Film breaking device

Abstract

The utility model relates to the field of packaging equipment, in particular to a film breaking device. The film breaking device comprises a rack; the pressing mechanism is mounted on the rack and is configured to be capable of fixing a film; the film breaking mechanism is mounted on the rack and comprises a mounting seat fixedly connected with the rack, a first air cylinder mounted on the mounting seat and a blade mounted on the first air cylinder; the first air cylinder is configured to drive the blade to move so as to cut off the film. According to the film breaking device, traditional heating wire film breaking is replaced with blade film breaking, the film breaking device can be used in a common scene and can also be used in an anti-explosion environment, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the field of packaging equipment, in particular to a film cutting device. Background Art

[0002] In the field of transport packaging, LLDPE stretch film wrapping packaging has become a common choice in the industry as an economical, green and convenient packaging method.

[0003] The existing online machine's welding and film cutting mechanism uses a heating wire to cut the film. For example, the Chinese utility model patent with the announcement number CN211943999U discloses a fully automatic film welding and film cutting device, including a blowing assembly, a film clamping assembly, a welding film assembly and a film cutting assembly. The blowing assembly and the film clamping assembly are installed on the film clamping bracket, and the welding film assembly and the film cutting assembly are installed on the crossbeam. The crossbeam is fixed to the horizontal swing arm through a vertical connecting rod. The swing arm is hinged on the base and can rotate in the horizontal direction. The third cylinder is hinged to the base at one end and the swing arm at the other end. The swing arm is driven by the third cylinder to swing in the horizontal plane so as to approach or move away from the goods; the welding film assembly and the film cutting assembly that can be pushed out horizontally are installed on the crossbeam through the fourth cylinder. In the film cutting assembly, the film cutting plate is fixed on the vertical heating block support frame, and the heating wire fixing plate A and the heating wire fixing plate B are fixed at the upper and lower ends of the film cutting plate; the two ends of the heating wire are respectively connected to the left ends of the heating wire fixing plate A and the heating wire fixing plate B. The heating wire fixing plate A and the heating wire fixing plate B are fixed to the upper and lower ends of the film cutting plate through insulating sleeves and insulating pads; the right ends of the heating wire fixing plate A and the heating wire fixing plate B are connected to each other through tension spring connecting plates, heating wire tension springs and heating wire insulating sleeves. However, this method of using heating wire to cut the film is not suitable for explosion-proof environments and has environmental limitations.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to improve or solve the technical problem that the heating wire film cutting method in the prior art is not suitable for explosion-proof environment, the utility model provides a film cutting device. The film cutting device includes: a frame; a pressing mechanism, which is installed on the frame and configured to fix the film; a film cutting mechanism, which is installed on the frame and includes a mounting seat fixedly connected to the frame, a first cylinder installed on the mounting seat, and a blade installed on the first cylinder; the first cylinder is configured to drive the blade to move to cut the film.

[0006] The film cutting device of the utility model includes a frame, a pressing mechanism and a film cutting mechanism. The frame is used to install the pressing mechanism and the film cutting mechanism, and the pressing mechanism is used to fix the film so that the film cutting mechanism can cut the film. The film cutting mechanism includes a mounting seat, a first cylinder and a blade. When the film is fixed, the first cylinder is actuated to drive the blade to move so as to cut the film. This film cutting method can be used in ordinary scenes as well as in explosion-proof environments, and has a wide range of applications. Through the above-mentioned settings, the film cutting device of the utility model replaces the traditional heating wire film cutting with a blade film cutting, and can be used in ordinary scenes as well as in explosion-proof environments, and has a wide range of applications.

[0007] In a preferred technical solution of the above-mentioned film cutting device, a mounting plate is arranged between the first cylinder and the blade, the mounting plate is fixed on the first cylinder and the blade is mounted on the mounting plate.

[0008] In the preferred technical solution of the above film cutting device, it also includes a film grabbing shaft extending along the length direction of the first cylinder, and two film grabbing shafts are provided, and the two film grabbing shafts are respectively arranged on both sides of the blade. Through the above arrangement, the film grabbing shaft is used to grab the film, which is convenient for the blade to cut the film.

[0009] In the preferred technical solution of the above-mentioned film cutting device, a connecting plate is arranged on the mounting seat, and the film collecting shaft is rotatably connected to the connecting plate via an oil-free lubricating bearing.

[0010] In the preferred technical solution of the above-mentioned film cutting device, the pressing mechanism includes a support plate installed on the frame, a fixed plate fixedly connected to the support plate, and a brush installed on the fixed plate, and the brush is configured to press the film against the goods to prevent the film from floating.

