CN1147385C - Apparatus and method for processing thin film pore by electric arc - Google Patents

Abstract

An apparatus and method for processing thin film pores by electric arc; the processing device mainly comprises: a film feeding device, an arc generator module, a supporting plate and a programmable controller; the programmable controller is used for controlling the feeding rate and the film tension; the electric arc generator module consists of an electric arc generator; the supporting plate is arranged below the film feeding device, the plate body is provided with a hole, and the bottom of the plate body is connected with a vacuum pressure source to discharge high-temperature waste gas; the processing method comprises the following steps: utilizing electric arc to generate heat energy to melt the film to form pores; controlling arc energy by adjusting current or voltage; the fine holes processed by the method have smooth hole edges and high strength.

Description

Apparatus and method for machining thin film pores by electric arc

technical field

The invention relates to a device and method for processing thin film pores, in particular to a device and method for processing thin film pores by electric arc.

Background technique

Generally common polymer films with pores, such as packaging materials, raincoats, liners, etc., the processing method of perforating the film, as shown in Figure 1, which represents a hot needle punching technology, wherein, the processed The film 10 is placed on the workbench, driven by a feeding device, the film 10 passes between a hot needle roller 11 and the brush back wheel 12, the film 10 is supported by the brush back wheel 12, and the surface of the hot needle roller 11 There are a plurality of hot needles 111 capable of conducting heat energy, and the hot needle roller 11 and the brush back wheel 12 are respectively driven to rotate by the power device, when the processed film 10 is fed to the hot needle roller 11 and the brush back wheel 12 In time, it is pierced by the hot needle 111 on the hot needle roller 11, and a plurality of fine holes 101 are formed on the surface of the film 10. When the hot needle 111 penetrates the film 10, the roller is still rotating, which is easy Drag or touch the edge of the fine hole 101, at this time, the film is in the form of hot gel, which is easy to cause the remaining gelatinous film on the periphery of each fine hole 101, which can be brushed off by means of the rotation of the back wheel 12 of the brush. The glue-like film remaining on the pores 101 makes the hot glue-like glue dust be brushed off. This kind of device still has the following disadvantages in practical application and production:

1. The cost of hot needle is high;

2. The hot needle is easy to wear, and the thickness is uneven, resulting in inconsistent pore diameter;

3. The hot needle is easy to stick to rubber dust;

4. The back wheel of the brush is used for a long time, and it is easy to stick an adhesive film, which will cause damage;

5. The pore diameter of the punctured hole is uneven, and the edge of the hole is not smooth, and the pore diameter cannot be adjusted;

6. Cannot elastically change the hole spacing;

7. The distribution area of pores cannot be controlled.

Contents of the invention

The main purpose of the present invention is to provide a device and method for processing thin film pores by electric arc without mucous membrane, which is to generate heat energy by means of instantaneous electric arc, melt the film instantly at high temperature, and form a plurality of through pores on the film. Condensation from the middle to the outside, so that the edge of the hole is smooth and free of chips, and the strength of the fine hole remains intact.

The second object of the present invention is to provide a device and method applicable to processing pores of various forms of films, wherein the energy of the arc can be controlled by adjusting the current or voltage, and then the melting temperature can be controlled, so that it can be applied to different Film processing for thickness, material and pore size requirements.

Another object of the present invention is to provide a device and method for processing thin film pores that can control the distribution area of the pores, mainly by arranging a plurality of arc generators to cooperate with the feeding of the film to generate matrix pores. Combined with a programmable control system, it is possible to process fine hole distribution in a controllable area.

To achieve the above object, the present invention takes the following measures:

The device of the present invention for processing thin film pores by electric arc comprises:

a power supply assembly;

A film feeding device, including a feed side and a receiving side, so as to transport the film;

It is characterized in that it also includes: an arc generator assembly, a support plate and a programmable controller;

The film feeding device is connected with a programmable controller to control its feeding rate and film tension;

The arc generator assembly is composed of at least two arc generators arranged above the film feeding device. Each arc generator has an action control circuit, which can generate heat instantly. It is controlled by a programmable controller and cooperates with the feeding of the film. Control the processing area of thin film fine cloth;

The support plate is located in the machine table corresponding to the lower part of the film feeding device. There are small holes through the plate body of the support plate, and a vacuum pressure source is connected to the bottom of the support plate to discharge the high-temperature waste gas in the machine table during processing.

