Novel stretch film

Abstract

The utility model relates to a novel stretch film which comprises a film body, a paper tube and an inner tube, the film body is wound on the paper tube, the paper tube is rotatably sleeved on the inner tube, the inner tube is provided with a film rod located on the outer side of the film body, the film rod is provided with a sliding groove along the length direction of the film rod, the sliding groove is provided with a tool apron in a sliding mode, and the tool apron is arranged on the inner tube in a sliding mode. According to the film body cutting device, after goods are wound by the film body, the film body is attached to the film rod, then the cutting knife is pushed out of the containing cavity of the knife holder, and then the knife holder is pushed to move along the sliding groove of the film rod, so that the film body can be cut; and moreover, the cutting knife can be retracted into the accommodating cavity when not in use, so that the safety is high.

Description

Technical Field

[0001] The utility model relates to the technology of packaging materials, in particular to a new type of stretch film. Background Art

[0002] A stretch film is a commonly used packaging material, which is widely used in the fields of logistics, warehousing and transportation. It fastens goods through its own elasticity, effectively preventing the goods from shifting or being damaged during transportation.

[0003] In the actual operation process, after using the stretch film to wrap the goods, it is necessary to break the film body to complete the winding of the object. Generally, users will directly break it by hand when using it. However, the existing stretch film generally has high elasticity and strength, so it is difficult to break it. Therefore, it is necessary to carry a knife with you to cut the stretch film after completing the winding of the object, which is rather inconvenient. In view of this technical problem, this application makes improvements. Summary of the Utility Model

[0004] The utility model provides a new type of stretch film, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: A new type of stretch film includes a film body, a paper tube and an inner tube. The film body is wound around the paper tube, the paper tube is rotatably sleeved on the inner tube, a film rod is arranged on the inner tube outside the film body, a sliding groove is opened along the length direction of the film rod, a knife seat is slidably arranged on the sliding groove, a receiving cavity is penetrated in the knife seat, and a cutting knife is telescopically arranged in the receiving cavity.

[0006] Preferably, one end of the cutting knife is connected with a sliding knife handle, the sliding knife handle is slidably arranged on the receiving cavity, and a grip is fixedly connected to the end of the sliding knife handle away from the cutting knife.

[0007] Preferably, a spring is arranged between the grip and the knife seat.

[0008] Preferably, a turning-out slot is opened at one end of the inner tube, a mounting seat is rotatably connected to the inner side wall of the inner tube, the turning-out slot is used for the mounting seat to turn out, a round hole is penetrated in the mounting seat, a sphere is movably arranged in the round hole, a positioning slot is opened on one side of the mounting seat and penetrates into the round hole, and one end of the film rod is fixedly connected to the sphere, and the positioning slot is used for the film rod to pass through.

[0009] Preferably, a first magnetic attraction block is arranged inside the turning-out slot of the inner tube, the mounting seat is made of a magnetizable metal material, and the first magnetic attraction block is used for abutting against the mounting seat when the mounting seat turns out into the turning-out slot.

[0010] Preferably, a support seat is fixedly connected to the inner side of the inner cylinder. The support seat is used to abut against the mounting seat when the mounting seat is located inside the inner cylinder, and a second magnetic block for attracting the mounting seat is provided on the support seat.

[0011] Preferably, a holding seat for abutting against the film rod is fixedly connected to one end of the inner cylinder away from the mounting seat.

[0012] In summary, the beneficial effects of the present utility model are as follows:

[0013] 1. After the film body winds the goods, the film body is made to adhere to the film rod. Then, the cutter is pushed out of the receiving cavity of the cutter seat, and then the cutter seat is pushed to move along the sliding groove of the film rod, so that the film body can be cut conveniently. And the cutter can be retracted into the receiving cavity when not in use, with high safety.

[0014] 2. When not in use, the film rod of the present utility model can be retracted into the inner cylinder. By rotating the mounting seat through the rotating slot into the inner cylinder, then rotating the film rod so that the film rod is coaxial with the circular hole of the mounting seat, and then pushing the film rod to move along the circular hole into the inner cylinder, the film rod is thus retracted into the inner cylinder. This is convenient for carrying and also convenient for the operation when replacing the film body on the paper tube when the film body is used up. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Structural schematic diagram of the film rod of the present utility model when located outside the film body;

[0017] Figure 2 For Figure 1 Structural schematic diagram when observed from the upper side;

[0018] Figure 3 Front view of the present utility model;

[0019] Figure 4 For Figure 3 Cross-sectional structural schematic diagram in the A-A direction;

[0020] Figure 5 For Figure 3 Cross-sectional and film body being pulled out structural schematic diagram in the B-B direction;

[0021] Figure 6Explosion structure diagram of the film rod, tool holder and cutter parts in the present utility model;

[0022] Figure 7 Structure diagram of the present utility model when the mounting seat is located inside the inner cylinder and the film rod rotates to be coaxial with the mounting seat;

[0023] Figure 8 Structure diagram of the present utility model when the film rod retracts into the inner cylinder;

[0024] Figure 9 is Figure 8 Structure diagram when observed from the upper side.

