Electric film sample cutting machine

Abstract

The utility model discloses an electric film sample cutting machine which comprises a working table and a cutting mechanism used for cutting a film, two sets of fixing assemblies are oppositely arranged on the working table, and each fixing assembly comprises a fixing groove formed in the top surface of the working table and a bipolar electrostatic generator located in the fixing groove. A discharging rod is rotationally connected into the fixing groove, an electric wire of the bipolar electrostatic generator is connected with the discharging rod through a sliding ring, and a discharging roller shutter used for fixing a thin film is wound on the periphery of the discharging rod. Compared with the prior art, the bipolar electrostatic generator disclosed by the utility model can transfer static electricity to a thin film through the discharge rod and the discharge roller shutter in sequence, so that the thin film is adsorbed and fixed on the surface of the workbench under the action of the static electricity, the thin film is prevented from shifting in a sample cutting process, and the sample cutting precision of the thin film is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting, in particular to an electric film cutting machine. Background Art

[0002] With the continuous reform and innovation of packaging technology, there are more and more experiments related to packaging performance testing, and the shapes of samples prepared in various experiments are becoming more diverse. Therefore, it is urgent to design equipment for cutting film that is simple, easy to operate, efficient and powerful.

[0003] When cutting films, the existing instruments and equipment need to fix the films. Generally, two methods are used. One is to fix the films by negative pressure adsorption. In this fixing method, the films will be cut during the cutting process, which may cause air leakage and make the films unable to be stably fixed. The other is to directly press down the edge of the films with a pressing block. In this fixing method, a fixed force cannot be applied to the cutting area of ​​the films. As a result, the films in the cutting area may be offset during the cutting process, affecting the cutting quality of the films. Utility Model Content

[0004] The main purpose of the utility model is to provide an electric film cutting machine. A bipolar electrostatic generator can transfer static electricity to a film through a discharge rod and a discharge curtain in sequence, so that the film is adsorbed and fixed on the surface of a workbench under the action of static electricity, thereby avoiding the deviation of the film during the cutting process and ensuring the accuracy of film cutting.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An electric film cutting machine comprises a workbench and a cutting mechanism for cutting film, wherein two sets of fixing components are arranged opposite to each other on the workbench, wherein the fixing components comprise a fixing groove opened on the top surface of the workbench and a bipolar electrostatic generator located in the fixing groove, wherein a discharge rod is rotatably connected in the fixing groove, wherein the wires of the bipolar electrostatic generator are connected to the discharge rod via a slip ring, and a discharge roller curtain for fixing the film is wound around the outer periphery of the discharge rod.

[0007] Furthermore, the cutting mechanism comprises a three-axis displacement mechanism located above the workbench, a self-locking motor is fixed to the lifting end of the three-axis displacement mechanism, and a cutting knife is connected to the power output shaft of the self-locking motor.

[0008] Furthermore, a laser rangefinder is installed on the lifting part of the three-axis displacement mechanism.

[0009] Furthermore, the rotating ring of the slip ring is arranged on the periphery of the discharge rod and the slip ring housing is fixed in the fixing groove through a connecting rod.

[0010] Furthermore, the fixing assembly also includes a driving motor, a power output shaft of the driving motor is fixedly connected to the discharge rod, and the driving motor is fixed on the workbench.

[0011] Furthermore, a controller is included, and the controller is used to control the operation of the cutting mechanism and the fixing component.

[0012] Furthermore, side panels are installed on both sides of the workbench, and the three-axis displacement mechanism is fixed on the side panels.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The bipolar electrostatic generator of the utility model can transfer static electricity to the film through the discharge rod and the discharge curtain in sequence, so that the film is adsorbed and fixed on the surface of the workbench under the action of static electricity, thereby avoiding the deviation of the film during the cutting process and ensuring the accuracy of film cutting.

