Device capable of slitting plastic packaging film at fixed point

Abstract

The utility model belongs to the field of plastic packaging films, particularly relates to a device capable of slitting a plastic packaging film at a fixed point, and provides the following scheme aiming at the problem that the plastic packaging film is easy to move to generate wrinkles due to the absence of a fixing structure in the prior art. The conveying opening is formed in a fixing frame on the right side of the supporting frame, and the fixing frame is connected to the bottom of the left end of the inner side of the supporting frame through bolts; the number of the sliding rollers is two, and the two ends of the two sliding rollers are rotationally connected to the groove in the top of the fixing frame; the cutting opening type frame is slidably connected to the top of the left end of the inner side of the supporting frame, the plastic packaging film can be fixed to the sliding rollers of the fixing frame through the cutting opening type frame, and then fixed-point cutting is conducted through the plastic packaging film fixed-point cutting knife. And the plastic packaging film is not easily driven by the plastic packaging film fixed-point slitting knife in the cutting process, so that the cut of the plastic packaging film is prevented from generating wrinkles.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic packaging films, in particular to a device for fixed-point cutting of plastic packaging films. Background Art

[0002] During the production and use of plastic packaging films, a fixed-point cutting structure is required for cutting. The Chinese patent document with the publication number CN220409006U discloses a shearing device for plastic packaging films that can be applicable to various sizes.

[0003] However, when the above technical solution is used for cutting, there is no structure around the cutting tool to fix the plastic packaging film. As a result, when the cutting tool moves for cutting, the plastic packaging film is easily driven by the cutting tool to shift, resulting in wrinkles at the cut. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defect in the prior art that there is no fixing structure, resulting in easy movement and wrinkles of the plastic packaging film, and to propose a device for fixed-point cutting of plastic packaging films.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for fixed-point cutting of plastic packaging films, comprising

[0007] A support frame;

[0008] A conveying port, which is opened on the right side of the support frame

[0009] A fixing frame, which is bolted to the bottom of the left end inside the support frame;

[0010] Two sliding rollers, both ends of which are rotatably connected to the grooves at the top of the fixing frame;

[0011] A cutting notch-shaped frame, which is slidably connected to the top of the left end inside the support frame;

[0012] An electric push rod, which is bolted to the top of the cutting notch-shaped frame;

[0013] A plastic packaging film fixed-point cutting knife, which is bolted to the output end of the electric push rod;

[0014] A lifting assembly, which includes a rotating shaft and two transmission gears. The two ends of the surface of the rotating shaft are respectively key-connected to the centers of the two transmission gears, and the teeth of the transmission gears are meshed with the teeth on the right side of the cutting notch-shaped frame;

[0015] A conveying mechanism, which is connected to the cutting notch-shaped frame;

[0016] Lifting mechanism, the lifting mechanism is connected to the rotating shaft. The lifting mechanism is used to drive the cutting die frame to lift and lower. Through structural transmission, the cutting die frame can be driven to move downward. The plastic packaging film can be fixed on the sliding roller of the fixed frame by using the cutting die frame. Then, the plastic packaging film is fixed-point cut by the fixed-point cutting knife of the plastic packaging film. Since the plastic packaging film is fixed, it is not easily driven by the fixed-point cutting knife of the plastic packaging film during the cutting process, avoiding wrinkles in the cut of the plastic packaging film.

[0017] As a preferred solution of the present utility model, the conveying mechanism includes a connecting seat, a servo motor and a conveying roller. The left side of the connecting seat is bolted to the right side of the support frame. There are two servo motors and two conveying rollers. The output end of the servo motor is key-connected to the axis of the conveying roller. After the power supply of the servo motor is turned on, the servo motor is controlled by a servo system. The servo motor can drive the conveying roller to rotate. The two conveying rollers rotate in opposite directions and can convey the plastic packaging film.

[0018] As a preferred solution of the present utility model, the surface of the servo motor is bolted to the side of the connecting seat. Both ends of the conveying roller are rotatably connected to the inner side of the connecting seat. The servo motor is fixed by the connecting seat to ensure the stability of the servo motor. The conveying roller is rotatably arranged on the connecting seat through a bearing.

