Film cutting device

Abstract

The utility model relates to a film cutting device which comprises a film fixing mechanism, a telescopic clamping mechanism, a cutting mechanism and a fixing plate. The film fixing mechanism comprises a film tensioning piece and a fixing support, one end of the fixing support is connected with the fixing plate, and the other end of the fixing support is connected with the film tensioning piece; the telescopic clamping mechanism comprises a telescopic shaft and a blocking piece, the telescopic shaft is connected to the fixing plate in an inserted mode, and the blocking piece is arranged at one end of the telescopic shaft. The cutting mechanism comprises a blade and a blade support, the blade is fixed on the blade support, and the blade support is fixed on the fixing plate. The cutting process is safe and reliable, and operators are effectively prevented from being injured.

Description

Technical Field

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

[0002] Packaging machinery has become a key industry in my country, with wrapping machines being a widespread fixture. Widely used in the packaging of export goods, food and beverages, plastics and chemicals, glass and ceramics, and electromechanical castings, these machines prevent damage during handling, protect against dust and moisture, and maintain a clean environment.

[0003] Although there are many types of stretch wrapping machines, their working modes are the same, using stretch film to wrap the goods. However, when cutting the stretch film, there are problems such as unsafe cutting and incomplete cutting of the stretch film. Utility Model Content

[0004] The purpose of the present invention is to provide a film cutting device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A film cutting device comprises a film fixing mechanism, a telescopic clamping mechanism, a cutting mechanism and a fixing plate;

[0007] The film fixing mechanism includes a film tensioning member and a fixing bracket, one end of the fixing bracket is connected to the fixing plate, and the other end is connected to the film tensioning member;

[0008] The telescopic clamping mechanism includes a telescopic shaft and a baffle, wherein the telescopic shaft is plugged into the fixed plate and the baffle is provided at one end of the telescopic shaft;

[0009] The cutting mechanism comprises a blade and a blade support, the blade is fixed on the blade support, and the blade support is fixed on the fixing plate.

[0010] In a possible implementation manner, the film tensioning member is a disk, a first spring is provided on the disk, and the first spring is plugged into the fixing bracket.

[0011] Optionally, the fixing bracket is a Z-shaped fixing bracket, and one end of the Z-shaped fixing bracket away from the disc is fixed to the fixing plate by a screw.

[0012] In a possible implementation, the telescopic shaft is connected to a cylinder, and the cylinder is fixedly mounted on the fixed plate.

[0013] In a possible implementation, the blade bracket is an L-shaped bracket, one end of the L-shaped bracket is fixed to the fixing plate by a screw, and the other end is connected to the blade by a screw.

[0014] In a possible implementation, the film cutting device further includes a protective cover, the fixing plate is placed at the front end of the protective cover, the fixing plate is fixed to the protective cover by screws, and the cutting mechanism is placed inside the protective cover.

[0015] Optionally, the blocking piece is connected to the telescopic shaft via a second spring.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The cutting process is safe and reliable, effectively avoiding operator injuries;

[0018] 2. The operation is more flexible and convenient, and different types of cutters can be replaced according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a film cutting device according to the present invention;

[0020] Figure 2 This is a partial structural diagram of the film cutting device of the present invention;

[0021] Figure 3 This is a structural schematic diagram of the film fixing mechanism of the film cutting device of the present invention. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0023] like Figure 1-3As shown, a film cutting device includes a film fixing mechanism 1, a telescopic clamping mechanism 2, a cutting mechanism 4, and a fixed plate 3. The film fixing mechanism 1 includes a film tensioning member 11 and a fixed bracket 12, one end of the fixed bracket 12 being connected to the fixed plate 3 and the other end being connected to the film tensioning member 11. The telescopic clamping mechanism 2 includes a telescopic shaft 21 and a baffle 22, the telescopic shaft 21 being inserted into the fixed plate 3, and the baffle 22 being provided at one end of the telescopic shaft 21. The cutting mechanism 4 includes a blade 41 and a blade bracket 42, the blade 41 being fixed to the blade bracket 42, which is fixed to the fixed plate 3. Using a single fixed plate 3 as a carrier for each component maximizes space utilization, and the telescopic clamping mechanism 2 can be extended and retracted according to the thickness of the film to be cut. That is, as the film to be cut becomes thinner, the telescopic shaft 21 begins to move forward, simultaneously driving the baffle 22 forward. In this way, during the cutting process, the blocking piece 22 always presses the film, so that the blade 41 can effectively and accurately cut the film.