[0011] In the preferred technical solution of the above-mentioned film cutting device, the frame includes a base, a swing arm pivotally connected to the base, a second cylinder for driving the swing arm to rotate, a crossbeam fixedly connected to the swing arm, and a film cutting arm fixedly connected to the crossbeam; the mounting seat is fixed on the film cutting arm, and the support plate is mounted on the crossbeam.

[0012] In the preferred technical solution of the above film cutting device, the second cylinder is rotatably mounted on the base. Through the above arrangement, the second cylinder is pivotally connected to the base, which facilitates the rotation of the swing arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0014] Figure 1 It is a schematic diagram of an embodiment of the film cutting device of the utility model.

[0015] Figure 2 It is a front view of an embodiment of the film cutting device of the present utility model.

[0016] Figure 3 It is a top view of an embodiment of the film cutting device of the utility model.

[0017] Figure 4 It is a side view of an embodiment of the film cutting device of the utility model.

[0018] Figure 5 It is a schematic diagram of the film cutting device of the utility model in a non-working state.

[0019] Figure 6 It is a schematic diagram of the film cutting device of the utility model in a working state.

[0020] List of reference numerals: 1. base; 2. swing arm; 3. crossbeam; 4. first connecting member; 5. film cutting arm; 6. second connecting member; 7. mounting seat; 8. first cylinder; 9. mounting plate; 10. blade; 11. oil-free lubricated bearing; 12. connecting plate; 13. support plate; 14. fixing plate; 15. brush; 16. second cylinder; 17. cylinder fixing seat; 18. joint; 19. cylinder connecting seat; 20. swing shaft; 21. film collecting shaft; 100. film; 200. film clamp; 300. goods. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In order to improve or solve the technical problem that the heating wire film cutting method in the prior art is not suitable for explosion-proof environment, the utility model provides a film cutting device. The film cutting device includes: a frame; a pressing mechanism, which is installed on the frame and configured to fix the film 100; a film cutting mechanism, which is installed on the frame and includes a mounting seat 7 fixedly connected to the frame, a first cylinder 8 installed on the mounting seat 7, and a blade 10 installed on the first cylinder 8; the first cylinder 8 is configured to drive the blade 10 to move to cut the film 100.

[0025] Figure 1 It is a schematic diagram of an embodiment of the film cutting device of the utility model; Figure 2 This is a front view of an embodiment of the film cutting device of the utility model; Figure 3 It is a top view of an embodiment of the film cutting device of the utility model; Figure 4 It is a side view of an embodiment of the film cutting device of the utility model; Figure 5 It is a schematic diagram of the film cutting device of the utility model in a non-working state; Figure 6 Schematic diagram of the film cutting device of the utility model in working state. Figures 1 to 6 As shown, the film cutting device of the utility model comprises a frame, a pressing mechanism and a film cutting mechanism.

[0026] Continue to see Figures 1 to 6 In one or more embodiments, the frame includes a base 1, a swing arm 2 pivotally connected to the base 1, a second cylinder 16 for driving the swing arm 2 to rotate, a crossbeam 3 fixedly connected to the swing arm 2, and a film breaking arm 5 fixedly connected to the crossbeam 3. Specifically, a swing shaft 20 is provided on the base 1, and the swing arm 2 is mounted on the swing shaft 20, so that the base 1 and the swing arm 2 are rotatably connected. Further, the second cylinder 16 is rotatably mounted on the base 1. Specifically, a cylinder fixing seat 17 is installed on the base 1, and the cylinder fixing seat 17 includes a fixing portion and a connecting portion hinged to the fixing portion, the fixing portion is installed on the base 1, and the hinged portion is fixedly connected to the second cylinder 16. Further, a cylinder connecting seat 19 is provided on the swing arm 2, and a joint 18 is provided between the cylinder connecting seat 19 and the second cylinder 16. Exemplarily, when the film cutting mechanism is not working, the cylinder shaft of the second cylinder 16 is in an extended state, and an obtuse angle is formed between the swing arm 2 and the base 1; when the film cutting mechanism is working, the cylinder shaft of the second cylinder 16 retracts, driving the swing arm 2 to rotate, and a right angle is formed between the swing arm 2 and the base 1. In one or more embodiments, the swing arm 2 is roughly L-shaped, and the crossbeam 3 is installed on the swing arm 2 through the first connecting member 4. Further, a plurality of connecting holes are arranged on the swing arm 2, so that the first connecting member 4 can adjust the height on the swing arm 2. Further, the film cutting arm 5 is installed on one side of the crossbeam 3 through the second connecting member 6.

