Packaging film cutting device with positioning structure

Abstract

The utility model belongs to the technical field of packaging film processing equipment, and particularly relates to a packaging film cutting device with a positioning structure, which comprises a table body, the top surface of the table body is connected with a vertical frame, and the top surface of the vertical frame is connected with a first electric push rod. According to the packaging film cutting device, the pressing plate and the rubber block are arranged, before a cutting knife cuts off a packaging film, the movable end of the second electric push rod drives the sliding block to move, the sliding block drives the pressing plate to slide through the positioning block, and the rubber block at the bottom of the pressing plate can make contact with the packaging film; the cutting position of the packaging film can be extruded and fixed to the table body by extruding a rubber block, the position of the packaging film cannot deviate, an adjusting mechanism is arranged, the distance between limiting plates is adjusted according to the size of the packaging film, the conveyed packaging film is limited to the middle position of the table body through the limiting plates, and therefore the packaging film can be conveniently cut off. And the packaging film is prevented from deviating to one side of the table body in the conveying process to influence the cutting operation of the cutting knife on the packaging film.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging film processing equipment, and particularly relates to a packaging film cutting device with a positioning structure. Background Art

[0002] Packaging films mainly refer to the films used for packaging articles, usually including polyethylene films, biaxially oriented polyester (BOPET), BOPP films, CPP films, etc. These film materials form various characteristic packaging film products through different production processes and formulations.

[0003] For example, a film cutting machine that is easy to adjust, with the publication number "CN213170755U", includes a bottom plate. A side plate is fixedly installed on the side of the bottom plate. A rectangular groove is arranged in the middle of the rear side of the side plate. L-shaped clamping grooves are arranged in the middle of both side surfaces of the rectangular groove. A film roller is arranged inside the rectangular groove. A strip-shaped groove is arranged on the front end surface of the rectangular groove. A limiting rod is arranged on the front end surface of the strip-shaped groove. Fixed blocks B are fixedly installed on both sides of the front end surface of the side plate below the strip-shaped groove. A cross bar B is fixedly installed between the two fixed blocks B. By setting a strip-shaped sliding groove, a movable block and a clamping block, it is convenient to adjust the movement of the strip-shaped rod above the bottom plate. By setting a sliding groove, it is convenient to adjust the position of the circular through hole. By setting a grip rod, it is convenient to rotate the angle of the cutting blade, so that the cutting blade can be flexibly adjusted in position and angle according to different requirements.

[0004] The inventor believes that the above film cutting machine can also be used for cutting packaging films. However, when the film cutting machine is in use, since the packaging film cannot be positioned, during the cutting process, the cutting knife is prone to pulling the packaging film, resulting in the displacement of the packaging film, and the cut of the packaging film is prone to be uneven, thus affecting the subsequent processing of the packaging film.

[0005] Therefore, the utility model provides a packaging film cutting device with a positioning structure to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a packaging film cutting device with a positioning structure, aiming to solve the problem that when the cutting knife cuts the packaging film in the prior art, it is easy to pull the packaging film, resulting in the displacement of the packaging film and the uneven cut of the packaging film.

[0007] To achieve the above object, the present utility model provides the following technical solution: A packaging film cutting device with a positioning structure, including a table body, a vertical frame is connected to the top surface of the table body, a first electric push rod is connected to the top surface of the vertical frame, the movable end of the first electric push rod passes through the vertical frame and is connected to the top surface of the mounting plate, sliders are connected to both ends of the mounting plate, one end of the slider extends into a chute opened on the inner surface of the vertical frame, a cutting knife is connected to the bottom surface of the mounting plate, a through cutting groove is opened on the top surface of the table body at the lower end of the cutting knife, a second electric push rod is connected to the bottom surface of the table body, the movable end of the second electric push rod passes through the table body and is connected to the bottom surface of the sliding block, a positioning block is connected to one end surface of the sliding block, one end of the positioning block extends into the interior of the positioning groove, the positioning groove is opened on the top surface at both ends of the pressing plate, bolts are connected through both sides of the pressing plate, one end of the bolt extends into fixing holes opened on both sides of the positioning block, a rubber block is connected to the bottom surface of the pressing plate, through grooves are opened on the top surfaces of both the pressing plate and the rubber block, and adjusting mechanisms are further provided on the top surfaces at both ends of the table body.