[0025] In the figure: 11, film body; 12, paper tube; 20, inner cylinder; 21, turning-out slot; 22, first magnetic attraction block; 23, support seat; 24, second magnetic attraction block; 30, film rod; 31, sliding slot; 32, sphere; 40, tool holder; 41, accommodating cavity; 42, cutter; 43, sliding knife handle; 44, grip; 45, spring; 50, mounting seat; 51, round hole; 52, positioning slot; 53, limiting block; 54, positioning screw; 60, abutting seat. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached Figures 1-9 , in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment:

[0028] As Figures 1 to 9 shown, the present utility model discloses a novel stretching film, including a film body 11, a paper tube 12 and an inner cylinder 20. The film body 11 is wound around the paper tube 12, and the paper tube 12 is rotatably sleeved on the inner cylinder 20. Among them, the film body 11 is a consumable, and after use, a paper tube 12 with a film body 11 can be replaced and sleeved on the inner cylinder 20 again. On the inner cylinder 20 of the present utility model, there is a film rod 30 located outside the film body 11. Along the length direction of the film rod 30, a sliding slot 31 is opened. A tool holder 40 is slidably arranged on the sliding slot 31. The tool holder 40 can only move along the sliding slot 31. An accommodating cavity 41 is penetrated through the tool holder 40, and a cutter 42 is telescopically arranged in the accommodating cavity 41.

[0029] The specific structure of the cutting knife 42 that is retractably arranged on the knife seat 40 is as follows: a sliding knife handle 43 is connected to one end of the cutting knife 42, and the sliding knife handle 43 is slidably arranged on the accommodating cavity 41. The sliding knife handle 43 can only slide on the accommodating cavity 41 and cannot escape from the accommodating cavity 41, wherein a handle 44 is fixedly connected to the end of the sliding knife handle 43 away from the cutting knife 42, and a spring 45 is provided between the handle 44 and the knife seat 40. When the user grasps the handle 44 and pushes the handle 44 toward the film body 11, the handle 44 compresses the spring 45, so that the sliding knife handle 43 moves to drive the cutting knife 42 to move out of the accommodating cavity 41, and then the handle 44 is pushed along the sliding groove 31, and the knife seat 40 moves along the sliding groove 31, driving the cutting knife 42 to move together. Therefore, when the present invention is in use, after the film body 11 has finished winding the goods, the film body 11 is made close to the film rod 30, such as Figure 5 As shown, the cutting knife 42 is then pushed out of the accommodating cavity 41 of the knife holder 40, and then the knife holder 40 is pushed to move along the sliding groove 31 of the membrane rod 30, so that the membrane body 11 can be cut, which is relatively convenient. After use, the knife holder 40 is returned to its original position, the handle 44 is released, and the spring 45 will push the handle 44 and the sliding knife handle 43 to reset, so that the cutting knife 42 is retracted into the accommodating cavity 41, which is highly safe.

[0030] In the present invention, the inner cylinder 20 is provided with a rotation slot 21 at one end thereof, and the inner cylinder 20 is rotatably connected with a mounting seat 50 on its inner side wall, the rotation slot 21 is used for the mounting seat 50 to rotate out, and the mounting seat 50 can be rotated to a vertical state with the inner cylinder 20. Figure 1 As shown, it can also be rotated back into the inner cylinder 20 as shown in FIG. Figure 7 As shown, in addition, a circular hole 51 is formed in the mounting seat 50, and a ball 32 is movably arranged in the circular hole 51. A stop block 53 is connected to one end of the mounting seat 50 that can be rotated out of the inner cylinder 20 to prevent the ball 32 from escaping from the end, and the mounting seat 50 is also provided with a positioning groove 52 that penetrates into the circular hole 51 on one side thereof, wherein one end of the membrane rod 30 is fixedly connected to the ball 32, and the positioning groove 52 is used for the membrane rod 30 to pass through, that is, the membrane rod 30 can be rotated to the position as shown in FIG. Figure 1 The mounting base 50 is shown in a vertical position, and can also be rotated to Figure 7 As shown, the mounting base 50 is coaxial with the mounting base 50. It should be noted that a positioning screw 54 is also threadedly connected to the mounting base 50. Figure 4 As shown, the positioning screw 54 is tightened to press against the ball 32, thereby preventing the ball 32 from moving.