The method for utilizing electric arc machining thin film pores of the present invention comprises the following steps:

① Align the arc generator assembly above the film feeding device;

②The arc generator component is connected to the control circuit, and connected to a high-frequency transformer component respectively;

③The high-frequency transformer component is connected to a primary side circuit control component;

④ The primary side circuit control component is connected to a power supply component;

⑤ Each component is controlled by a programmable controller;

⑥Use the digital control method of the primary side circuit to control the film tension and feed rate of the film feeding device;

⑦ Utilize the digital control method of the primary side circuit to control the arc generation frequency and action timing;

⑧Adjust the current value and voltage value of the power supply components to control the energy of the high-frequency transformer components;

⑨ Use the arc to generate heat instantly, and cooperate with the feeding of the film to process the pores of the film.

Description of drawings

Fig. 1 is the schematic diagram of the processing method of traditional thin film pores;

Fig. 2 is the schematic diagram of arc generator assembly processing device of the present invention;

Fig. 3 is the processing schematic diagram of the present invention;

Fig. 4 is the schematic diagram of processed film product of the present invention;

Fig. 5 is the schematic diagram of film processing state of the present invention;

Fig. 6 is the flow chart of the method for arc machining thin film pores of the present invention;

Detailed ways

The present invention is described in detail as follows in conjunction with embodiment and accompanying drawing:

A method and device of the present invention for processing thin pores of a film by electric arc, which uses electric arc to generate heat to instantly melt a high molecular polymer material film, so that many fine pores appear on the film; Fig. 2 is the device and method of the present invention Utilize the schematic diagram of electric arc processing device, wherein, utilize the device 20 of electric arc processing film fine hole to mainly comprise the arc generator assembly 21 that is made up of several arc generators 211, the action of each arc generator 211, can adopt independent control circuit, also A group control circuit can be used to connect several arc generators 211 to the high-frequency transformer assembly 22, and the high-frequency transformer assembly 22 is also connected to the primary side circuit control assembly 23, and the above-mentioned components are controlled by a programmable controller 24. Control, provide high-frequency electric energy through the high-frequency transformer assembly 22, generate thermal energy instantaneously, melt the film 10 at high temperature, and penetrate the film 10, so that several through-shaped pores 101 appear on it, and each pore 101 passes through in an instant When hot melted, the hole will shrink from the middle to the outside, so that the edges of the pores 101 are smooth and free of chips, and the strength damage of the pores 101 can also be minimized. In addition, in order to effectively control the current or voltage, a power supply component 25 can be configured to control the energy of the arc generator component 21 and further control its melting temperature to adapt to films of different thicknesses, materials and apertures.

Furthermore, the present invention utilizes the control method of electric arc machining film pores to control the frequency of electric arc and the timing of work by using the primary side circuit control assembly 23 in a digital control mode, so as to achieve controllable processing of film 10 pores 101. distribution area, so that the pores 101 on the film 10 can be arranged in any shape; and by adjusting the energy of the power supply component 25, the secondary side energy output of the high-frequency transformer group 22 can be controlled, and then controlled and applied to different thicknesses. , material and pore size of the film 10 for more diverse applications.

Fig. 3 is a schematic diagram of the processing state of the device of the present invention, wherein the arc generator assembly 21 can simultaneously process the fine holes 101 in the entire row or row, and cooperate with the feeding of the film 10 to produce matrix fine holes 101. With a programmable control system, it is possible to control the area to be processed on the film 10 to distribute the pores 101. This control area can be designed in various shapes, such as rectangle, triangle, circle or quincunx, etc. etc. (as shown in Figure 4), the control method is to use the digital control mode of the primary side circuit control component 23 (as shown in Figure 2) to control the generation frequency and timing of the arc generator component 21, so as to reach the controllable area The pores 101 are distributed and processed, and the distance between the pores 101 on the film 10 can be changed as required; in addition, in order to be applied to the film 10 of different materials, thicknesses, and apertures, it is necessary to adjust the current of the power supply assembly 25 or The voltage can control the energy of the arc generator assembly 21, and then control its melting temperature, so as to be applicable to the film 10 required by various materials, thicknesses and apertures; moreover, the present invention processes the film 10 into pores 101 instantly with an electric arc In this way, each fine hole 101 is thermally melted instantly, and the hole will shrink from the middle to the outside, so that the edge of the hole is smooth and free of chips, and the strength of the fine hole 101 will not be damaged.

