Film cutting mechanism and its window pasting machine

Abstract

The utility model discloses a kind of cutting membrane mechanism and its window pasting machine, it includes rack, driving assembly, connecting rod assembly and cutter, driving assembly is installed in rack, the output end of driving assembly is equipped with eccentric wheel, one end of connecting rod assembly is eccentrically connected with eccentric wheel, and connecting rod assembly is movably connected with eccentric wheel, the other end of connecting rod is movably connected with cutter, cutter is slidably arranged in rack, cutter has protruding position and retracted position by sliding relative to rack, eccentric wheel rotates under the driving of driving assembly and drives connecting rod assembly to move, by the movement of connecting rod assembly, cutter is switched between protruding position and retracted position. The cutting membrane mechanism of the utility model has the advantages of convenient adjustment and high product pass rate. The utility model also discloses a window pasting machine.

Description

Technical Field

[0001] This utility model relates to the field of post-printing packaging machinery and equipment technology, and in particular to a film cutting mechanism and its window pasting machine. Background Technology

[0002] As people's living standards improve, they not only have higher and higher requirements for the products themselves, but also for the product packaging. Many product packaging boxes now have one or more sections cut out to create windows, and transparent films are pasted over these windows. Consumers can directly observe the product inside the box through the transparent film, making this type of packaging more likely to gain consumer recognition and favor.

[0003] For example, boxed tissues have such window films. To facilitate the use of tissues, an opening is cut into these window films. Existing window-applying machines can be found in Chinese patent CN 202293439 U. They achieve the cutting of the opening by the cutter through the cooperation between the cam and the linkage component. In the actual operation of the equipment, one rotation of the cam is equivalent to cutting an opening. Therefore, the cam is relatively troublesome to assemble and adjust. Every time the product specifications are changed, the cam needs to be adjusted. The deviation of manual adjustment affects the accuracy of the subsequent cutter cutting, such as causing deviations in the length of the opening, which affects the product qualification rate.

[0004] To solve the above problems, it is necessary to provide a film cutting mechanism and its window pasting machine. Utility Model Content

[0005] One objective of this invention is to provide a film cutting mechanism that is easy to adjust and has a high product qualification rate.

[0006] Another objective of this invention is to provide a window patching machine that is easy to adjust and has a high product qualification rate.

[0007] To achieve the above objectives, the film cutting mechanism and window patching machine provided by this utility model include a frame, a drive assembly, a linkage assembly, and a cutter. The drive assembly is mounted on the frame, and an eccentric wheel is provided at the output end of the drive assembly. One end of the linkage assembly is eccentrically connected to the eccentric wheel, and the linkage assembly is movably connected to the eccentric wheel. The other end of the linkage assembly is movably connected to the cutter. The cutter is slidably disposed on the frame and has an extended position and a retracted position relative to the frame. The eccentric wheel rotates under the drive of the drive assembly and drives the linkage assembly to move. The movement of the linkage assembly is used to switch the cutter between the extended position and the retracted position.

[0008] Preferably, the connecting rod assembly includes a first bearing, a connecting rod, and a second bearing. One end of the connecting rod is eccentrically connected to the eccentric wheel via the first bearing, and the other end of the connecting rod is connected to the cutting tool via the second bearing.

[0009] Specifically, the first bearing is a fisheye bearing.

[0010] Specifically, the second bearing is a fisheye bearing or a rolling bearing.

[0011] Specifically, the drive component is a rotary motor or a rotary electric motor.

[0012] Preferably, the cutting mechanism further includes a guide assembly, which includes a slide rail and a slider. The slide rail is mounted on the frame, and the slider is connected to the cutter. The slider is slidably disposed on the slide rail so that the cutter is slidably disposed on the frame.

[0013] Preferably, the frame includes a base and a mounting plate, the mounting plate being vertically mounted on the base, the drive assembly being mounted on the mounting plate, and the cutter being slidably mounted on the mounting plate.

[0014] Specifically, the film cutting mechanism further includes a roller for feeding material, the roller being rotatably mounted on the base, and the cutter being mounted at an angle on the mounting plate, with the tip of the cutter pointing towards the roller.

[0015] Specifically, the mounting plate has mounting holes corresponding to the drive assembly.

[0016] To achieve the above objectives, the window patching machine provided by this utility model includes a frame, a feeding mechanism, and the aforementioned film cutting mechanism. The feeding mechanism is installed on the frame, and the film cutting mechanism is installed on the frame.

