressing roller (18) is provided between the pressing seats (17).

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