Edge cutting device for thin film

Abstract

The utility model provides an edge cutting device for a thin film, and aims to solve the technical problem that a structure for cutting the edge of the thin film is embedded in other devices and is difficult to independently use. The edge cutting device comprises a base frame; the two ends of the guide roller are rotationally arranged on the two sides of the base frame respectively, and one end of the guide roller is connected with a power assembly; the stepping motor is arranged on the base frame, and an output shaft of the stepping motor is parallel to the guide roller; the side part of one end of the support frame is connected with an output shaft of the stepping motor, and the other side of the end is rotationally arranged on the base frame; the driving motor is arranged on the supporting frame, the driving motor and the stepping motor are located at the two ends of the supporting frame respectively, and an output shaft of the driving motor is parallel to an output shaft of the stepping motor; and the blade is rotationally arranged on an output shaft of the driving motor, and a cutting edge of the blade can be in contact with the surface of the guide roller. The edge cutting device has the advantage of being capable of being used independently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of cutting device of film, specifically to a kind of edge cutting device of film. BACKGROUND

[0002] There are many ways to manufacture film, such as blown film, cast film, drawn film, and extruded film. In the production process of film, the edges of the film may be uneven, so the edges need to be cut to make the edges of the film straight and have a certain width.

[0003] Currently, the structure for cutting the edges of the film is generally combined with other devices, which cannot be used alone. UTILITY MODEL CONTENT

[0004] To solve the technical problem that the structure for cutting the edges of the film is embedded in other devices and cannot be used alone, the utility model provides an edge cutting device for film, which can be used alone.

[0005] The technical solution of the utility model is:

[0006] An edge cutting device for film includes:

[0007] a base frame;

[0008] a guide roller, both ends of which are rotatably arranged on both sides of the base frame, and one end of the guide roller is connected with a power assembly;

[0009] a stepper motor, which is arranged on the base frame, and the output shaft of the stepper motor is parallel to the guide roller;

[0010] a support frame, one end of which is connected with the output shaft of the stepper motor, and the other end of this end is rotatably arranged on the base frame;

[0011] a drive motor, which is arranged on the support frame and located at both ends of the support frame with the stepper motor, and the output shaft of the drive motor is parallel to the output shaft of the stepper motor;

[0012] a blade, which is rotatably arranged on the output shaft of the drive motor, and the cutting edge of the blade can be in contact with the surface of the guide roller.

[0013] Optionally, the blade is close to one end of the guide roller.

[0014] Optionally, a pressure roller is arranged on the end of the guide roller away from the blade.

[0015] Optionally, a groove is arranged on one end of the guide roller, and the cutting edge of the blade can be placed in the groove.

[0016] Optionally, the two sides of the groove are provided with a circular arc chamfer.

[0017] Optionally, the support frame is further rotatably provided with two pressing wheels, and the two pressing wheels are located at the two sides of the blade.

[0018] Optionally, the covering area of the film on the guide roller is greater than or equal to 15% of the outer circumferential surface of the guide roller.

[0019] Optionally, the base frame is further provided with a pressing roller, the pressing roller is located at the side of the guide roller, the pressing roller is parallel to the guide roller, and the surface of the pressing roller is in contact with the surface of the guide roller.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] By setting a base frame, the guide roller is rotatably arranged on the base frame, and the rotation of the guide roller is driven by the power assembly. Then the film to be trimmed is placed on the surface of the guide roller, and under the driving of other traction equipment, the film slides on the guide roller, then the support frame is driven to rotate by the stepping motor, the blade is driven to descend by the support frame, the cutting edge of the blade is in contact with the film, and the blade is continuously driven to rotate by the driving motor, so that the trimming of the film edge is realized.

[0022] The technical scheme has simple structure, is convenient for production and manufacturing, and is very suitable for independent use. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, without creative labor, other drawings can also be obtained from these drawings.