[0015] The laser distance meter of the utility model can detect the distance between itself and the film, and can calculate the thickness of the film by comparing the distance between itself and the top of the workbench, so as to facilitate setting the cutting parameters of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is an overall schematic diagram of an electric film cutting machine.

[0017] Figure 2 The utility model is a schematic top view of a workbench of an electric film cutting machine.

[0018] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a workbench of an electric film cutting machine.

[0019] Figure 4 Schematic diagram of the cutting knife structure for cutting circular samples.

[0020] Figure 5 Schematic diagram of the cutting knife structure for cutting rectangular samples.

[0021] In the figure: 1. workbench; 2. fixing assembly; 201. slip ring; 2011. connecting rod; 202. discharge rod; 203. fixing groove; 204. discharge roller shutter; 205. driving motor; 3. three-axis displacement mechanism; 4. self-locking motor; 5. cutting knife; 6. laser rangefinder; 7. side panel; 8. bipolar electrostatic generator; 9. controller. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-3 As shown, an electric film cutting machine includes a workbench 1 and a cutting mechanism for cutting film. Two sets of fixing components 2 are arranged relatively on the workbench 1. The fixing component 2 includes a fixing groove 203 opened on the top surface of the workbench 1 and a bipolar electrostatic generator 8 located in the fixing groove 203. A discharge rod 202 is rotatably connected in the fixing groove 203. The wires of the bipolar electrostatic generator 8 are connected to the discharge rod 202 through a slip ring 201. A discharge roller curtain 204 for fixing the film is wound around the outer periphery of the discharge rod 202. The discharge roller curtain 204 is made of conductive material.

[0024] In this embodiment, if Figure 2 and Figure 3 As shown, the rotating ring of the slip ring 201 is set on the outer periphery of the discharge rod 202 and the shell of the slip ring 201 is fixed in the fixing groove 203 through the connecting rod 2011. The slip ring 201 is a prior art, which can transmit power between the rotating body and the fixed body, and will not be described in detail here;

[0025] When the film is placed on the workbench 1, the personnel manually pulls the discharge curtain 204, places its free end on the top of the film, and controls the bipolar electrostatic generator 8 to work, so that the static electricity is transferred to the film through the discharge rod 202 and the discharge curtain 204 in sequence, and then the film is fixed to the surface of the workbench 1 under the action of static electricity. During this process, although the discharge rod 202 rotates, the transfer of static electricity is not affected by the action of the slip ring 201.

[0026] Among them, Figure 1 As shown, the cutting mechanism includes a three-axis displacement mechanism 3 located above the workbench 1, a self-locking motor 4 is fixed to the lifting end of the three-axis displacement mechanism 3, and a cutting knife 5 is connected to the power output shaft of the self-locking motor 4. The three-axis displacement mechanism 3 can drive the self-locking motor 4 to move on the X, Y, and Z axes, thereby changing the position of the self-locking motor 4, so that the cutting knife 5 at the bottom of the self-locking motor 4 can be aligned with the specified position of the film for cutting, and the cutting knife 5 can be replaced;

[0027] When a circular sample needs to be cut, the self-locking motor 4 will drive the corresponding cutting knife 5 to rotate, thereby cutting a circular sample. When a rectangular sample needs to be cut, the self-locking motor 4 will not work, but it can lock the corresponding cutting knife 5 to prevent the secondary cutting knife 5 from rotating, thereby utilizing the three-axis displacement mechanism 3 to drive the cutting knife 5 to descend and perform pressure cutting to cut a rectangular sample.

[0028] Among them, Figure 1As shown, a laser rangefinder 6 is installed on the lifting part of the three-axis displacement mechanism 3. When the three-axis displacement mechanism 3 is in the initial position, the laser rangefinder 6 detects that the distance between itself and the workbench 1 is unchanged. When the film is placed on the top of the workbench 1, the laser rangefinder 6 can be aligned with the film by moving the X and Y axes under the premise that the Z axis remains unchanged, so as to detect the distance between the laser rangefinder 6 itself and the film. Then, by comparing the above two distance values, the thickness of the film can be measured, so as to set the cutting parameters of the film.

