Auxiliary tensioning device for plastic film

Abstract

The utility model discloses an auxiliary tensioning device for a plastic film, and relates to the technical field of tensioning devices, the auxiliary tensioning device comprises a rack and a tensioning mechanism, side plates are symmetrically arranged on two sides of the rack, a main guide rod is rotatably connected above a position between the two side plates, two side guide rods which are respectively rotatably connected with the side plates are arranged on two sides of the main guide rod from top to bottom, and the side guide rods are rotatably connected with the side plates. A tensioning rod is connected between the two side guide rods through a tensioning mechanism and the side plates. According to the plastic film tensioning device, the sliding block connected with the tensioning rod moves on the sliding rod, the tensioning degree is adjusted through the spring on the sliding rod, and the tensioning strength of a plastic film is kept; and meanwhile, when the position of the sliding rod is adjusted, a rotating rod on the sliding rod is rotated to enable the sliding rod to move by a corresponding distance, so that different tension requirements of the plastic film are met.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning devices, in particular to a plastic film auxiliary tensioning device. Background Art

[0002] A plastic packaging bag is a packaging bag made of plastic as raw material and used to produce various daily necessities. It is widely used in daily life and industrial production. It needs to be made of plastic film during the production and processing process. The plastic film needs to be tensioned by a tensioning device during transportation. However, the existing fixed tensioning device is difficult to compensate for the elastic deformation of the plastic film, resulting in poor plastic film transportation effect. Utility Model Content

[0003] The purpose of the utility model is to provide a plastic film auxiliary tensioning device to overcome the above-mentioned defects in the prior art.

[0004] A plastic film auxiliary tensioning device comprises a frame and a tensioning mechanism, wherein side plates are symmetrically arranged on both sides of the frame, a main guide rod is rotatably connected to the upper part between the two side plates, two side guide rods are rotatably connected to the side plates respectively on both sides of the main guide rod from top to bottom, and a tensioning rod is connected to the side plates through the tensioning mechanism between the two side guide rods.

[0005] Preferably, the tensioning mechanism includes a slider, a spring and a slide rod, the slide rod is threadedly connected to the fixed block on the side panel and a baffle is provided at the end thereof, the slider is slidably connected to the slide rod, the two ends of the tensioning rod are respectively inserted into the through holes on the side panel and rotatably connected to the slider, the spring is sleeved on the slide rod and is located between the fixed block and the slider.

[0006] Preferably, a rotating rod is provided on the sliding rod.

[0007] Preferably, the frame is provided with a groove between two side plates.

[0008] Preferably, the height of the through hole is the same as the diameter of the tension rod.

[0009] The utility model has the following advantages:

[0010] When the utility model is in use, a slider connected to the tensioning rod moves on the slide rod, and the tension is adjusted by a spring on the slide rod to maintain the tension strength of the plastic film; at the same time, when the position of the slide rod can be adjusted, the rotating rod on the slide rod is rotated to move the slide rod a corresponding distance, thereby adapting to different tension requirements of the plastic film. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0012] Figure 2 It is a side view of the utility model.

[0013] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0014] Among them: 1, frame, 11, groove, 2, side plate, 21, through hole, 3, main guide rod, 4, side guide rod, 5, tensioning rod, 6, tensioning mechanism, 61, sliding rod, 611, rotating rod, 62, fixing block, 63, baffle, 64, slider, 65, spring. DETAILED DESCRIPTION

[0015] The specific implementation methods of the utility model are further explained in detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the utility model.

[0016] like Figure 1-3 As shown, the utility model provides a plastic film auxiliary tensioning device, including a frame 1 and a tensioning mechanism 6, side panels 2 are symmetrically provided on both sides of the frame 1, a groove 11 is provided between the two side panels 2, a main guide rod 3 is rotatably connected above the two side panels 2, two side guide rods 4 rotatably connected to the side panels 2 are provided on both sides of the main guide rod 3 from top to bottom, and a tensioning rod 5 is connected to the side panels 2 through the tensioning mechanism 6 between the two side guide rods 4.

[0017] It should be noted that the tensioning mechanism 6 includes a slider 64, a spring 65 and a slide rod 61. The slide rod 61 is threadedly connected to the fixed block 62 on the side plate 2 and a baffle 63 is provided at its end. The slider 64 is slidably connected to the slide rod 61. The two ends of the tensioning rod 5 are respectively inserted into the through holes 21 on the side plate 2 and are rotatably connected to the slider 64. The spring 65 is sleeved on the slide rod 61 and is located between the fixed block 62 and the slider 64.

[0018] In addition, a rotating rod 611 is provided on the sliding rod 61 to facilitate the rotation of the sliding rod 61 so as to adjust the position of the sliding rod 61 .

[0019] In addition, the height of the through hole 21 is the same as the diameter of the tension rod 5 , and the tension rod 5 is limited by the through hole 21 .

[0020] Specific implementation and principle:

[0021] When the plastic film is produced and processed, the plastic film is passed around the side guide rod 4, the main guide rod 3 and the tensioning rod 5. When the plastic film needs to be tensioned and adjusted, the slider 64 connected to the tensioning rod 5 will move on the slide rod 61, and the tension will be adjusted by the spring 65 on the slide rod 61 to maintain the tensioning strength of the plastic film; when the position of the slide rod 61 needs to be adjusted, the rotating rod 611 on the slide rod 61 is rotated to move the slide rod 61 a corresponding distance.

[0022] In summary, the utility model moves the slider 64 connected to the tensioning rod 5 on the slide bar 61, and adjusts the tension through the spring 65 on the slide bar 61 to maintain the tension strength of the plastic film; at the same time, when the position of the slide bar 61 can be adjusted, the rotating rod 611 on the slide bar 61 is rotated to move the slide bar 61 a corresponding distance, so as to adapt to different tension requirements of the plastic film.

[0023] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A plastic film auxiliary tensioning device, Features: The invention comprises a frame (1) and a tensioning mechanism (6), wherein side plates (2) are symmetrically arranged on both sides of the frame (1), a main guide rod (3) is rotatably connected to the upper part between the two side plates (2), two side guide rods (4) are rotatably connected to the side plates (2) respectively on both sides of the main guide rod (3) from top to bottom, and a tensioning rod (5) is connected to the side plates (2) between the two side guide rods (4) via the tensioning mechanism (6).

2. A plastic film auxiliary tensioning device according to claim 1, Features: The tensioning mechanism (6) comprises a slider (64), a spring (65) and a slide rod (61); the slide rod (61) is threadedly connected to a fixed block (62) on the side plate (2) and a baffle (63) is provided at the end thereof; the slider (64) is slidably connected to the slide rod (61); the two ends of the tensioning rod (5) are respectively inserted into the through holes (21) on the side plate (2) and are rotatably connected to the slider (64); the spring (65) is sleeved on the slide rod (61) and is located between the fixed block (62) and the slider (64).

3. A plastic film auxiliary tensioning device according to claim 2, Features: The sliding rod (61) is provided with a rotating rod (611).

4. A plastic film auxiliary tensioning device according to claim 1, Features: The frame (1) is provided with a groove (11) between two side plates (2).

5. A plastic film auxiliary tensioning device according to claim 2, Features: The height of the through hole (21) is the same as the diameter of the tension rod (5).

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