[0019] As a preferred solution of the present utility model, the lifting mechanism includes an electric telescopic rod, a hinged rod and a transmission frame. The surface of the electric telescopic rod is bolted to the side of the support frame. The output end of the electric telescopic rod is hinged to the right end of the hinged rod. The left end of the hinged rod is hinged to the bottom end of the transmission frame. The hole of the transmission frame is key-connected to one end of the rotating shaft. After the power supply of the electric telescopic rod is turned on, the electric telescopic rod is fixed by the support frame to ensure the stability of the electric telescopic rod. The electric telescopic rod can drive the hinged rod to move. The hinged rod can drive the transmission frame to rotate. The transmission frame can drive the rotating shaft to rotate.

[0020] As a preferred solution of the present utility model, the cutting die frame is located at the top of the fixed frame. The two sliding rollers respectively correspond to the two ends of the bottom of the cutting die frame. The alignment of the cutting die frame and the fixed frame can use the cutting die frame to clamp and fix the packaging film downward. The two sides of the bottom of the cutting die frame are clamped downward on the sliding roller to fix the packaging film.

[0021] As a preferred solution of the present utility model, both ends of the rotating shaft are rotatably sleeved on the inner side of the support frame. The right end of the rotating shaft extends to the right side of the support frame. The rotating shaft is rotatably arranged on the support frame through a bearing to ensure the smooth rotation of the rotating shaft.

[0022] Beneficial effects:

[0023] 1. The lifting mechanism can drive the rotation of the rotating shaft. The rotating shaft can drive the rotation of the transmission gear. The transmission gear can drive the cutting die frame to move downward. The cutting die frame can move downward to cooperate with the sliding rollers of the fixed frame to fix the plastic packaging film.

[0024] 2. The electric push rod can drive the fixed-point cutting knife of the plastic packaging film to move downward. The fixed-point cutting knife of the plastic packaging film can move downward to perform fixed-point cutting on the fixed plastic packaging film.

[0025] In the present utility model: Through the structural transmission, the cutting die frame can be driven to move downward. The cutting die frame can be used to fix the plastic packaging film on the sliding rollers of the fixed frame. Then, the fixed-point cutting knife of the plastic packaging film is used for fixed-point cutting. Since the plastic packaging film is fixed, it is not easily driven by the fixed-point cutting knife of the plastic packaging film during the cutting process, avoiding wrinkles in the cut of the plastic packaging film. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the overall three-dimensional view of the present utility model;

[0027] Figure 2 is the three-dimensional view of the transmission gear of the present utility model;

[0028] Figure 3 is the three-dimensional view of the cutting die frame of the present utility model;

[0029] Figure 4 is the three-dimensional view of the support frame of the present utility model.

[0030] In the figure: 1. Support frame; 2. Fixed frame; 3. Sliding roller; 4. Cutting die frame; 5. Electric push rod; 6. Fixed-point cutting knife of plastic packaging film; 7. Electric telescopic rod; 8. Hinge rod; 9. Transmission frame; 10. Rotating shaft; 11. Transmission gear; 12. Connecting seat; 13. Servo motor; 14. Conveyor roller; 15. Conveyor opening. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] 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 of the embodiments.

[0032] Embodiment 1

[0033] Refer to Figures 1-4 , a device for fixed-point cutting of plastic packaging film, including

[0034] Support frame 1;

[0035] Conveyor opening 15, the conveyor opening 15 is opened on the right side of the support frame 1

[0036] Fixing bracket 2, the fixing bracket 2 is bolted to the bottom of the inner left end of the support bracket 1;

[0037] Sliding rollers 3, there are two sliding rollers 3, and both ends of the two sliding rollers 3 are rotatably connected to the grooves at the top of the fixing bracket 2;

[0038] Split notch type frame 4, the split notch type frame 4 is slidably connected to the top of the inner left end of the support bracket 1;

[0039] Electric push rod 5, the electric push rod 5 is bolted to the top of the split notch type frame 4;

[0040] Plastic packaging film fixed-point cutting knife 6, the plastic packaging film fixed-point cutting knife 6 is bolted to the output end of the electric push rod 5;

[0041] Lifting assembly, the lifting assembly includes a rotating shaft 10 and transmission gears 11, there are two transmission gears 11, both ends of the surface of the rotating shaft 10 are key-connected to the axles of the two transmission gears 11 respectively, and the teeth of the transmission gears 11 are meshed with the teeth on the right side of the split notch type frame 4;

[0042] Conveying mechanism, the conveying mechanism is connected to the split notch type frame 4;

[0043] Lifting mechanism, the lifting mechanism is connected to the rotating shaft 10, and the lifting mechanism is used to drive the split notch type frame 4 to lift and lower.