[0008] To ensure that the position of the conveyed packaging film is in the middle of the table body, as a preferred embodiment of the packaging film cutting device with a positioning structure of the present utility model, the adjusting mechanism includes: a movable groove, bearings, a bidirectional screw rod, a motor, movable blocks and limit plates. Movable grooves are opened on the top surfaces at both ends of the table body, bearings are connected to both ends of the inner side of the movable groove, a bidirectional screw rod is connected between the two bearings, one end of the bidirectional screw rod extends into the table body and is connected to the output end of the motor, and movable blocks are connected through both ends of the bidirectional screw rod, and limit plates are connected to the top surfaces of the movable blocks.

[0009] To achieve the normal operation control of the first electric push rod, the second electric push rod and the motor, as a preferred embodiment of the packaging film cutting device with a positioning structure of the present utility model, the first electric push rod, the second electric push rod and the motor are electrically connected through a control switch and an external power source.

[0010] To ensure the movement track of the mounting plate and the movement of the sliding block, as a preferred embodiment of the packaging film cutting device with a positioning structure of the present utility model, the slider forms a sliding connection with the vertical frame through the chute, and the sliding block forms a sliding connection with the vertical frame through the chute.

[0011] To achieve the disassembly and assembly of the pressing plate, as a preferred embodiment of the packaging film cutting device with a positioning structure of the present utility model, the positioning block forms a sliding connection with the pressing plate through the positioning groove, and the bolt forms a threaded connection with the fixing hole through the pressing plate.

[0012] In order to realize the adjustment of the position of the limit plate, as an optimization of a packaging film cutting device with a positioning structure of the present utility model, a fixed connection is formed between the output end of the motor and the bidirectional screw, a threaded connection is formed between the movable block and the bidirectional screw, and a sliding connection is formed between the movable block and the table body through a movable groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing the pressing plate and the rubber block in the present utility model, before the cutting knife cuts the packaging film, the movable end of the second electric push rod drives the sliding block to move, so that the sliding block drives the pressing plate to slide through the positioning block, and the rubber block at the bottom of the pressing plate contacts the packaging film. By squeezing the rubber block, the packaging film at the cutting position can be squeezed and fixed on the table body, so that the position of the packaging film will not shift, ensuring the flatness of the cutting incision of the packaging film.

[0015] By providing the adjusting mechanism in the present utility model, the distance between the limit plates is adjusted according to the size of the conveyed packaging film, so that the limit plates can limit the conveyed packaging film to the middle position of the table body, avoiding the packaging film shifting to one side of the table body during the conveying process and affecting the cutting operation of the cutting knife on the packaging film. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a bottom view structural schematic diagram of the present utility model;

[0019] Figure 3 is a partial exploded structural schematic diagram of the pressing plate of the present utility model;

[0020] Figure 4 is a top view structural schematic diagram of the present utility model.

[0021] In the figure: 1, table body; 2, vertical frame; 3, first electric push rod; 4, mounting plate; 5, slider; 6, chute; 7, cutting knife; 8, cutting groove; 9, second electric push rod; 10, sliding block; 11, positioning block; 12, positioning groove; 13, pressing plate; 14, bolt; 15, fixing hole; 16, rubber block; 17, through groove; 18, movable groove; 19, bearing; 20, bidirectional screw; 21, motor; 22, movable block; 23, limit plate. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings 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 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.

[0023] Please refer to Figures 1-4 , the present utility model provides the following technical solutions: A packaging film cutting device with a positioning structure, including a table body 1, a vertical frame 2 is connected to the top surface of the table body 1, a first electric push rod 3 is connected to the top surface of the vertical frame 2, and the movable end of the first electric push rod 3 passes through the vertical frame 2 and is connected to the top surface of the mounting plate 4. Sliders 5 are connected to both ends of the mounting plate 4, and one end of the slider 5 extends into a chute 6 opened on the inner surface of the vertical frame 2. A cutting knife 7 is connected to the bottom surface of the mounting plate 4, and a through cutting groove 8 is opened on the top surface of the table body 1 at the lower end of the cutting knife 7. A second electric push rod 9 is connected to the bottom surface of the table body 1, and the movable end of the second electric push rod 9 passes through the table body 1 and is connected to the bottom surface of the sliding block 10. A positioning block 11 is connected to one end surface of the sliding block 10, and one end of the positioning block 11 extends into the inside of a positioning groove 12. The positioning groove 12 is opened on the top surface at both ends of the pressing plate 13. Bolts 14 are connected through both sides of the pressing plate 13, and one end of the bolt 14 extends into fixing holes 15 opened on both sides of the positioning block 11. A rubber block 16 is connected to the bottom surface of the pressing plate 13, and through grooves 17 are opened on the top surfaces of both the pressing plate 13 and the rubber block 16. Adjusting mechanisms are also provided on the top surfaces at both ends of the table body 1.

