Adjustable PE protective film edge cutting device

Abstract

The utility model discloses an adjustable PE (Poly Ethylene) protective film trimming device, which belongs to the technical field of PE protective film trimming and comprises supporting legs, a supporting plate is connected onto the supporting legs, and a PE film is connected onto the supporting plate. According to the adjustable PE protective film edge cutting device, a rope, a first long plate, a sliding block, a sliding groove, a first long plate, a telescopic rod, a second long plate, a fixing rod, a bearing and a roller are arranged, the first long plate drives the sliding block to slide in the sliding groove, then the rope is driven to move through a pulley, and the roller can apply pressure to a PE film which is not cut; when the PE film is heated, the PE film is pushed to the direction far away from the cutter, so that the roller is used for keeping a certain distance between the PE film and the blade, the molten PE film is ensured to be far away from the overheated blade, the adhesion phenomenon is avoided, the blade is effectively protected, the service life of equipment is prolonged, and the smoothness of the cutting process and the stability of the trimming quality are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of PE protective film edge cutting, in particular to an adjustable PE protective film edge cutting device. Background Art

[0002] Adjustable PE protective film trimming equipment is a device used for precise cutting of PE protective film on automated production lines. It can adjust the trimming width according to product requirements to ensure that the edges of the protective film are neat and tidy, thereby improving the aesthetics and protective effect of product packaging. At present, the trimming process of PE protective film is generally achieved by a hot knife trimmer. This equipment heats the blade to increase the blade temperature, thereby melting the edge of the PE protective film faster during the cutting process, allowing it to solidify quickly and achieve a neat trimming effect. However, in the process of using a hot knife trimmer, due to the high blade temperature, the PE protective film may melt during the cutting process and then adhere to the blade. This situation will not only affect the cutting effect, but may also cause accelerated wear of the blade, reducing the cutting efficiency and life of the equipment. Utility Model Content

[0003] In order to overcome the above defects, the utility model provides an adjustable PE protective film trimming device, which solves the problem that when using a hot knife trimmer, the PE protective film may melt during the cutting process and then stick to the blade due to the high blade temperature.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable PE protective film trimming device, comprising a support leg, a support plate connected to the support leg, a PE film connected to the support plate, a tension assembly connected to the support plate, a frame connected to one side of the support plate, a hydraulic cylinder connected to the frame, a cutter connected under the hydraulic cylinder, and two slide grooves provided in the frame;

[0005] An auxiliary device is slidably connected in the slide groove, and the auxiliary device includes a connecting plate, a pulley is rotatably connected in the connecting plate, a rope is wound in the pulley, one end of the rope is connected to a connecting block, and the other end of the rope is connected to a fixed block, a first long plate is connected under the fixed block, two sliding blocks are connected to the first long plate, and two telescopic rods are connected under the first long plate.

[0006] As a further solution of the utility model: a second long plate is connected under the telescopic rod, and a pull-back spring is disposed on the outer sleeve of the telescopic rod.

[0007] As a further solution of the utility model: two fixing rods are connected under the second long plate, one end of the two fixing rods is connected to a bearing, and the same roller is connected inside the two bearings.

[0008] As a further solution of the utility model: the connecting plate is connected to one side of the frame, and the connecting block is connected to one side of the tool.

[0009] As a further solution of the utility model: the sliding block is slidably connected in the sliding groove, and the roller is overlapped on the supporting plate.

[0010] As a further solution of the utility model: one end of the pull-back spring is connected under the first long plate, and the other end of the pull-back spring is connected to the second long plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The adjustable PE protective film trimming device is provided with a rope, a first long board, a slider, a slide groove, a first long board, a telescopic rod, a second long board, a fixed rod, a bearing and a roller. When cutting is completed, the hydraulic cylinder drives the cutter to reset and move, and the cutter drives the connecting block to move. At this time, the connecting block loses the tension on the rope, and the roller drives the fixed rod and the second long board to move by weight. At this time, the second long board drives the telescopic rod and the first long board to move, and the first long board drives the slider to slide in the slide groove, and then drives the rope to move through the pulley, so that the roller exerts pressure on the uncut part of the PE film and pushes it away from the cutter. In this way, the roller keeps a certain distance between the PE film and the blade, ensuring that the melted PE film is away from the overheated blade, thereby avoiding adhesion. This design effectively protects the blade, prolongs the service life of the equipment, and ensures the smoothness of the cutting process and the stability of the trimming quality.

[0013] 2. The adjustable PE protective film trimming device is provided with a first long plate, a pull-back spring, a second long plate, a fixed rod, a bearing and a roller. When the PE film is pulled, the pull-back spring applies an elastic force to the second long plate, and the elastic force drives the second long plate, the fixed rod, the bearing and the roller to move, so that they are kept in contact with the PE film, so that the PE film is kept in contact with the support plate, avoiding folding during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the frame of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the auxiliary device of the utility model;

[0017] Figure 4 For this utility model Figure 3The structural diagram of the enlarged part A in the middle;