[0017] Compared with the prior art, the film cutting mechanism and window patching machine provided by this utility model, through the cooperation between the drive component and the connecting rod component, has an eccentric wheel at the output end of the drive component. One end of the connecting rod component is eccentrically connected to the eccentric wheel, and the connecting rod component is movably connected to the eccentric wheel. The other end of the connecting rod component is movably connected to the cutter. Since both ends of the connecting rod component are movably connected, the eccentric drive of the connecting rod component, in conjunction with the eccentric drive of the eccentric wheel, causes the connecting rod component to move under the eccentric drive of the eccentric wheel and to move the cutter back and forth, converting the rotational motion of the drive component into the linear motion of the cutter. The drive component is a direct rotation drive mode, that is, a circular motion of a perfect circle. When the size of the product opening changes, the size of the product opening can be adjusted simply by adjusting the rotation speed of the drive component. Compared with calculating the outer edge of the traditional cam and adjusting it, it is not only simple in structure and easy to adjust, but also improves accuracy and increases the product qualification rate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the film cutting mechanism of this utility model.

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the film cutting mechanism of this utility model from another angle.

[0020] Figure 3 This is a front view of the film cutting mechanism of this utility model.

[0021] Figure 4 The driving component of the film cutting mechanism of this utility model is along Figure 3 The diagram shows the state after rotation in the direction indicated by arrow A.

[0022] Figure 5 The driving component of the film cutting mechanism of this utility model is along Figure 4 The diagram shows the state after rotation in the direction indicated by arrow A.

[0023] Figure 6 This is a partial structural diagram of the film cutting mechanism of this utility model. Detailed Implementation

[0024] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] The window patching machine of this utility model includes a frame (not shown), a feeding mechanism (not shown), and a film cutting mechanism 10. The feeding mechanism is installed on the frame, and the film cutting mechanism 10 is installed on the frame. Since the focus of this application is on the film cutting mechanism 10, other structures of the window patching machine will not be described in detail in this patent. Please refer to [link to relevant documentation]. Figures 1 to 6 The film cutting mechanism 10 includes a frame 1, a drive assembly 2, a connecting rod assembly 3, and a cutter 4. The drive assembly 2 is mounted on the frame 1, and an eccentric wheel 21 is provided at the output end of the drive assembly 2. One end of the connecting rod assembly 3 is eccentrically connected to the eccentric wheel 21 (connection point see...). Figure 6 Point a), and the connecting rod assembly 3 is movably connected to the eccentric wheel 21, the other end of the connecting rod 32 is movably connected to the cutter 4, the cutter 4 is slidably mounted on the frame 1, and the cutter 4 has an extended position and a retracted position relative to the frame 1 (see the extended position). Figure 4 See the retracted position. Figure 6The eccentric wheel 21 rotates under the drive of the drive assembly 2, driving the connecting rod assembly 3 to move. The movement of the connecting rod assembly 3 is used to switch the cutter 4 between the extended and retracted positions. Through the cooperation between the drive assembly 2 and the connecting rod assembly 3, the output end of the drive assembly 2 is provided with the eccentric wheel 21. One end of the connecting rod assembly 3 is eccentrically connected to the eccentric wheel 21, and the connecting rod assembly 3 is movably connected to the eccentric wheel 21. The other end of the connecting rod assembly 3 is movably connected to the cutter 4. Since both ends of the connecting rod assembly 3 are movably connected, in conjunction with the eccentric drive of the eccentric wheel 21, the connecting rod assembly 3 moves under the eccentric drive of the eccentric wheel 21 and drives the cutter 4 to move back and forth. The rotational motion of the drive assembly 2 is converted into the linear motion of the cutter 4. The drive assembly 2 is a direct rotation drive mode, that is, a circular motion of a perfect circle. When the size of the product opening changes, the size of the product opening can be adjusted simply by adjusting the rotation speed of the drive assembly 2. Compared with calculating the outer edge of the traditional cam and adjusting it, it is not only simple in structure and easy to adjust, but also improves accuracy and increases the product qualification rate. More specifically, as follows:

[0026] Please see Figure 1 The connecting rod assembly 3 includes a first bearing 31, a connecting rod 32, and a second bearing 33. One end of the connecting rod 32 is eccentrically connected to the eccentric wheel 21 via the first bearing 31, and the other end of the connecting rod 32 is connected to the cutter 4 via the second bearing 33. In this embodiment, the first bearing 31 is a fisheye bearing. The second bearing 33 is a fisheye bearing, meaning that a high degree of automation can be achieved on both sides. Of course, in other embodiments, the second bearing 33 is a fish-rolling bearing.

[0027] Please see Figures 1 to 2 The drive component 2 is a rotary motor or rotary electric motor. The drive component 2 is connected to an external control system. The control system adjusts the rotation speed of the drive component 2 by calculating the opening size of the product, so that the film cutting mechanism 10 of this application can be adapted to products with various opening sizes.

[0028] Please see Figure 1 The film cutting mechanism 10 also includes a guide assembly 5, which includes a slide rail 51 and a slider 52. The slide rail 51 is mounted on the frame 1, and the slider 52 is connected to the cutter 4. The slider 52 is slidably disposed on the slide rail 51 so that the cutter 4 is slidably disposed on the frame 1. Of course, the manufacturer can adjust the specific structure of the guide assembly 5 according to actual needs.