[0024] Preferably: The adjusting mechanism includes: a movable groove 18, a bearing 19, a bidirectional screw 20, a motor 21, a movable block 22, and a limiting plate 23. Movable grooves 18 are opened on the top surfaces at both ends of the table body 1, bearings 19 are connected to both ends of the inner side of the movable groove 18, a bidirectional screw 20 is connected between the two bearings 19, and one end of the bidirectional screw 20 extends into the table body 1 and is connected to the output end of the motor 21. Movable blocks 22 are connected through both ends of the bidirectional screw 20, and a limiting plate 23 is connected to the top surface of the movable block 22.

[0025] During specific use, start the motor 21, let the output end of the motor 21 drive the bidirectional screw 20 to rotate in the bearing 19, and the movable block 22 on the bidirectional screw 20 will move along the movable groove 18. In this way, the movable block 22 will drive the limiting plate 23 to move, thereby changing the distance between the limiting plates 23. When the winding device winds the packaging film, the limiting plate 23 can limit the position of the packaging film in the middle of the table body 1, avoiding the position of the packaging film from shifting to one side of the table body 1.

[0026] Preferably, the first electric push rod 3, the second electric push rod 9 and the motor 21 are electrically connected through a control switch and an external power supply.

[0027] During specific use, the first electric push rod 3, the second electric push rod 9 and the motor 21 can be controlled through a switch.

[0028] Preferably, the slider 5 is slidably connected to the vertical frame 2 through the chute 6, and the sliding block 10 is slidably connected to the vertical frame 2 through the chute 6.

[0029] During specific use, when the movable end of the first electric push rod 3 drives the mounting plate 4 to move, the sliders 5 at both ends of the mounting plate 4 will also slide in the chute 6 to ensure the movement track of the mounting plate 4. The movable end of the second electric push rod 9 can drive the sliding block 10 to move in the chute 6.

[0030] Preferably, the positioning block 11 is slidably connected to the pressing plate 13 through the positioning groove 12, and the bolt 14 is threadedly connected to the fixing hole 15 through the pressing plate 13.

[0031] During specific use, the positioning block 11 can be slidably placed into the positioning groove 12 on the pressing plate 13. At this time, the bolt 14 is passed through the pressing plate 13 and screwed into the fixing hole 15, so that the position of the positioning block 11 can be fixed in the positioning groove 12, and the sliding block 10 is connected to the pressing plate 13 through the positioning block 11.

[0032] Preferably, the output end of the motor 21 is fixedly connected to the bidirectional screw 20, the movable block 22 is threadedly connected to the bidirectional screw 20, and the movable block 22 is slidably connected to the table body 1 through the movable groove 18.

[0033] During specific use, the output end of the motor 21 can drive the bidirectional screw 20 to rotate in the bearing 19, so that the movable block 22 on the bidirectional screw 20 will move along the movable groove 18 on the table body 1.