[0018] In the figure: 1. support leg; 2. support plate; 3. PE film; 4. tension assembly; 5. frame; 6. hydraulic cylinder; 7. tool; 8. slide; 9. auxiliary device; 901. connecting plate; 902. pulley; 903. rope; 904. connecting block; 905. fixed block; 906. first long board; 907. slider; 908. telescopic rod; 909. return spring; 910. second long board; 911. fixed rod; 912. bearing; 913. roller. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: an adjustable PE protective film trimming device, comprising a support leg 1, a support plate 2 is connected to the support leg 1, a PE film 3 is connected to the support plate 2, a tension component 4 is connected to the support plate 2, a frame 5 is connected to one side of the support plate 2, a hydraulic cylinder 6 is connected inside the frame 5, a cutter 7 is connected under the hydraulic cylinder 6, and two slide grooves 8 are provided in the frame 5;

[0021] An auxiliary device 9 is slidably connected in the slide groove 8, and the auxiliary device 9 includes a connecting plate 901, the connecting plate 901 is connected to one side of the frame 5, and a connecting block 904 is connected to one side of the tool 7. A pulley 902 is rotatably connected in the connecting plate 901, and a rope 903 is wound in the pulley 902. By setting the pulley 902 and the rope 903, the pulley 902 cooperates with the rope 903, so that the movement of the rope 903 can drive the pulley 902 to rotate, thereby realizing the change of the direction of the rope 903;

[0022] One end of the rope 903 is connected to a connecting block 904, and the other end of the rope 903 is connected to a fixing block 905. A first long plate 906 is connected below the fixing block 905, and two sliders 907 are connected to the first long plate 906. By setting the slide groove 8 and the slider 907, the slide groove 8 cooperates with the slider 907, so that the slide groove 8 limits the slider 907, thereby preventing the slider 907 from shaking when moving;

[0023] The slider 907 is slidably connected in the slide groove 8, the roller 913 is overlapped on the support plate 2, two telescopic rods 908 are connected under the first long plate 906, and the telescopic rod 908 is connected under the second long plate 910. The telescopic rod 908 is provided with a return spring 909 on the outer sleeve. By setting the return spring 909, when the PE film 3 is pulled in use, the return spring 909 applies elastic force to the second long plate 910 to keep it stable. When the PE films 3 of different thicknesses are used, the return spring 909 applies elastic force to the second long plate 910, and the elastic force drives the second long plate 910 to move, so that it always keeps in contact with the PE films 3 of different thicknesses.

[0024] Two fixed rods 911 are connected under the second long plate 910, one end of the two fixed rods 911 is connected to a bearing 912, the two bearings 912 are connected to the same roller 913, one end of the return spring 909 is connected under the first long plate 906, and the other end of the return spring 909 is connected to the second long plate 910.

[0025] The working principle of the utility model is:

[0026] When the cutting is completed, the hydraulic cylinder 6 drives the tool 7 to reset and move. At this time, the tool 7 drives the connecting block 904 to move. At this time, the connecting block 904 loses the tension on the rope 903. At this time, the roller 913 drives the fixed rod 911 and the second long plate 910 to move through the weight. At this time, the second long plate 910 drives the telescopic rod 908 and the first long plate 906 to move. The first long plate 906 drives the slider 907 to slide in the slide groove 8, and then drives the rope 903 to move through the pulley 902. When pulling the PE film 3, the return spring 909 applies elastic force to the second long plate 910, and the elastic force drives the second long plate 910, the fixed rod 911, the bearing 912 and the roller 913 to move, so that they are used to keep in contact with the PE film 3, so that the PE film 3 keeps in contact with the support plate 2, and the separation between the PE film 3 and the tool 7 after cutting is completed.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connection", "sliding connection" and "hinge" 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. An adjustable PE protective film trimming device, comprising a support leg (1), characterized in that: The support leg (1) is connected to a support plate (2), the support plate (2) is connected to a PE film (3), the support plate (2) is connected to a tension assembly (4), one side of the support plate (2) is connected to a frame (5), a hydraulic cylinder (6) is connected inside the frame (5), a tool (7) is connected below the hydraulic cylinder (6), and two slide grooves (8) are provided inside the frame (5); An auxiliary device (9) is slidably connected in the slide groove (8), and the auxiliary device (9) comprises a connecting plate (901), a pulley (902) is rotatably connected in the connecting plate (901), a rope (903) is wound in the pulley (902), one end of the rope (903) is connected to a connecting block (904), the other end of the rope (903) is connected to a fixed block (905), a first long plate (906) is connected below the fixed block (905), two sliding blocks (907) are connected to the first long plate (906), and two telescopic rods (908) are connected below the first long plate (906).

2. The adjustable PE protective film trimming device according to claim 1, characterized in that: A second long plate (910) is connected below the telescopic rod (908), and a pull-back spring (909) is disposed on the outer sleeve of the telescopic rod (908).

3. The adjustable PE protective film trimming device according to claim 2, characterized in that: Two fixing rods (911) are connected below the second long plate (910), one end of each of the two fixing rods (911) is connected to a bearing (912), and the same roller (913) is connected inside the two bearings (912).

4. The adjustable PE protective film trimming device according to claim 1, characterized in that: The connecting plate (901) is connected to one side of the frame (5), and the connecting block (904) is connected to one side of the cutter (7).

5. The adjustable PE protective film trimming device according to claim 3, characterized in that: The slider (907) is slidably connected in the slide groove (8), and the roller (913) is overlapped on the support plate (2).

6. The adjustable PE protective film trimming device according to claim 2, characterized in that: One end of the return spring (909) is connected under the first long plate (906), and the other end of the return spring (909) is connected to the second long plate (910).

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