[0024] As a preferred embodiment, the film tensioning member 11 is a circular disc equipped with a first spring 13, which is inserted into the fixing bracket 12. The circular disc can be used to secure and tension the film. The fixing bracket 12 can be a Z-shaped fixing bracket, with the end of the Z-shaped fixing bracket away from the circular disc fixed to the fixing plate 3 via screws.

[0025] The telescopic shaft 21 is connected to a cylinder 24, and the cylinder 24 is fixedly mounted on the fixed plate 3. The cylinder 24 can provide kinetic energy to the telescopic shaft 21, so that the telescopic shaft 21 can realize reciprocating movement. In this application, the specific type of the cylinder 24 is not limited, as long as the cylinder 24 can serve as a driver to drive the telescopic shaft 21 to extend and retract. In order to reasonably utilize space, the blade bracket 42 adopts an L-shaped bracket, one end of the L-shaped bracket is fixed to the fixed plate 3 with a screw, and the other end is connected to the blade 41 by a screw. Figure 2 As shown, after being mounted on the blade holder 42, the blade 41 can form a certain angle with the cross section of the telescopic shaft 21, making it easier to cut the film. It should be noted that the present application does not impose any specific value on the angle between the blade and the telescopic shaft, and the operator can adjust the degree of inclination of the blade according to different working conditions.

[0026] In order to further protect the cutting mechanism 4, the present application further includes a protective cover 5. The fixing plate 3 is placed at the front end of the protective cover 5, and the fixing plate 3 is fixed to the protective cover 5 by screws. The cutting mechanism 4 is placed inside the protective cover 5. Since the cutting surface is inside the cover, the safety of the section is met and the sharpness of the blade is guaranteed.

[0027] To cushion the cutting process, the baffle 22 is connected to the telescopic shaft 21 via a second spring 23. When compressed, the second spring 23 generates a reaction force on the baffle 22, thereby limiting the movement speed of the baffle 22 and preventing the telescopic shaft 21 from contracting too sharply, which would result in the blade being unable to accurately cut the film.

[0028] When in use, place the film on the disc and the baffle 22, adjust the tension of the disc and the position of the baffle 22 according to the initial thickness of the film so that the film meets the cutting conditions, start the cylinder 24 to drive the telescopic shaft 21 to extend and retract, and the blade 41 starts to cut the film.

[0029] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", "left and right", "front and back", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 present invention.

[0030] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0031] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A film cutting device, characterized in that: It comprises a film fixing mechanism (1), a telescopic clamping mechanism (2), a cutting mechanism (4) and a fixing plate (3); The film fixing mechanism (1) comprises a film tensioning member (11) and a fixing bracket (12), one end of the fixing bracket (12) is connected to the fixing plate (3), and the other end is connected to the film tensioning member (11); The telescopic clamping mechanism (2) comprises a telescopic shaft (21) and a baffle (22), wherein the telescopic shaft (21) is plugged into the fixed plate (3), and the baffle (22) is provided at one end of the telescopic shaft (21); The cutting mechanism (4) comprises a blade (41) and a blade support (42), wherein the blade (41) is fixed on the blade support (42), and the blade support (42) is fixed on the fixing plate (3).

2. The film cutting device according to claim 1, characterized in that: The film tensioning member (11) is a disk, a first spring (13) is provided on the disk, and the first spring (13) is plugged into the fixing bracket (12).

3. The film cutting device according to claim 2, characterized in that: The fixing bracket (12) is a Z-shaped fixing bracket, and one end of the Z-shaped fixing bracket away from the disc is fixed to the fixing plate (3) by means of screws.

4. The film cutting device according to claim 1, characterized in that: The telescopic shaft (21) is connected to a cylinder (24), and the cylinder (24) is fixedly mounted on the fixed plate (3).

5. The film cutting device according to claim 1, characterized in that: The blade bracket (42) is an L-shaped bracket, one end of which is fixed to the fixing plate (3) by screws, and the other end is connected to the blade (41) by screws.

6. The film cutting device according to claim 1, characterized in that: It also includes a protective cover (5), the fixing plate (3) is placed at the front end of the protective cover (5), the fixing plate (3) is fixed to the protective cover (5) by screws, and the cutting mechanism (4) is placed inside the protective cover (5).

7. The film cutting device according to claim 1, characterized in that: The blocking piece (22) is connected to the telescopic shaft (21) via a second spring (23).

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