[0029] Please see Figures 1 to 6 The frame 1 includes a base 11 and a mounting plate 12. The mounting plate 12 is vertically mounted on the base 11. The drive assembly 2 is mounted on the mounting plate 12. The cutter 4 is slidably mounted on the mounting plate 12.

[0030] Please see Figures 1 to 6The film cutting mechanism 10 also includes a roller 6 for feeding material. The roller 6 is rotatably mounted on the base 11. The cutter 4 is mounted at an angle on the mounting plate 12, with the tip of the cutter 4 pointing towards the roller 6. The mounting plate 12 has mounting holes 121 corresponding to the drive assembly 2, thereby making the components more compact.

[0031] Please refer to the following: Figures 1 to 6 The working process of the film cutting mechanism 10 of this utility model is as follows:

[0032] The opening size of the product is input into the operating platform. The operating platform is electrically connected to the drive assembly 2. Under the control of the control system of the operating platform, the drive assembly 2 rotates at the target speed. The eccentric wheel 21 rotates under the drive of the drive assembly 2 and drives the linkage assembly 3 to move. The movement of the linkage assembly 3 is used to switch the cutter 4 between the extended position and the retracted position. When the cutter 4 is in the extended position, the cutter 4 cuts the product. When the cutter 4 is in the retracted position, the cutter 4 stops cutting the product. The time for the cutter 4 to cut into the product is t. The length of the opening is the speed of the linkage assembly 3 multiplied by the time t for the cutter 4 to cut into the product.

[0033] Through the cooperation between the drive assembly 2 and the connecting rod assembly 3, the output end of the drive assembly 2 is provided with an eccentric wheel 21. One end of the connecting rod assembly 3 is eccentrically connected to the eccentric wheel 21, and the connecting rod assembly 3 is movably connected to the eccentric wheel 21. The other end of the connecting rod assembly 3 is movably connected to the cutter 4. Since both ends of the connecting rod assembly 3 are movably connected, in conjunction with the eccentric drive of the eccentric wheel 21, the connecting rod assembly 3 moves under the eccentric drive of the eccentric wheel 21 and drives the cutter 4 to move back and forth, converting the rotational motion of the drive assembly 2 into the linear motion of the cutter 4. The drive assembly 2 is a direct rotation drive mode, that is, a circular motion of a perfect circle. When the size of the product opening changes, the size of the product opening can be adjusted simply by adjusting the rotational speed of the drive assembly 2. Compared with calculating the outer edge of a traditional cam and adjusting it, it is not only simple in structure and easy to adjust, but also improves accuracy and increases the product qualification rate.

[0034] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A film cutting mechanism, characterized in that, The device includes a frame, a drive assembly, a linkage assembly, and a cutting tool. The drive assembly is mounted on the frame, and its output end has an eccentric wheel. One end of the linkage assembly is eccentrically connected to the eccentric wheel and is movably connected to the eccentric wheel. The other end of the linkage assembly is movably connected to the cutting tool. The cutting tool is slidably disposed on the frame and has an extended position and a retracted position relative to the frame. The eccentric wheel rotates under the drive of the drive assembly and drives the linkage assembly to move. The movement of the linkage assembly causes the cutting tool to switch between the extended position and the retracted position.

2. The film cutting mechanism as described in claim 1, characterized in that, The connecting rod assembly includes a first bearing, a connecting rod, and a second bearing. One end of the connecting rod is eccentrically connected to the eccentric wheel via the first bearing, and the other end of the connecting rod is connected to the cutting tool via the second bearing.

3. The film cutting mechanism as described in claim 2, characterized in that, The first bearing is a fisheye bearing.

4. The film cutting mechanism as described in claim 2, characterized in that, The second bearing is a fisheye bearing or a rolling bearing.

5. The film cutting mechanism as described in claim 1, characterized in that, The drive component is a rotary motor or rotary engine.

6. The film cutting mechanism as described in claim 1, characterized in that, It also includes a guide assembly, which includes a slide rail and a slider. The slide rail is mounted on the frame, and the slider is connected to the tool. The slider is slidably disposed on the slide rail so that the tool is slidably disposed on the frame.

7. The film cutting mechanism as described in claim 1, characterized in that, The frame includes a base and a mounting plate, the mounting plate being vertically mounted on the base, the drive assembly being mounted on the mounting plate, and the cutter being slidably mounted on the mounting plate.

8. The film cutting mechanism as described in claim 7, characterized in that, It also includes a roller for feeding material, the roller being rotatably mounted on the base, and the cutter being mounted on the mounting plate with the tip of the cutter pointing towards the roller.

9. The film cutting mechanism as described in claim 7, characterized in that, The mounting plate has mounting holes corresponding to the drive assembly.

10. A window patching machine, comprising a frame and a feeding mechanism, wherein the feeding mechanism is mounted on the frame, characterized in that, It also includes a film-cutting mechanism as described in any one of claims 1 to 9, the film-cutting mechanism being mounted on the frame.

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