Cutting device for polypropylene film production

Abstract

The utility model relates to the technical field of film cutting, and discloses a cutting device for polypropylene film production, which comprises a working table, a cutting mechanism is arranged at the top of the working table, a transmission mechanism is arranged outside the working table, the cutting mechanism comprises a cutting frame, a first motor is fixedly connected outside the cutting frame, and a second motor is fixedly connected outside the first motor. An adjusting shell is installed at one end of the first motor, a cutting assembly is arranged in the adjusting shell, a preheating shell is fixedly connected to the outer portion of the adjusting shell, a first electric telescopic rod is fixedly connected to the interior of the preheating shell, a preheating plate is fixedly connected to one end of the first electric telescopic rod, and the cutting assembly comprises two air cylinders. According to the cutting device for polypropylene film production, different cutting knives are adjusted to correspond to different polypropylene films through the cutting mechanism, so that the operation of conveniently adjusting the cutting knives is completed, and the effect of improving the cutting efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, in particular to a cutting device for polypropylene film production. Background Art

[0002] Polypropylene, referred to as PP, is a semi-crystalline thermoplastic. It has high impact resistance, strong mechanical properties, and resistance to a variety of organic solvents and acid and alkali corrosion. It is widely used in the industry and is one of the most common polymer materials. The film has good physical stability, mechanical strength, and air tightness, high transparency and gloss, and is tough and wear-resistant. The main disadvantage of polypropylene film is its poor heat sealing property, so it is generally used as the outer film of composite film. For example, after being composited with polyethylene film, it has ideal moisture resistance, transparency, strength, stiffness, and printability, and is suitable for holding dry food.

[0003] According to a device for cutting anti-interference metallized polypropylene film disclosed in Chinese patent publication number CN 220516981 U, the device includes a workbench, a material receiving frame, and a cutting part arranged on the workbench, the workbench is provided with a feed roller group and a material receiving plate, the cutting part is located between the feed roller group and the material receiving plate, a clearance cavity is provided on the workbench, the material receiving plate is rotatably connected to the clearance cavity, and a power part for driving the material receiving plate to rotate is installed on the workbench, when the material receiving plate rotates downward, the product on the material receiving plate can fall into the material receiving frame. The application can reduce the labor intensity of the staff.

[0004] However, when the device is in use, the blade is fixed and is not convenient to adjust and replace according to the polypropylene film, so that the device has certain limitations. Utility Model Content

[0005] The utility model aims to provide a cutting device for polypropylene film production, so as to solve the problem in the background art that the blade of the device is fixed and cannot be adjusted and replaced according to the polypropylene film, which makes the device have certain limitations.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: A cutting device for polypropylene film production, comprising a workbench, a cutting mechanism is arranged on the top of the workbench, and a transmission mechanism is arranged outside the workbench;

[0007] The cutting mechanism includes a cutting frame, the outside of the cutting frame is fixedly connected to a first motor, one end of the first motor is installed with an adjusting shell, the interior of the adjusting shell is provided with a cutting assembly, the outside of the adjusting shell is fixedly connected to a preheating shell, the interior of the preheating shell is fixedly connected to a first electric telescopic rod, and one end of the first electric telescopic rod is fixedly connected to a preheating plate.

[0008] Preferably, the cutting assembly comprises two cylinders, and one end of the two cylinders is respectively fixedly connected with a cutting knife and a pressing plate.

[0009] Preferably, the two cylinders are fixedly connected to the cutting frame and the inner side of the adjusting shell respectively, and the length of the pressing plate is consistent with the length of the inner side of the cutting frame.

[0010] Preferably, the cutting frame is fixedly connected to the top of the workbench, and an electric heating wire is installed on the inner side of the preheating plate.

[0011] Preferably, the transmission mechanism includes a placing rack, a pressure rack, a conveying rack and an adjusting rack, a placing roller is installed on the inner side of the placing rack, two pressure rollers are installed on the inner side of the pressure rack, two conveying rollers are installed on the inner side of the conveying rack, a groove is opened on the inner side of the adjusting rack, a second electric telescopic rod is fixedly connected to the inner side of the groove, an adjusting block is fixedly connected to the bottom of the second electric telescopic rod, and an adjusting roller is rotatably connected to the inner side of the adjusting block.

[0012] Preferably, the placement rack, pressure rack, conveying rack and adjustment rack are all arranged on the left side of the workbench, and the adjustment rack is arranged between the pressure rack and the conveying rack.

