Plastic film punching device

Abstract

The utility model discloses a plastic film punching device which comprises a base, a receding groove is formed in the middle of the upper end of the base, an installation box is arranged at the upper end of the base, a puncher is placed in an installation groove formed in the front side of the lower end of the installation box, the puncher corresponds to the receding groove in the vertical direction, and the plastic film punching device further comprises a fixing mechanism. The fixing mechanism comprises a fixing rod, connecting plates and clamping plates, the fixing rod is arranged on the rear side in the mounting box, the connecting plates are slidably connected to the left side and the right side of the outer arc face of the fixing rod and slidably connected with the bottom wall of the mounting box, the clamping plates are arranged at the front ends of the connecting plates, and the inner surfaces of the clamping plates make contact with the outer arc face of the puncher. The plastic film punching device further comprises a control switch, the control switch is located outside the base, the input end of the control switch is electrically connected with an external power source, according to the plastic film punching device, the assembling process is simplified, the time for replacing the puncher is shortened, and the punching efficiency of the plastic film is further improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic film technology, specifically to a plastic film cutting device. Background Technology

[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, used for packaging and as a coating layer. A plastic film cutting device is a mechanical device specifically designed to cut holes of specific shapes in plastic film. This device can accurately cut holes of the required shape and size in plastic film to meet specific industrial or commercial needs.

[0003] When using a plastic film cutting device, the plastic film to be cut is usually moved to the top of the worktable by an external traction device, then the plastic film is fixed by a limiting component, and then the driving device drives the punch to move so that the punch passes through the plastic film, thereby realizing the cutting of the plastic film.

[0004] Existing plastic film cutting devices typically require the punch to be replaced according to different cutting needs. Although the punch can be installed and fixed by connecting with a bolt, the assembly and disassembly are cumbersome, increasing the time required to replace the punch and reducing the cutting efficiency of plastic film. Therefore, we propose a plastic film cutting device. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a plastic film cutting device that simplifies the assembly process, shortens the time spent replacing the punch, and further improves the cutting efficiency of plastic films, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic film cutting device, including a base, an avoidance groove provided in the middle of the upper end of the base, an installation box provided at the upper end of the base, a punch placed in the installation groove opened on the front side of the lower end of the installation box, the punch corresponding to the upper and lower positions of the avoidance groove, and a fixing mechanism.

[0007] The fixing mechanism includes a fixing rod, a connecting plate, and a clamping plate. The fixing rod is located inside the rear side of the mounting box. The left and right sides of the outer arc surface of the fixing rod are slidably connected to the connecting plates, which are slidably connected to the bottom wall of the mounting box. The front end of each connecting plate is provided with a clamping plate, and the inner surface of the clamping plate is in contact with the outer arc surface of the punch. This simplifies the assembly process, shortens the time spent replacing the punch, and further improves the efficiency of cutting holes in plastic film.

[0008] Furthermore, it also includes a control switch, which is located outside the base. The input terminal of the control switch is electrically connected to an external power source and can regulate the electrical components inside the device.

[0009] Furthermore, the fixing mechanism also includes an adjusting plate, uprights, a mounting base, a screw, and an adjusting knob. The adjusting plate is slidably connected to the inner wall of the mounting box. Adjusting grooves are provided on both the left and right sides of the upper end of the adjusting plate. The uprights are all located on the rear side of the upper end of the connecting plate, with the upper sides of the uprights located inside the vertically adjacent adjusting grooves. A mounting base is provided in the middle of the lower end of the adjusting plate. The screw is rotatably connected to the middle of the rear wall of the mounting box. The mounting base is threaded to the middle of the outer arc surface of the screw through a threaded hole provided in the middle of its front end. An adjusting knob is provided at the rear end of the screw, which can be used to install and fix the punch.