[0031] When the film rod 30 of the present utility model is not in use, it can be retracted into the inner cylinder 20. By rotating the mounting seat 50, it enters the inner cylinder 20 through the rotating slot 21. Then, rotate the positioning screw 54 to withdraw from the round hole 51, and then rotate the film rod 30 so that the film rod 30 is coaxial with the round hole 51 of the mounting seat 50, as Figure 7 shown. Then, push the film rod 30 to move along the round hole 51 into the inner cylinder 20, thereby retracting the film rod 30 into the inner cylinder 20, as Figure 8 shown in Figure 9 . This is convenient for carrying and also for the operation when replacing the new film body 11 when the film body 11 on the paper tube 12 is used up. To make the film rod 30 become Figure 1 like this, first pull out the film rod 30 until the sphere 32 abuts against the limit block 53. Then rotate the mounting seat 50 so that the mounting seat 50 is perpendicular to the inner cylinder 20. Then rotate the film rod 30 so that the film rod 30 is perpendicular to the mounting seat 50. Then rotate the positioning screw 54 to hold against the sphere 32.

[0032] Among them, in order to make the mounting seat 50 maintain a perpendicular state with the inner cylinder 20, as Figure 1 shown, the inner cylinder 20 is provided with a first magnetic attraction block 22 inside the rotating slot 21, as Figure 7 . Among them, the mounting seat 50 is made of a magnetizable metal material, and the first magnetic attraction block 22 is used to abut against it when the mounting seat 50 rotates into the rotating slot 21.

[0033] Furthermore, in order to make the mounting seat 50 maintain the structure when it is located in the inner cylinder 20, a support seat 23 is fixedly connected inside the inner cylinder 20, as Figure 9 shown. The support seat 23 is used to abut against the mounting seat 50 when the mounting seat 50 is located in the inner cylinder 20, and a second magnetic attraction block 24 for attracting the mounting seat 50 is provided on the support seat 23, as Figure 2 shown.

[0034] In the present utility model, a holding seat 60 for forming a hold on the film rod 30 is fixedly connected to one end of the inner cylinder 20 away from the mounting seat 50. The holding seat 60 is used to keep the film rod 30 in a stable state when in the state as Figure 1 shown. If the film rod 30 is to further improve the structural strength in this state, a screw can also be provided on the film rod 30 to be fixed on the holding seat 60.

[0035] At the same time, it should be pointed out that the terms of the present utility model, such as: "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present utility model.

[0036] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A new type of stretch film, comprising a film body, a paper tube and an inner tube, wherein the film body is wound around the paper tube, and the paper tube is rotatably sleeved on the inner tube, and is characterized in that: A membrane rod located outside the membrane body is provided on the inner cylinder. A sliding groove is formed in the membrane rod along its length direction. A tool holder is slidably arranged on the sliding groove. A receiving cavity is penetrated through the tool holder, and a cutting knife is telescopically arranged in the receiving cavity.

2. A novel stretch film according to claim 1, characterized in that: One end of the cutting knife is connected with a sliding knife handle. The sliding knife handle is slidably arranged on the receiving cavity. A grip is fixedly connected to the end of the sliding knife handle away from the cutting knife.

3. A novel stretch film according to claim 2, characterized in that: A spring is provided between the grip and the tool holder.

4. A novel stretch film according to claim 1, wherein: The inner cylinder is provided with a turning-out slot at one of its ends. A mounting seat is rotatably connected to the inner side wall of the inner cylinder. The turning-out slot is used for the mounting seat to turn out. A round hole is penetrated through the mounting seat. A sphere is movably arranged in the round hole. The mounting seat is further provided with a positioning groove penetrating into the round hole on one of its sides. One end of the membrane rod is fixedly connected to the sphere. The positioning groove is used for the membrane rod to pass through.

5. A novel stretch film according to claim 4, characterized in that: A first magnetic attraction block is provided inside the inner cylinder at the inner side of the turning-out slot. The mounting seat is made of a magnetizable metal material. The first magnetic attraction block is used for abutting against the mounting seat when the mounting seat turns out into the turning-out slot.

6. A novel stretch film according to claim 5, characterized in that: A support seat is fixedly connected to the inner side of the inner cylinder. The support seat is used for abutting against the mounting seat when the mounting seat is located inside the inner cylinder. A second magnetic attraction block for attracting the mounting seat is provided on the support seat.

7. A novel stretch film according to claim 4, characterized in that: A holding seat for forming an abutment against the membrane rod is fixedly connected to the end of the inner cylinder away from the mounting seat.

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