[0034] Working principle of implementation: When using the packaging film cutting device with a positioning structure, pass one end of the packaging film through between the pressing plate 13 and the table body 1, and connect one end of the packaging film to the winding device on one side of the cutting device. At this time, adjust the position of the limiting plate 23 according to the size of the packaging film. Start the motor 21, and let the output end of the motor 21 drive the bidirectional screw rod 20 to rotate in the bearing 19. The movable block 22 on the bidirectional screw rod 20 will move along the movable groove 18. In this way, the movable block 22 will drive the limiting plate 23 to move, thereby changing the distance between the limiting plates 23. When the winding device winds the packaging film, the limiting plate 23 can limit the position of the packaging film in the middle of the table body 1, preventing the position of the packaging film from shifting to one side of the table body 1 and ensuring that the position of the packaging film does not exceed the cutting groove 8. When the packaging film needs to be cut, first start the second electric push rod 9, and let the movable end of the second electric push rod 9 drive the sliding block 10 to slide in the sliding groove 6, so that the sliding block 10 will drive the pressing plate 13 to move through the positioning block 11, and the rubber block 16 at the bottom of the pressing plate 13 will contact the packaging film on the table body 1. By slightly squeezing the rubber block 16, the packaging film at the cutting position can be squeezed and fixed on the table body 1. At this time, start the first electric push rod 3, and let the movable end of the first electric push rod 3 drive the mounting plate 4 to move downward, so that the mounting plate 4 can drive the cutting knife 7 to pass through the through groove 17. When one end of the cutting knife 7 enters the cutting groove 8, the cutting operation of the packaging film can be completed. At this time, because the packaging film at the cutting position is fixed, the position of the packaging film will not shift, thus ensuring the flatness of the cutting edge of the packaging film.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A packaging film cutting device with a positioning structure, comprising a table body (1), characterized in that: A vertical frame (2) is connected to the top surface of the table body (1). A first electric push rod (3) is connected to the top surface of the vertical frame (2). The movable end of the first electric push rod (3) passes through the vertical frame (2) and is connected to the top surface of the mounting plate (4). Sliders (5) are connected to both ends of the mounting plate (4). One end of the slider (5) extends into a chute (6) opened on the inner surface of the vertical frame (2). A cutting knife (7) is connected to the bottom surface of the mounting plate (4). A through cutting groove (8) is opened on the top surface of the table body (1) at the lower end of the cutting knife (7). A second electric push rod (9) is connected to the bottom surface of the table body (1). The movable end of the second electric push rod (9) passes through the table body (1) and is connected to the bottom surface of the sliding block (10). A positioning block (11) is connected to one end surface of the sliding block (10). One end of the positioning block (11) extends into the inside of a positioning groove (12). The positioning groove (12) is opened on the top surfaces at both ends of the pressing plate (13). Bolts (14) are connected through both side surfaces of the pressing plate (13). One end of the bolt (14) extends into fixing holes (15) opened on both side surfaces of the positioning block (11). A rubber block (16) is connected to the bottom surface of the pressing plate (13). Through grooves (17) are opened on the top surfaces of both the pressing plate (13) and the rubber block (16). Adjusting mechanisms are further provided on the top surfaces at both ends of the table body (1).

2. The cutting device for packaging film with a positioning structure according to claim 1, wherein: The adjusting mechanism includes: a movable groove (18), bearings (19), a bidirectional screw rod (20), a motor (21), movable blocks (22) and limiting plates (23). Movable grooves (18) are opened on the top surfaces at both ends of the table body (1). Bearings (19) are connected to both inner ends of the movable groove (18). A bidirectional screw rod (20) is connected between the two bearings (19). One end of the bidirectional screw rod (20) extends into the table body (1) and is connected to the output end of the motor (21). Movable blocks (22) are connected through both ends of the bidirectional screw rod (20). Limiting plates (23) are connected to the top surfaces of the movable blocks (22).

3. A cutting device for a packaging film with a positioning structure according to claim 1, characterized in that: The first electric push rod (3), the second electric push rod (9) and the motor (21) are electrically connected through a control switch and an external power supply.

4. A cutting device for a packaging film with a positioning structure according to claim 1, characterized in that: The slider (5) forms a sliding connection with the vertical frame (2) through the chute (6), and the sliding block (10) forms a sliding connection with the vertical frame (2) through the chute (6).

5. A cutting device for a packaging film with a positioning structure according to claim 1, characterized in that: The positioning block (11) forms a sliding connection with the pressing plate (13) through the positioning groove (12), and the bolt (14) forms a threaded connection with the fixing hole (15) through the pressing plate (13).

6. A cutting device for a packaging film with a positioning structure according to claim 2, characterized in that: The output end of the motor (21) forms a fixed connection with the bidirectional screw rod (20). The movable block (22) forms a threaded connection with the bidirectional screw rod (20). The movable block (22) forms a sliding connection with the table body (1) through the movable groove (18).

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