[0013] Preferably, a second motor is installed outside the pressure roller and the conveying roller, and one end of the second motor is fixedly connected to one end of the pressure frame and the conveying frame.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0015] First, the utility model transmits the polypropylene film to the cutting frame through the transmission mechanism, and then pushes the preheating plate to move toward the two ends of the cutting knife by starting the first electric telescopic rod until the two preheating plates are in contact with the two sides of the cutting knife, and then starts to heat the cutting knife through the electric heating wire in the preheating plate, so that the preheated cutting knife reduces the cutting resistance and has a better cutting effect, and then drives the pressing plate to descend by starting the cylinder, so that the pressing plate is pressed on the polypropylene film, and then the cutting knife is lowered by the cylinder at the cutting knife to cut the polypropylene film, and according to the needs of the polypropylene film, a variety of cutting knives are installed in the adjusting shell in advance, and then the adjusting shell is driven to rotate by starting the first motor, and then the cutting knife outside the adjusting shell is driven to rotate, so that different cutting knives are adjusted to correspond to different polypropylene films, thereby completing the operation of conveniently adjusting the tool and achieving the effect of improving the cutting efficiency.

[0016] Secondly, the utility model installs the polypropylene film roll on the placement roller at the placement rack, and then passes one end of the polypropylene film through the middle of two pressure rollers, the bottom of the adjustment roller and the middle of two conveying rollers, and then starts the second electric telescopic rod to push the adjustment block to move up and down, so as to adjust the position of the adjustment roller, and then adjust the pressure of the polypropylene film during transmission, and then starts the second motor outside the pressure roller and the conveying roller to drive the pressure roller and the conveying roller to rotate, so as to drive the polypropylene film to move toward the cutting rack, thereby completing the operation of transmitting the polypropylene film and achieving the effect of facilitating the adjustment of pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the adjustment frame of the utility model;

[0019] Figure 3 This is a cross-sectional view of the regulating shell of the utility model;

[0020] Figure 4 This is a cross-sectional view of the adjusting frame of the utility model.

[0021] Wherein: 1. workbench; 2. cutting mechanism; 3. transmission mechanism; 21. cutting frame; 22. first motor; 23. adjusting shell; 24. cutting assembly; 25. preheating shell; 26. first electric telescopic rod; 27. preheating plate; 28. cylinder; 29. ​​cutting knife; 201. pressing plate; 31. placing frame; 32. pressure frame; 33. conveying frame; 34. adjusting frame; 35. placing roller; 36. pressure roller; 37. conveying roller; 38. second electric telescopic rod; 39. adjusting block; 301. adjusting roller. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides the following technical solutions:

[0024] Embodiment 1

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4, a cutting device for polypropylene film production, comprising a workbench 1, a cutting mechanism 2 is arranged on the top of the workbench 1, and a transmission mechanism 3 is arranged outside the workbench 1;

[0026] The cutting mechanism 2 includes a cutting frame 21, the outside of the cutting frame 21 is fixedly connected to a first motor 22, one end of the first motor 22 is installed with an adjusting shell 23, the inside of the adjusting shell 23 is provided with a cutting assembly 24, the outside of the adjusting shell 23 is fixedly connected to a preheating shell 25, the inside of the preheating shell 25 is fixedly connected to a first electric telescopic rod 26, and one end of the first electric telescopic rod 26 is fixedly connected to a preheating plate 27.

[0027] The cutting assembly 24 includes two cylinders 28 , and one end of the two cylinders 28 is fixedly connected to a cutting knife 29 and a pressing plate 201 , respectively.

[0028] The two cylinders 28 are fixedly connected to the cutting frame 21 and the inner side of the adjusting shell 23 , respectively. The length of the pressing plate 201 is consistent with the length of the inner side of the cutting frame 21 .

[0029] The cutting frame 21 is fixedly connected to the top of the workbench 1 , and an electric heating wire is installed on the inner side of the preheating plate 27 .

[0030] Through the above technical solution, the polypropylene film is transmitted to the cutting frame 21 through the transmission mechanism 3, and then the preheating plate 27 is pushed to move toward the two ends of the cutting knife 29 by starting the first electric telescopic rod 26 until the two preheating plates 27 are in contact with the two sides of the cutting knife 29, and then the electric heating wire in the preheating plate 27 starts to heat and preheat the cutting knife 29, so that the preheated cutting knife 29 reduces the cutting resistance and achieves a better cutting effect, and then the pressure plate 201 is driven to descend by starting the cylinder 28, so that the pressure plate 201 is pressed on the polypropylene film, and then the cutting knife 29 is lowered by the cylinder 28 at the cutting knife 29 to cut the polypropylene film. According to the needs of the polypropylene film, a variety of cutting knives 29 are installed at the adjusting shell 23 in advance, and then the adjusting shell 23 is driven to rotate by starting the first motor 22, and then the cutting knife 29 outside the adjusting shell 23 is driven to rotate, so that different cutting knives 29 are adjusted to correspond to different polypropylene films, thereby completing the operation of conveniently adjusting the tool and achieving the effect of improving the cutting efficiency.

