Full-automatic stretch film winding machine

Abstract

The utility model discloses a full-automatic stretch film winding machine which comprises a base, a rotary table and a lifting machine, a lifting table moving in the vertical direction is arranged on the outer side of the lifting machine, and a guide roller, a film installing roller and a cutting-off structure are installed on the lifting table. The cutting-off structure comprises an air cylinder and a lifting frame, a cutting knife moving in the vertical direction is arranged on the outer side of the lifting frame, a fixing plate is installed on the outer wall of the lifting frame, a connecting pipe is connected to the middle of the fixing plate, one end of the connecting pipe is connected with an adsorption strip, and the other end of the connecting pipe is connected with an air extracting pump through a hose. When a film is wound, the air cylinder in the cutting-off structure drives the lifting frame to abut against the surface of an object to be packaged, so that the film is pressed, the film is cut through the cutting knife, meanwhile, the adsorption strip can adsorb a cut film connector and prevent the cut film connector from loosening, the effect of automatically cutting off and adsorbing the film connector is achieved, and the production efficiency is improved. And the manual participation degree during thin film winding and packaging is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a full-automatic stretch film wrapping machine. Background Art

[0002] The stretch film wrapping machine uses the retractability and self-adhesiveness of the stretch film to bind the goods and pallets into a whole, thus fixing the goods so that they will not become loose or collapse. It can also prevent the goods from dust, moisture, damage, and scattering, and facilitate the entry and exit of goods.

[0003] When in use, the existing stretch film wrapping machine can automatically control the rotation of the object to be packaged and then pull the film to wrap around its surface. At the same time, the mounting frame where the film is located can also be raised and lowered to facilitate wrapping and packaging at different heights. However, after the film is wrapped, it is usually necessary to manually cut the film, and the joints of the cut film are prone to loosening, which is not conducive to subsequent wrapping and packaging. The film joints need to be manually straightened, which is more troublesome to operate.

[0004] To this end, we propose a fully automatic stretch film wrapping machine to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a fully automatic stretch film wrapping machine to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A fully automatic stretch film wrapping machine comprises a base, a turntable and an elevator. The turntable is rotatably mounted on the base, and the elevator is arranged on one side of the base. A lifting platform is provided on the outside of the elevator and moves in a vertical direction. A guide roller, a film loading roller and a cutting structure are mounted on the lifting platform. The film loading roller and the cutting structure are located on both sides of the guide roller, and the guide roller and the film loading roller are both rotatably connected to the lifting platform.

[0008] The cutting structure includes a cylinder and a lifting frame, and a cutting knife that moves in the vertical direction is provided on the outside of the lifting frame. A fixed plate is installed on the outer wall of the lifting frame, and a connecting pipe is connected to the middle of the fixed plate. One end of the connecting pipe is connected to the adsorption strip, and the other end of the connecting pipe is connected to the air pump through a hose. A plurality of air holes are opened on the outer wall of the adsorption strip.

[0009] In a further embodiment, a slider 1 is installed in the elevator, and a screw rod 1 and a smooth rod 1 that are parallel to each other are vertically passed through the slider 1, and the screw rod 1 is threadedly connected to the slider 1. The screw rod 1 is rotationally connected to the elevator, and one end of the screw rod 1 is connected to a motor 1.

[0010] In a further embodiment, a slider 2 is installed in the lifting frame, and a screw rod 2 and a polished rod 2 which are parallel to each other are vertically passed through the slider 2, and the screw rod 2 is threadedly connected to the slider 2. The screw rod 2 is rotationally connected to the lifting frame, and one end of the screw rod 2 is connected to the motor 2.

[0011] In a further embodiment, the back of the lifting frame is connected to a guide rod parallel to the extension and contraction direction of the cylinder, and a guide sleeve matching the guide rod is installed on the lifting platform, and the guide rod passes through the interior of the guide sleeve.

[0012] In a further embodiment, the adsorption strip is made of silicone or rubber, and the outer end surface of the adsorption strip adopts a curved surface structure.

[0013] In a further embodiment, a plurality of springs evenly distributed in the vertical direction are installed between the fixed plate and the adsorption strip, and a limiting rod is passed through the interior of the spring. One end of the limiting rod is fixed to the adsorption strip, and the other end slides through the fixed plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model is arranged that when the film is wound, the cylinder in the cutting structure drives the lifting frame to be close to the surface of the object to be packaged, thereby pressing the film, and cutting the film by the cutting knife. At the same time, the adsorption strip can adsorb the cut film joint to prevent it from loosening, thereby achieving the effect of automatic cutting and adsorption of the film joint, effectively reducing the manual participation in the film winding and packaging, and thus improving the efficiency of the winding packaging. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the cutting structure of the utility model from the right side;

[0018] Figure 3 This is a schematic diagram of the rear view of the cutting structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the lifting frame of the utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the utility model elevator.