[0044] With the above structure: Through structural transmission, the split notch type frame 4 can be driven to move downward. The plastic packaging film can be fixed on the sliding rollers 3 of the fixing bracket 2 by using the split notch type frame 4, and then the plastic packaging film fixed-point cutting knife 6 is used for fixed-point cutting. Since the plastic packaging film is fixed, the plastic packaging film is not easily driven by the plastic packaging film fixed-point cutting knife 6 during the cutting process, avoiding wrinkles in the cut of the plastic packaging film.

[0045] Please refer to Figure 1 , the conveying mechanism includes a connecting seat 12, a servo motor 13 and conveying rollers 14. The left side of the connecting seat 12 is bolted to the right side of the support bracket 1. There are two servo motors 13 and two conveying rollers 14. The output end of the servo motor 13 is key-connected to the axle of the conveying roller 14. After turning on the power of the servo motor 13, the servo motor 13 is controlled by a servo system. The servo motor 13 can drive the conveying rollers 14 to rotate. The two conveying rollers 14 rotate in opposite directions and can convey the plastic packaging film.

[0046] Please refer to Figure 4 , the surface of the servo motor 13 is bolted to the side of the connecting seat 12. Both ends of the conveying roller 14 are rotatably connected to the inside of the connecting seat 12. The servo motor 13 is fixed by the connecting seat 12 to ensure the stability of the servo motor 13. The conveying roller 14 is rotatably arranged on the connecting seat 12 through bearings.

[0047] Please refer to Figure 2 As shown in Figure 2 , the lifting mechanism includes an electric telescopic rod 7, a hinged rod 8 and a transmission frame 9. The surface of the electric telescopic rod 7 is bolted to the side of the support frame 1. The output end of the electric telescopic rod 7 is hinged to the right end of the hinged rod 8. The left end of the hinged rod 8 is hinged to the bottom end of the transmission frame 9. The hole of the transmission frame 9 is key-connected to one end of the rotating shaft 10. When the power of the electric telescopic rod 7 is turned on, the electric telescopic rod 7 is fixed by the support frame 1 to ensure the stability of the electric telescopic rod 7. The electric telescopic rod 7 can drive the hinged rod 8 to move, the hinged rod 8 can drive the transmission frame 9 to rotate, and the transmission frame 9 can drive the rotating shaft 10 to rotate.

[0048] Please refer to Figure 1 As shown in Figure 1 , the split-notch type frame 4 is located at the top of the fixed frame 2. The two sliding rollers 3 correspond to the two ends of the bottom of the split-notch type frame 4 respectively. The alignment of the split-notch type frame 4 and the fixed frame 2 can be used to clamp and fix the packaging film downward by the split-notch type frame 4. The two sides of the bottom of the split-notch type frame 4 are clamped downward on the sliding rollers 3 to fix the packaging film.

[0049] Please refer to Figure 3 As shown in Figure 3 , both ends of the rotating shaft 10 are rotatably sleeved on the inner side of the support frame 1. The right end of the rotating shaft 10 extends to the right side of the support frame 1. The rotating shaft 10 is rotatably arranged on the support frame 1 through a bearing to ensure the smooth rotation of the rotating shaft 10.

[0050] Embodiment 2

[0051] The difference between this embodiment and Embodiment 1 is that the hinged rod 8 is replaced by a slide bar and a sliding frame hinged on the surface of the slide bar. The electric telescopic rod 7 can drive the slide bar to move, the slide bar can drive the sliding frame to move, and the sliding frame can slide on the surface of the transmission frame 9 and drive the transmission frame 9 to rotate, which is convenient for the transmission of the structure. Therefore, the hinged rod 8 is preferably used in this application.

[0052] It should be noted that: the specific models of the electric push rod 5, the electric telescopic rod 7 and the servo motor 13 are selected by those skilled in the relevant art. The above-mentioned electric push rod 5, electric telescopic rod 7 and servo motor 13 and the like all belong to the prior art, and this solution will not be elaborated.