[0024] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0025] Figure 2 It is an enlarged schematic view of the structure of one end of the guide roller. DETAILED DESCRIPTION

[0026] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0027] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the sake of simplicity, the description below refers to specific examples in which features can be present in some embodiments but not in others, which are disclosed as discrete combinations within separate examples. Such examples, however, are not discrete. Indeed, the different features of the different embodiments can be present together in a single embodiment and the same or similar features can be arranged in different examples. Furthermore, specific examples can be described in different contexts. Such descriptions are not intended to be limiting. Furthermore, the present application can be used in different examples with the same or similar components and / or with other components. Moreover, other structures, systems, materials, and / or methods similar to or equivalent to those described herein can be used in the practice of the present application.

[0028] The embodiments of the present application will be described in detail below with reference to the drawings.

[0029] Embodiment:

[0030] Referring to Figure 1 and Figure 2 The embodiment discloses a film edge cutting device, which comprises a base frame (not shown in the figure), a guide roller 10, a stepping motor 20, a support frame 30, a driving motor 40 and a blade 50.

[0031] Specifically, the base frame is generally a frame structure, and the guide roller 10 is arranged on the base frame. The two ends of the guide roller 10 are rotatably connected to the two sides of the base frame, and the axis of the guide roller 10 is arranged in the horizontal direction. In addition, the end of the guide roller 10 is also connected with a power assembly, and the power assembly can directly drive the guide roller 10 to continuously rotate.

[0032] The stepping motor 20 is arranged on the base frame, and the output shaft axis of the stepping motor 20 is parallel to the axis of the guide roller 10. The stepping motor 20 is located obliquely above one end of the guide roller 10, so that the projection of the stepping motor 20 on the horizontal plane is located outside one end of the guide roller 10.

[0033] The side of one end of the support frame 30 is connected with the output shaft of the stepping motor 20, so that the stepping motor 20 can directly drive the support frame 30 to rotate. The other side of the one end of the support frame 30 is rotatably arranged on the base frame, so that the rotation of the support frame 30 is more stable. In addition, the one end of the support frame 30 away from the stepping motor 20 is a U-shaped structure.

[0034] On the one end of the support frame 30 away from the stepping motor 20, the blade 50 is arranged on the one end of the U-shaped support frame 30. The blade 50 is rotatably arranged on the one end of the support frame 30, and the axis of the blade 50 is parallel to the axis of the guide roller 10. When the stepping motor 20 drives the support frame 30 to rotate, the blade 50 also rotates around the output shaft of the stepping motor 20, so that the cutting edge side of the blade 50 can be in contact with the surface of the guide roller 10.

[0035] In addition, a driving motor 40 is arranged on the end of the support frame 30 away from the stepping motor 20, and the output shaft of the driving motor 40 is connected with the blade 50, and is used for directly driving the blade 50 to rotate. When the driving motor 40 drives the blade 50 to rotate, the rotating direction of the blade 50 is opposite to the rotating direction of the guide roller 10.

[0036] In the embodiment, the guide roller 10 is arranged on the base frame and is driven to rotate by the power assembly. The film to be trimmed is arranged on the surface of the guide roller 10, and under the driving of other traction devices, the film slides on the guide roller 10. Then, the support frame 30 is driven to rotate by the stepping motor 20, the blade 50 is driven to descend by the support frame 30, the blade edge of the blade 50 is contacted with the film, and the blade 50 is continuously driven to rotate by the driving motor 40, so that the film edge is trimmed.

[0037] The technical scheme has simple structure, is convenient for production and manufacturing, and is very suitable for independent use.

[0038] In one specific embodiment,

[0039] The blade 50 is arranged close to the guide roller 10, so that the film edge is conveniently trimmed.

[0040] In addition, a pressing wheel 60 is arranged on the end of the guide roller 10 away from the blade 50, and the pressing wheel 60 is also arranged on the base frame and is in contact with the surface of the guide roller 10. The pressing wheel 60 is arranged to fix the other side of the film, so that the film is prevented from moving.