[0031] Embodiment 2

[0032] See also Figure 1 , Figure 2 , Figure 3 , Figure 4, and on the basis of Example 1, it is further obtained that: the transmission mechanism 3 includes a placement frame 31, a pressure frame 32, a conveying frame 33 and an adjustment frame 34, a placement roller 35 is installed on the inner side of the placement frame 31, two pressure rollers 36 are installed on the inner side of the pressure frame 32, two conveying rollers 37 are installed on the inner side of the conveying frame 33, a groove is opened on the inner side of the adjustment frame 34, a second electric telescopic rod 38 is fixedly connected to the inner side of the groove, an adjustment block 39 is fixedly connected to the bottom of the second electric telescopic rod 38, and an adjustment roller 301 is rotatably connected to the inner side of the adjustment block 39.

[0033] The placement rack 31 , the pressure rack 32 , the conveying rack 33 and the adjustment rack 34 are all arranged on the left side of the workbench 1 , and the adjustment rack 34 is arranged between the pressure rack 32 and the conveying rack 33 .

[0034] A second motor is installed outside the pressure roller 36 and the conveying roller 37 , and one end of the second motor is fixedly connected to one end of the pressure frame 32 and the conveying frame 33 .

[0035] Through the above technical solution, at this time, the polypropylene film roll is installed on the placement roller 35 at the placement frame 31, and then one end of the polypropylene film is passed through the middle of the two pressure rollers 36, the bottom of the adjustment roller 301 and the middle of the two conveying rollers 37, and then the second electric telescopic rod 38 is started to push the adjustment block 39 to rise and fall, so as to adjust the position of the adjustment roller 301, and then adjust the pressure during the transmission of the polypropylene film, and then the second motor outside the pressure roller 36 and the conveying roller 37 is started to drive the pressure roller 36 and the conveying roller 37 to rotate, thereby driving the polypropylene film to move toward the cutting frame 21, thereby completing the operation of transmitting the polypropylene film and achieving the effect of facilitating the adjustment of pressure.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing polypropylene film, comprising a workbench (1), characterized in that: A cutting mechanism (2) is arranged on the top of the workbench (1), and a transmission mechanism (3) is arranged outside the workbench (1); The cutting mechanism (2) comprises a cutting frame (21), the outside of the cutting frame (21) is fixedly connected to a first motor (22), one end of the first motor (22) is mounted with an adjusting shell (23), a cutting assembly (24) is arranged inside the adjusting shell (23), the outside of the adjusting shell (23) is fixedly connected to a preheating shell (25), the inside of the preheating shell (25) is fixedly connected to a first electric telescopic rod (26), and one end of the first electric telescopic rod (26) is fixedly connected to a preheating plate (27).

2. A cutting device for polypropylene film production according to claim 1, characterized in that: The cutting assembly (24) comprises two cylinders (28), and one end of the two cylinders (28) is respectively fixedly connected with a cutting knife (29) and a pressing plate (201).

3. A cutting device for polypropylene film production according to claim 2, characterized in that: The two cylinders (28) are respectively fixedly connected to the inner sides of the cutting frame (21) and the adjusting shell (23), and the length of the pressing plate (201) is consistent with the length of the inner side of the cutting frame (21).

4. A cutting device for polypropylene film production according to claim 1, characterized in that: The cutting frame (21) is fixedly connected to the top of the workbench (1), and an electric heating wire is installed on the inner side of the preheating plate (27).

5. A cutting device for producing polypropylene film according to claim 1, characterized in that: The transmission mechanism (3) comprises a placing frame (31), a pressure frame (32), a conveying frame (33) and an adjusting frame (34); a placing roller (35) is installed on the inner side of the placing frame (31); two pressure rollers (36) are installed on the inner side of the pressure frame (32); two conveying rollers (37) are installed on the inner side of the conveying frame (33); a groove is provided on the inner side of the adjusting frame (34); a second electric telescopic rod (38) is fixedly connected to the inner side of the groove; an adjusting block (39) is fixedly connected to the bottom of the second electric telescopic rod (38); an adjusting roller (301) is rotatably connected to the inner side of the adjusting block (39).

6. A cutting device for producing polypropylene film according to claim 5, characterized in that: The placement rack (31), the pressure rack (32), the conveying rack (33) and the adjustment rack (34) are all arranged on the left side of the workbench (1), and the adjustment rack (34) is arranged between the pressure rack (32) and the conveying rack (33).

7. A cutting device for producing polypropylene film according to claim 5, characterized in that: A second motor is installed outside the pressure roller (36) and the conveying roller (37), and one end of the second motor is fixedly connected to one end of the pressure frame (32) and the conveying frame (33).

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