[0010] Furthermore, support rods are respectively provided at the four corners of the upper end of the base, and the upper ends of the support rods are fixedly connected to the lower end of the mounting plate. An electric push rod is provided on the rear side of the lower end of the mounting plate. The lower end of the telescopic end of the electric push rod is fixedly connected to the upper end of the mounting box. The input end of the electric push rod is electrically connected to the output end of the control switch, which can adjust the position of the punch.

[0011] Furthermore, a push rod is provided in the middle of the top wall of the mounting plate. The lower side of the push rod is located inside the punch. The push rod will be inserted into the inside of the punch and finally push out the plastic film fragments remaining inside the punch.

[0012] Furthermore, each of the sliding holes at the front of the lower end of the mounting box is slidably connected to a sliding column, and each sliding column is equipped with a baffle at its upper end. The sliding columns are located on the front and rear sides of the outer arc surface of the punch, respectively. The lower end of each sliding column is fixedly connected to the upper end of the pressure plate. A spring is provided between the lower end of the mounting box and the upper end of the pressure plate. The springs are all sleeved on the outside of the lower side of the sliding column, which can fix the plastic film and prevent the plastic film from deforming.

[0013] Furthermore, a limiting plate is provided on the lower side of the front wall of the mounting box. The lower end of the limiting plate contacts the upper end of the punch, which can limit the punch and prevent the position of the punch from shifting.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This plastic film perforation device has the following advantages:

[0015] By using the connecting plate and clamping plate together, the punch can be installed and fixed, replacing the traditional method of installing and fixing the punch by connecting with a bolt. This simplifies the assembly process, shortens the time spent replacing the punch, and further improves the efficiency of cutting holes in plastic film. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the right side of this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0019] In the diagram: 1. Base, 2. Support rod, 3. Mounting plate, 4. Electric push rod, 5. Mounting box, 6. Punching tool, 7. Fixing mechanism, 71. Fixing rod, 72. Connecting plate, 73. Clamping plate, 74. Adjusting plate, 75. Upright pole, 76. Mounting seat, 77. Screw, 78. Adjusting knob, 8. Sliding column, 9. Pressure plate, 10. Spring, 11. Top rod, 12. Limiting plate, 13. Clearance groove, 14. Control switch. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3 This embodiment provides a technical solution: a plastic film cutting device, including a base 1, an avoidance groove 13 is provided in the middle of the upper end of the base 1, an installation box 5 is provided at the upper end of the base 1, a punch 6 is placed in the installation groove opened on the front side of the lower end of the installation box 5, the punch 6 corresponds to the upper and lower positions of the avoidance groove 13, and also includes a fixing mechanism 7.

[0022] Fixing mechanism 7 includes a fixing rod 71, a connecting plate 72, and a clamping plate 73. The fixing rod 71 is located inside the rear side of the mounting box 5. The connecting plate 72 is slidably connected to both sides of the outer arc surface of the fixing rod 71. The connecting plate 72 is slidably connected to the bottom wall of the mounting box 5. The front end of the connecting plate 72 is provided with a clamping plate 73. The inner surface of the clamping plate 73 is in contact with the outer arc surface of the punch 6. The fixing mechanism 7 also includes an adjusting plate 74, a vertical rod 75, a mounting base 76, a screw 77, and an adjusting knob 78. The adjusting plate 74 is slidably connected to the inner wall of the mounting box 5. The upper left and right sides of the adjusting plate 74 are provided with adjusting grooves. The vertical rod 75 is located on the upper end of the connecting plate 72. On the rear side, the upper side of the upright 75 is located inside the vertically adjacent adjustment slots. The middle of the lower end of the adjustment plate 74 is provided with a mounting seat 76. The screw 77 is rotatably connected to the middle of the rear wall of the mounting box 5. The mounting seat 76 is threaded to the middle of the outer arc surface of the screw 77 through the threaded hole provided at the middle of its front end. The rear end of the screw 77 is provided with an adjustment knob 78. Through the cooperation of the connecting plate 72 and the clamping plate 73, the punch 6 can be installed and fixed, replacing the traditional method of installing and fixing the punch 6 through the connection of the bolt body. This simplifies the assembly process, shortens the time spent replacing the punch 6, and further improves the efficiency of cutting holes in plastic film.