[0041] In another specific embodiment,

[0042] A groove 11 is arranged on one end of the guide roller 10, and the blade edge of the blade 50 is arranged in the groove 11. According to the technical scheme, the contact position of the blade edge of the blade 50 with the film is moved from the bottom of the blade 50 to the side of the blade 50 by a certain distance, so that the trimming mode of the blade 50 to the film is changed, and the trimming mode of the blade 50 is changed from pressure trimming to shearing trimming.

[0043] The pressure trimming refers to that the film is broken due to the pressing of the blade edge of the blade 50 on the film when the film passes through the contact position of the blade edge of the blade 50 and the guide roller 10. The shearing trimming refers to that the film is directly broken by the blade edge of the blade 50 when the film passes through the groove 11.

[0044] According to the design, the blade edge is prevented from directly contacting the guide roller 10, so that the service life of the blade 50 is prolonged.

[0045] Preferably, the two sides of the groove 11 are provided with a circular arc chamfer, avoiding damage to the film due to the edges on the groove 11.

[0046] In another specific embodiment,

[0047] The support frame 30 is further provided with two pressure wheels 60, which are located on the two sides of the blade 50. By providing a pressure wheel 60 on each side of the blade 50, the purpose is to ensure that the cutting position of the film is in a straightened state during the cutting process, thereby reducing the cutting error.

[0048] In another specific embodiment,

[0049] The covering area of the film on the guide roller 10 is greater than or equal to 15% of the outer circumferential surface of the guide roller 10. By adjusting the contact area between the film and the guide roller 10, the jumping phenomenon of the film on the guide roller 10 can be avoided.

[0050] Specifically, a pressure roller 70 is arranged on the base frame, and the pressure roller 70 is located on the side of the guide roller 10. The pressure roller 70 is parallel to the guide roller 10, and the surface of the pressure roller 70 is in contact with the surface of the guide roller 10. During use, the film passes between the pressure roller 70 and the guide roller 10, and then passes between the blade 50 and the guide roller 10.

[0051] The above-described embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation of the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. An apparatus for trimming a film, comprising: The utility model relates to a kind of film cutting device, including: Base frame; Guide roller, two ends are respectively arranged in the two sides of the base frame rotationally, one end of the guide roller is connected with power component; Stepping motor, arranged on the base frame, the output shaft of the stepping motor is parallel with the guide roller; Support frame, the side of one end of the support frame is connected with the output shaft of the stepping motor, and the other side of this end is arranged rotationally on the base frame; Driving motor, arranged on the support frame, and with the stepping motor respectively located the two ends of the support frame, the output shaft of the driving motor is parallel with the output shaft of the stepping motor; Blade, rotationally arranged on the output shaft of the driving motor, and the blade edge can be contacted with the surface of the guide roller.

2. The film slitting apparatus of claim 1 wherein, The blade is close to one end of the guide roller.

3. The film slitting apparatus of claim 2 wherein, The guide roller is provided with a press wheel on the end away from the blade.

4. The film slitting apparatus of claim 1 wherein, The guide roller is provided with a groove on one end, and the blade edge can be placed in the groove.

5. The film slitting apparatus of claim 4 wherein, The two sides of the groove are provided with circular arc chamfers.

6. The film slitting apparatus of claim 1 wherein, Two press wheels are further rotationally arranged on the support frame, and the two press wheels are respectively located on the two sides of the blade.

7. The film slitting apparatus of claim 1 wherein, The covering area of the film on the guide roller is greater than or equal to 15% of the outer circumferential surface of the guide roller.

8. The film slitting apparatus of claim 7, wherein The base frame is further provided with a press roller, and the press roller is located on the side of the guide roller. The press roller is parallel with the guide roller, and the surface of the press roller is in contact with the surface of the guide roller.

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