[0029] Among them, Figure 2 As shown, the fixing assembly 2 also includes a driving motor 205, a power output shaft of the driving motor 205 is fixedly connected to the discharge rod 202, and the driving motor 205 is fixed on the workbench 1. When the released discharge curtain 204 needs to be retracted, the driving motor 205 is controlled to work, and its output end can drive the discharge rod 202 to rotate, thereby rolling up the discharge curtain 204 for subsequent use.

[0030] Among them, it also includes a controller 9, which is a PLC controller, which can control the operation of the three-axis displacement mechanism 3, the self-locking motor 4, the drive motor 205, the bipolar electrostatic generator 8 and the laser rangefinder 6. This is the existing technology and will not be elaborated on here.

[0031] Side plates 7 are installed on both sides of the workbench 1 , and the three-axis displacement mechanism 3 is fixed on the side plates 7 .

[0032] Working principle, first, when the film is placed on the workbench 1, then, the personnel manually pulls the discharge curtain 204, places its free end on the top of the film, and controls the bipolar electrostatic generator 8 to work, so that the static electricity is transferred to the film through the discharge rod 202 and the discharge curtain 204 in turn, and then the film is fixed on the surface of the workbench 1 under the action of static electricity. Next, the three-axis displacement mechanism 3 is controlled to work, so as to drive the cutting knife 5 to align with the specified position of the film for cutting. When the thickness of the film needs to be measured, the three-axis displacement mechanism 3 is first restored to the initial position, and then, under the premise that the Z axis remains unchanged, the laser rangefinder 6 can be aligned with the film by moving the X and Y axes, so as to detect the distance between the laser rangefinder 6 itself and the film, and then, by comparing the above two distance values, the thickness of the film can be measured, so as to set the cutting parameters of the film.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electric film cutting machine, comprising a workbench (1) and a cutting mechanism for cutting a film, characterized in that: Two groups of fixing components (2) are arranged opposite to each other on the workbench (1), the fixing components (2) comprising a fixing groove (203) opened on the top surface of the workbench (1) and a bipolar electrostatic generator (8) located in the fixing groove (203), a discharge rod (202) being rotatably connected in the fixing groove (203), an electric wire of the bipolar electrostatic generator (8) being connected to the discharge rod (202) via a slip ring (201), and a discharge roller curtain (204) for fixing a film being wound around the outer periphery of the discharge rod (202).

2. The electric film cutting machine according to claim 1, characterized in that: The cutting mechanism comprises a three-axis displacement mechanism (3) located above the workbench (1), a self-locking motor (4) being fixed to the lifting end of the three-axis displacement mechanism (3), and a cutting knife (5) being connected to the power output shaft of the self-locking motor (4).

3. The electric film cutting machine according to claim 2, characterized in that: A laser rangefinder (6) is installed on the lifting part of the three-axis displacement mechanism (3).

4. The electric film cutting machine according to claim 1, characterized in that: The rotating ring of the slip ring (201) is sleeved on the periphery of the discharge rod (202), and the shell of the slip ring (201) is fixed in the fixing groove (203) via a connecting rod (2011).

5. The electric film cutting machine according to claim 3, characterized in that: The fixing assembly (2) further comprises a driving motor (205), the power output shaft of the driving motor (205) being fixedly connected to the discharge rod (202), and the driving motor (205) being fixed on the workbench (1).

6. The electric film cutting machine according to claim 5, characterized in that: It also includes a controller (9), wherein the controller (9) is used to control the operation of the cutting mechanism and the fixing component (2).

7. The electric film cutting machine according to claim 2, characterized in that: Side plates (7) are installed on both sides of the workbench (1), and the three-axis displacement mechanism (3) is fixed on the side plates (7).

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