[0027] Continue to see Figures 1 to 6In one or more embodiments, the film cutting mechanism includes a mounting seat 7 mounted on a frame, a first cylinder 8 mounted on the mounting seat 7, and a blade 10 mounted on the first cylinder 8. Specifically, the mounting seat 7 is mounted on the film cutting arm 5 for mounting the first cylinder 8. The first cylinder 8 is a rodless cylinder. Further, a mounting plate 9 is arranged between the first cylinder 8 and the blade 10. Specifically, the mounting plate 9 is fixed on the first cylinder 8 and moves under the drive of the first cylinder 8; the blade 10 is mounted on the mounting plate 9 and moves with the movement of the mounting plate 9 to cut the film 100.

[0028] Continue to see Figures 1 to 6 In one or more embodiments, a film-grabbing shaft 21 is also installed on the mounting seat 7. The film-grabbing shaft 21 extends along the length direction of the first cylinder 8, and two film-grabbing shafts 21 are provided. The two film-grabbing shafts 21 are arranged on both sides of the blade 10, respectively. Specifically, a connecting plate 12 is provided near the top of the mounting seat 7, and one end of the film-grabbing shaft 21 is connected to the mounting seat 7 through the connecting plate 12. A bottom plate is provided at the bottom of the mounting seat 7, and the other end of the film-grabbing shaft 21 is connected to the mounting seat 7 through the bottom plate. When cutting the film, the two film-grabbing shafts 21 are against the film 100 so that the blade 10 can cut the film. Furthermore, oil-free lubricating bearings 11 are provided at both ends of the film-grabbing shaft 21, and the film-grabbing shaft 21 is rotatably connected with the connecting plate 12 and the bottom plate through the oil-free lubricating bearings 11 so that the film-grabbing shaft 11 can rotate.

[0029] Continue to see Figures 1 to 6 In one or more embodiments, the pressing mechanism includes a support plate 13 mounted on the frame, a fixing plate 14 fixedly connected to the support plate 13, and a brush 15 mounted on the fixing plate 14. Specifically, the support plate 13 is mounted on the crossbeam 3, the fixing plate 14 is mounted on the support plate 13, and the brush 15 is mounted on the side of the support plate 13 away from the crossbeam 3. When the film is cut, the cylinder shaft of the second cylinder 16 retracts, driving the swing arm 2 to rotate, and the film-grabbing shaft 21 grasps the film, so that the trajectory of the film 100 is at a suitable position, the film clamp clamps the film 100, and the first cylinder 8 moves from top to bottom, driving the blade 10 to cut the film 100 to achieve film cutting, and the brush 15 presses the film 100 against the goods 300 to prevent the film from floating.

[0030] So far, the technical scheme of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical schemes after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A film cutting device, characterized in that: include: frame; A pressing mechanism, mounted on the frame and configured to fix the membrane (100); A film cutting mechanism is mounted on the frame and comprises a mounting seat (7) fixedly connected to the frame, a first cylinder (8) mounted on the mounting seat (7), and a blade (10) mounted on the first cylinder (8); the first cylinder (8) is configured to drive the blade (10) to move so as to cut the film (100).

2. The film cutting device according to claim 1, characterized in that: A mounting plate (9) is arranged between the first cylinder (8) and the blade (10); the mounting plate (9) is fixed on the first cylinder (8) and the blade (10) is mounted on the mounting plate (9).

3. The film cutting device according to claim 1, characterized in that: It also comprises a film-grasping shaft (21) extending along the length direction of the first cylinder (8), and two film-grasping shafts (21) are provided, and the two film-grasping shafts (21) are respectively arranged on both sides of the blade (10).

4. The film cutting device according to claim 3, characterized in that: A connecting plate (12) is arranged on the mounting seat (7), and the film-carrying shaft (21) is rotatably connected to the connecting plate (12) via an oil-free lubricating bearing (11).

5. The film cutting device according to claim 1, characterized in that: The pressing mechanism comprises a support plate (13) mounted on the frame, a fixing plate (14) fixedly connected to the support plate (13), and a brush (15) mounted on the fixing plate (14), wherein the brush (15) is configured to press the film (100) against the goods (300).

6. The film cutting device according to claim 5, characterized in that: The frame comprises a base (1), a swing arm (2) pivotally connected to the base (1), a second cylinder (16) for driving the swing arm (2) to rotate, a crossbeam (3) fixedly connected to the swing arm (2), and a film cutting arm (5) fixedly connected to the crossbeam (3); the mounting seat (7) is fixed on the film cutting arm (5), and the support plate (13) is mounted on the crossbeam (3).

7. The film cutting device according to claim 6, characterized in that: The second cylinder (16) is rotatably mounted on the base (1).

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