Automatic film connecting mechanism of packaging machine

Abstract

The utility model discloses an automatic film receiving mechanism of a packaging machine, which comprises a first unreeling shaft and a second unreeling shaft, and is characterized in that cutting components are arranged close to the discharge ends of the first unreeling shaft and the second unreeling shaft, the automatic film receiving mechanism further comprises a first material receiving roller and a second material receiving roller, the first material receiving roller and the second material receiving roller are connected with a movable driving component, and the movable driving component is connected with the cutting components. Sensors are arranged close to the first unwinding shaft and the second unwinding shaft and can control the movable driving assembly to drive the first material receiving roller and the second material receiving roller to be pressed tightly or away from each other. The film receiving device is simple in structure and reasonable in design, automatic film receiving operation of film materials on the two unwinding shafts of the packaging machine can be achieved, and it is guaranteed that follow-up packaging operation can be continuously conducted.

Description

Technical Field

[0001] The utility model relates to packaging equipment, in particular to an automatic film joining mechanism of a packaging machine. Background Art

[0002] A packaging machine is a special equipment used to package materials. When one type of packaging machine is working, the film material of the outer packaging is continuously unwound and conveyed through the unwinding shaft. After the film material on the unwinding shaft is unwound, the equipment needs to stop and wait for a new film roll to be added to the unwinding shaft for unwinding, which affects the overall smoothness of the equipment and processing efficiency. Therefore, some equipment that can perform film splicing has also appeared on the market, but its structure is relatively complex, and workers still need to perform certain auxiliary operations when splicing the film. The degree of automation is low and there are certain safety hazards. Utility Model Content

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide an automatic film splicing mechanism of a packaging machine for solving the above-mentioned problem.

[0004] To this end, the utility model is implemented by adopting the following scheme:

[0005] The automatic film splicing mechanism of the packaging machine includes a first unwinding shaft and a second unwinding shaft, and is characterized in that a cutting assembly is provided near the discharge ends of the first unwinding shaft and the second unwinding shaft, and also includes a first material receiving roller and a second material receiving roller. The first and second material receiving rollers are connected to a mobile driving assembly, and sensors are provided near the first and second unwinding shafts. The sensors can control the mobile driving assembly to drive the first and second material receiving rollers to press against or move away from each other.

[0006] The cutting assembly comprises a lifting seat, which is connected to the lifting drive assembly. A lower cutter is arranged on the lifting seat, an upper cutter seat is arranged above the lower cutter, and a cutter groove cooperating with the lower cutter is arranged on the upper cutter seat.

[0007] A pressure plate seat is slidably arranged on the lifting seat, a spring is arranged between the pressure plate seat and the lifting seat, a pressure strip is installed on the pressure plate seat, and when the lifting seat rises, the pressure strip first positions and presses the packaging film with the upper knife seat.

[0008] One end of the upper knife seat is rotatably connected to the frame, the other end of the upper knife seat is provided with a slot, the frame is provided with a positioning block corresponding to the slot, the upper knife seat is provided with a through hole for the bolt to pass through, and the positioning block is provided with a threaded hole screwed with the bolt at a position corresponding to the through hole.

[0009] The mobile driving assembly includes a driving disk, a first transmission arm and a second transmission arm. The driving disk is connected to the driving motor in a transmission manner. The first material receiving roller is arranged on the first moving frame, and the second material receiving roller is arranged on the second moving frame. Guide columns are passed through the first and second moving frames. One end of the first transmission arm is eccentrically hinged to the driving disk, and the other end is hinged to the first moving frame. One end of the second transmission arm is eccentrically hinged to the driving disk, and the other end is hinged to the second moving frame.

[0010] The automatic film splicing mechanism of the packaging machine of the above technical solution can realize automatic cutting of the film material when it is about to be unwound and splice it with another roll of film material. The film splicing can be fully automated, which effectively reduces the labor intensity of workers and improves the safety of the overall operation of the equipment. The film splicing efficiency is high and the film splicing quality is reliable, which can ensure uninterrupted and continuous operation of the equipment and improve the smoothness and stability of the equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model has the following drawings:

[0012] Figure 1 This is a view of the utility model after removing part of the frame plate;

[0013] Figure 2 for Figure 1 A partial enlarged view of the area pointed by A in the middle;

[0014] Figure 3 This is a bottom perspective view of the present invention;

[0015] Figure 4 It is a structural schematic diagram of the upper knife seat of the utility model. DETAILED DESCRIPTION