[0021] In the figure: 1. Base; 2. Turntable; 3. Elevator; 31. Screw rod 1; 32. Polished rod 1; 33. Motor 1; 34. Slider 1; 4. Lifting platform; 5. Guide roller; 6. Film loading roller; 7. Cylinder; 8. Lifting frame; 81. Screw rod 2; 82. Polished rod 2; 83. Motor 2; 84. Slider 2; 9. Cutting knife; 10. Adsorption strip; 101. Air hole; 11. Connecting pipe; 12. Hose; 13. Vacuum pump; 14. Spring; 15. Limit rod; 16. Fixing plate; 17. Guide rod; 18. Guide sleeve. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that terms such as "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1, a fully automatic stretch film winding machine includes a base 1, a turntable 2 and a lifter 3. The turntable 2 is rotatably mounted on the base 1. A motor that drives the turntable 2 to rotate is provided in the base 1 (not shown in the figure). The items to be packaged are placed on the turntable 2, and the lifter 3 is arranged on one side of the base 1. A lifting platform 4 that moves in the vertical direction is provided on the outside of the lifter 3. Guide rollers 5, film loading rollers 6 and a cutting structure are installed on the lifting platform 4. The film loading rollers 6 and the cutting structure are located on both sides of the guide rollers 5. The guide rollers 5 are rotatably mounted on the middle part of the lifting platform 4. The film loading rollers 6 and the lifting platform 4 are also rotatably connected. The film roll is put on the film loading roller 6, and then passes around the guide roller 5 close to the lifting platform 4 and is then led out to the side of the turntable 2, so as to be conveniently wound around the items to be packaged.

[0026] See also Figure 5 A slider 34 is installed in the elevator 3, and one end of the slider 34 extending outside the elevator 3 is fixed to the lifting platform 4. A screw rod 31 and a polished rod 32 parallel to each other are vertically penetrated in the slider 34, and the screw 31 is threadedly connected to the slider 34, and the slider 34 is slidingly connected to the polished rod 32. The two ends of the screw 31 are respectively rotatably connected to the top and bottom of the elevator 3 through bearings, and the top end of the screw 31 extends out of the top of the elevator 3 and is connected to a motor 33. The motor 33 drives the screw 31 to rotate, which can drive the slider 34 to move up and down.

[0027] See also Figure 1-3 The cutting structure includes a cylinder 7 and a lifting frame 8. The cylinder 7 is horizontally fixed on the lifting platform 4, and the lifting frame 8 is vertically connected to the output end of the cylinder 7. A cutting knife 9 that moves in the vertical direction is provided on the side of the lifting frame 8 facing the guide roller 5. The cylinder 7 drives the lifting frame 8 to close to the surface of the object to be packaged, thereby pressing the film, and the film is cut vertically by the cutting knife 9.

[0028] Furthermore, the back of the lifting frame 8 is connected to a guide rod 17 parallel to the extension and contraction direction of the cylinder 7, and a guide sleeve 18 matching the guide rod 17 is installed on the lifting platform 4. The guide rod 17 passes through the interior of the guide sleeve 18, and the guide rod 17 slides in the guide sleeve 18 to limit the extension and contraction movement of the lifting frame 8, thereby improving stability and reducing deviation.

[0029] See also Figure 4 A slider 2 84 is installed in the lifting frame 8, and the slider 2 84 is fixed to the cutting knife 9. The slider 2 84 is vertically penetrated by a screw 2 81 and a polished rod 2 82 which are parallel to each other, and the screw 2 81 is threadedly connected to the slider 2 84, and the polished rod 2 82 is slidingly connected to the slider 2 84. The two ends of the screw 2 81 are respectively rotatably connected to the top and bottom ends of the lifting frame 8 through bearings, and the top end of the screw 2 81 passes through the top end of the lifting frame 8 and is connected to the motor 2 83. The motor 2 83 drives the screw 2 81 to rotate, which can drive the slider 2 84 to move up and down.