[0023] It also includes a control switch 14, which is located outside the base 1. The input terminal of the control switch 14 is electrically connected to an external power supply and can regulate the electrical components inside the equipment.

[0024] Support rods 2 are respectively installed at the four corners of the upper end of the base 1. The upper ends of the support rods 2 are fixedly connected to the lower end of the mounting plate 3. An electric push rod 4 is installed on the rear side of the lower end of the mounting plate 3. The lower end of the telescopic end of the electric push rod 4 is fixedly connected to the upper end of the mounting box 5. The input end of the electric push rod 4 is electrically connected to the output end of the control switch 14. Then, by adjusting the control switch 14, the electric push rod 4 starts to run. The telescopic end of the electric push rod 4 extends, thereby driving the punch 6 and the pressure plate 9 to move downward through the mounting box 5.

[0025] Among them: a push rod 11 is provided in the middle of the top wall of the mounting plate 3. The lower side of the push rod 11 is located inside the punch 6. The push rod 11 will be inserted into the inside of the punch 6 and finally push out the plastic film fragments remaining inside the punch 6.

[0026] Among them: sliding pins 8 are slidably connected in the sliding holes provided at the front of the lower end of the mounting box 5. Each sliding pin 8 is provided with a baffle at its upper end. The sliding pins 8 are located on the front and rear sides of the outer arc surface of the punch 6. The lower ends of the sliding pins 8 are fixedly connected to the upper ends of the pressure plate 9. Springs 10 are respectively provided between the lower end of the mounting box 5 and the upper end of the pressure plate 9. The springs 10 are all sleeved on the outside of the lower side of the sliding pins 8. The pressure plate 9 will first contact the upper surface of the plastic film, causing the sliding pins 8 to slide upwards. The springs 10 will contract, thereby fixing the plastic film.

[0027] Wherein: A limiting plate 12 is provided on the lower side of the front wall of the mounting box 5. The lower end of the limiting plate 12 contacts the upper end of the punch 6. According to the cutting requirements, the corresponding model of punch 6 is inserted into the interior of the mounting box 5, and finally the punch 6 contacts the lower end of the limiting plate 12, thereby limiting the punch 6.

[0028] The working principle of the plastic film cutting device provided by this utility model is as follows: Before use, according to the cutting requirements, insert the corresponding model punch 6 into the installation box 5, and finally make the punch 6 contact the lower end of the limiting plate 12. Then, the operator rotates the adjustment knob 78. During the rotation of the adjustment knob 78, the installation seat 76 will move forward through the threaded connection. The installation seat 76 will move the adjustment plate 74 forward. During the movement of the adjustment plate 74, the upright rod 75 slides and rotates relative to the adjustment groove inside the adjustment groove, so that the adjustment plate 74 drives the connecting plate 72 to move along the fixed rod 71 through the upright rod 75. The connecting plate 72 will drive the clamping plate 73 to move. At this time, the distance between the two clamping plates 73 gradually decreases, and finally the inner arc surface of the clamping plate 73 contacts the outer arc surface of the punch 6, thereby realizing the installation and fixation of the punch 6. In the subsequent use of the plastic film cutting device, the plastic film to be cut is moved to the bottom by an external traction device. At the upper end of seat 1, the electric push rod 4 starts to run through the control switch 14. The telescopic end of the electric push rod 4 extends, causing the electric push rod 4 to drive the punch 6 and pressure plate 9 downward through the mounting box 5. The top rod 11 gradually separates from the punch 6. The pressure plate 9 will first contact the upper surface of the plastic film, which will cause the slide column 8 to slide upward and the spring 10 to contract, thereby fixing the plastic film. Then the punch 6 passes through the plastic film and extends into the interior of the clearance groove 13, thereby realizing the hole cutting work of the plastic film. Then, through the control switch 14, the electric push rod 4 starts to run, and the telescopic end of the electric push rod 4 contracts, causing the electric push rod 4 to drive the punch 6 and pressure plate 9 upward through the mounting box 5. The punch 6 and pressure plate 9 will gradually separate from the plastic film. The top rod 11 will also re-insert into the interior of the punch 6. Finally, the remaining plastic film fragments inside the punch 6 will be pushed out, and the thrust generated by the extension of the spring 10 will drive the pressure plate 9 to move downward and reset.