[0053] Working principle of the present utility model: Pass the plastic packaging film through the conveying opening 15 of the support frame 1, connect the power supply of the servo motor 13, the servo motor 13 is controlled by a servo system, the servo motor 13 can drive the conveying roller 14 to rotate, the two conveying rollers 14 rotate in opposite directions, and can convey the plastic packaging film. Connect the power supply of the electric telescopic rod 7, the electric telescopic rod 7 is fixed by the support frame 1 to ensure the stability of the electric telescopic rod 7. The electric telescopic rod 7 can drive the articulated rod 8 to move, the articulated rod 8 can drive the transmission frame 9 to rotate, the transmission frame 9 can drive the rotating shaft 10 to rotate, the rotating shaft 10 can drive the transmission gear 11 to rotate, the transmission gear 11 can drive the split cutting die frame 4 to move downward. The split cutting die frame 4 is slidably arranged on the support frame 1 through a slide rail, and the split cutting die frame 4 moves downward to cooperate with the sliding roller 3 of the fixed frame 2 to fix the plastic packaging film. Connect the power supply of the electric push rod 5, the electric push rod 5 can drive the fixed-point cutting knife 6 of the plastic packaging film to move downward to perform fixed-point cutting on the plastic packaging film. The split cutting die frame 4 can fix the plastic packaging film on the sliding roller 3 of the fixed frame 2, and then use the fixed-point cutting knife 6 of the plastic packaging film to perform fixed-point cutting. Since the plastic packaging film is fixed, the plastic packaging film is not easily driven by the fixed-point cutting knife 6 of the plastic packaging film during the cutting process, avoiding wrinkles at the cut of the plastic packaging film.

[0054] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An apparatus for fixedly cutting a plastic packaging film, characterized in that, including a support frame (1); a conveying port (15), the conveying port (15) is opened on the right side of the support frame (1) a fixing frame (2), the fixing frame (2) is bolted to the bottom of the inner left end of the support frame (1); sliding rollers (3), there are two sliding rollers (3), and both ends of the two sliding rollers (3) are rotatably connected to the grooves at the top of the fixing frame (2); a split-notch type frame (4), the split-notch type frame (4) is slidably connected to the top of the inner left end of the support frame (1); an electric push rod (5), the electric push rod (5) is bolted to the top of the split-notch type frame (4); a plastic packaging film fixed-point cutting knife (6), the plastic packaging film fixed-point cutting knife (6) is bolted to the output end of the electric push rod (5); a lifting assembly, the lifting assembly includes a rotating shaft (10) and transmission gears (11), there are two transmission gears (11), and both ends of the surface of the rotating shaft (10) are key-connected to the axles of the two transmission gears (11), and the teeth of the transmission gears (11) are engaged with the teeth on the right side of the split-notch type frame (4); a conveying mechanism, the conveying mechanism is connected to the split-notch type frame (4); a lifting mechanism, the lifting mechanism is connected to the rotating shaft (10), and the lifting mechanism is used to drive the split-notch type frame (4) to lift and lower.

2. The device for cutting a plastic packaging film at a fixed point according to claim 1, characterized in that, The conveying mechanism includes a connecting seat (12), a servo motor (13) and conveying rollers (14), the left side of the connecting seat (12) is bolted to the right side of the support frame (1), there are two servo motors (13) and two conveying rollers (14), and the output end of the servo motor (13) is key-connected to the axle of the conveying roller (14).

3. The device for point-by-point cutting of plastic packaging film according to claim 2, characterized in that, The surface of the servo motor (13) is bolted to the side of the connecting seat (12), and both ends of the conveying roller (14) are rotatably connected to the inside of the connecting seat (12).

4. A device for cutting a plastic packaging film at a fixed point according to claim 1, characterized in that, The lifting mechanism includes an electric telescopic rod (7), a hinged rod (8) and a transmission frame (9), the surface of the electric telescopic rod (7) is bolted to the side of the support frame (1), the output end of the electric telescopic rod (7) is hinged to the right end of the hinged rod (8), the left end of the hinged rod (8) is hinged to the bottom end of the transmission frame (9), and the hole of the transmission frame (9) is key-connected to one end of the rotating shaft (10).

5. The device for cutting plastic packaging film at a fixed point according to claim 1, characterized in that, The split-notch type frame (4) is located on the top of the fixing frame (2), and the two sliding rollers (3) respectively correspond to both ends of the bottom of the split-notch type frame (4).

6. The device for point-by-point cutting of plastic packaging film according to claim 1, characterized in that, Both ends of the rotating shaft (10) are rotatably sleeved on the inside of the support frame (1), and the right end of the rotating shaft (10) extends to the right side of the support frame (1).

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