[0030] See also Figure 2-3 Considering that the film joint after cutting is easy to loose, which is not conducive to subsequent winding, a fixing plate 16 is installed on the outer wall of the lifting frame 8 near the cylinder 7, and a connecting pipe 11 is connected to the middle of the fixing plate 16. One end of the connecting pipe 11 facing the guide roller 5 is connected to the adsorption strip 10, and the other end of the connecting pipe 11 is connected to the air pump 13 through a hose 12. The air pump 13 is fixed on the outer wall of the lifting frame 8. A plurality of air holes 101 are opened on the outer wall of the adsorption strip 10 facing the guide roller 5. When the air pump 13 is working, the air holes 101 of the adsorption strip 10 have negative pressure suction, so as to absorb the film, which not only makes the film at the cut more firm and not easy to deform, but also avoids the problem of the film joint being easy to loose after cutting.

[0031] Furthermore, the adsorption strip 10 is made of silicone or rubber, and the outer end surface of the adsorption strip 10 adopts a curved surface structure, thereby reducing damage to the film when the adsorption strip 10 contacts the film.

[0032] Taking into account that when wrapping items of different volumes, the angles formed by the pulled film between the surface of the object and the guide roller 5 are different, in order to ensure that the adsorption strip 10 can fully absorb the film joint, a number of springs 14 evenly distributed in the vertical direction are installed between the fixed plate 16 and the adsorption strip 10, and a limiting rod 15 passes through the interior of the spring 14. One end of the limiting rod 15 is fixed to the adsorption strip 10, and the other end slides through the fixed plate 16, so that the adsorption strip 10 can elastically expand and contract relative to the fixed plate 16, thereby ensuring sufficient contact between the adsorption strip 10 and the film.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0034] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fully automatic stretch film wrapping machine, comprising a base (1), a turntable (2) and an elevator (3), wherein the turntable (2) is rotatably mounted on the base (1), and the elevator (3) is arranged on one side of the base (1), characterized in that: A lifting platform (4) is provided on the outside of the lift (3) and moves in the vertical direction. A guide roller (5), a film loading roller (6) and a cutting structure are installed on the lifting platform (4). The film loading roller (6) and the cutting structure are located on both sides of the guide roller (5). The guide roller (5) and the film loading roller (6) are both rotatably connected to the lifting platform (4). The cutting structure includes a cylinder (7) and a lifting frame (8), and a cutting knife (9) that moves in a vertical direction is provided on the outer side of the lifting frame (8). A fixing plate (16) is installed on the outer wall of the lifting frame (8), and a connecting pipe (11) is connected to the middle of the fixing plate (16). One end of the connecting pipe (11) is connected to the adsorption strip (10), and the other end of the connecting pipe (11) is connected to the air pump (13) through a hose (12). A plurality of air holes (101) are opened on the outer wall of the adsorption strip (10).

2. The fully automatic stretch film wrapping machine according to claim 1, characterized in that: A slider (34) is installed in the elevator (3), and a screw (31) and a smooth rod (32) are vertically passed through the slider (34), and the screw (31) is threadedly connected to the slider (34). The screw (31) is rotatably connected to the elevator (3), and one end of the screw (31) is connected to a motor (33).

3. The fully automatic stretch film wrapping machine according to claim 1, characterized in that: A second slider (84) is installed in the lifting frame (8), and a second screw rod (81) and a second smooth rod (82) are vertically passed through the second slider (84), and the second screw rod (81) is threadedly connected to the second slider (84). The second screw rod (81) is rotatably connected to the lifting frame (8), and one end of the second screw rod (81) is connected to the second motor (83).

4. The fully automatic stretch film wrapping machine according to claim 1, characterized in that: The back of the lifting frame (8) is connected to a guide rod (17) which is parallel to the telescopic direction of the cylinder (7), and a guide sleeve (18) which matches the guide rod (17) is installed on the lifting platform (4), and the guide rod (17) passes through the interior of the guide sleeve (18).

5. The fully automatic stretch film wrapping machine according to claim 1, characterized in that: The adsorption strip (10) is made of silica gel or rubber, and the outer end surface of the adsorption strip (10) adopts a curved surface structure.

6. The fully automatic stretch film wrapping machine according to claim 1, characterized in that: A plurality of springs (14) evenly distributed in the vertical direction are installed between the fixing plate (16) and the adsorption strip (10), and a limiting rod (15) is passed through the interior of the spring (14). One end of the limiting rod (15) is fixed to the adsorption strip (10), and the other end slides through the fixing plate (16).

Images