[0016] As shown in the figure, the automatic film splicing mechanism of the packaging machine disclosed in the utility model includes a first unwinding shaft 1 and a second unwinding shaft 2. A cutting assembly is provided near the discharge end of the first unwinding shaft 1 and the second unwinding shaft 2. Specifically, the cutting assembly includes a lifting seat 5, and the lifting seat 5 is connected to the lifting drive assembly. In this embodiment, the lifting drive assembly is a driving cylinder 3. A lower cutter 8 is provided on the lifting seat 5, and an upper knife seat 10 is provided above the lower cutter 8. The upper knife seat 10 is provided with a knife groove 22 that cooperates with the lower cutter 8. Further, a pressure plate seat 6 is slidably provided on the lifting seat 5, a spring 4 is provided between the pressure plate seat 6 and the lifting seat 5, and a pressure strip 7 is installed on the pressure plate seat 6. When the lifting seat 5 rises, the pressure strip 7 first positions and presses the packaging film with the upper knife seat 10 to ensure the stability of the packaging film position during cutting. One end of the upper knife seat 10 is rotatably connected to the frame, and the other end of the upper knife seat 10 is provided with a card slot 21. The frame is provided with a positioning block 9 corresponding to the card slot 21. The upper knife seat 10 is provided with a through hole 20 for the bolt to pass through. The positioning block is provided with a threaded hole screwed with the bolt at the position corresponding to the through hole. The card slot 21 cooperates with the positioning block 9 to realize the positioning of the upper knife seat 10 after it is swung into place, and then it is fastened by bolts to ensure the stability of the position of the upper knife seat. It also includes a first material receiving roller 11 and a second material receiving roller 12. The first and second material receiving rollers are connected to the mobile drive assembly. Sensors 19 are provided near the first and second unwinding shafts. The sensor 19 can control the mobile drive assembly to drive the first and second material receiving rollers to press or move away from each other. Specifically, the mobile drive assembly includes a drive disc 14, a first transmission arm 16 and a second transmission arm 15, the drive disc 14 is connected to the drive motor, the first material receiving roller 11 is arranged on the first mobile frame 17, the second material receiving roller 12 is arranged on the second mobile frame 13, the first and second mobile frames are provided with guide pillars 18, one end of the first transmission arm 16 is eccentrically hinged to the drive disc 14, and the other end is hinged to the first mobile frame 17, one end of the second transmission arm 15 is eccentrically hinged to the drive disc 14, and the other end is hinged to the second mobile frame 13. Of course, in addition to the above structure, the mobile drive assembly can also use corresponding cylinders to drive the first and second mobile frames to move, or use gears on the first and second mobile frames, the gears are connected to corresponding motors, and the frame is provided with a rack structure meshing with the gears, or use common linear drive mechanisms such as linear motors to drive the first and second mobile frames to move.

[0017] The working principle of the utility model is as follows: when the packaging film on one of the unwinding shafts is about to be unwound, the sensor can sense the color mark on the packaging film and feedback information, then the lifting seat 5 rises, the pressure strip 7 first cooperates with the upper knife seat 10 to press the packaging film to achieve its positioning, then the lifting seat 5 continues to rise, so that the lower cutter 8 rises and cooperates with the knife groove 22 on the upper knife seat 10 to cut the packaging film, then the lifting seat 5 descends and resets, and at the same time, according to the color mark information fed back by the sensor, the driving disk 14 is controlled to rotate at an appropriate time point, and the first and second transmission arms are driven to drive the first and second moving frames to approach each other, and when the end of the cut packaging film is pulled to the first and second material receiving rollers, the first and second material receiving rollers just press the end of the cut packaging film and the starting end of the packaging film to be unwound on the other unwinding shaft together, and the starting end of the packaging film to be unwound is already provided with adhesive or tape, so that the end of the cut packaging film and the starting end of the packaging film to be unwound are bonded together to achieve film splicing operation, and the above-mentioned film splicing operation can be completed under continuous traction.

[0018] The structure of the utility model can realize automatic cutting of the film material when it is about to be unwound and splicing it with another roll of film material. The film splicing can be fully automated, which effectively reduces the labor intensity of workers and improves the safety of the overall operation of the equipment. The film splicing efficiency is high and the film splicing quality is reliable, which can ensure uninterrupted and continuous operation of the equipment and improve the smoothness and stability of the equipment operation.

Claims

1. An automatic film splicing mechanism of a packaging machine, comprising a first unwinding shaft (1) and a second unwinding shaft (2), characterized in that: A cutting assembly is provided near the discharge ends of the first unwinding shaft (1) and the second unwinding shaft (2), and also includes a first material receiving roller (11) and a second material receiving roller (12). The first and second material receiving rollers are connected to a movable driving assembly. A sensor (19) is provided near the first and second unwinding shafts. The sensor (19) can control the movable driving assembly to drive the first and second material receiving rollers to press against or move away from each other.

2. The automatic film-joining mechanism of the packaging machine according to claim 1, characterized in that The cutting assembly comprises a lifting seat (5), the lifting seat (5) being connected to the lifting drive assembly, the lifting seat (5) being provided with a lower cutting knife (8), an upper knife seat (10) being provided above the lower cutting knife (8), and the upper knife seat (10) being provided with a knife groove (22) cooperating with the lower cutting knife (8).

3. The automatic film-joining mechanism of the packaging machine according to claim 2, characterized in that A pressure plate seat (6) is slidably arranged on the lifting seat (5), a spring (4) is arranged between the pressure plate seat (6) and the lifting seat (5), and a pressure strip (7) is installed on the pressure plate seat (6). When the lifting seat (5) rises, the pressure strip (7) first positions and presses the packaging film together with the upper knife seat (10).

4. The automatic film-joining mechanism of the packaging machine according to claim 2, characterized in that One end of the upper knife seat (10) is rotatably connected to the frame, the other end of the upper knife seat (10) is provided with a slot (21), the frame is provided with a positioning block (9) corresponding to the slot (21), the upper knife seat (10) is provided with a through hole (20) for a bolt to pass through, and the positioning block is provided with a threaded hole for threading with the bolt at a position corresponding to the through hole.

5. The automatic film-joining mechanism of the packaging machine according to claim 1, characterized in that The mobile drive assembly comprises a driving disc (14), a first transmission arm (16) and a second transmission arm (15); the driving disc (14) is connected to the driving motor in a driving manner; the first material receiving roller (11) is arranged on a first moving frame (17); the second material receiving roller (12) is arranged on a second moving frame (13); guide columns (18) are provided on the first and second moving frames; one end of the first transmission arm (16) is eccentrically hinged to the driving disc (14) and the other end is hinged to the first moving frame (17); one end of the second transmission arm (15) is eccentrically hinged to the driving disc (14) and the other end is hinged to the second moving frame (13).

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