[0029] It is worth noting that the electric push rod 4 disclosed in the above embodiments can be YRJ0905, and the control switch 14 is provided with a control button corresponding to the electric push rod 4 for controlling its switch.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plastic film cutting device, comprising a base (1), a relief groove (13) provided in the middle of the upper end of the base (1), a mounting box (5) provided at the upper end of the base (1), a punch (6) placed in a mounting groove opened on the front side of the lower end of the mounting box (5), the punch (6) corresponding vertically to the relief groove (13), characterized in that: It also includes fixed mechanisms (7); Fixing mechanism (7): It includes a fixing rod (71), a connecting plate (72) and a clamping plate (73). The fixing rod (71) is located on the rear side inside the mounting box (5). The left and right sides of the outer arc surface of the fixing rod (71) are slidably connected to the connecting plate (72). The connecting plate (72) is slidably connected to the bottom wall of the mounting box (5). The front end of the connecting plate (72) is provided with a clamping plate (73). The inner surface of the clamping plate (73) is in contact with the outer arc surface of the punch (6).

2. The plastic film perforation device according to claim 1, characterized in that: It also includes a control switch (14), which is located outside the base (1) and whose input terminal is electrically connected to an external power source.

3. The plastic film cutting device according to claim 1, characterized in that: The fixing mechanism (7) also includes an adjusting plate (74), a vertical rod (75), a mounting base (76), a screw (77), and an adjusting knob (78). The adjusting plate (74) is slidably connected to the inner wall of the mounting box (5). Adjusting grooves are provided on both the left and right sides of the upper end of the adjusting plate (74). The vertical rods (75) are all located on the rear side of the upper end of the connecting plate (72). The upper side of the vertical rods (75) is located inside the vertically adjacent adjusting grooves. The mounting base (76) is provided in the middle of the lower end of the adjusting plate (74). The screw (77) is rotatably connected to the middle of the rear wall of the mounting box (5). The mounting base (76) is threaded to the middle of the outer arc surface of the screw (77) through the threaded hole provided in the middle of its front end. The adjusting knob (78) is provided at the rear end of the screw (77).

4. The plastic film cutting device according to claim 2, characterized in that: Support rods (2) are respectively provided at the four corners of the upper end of the base (1). The upper ends of the support rods (2) are fixedly connected to the lower end of the mounting plate (3). An electric push rod (4) is provided on the rear side of the lower end of the mounting plate (3). The lower end of the telescopic end of the electric push rod (4) is fixedly connected to the upper end of the mounting box (5). The input end of the electric push rod (4) is electrically connected to the output end of the control switch (14).

5. A plastic film perforation device according to claim 4, characterized in that: A top rod (11) is provided in the middle of the top wall of the mounting plate (3), and the lower side of the top rod (11) is located inside the punch (6).

6. The plastic film perforation device according to claim 1, characterized in that: Sliding pins (8) are slidably connected in the sliding holes provided on the front side of the lower end of the mounting box (5). Each sliding pin (8) has a baffle at its upper end. The sliding pins (8) are located on the front and rear sides of the outer arc surface of the punch (6). The lower ends of the sliding pins (8) are fixedly connected to the upper ends of the pressure plate (9). Springs (10) are provided between the lower end of the mounting box (5) and the upper end of the pressure plate (9). The springs (10) are all sleeved on the outside of the lower side of the sliding pins (8).

7. The plastic film perforation device according to claim 1, characterized in that: A limiting plate (12) is provided on the lower side of the front wall of the mounting box (5), and the lower end of the limiting plate (12) contacts the upper end of the punch (6).

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