Fig. 5 is a schematic diagram of an embodiment of the present invention, wherein an array of arc generator components 21, a high-frequency transformer component 22, a primary side circuit control component 23 and a power supply component 25 can be assembled in a closed machine 30 at the same time, according to the The shape of the film pores 101 to be processed is different, and different arrangements are made to process the film pores 101. The film 10 is sequentially fed into the machine 30 from the feed side 311 of a feed device 31, and corresponds to Underneath the arranged and combined arc generator assembly 21, through the feed cooperation of the film 10, the pores 101 are melt-processed, so that the required pores 101 are distributed on the preset area of the film 10, and the melting of the pores 101 is to be completed. Afterwards, the film 10 is fed to the receiving side 312 to complete the processing flow. Among them, in the machine platform 30 below the film 10 corresponding to the arc generator assembly 21, a support plate 32 is set, and several holes 321 can be provided on the support plate 32, because heat energy is generated in the machine platform 30 during processing operations. In order to cool the perforated film 10 as soon as possible, a vacuum pressure source is connected under the supporting plate 32 to carry out the pumping action. To be too high, in order to facilitate the processing operation, while cooling equipment such as fan 33 can also be provided with cooling equipment such as fan 33 in the suitable position in machine table 30, in order to the film 10 can cool rapidly after processing.

Fig. 6 is the flow chart of the method for arc processing thin film pores of the present invention, wherein the arc generator assembly 21 is controlled by a programmable controller 24, and the programmable controller 24 is connected to the high-frequency transformer assembly 22 and the primary side circuit control assembly at the same time 23 and the power supply unit 25, so that the group of programmable controllers 24 can control the film tension and the feed rate of the film feeding device 31, and perform the arc melting fine hole 101 processing action; use the digital control mode of the primary side circuit to control The frequency of arc generation and the timing of work are used to control the distribution area of the pores to be processed. The pores in the distribution area of the processing of pores can be arranged in any shape; and by adjusting the current value and voltage value of the power supply component, the high-frequency transformer component can be controlled. 22, and then control the energy of the arc generator assembly 21, so as to be applied to film processing of different aperture sizes, materials and thicknesses, so as to adapt to film processing of various polymer materials.

The above description is to illustrate the structural features of the present invention by means of preferred embodiments, and is not intended to limit the protection scope of the present invention.

Claims (12)

1. A device for processing thin film pores by electric arc, comprising: a power supply assembly; A film feeding device, including a feed side and a receiving side, so as to transport the film; It is characterized in that it also includes: an arc generator assembly, a support plate and a programmable controller; The film feeding device is connected with a programmable controller to control its feeding rate and film tension; The arc generator assembly is composed of at least two arc generators arranged above the film feeding device. Each arc generator has an action control circuit, which can generate heat instantly. It is controlled by a programmable controller and cooperates with the feeding of the film. Control the pore distribution area of the processed film; The support plate is located in the machine table corresponding to the lower part of the film feeding device. There are small holes through the plate body of the support plate, and a vacuum pressure source is connected to the bottom of the support plate to discharge the high-temperature waste gas in the machine table during processing. 2. The device for processing thin film pores according to claim 1, characterized in that, the control circuit of the arc generator assembly adopts an independent control circuit. 3. The device for processing thin film pores according to claim 1, characterized in that, the control circuit of the arc generation component adopts a group control circuit. 4. The device for processing thin film pores according to claim 1, wherein the arc generator assembly is connected to a primary side circuit control assembly and is controlled by the programmable controller. 5. The device for processing thin film pores according to claim 4, characterized in that the arc generator component is connected to the high frequency transformer component and controlled by the programmable controller. 6. The device for processing thin film pores according to claim 5, wherein the arc generator component is connected to the power supply component and controlled by the programmable controller. 7. The device for processing thin film pores according to claim 1, characterized in that the arc generator of the arc generator assembly can be assembled at any position. 8. The device for processing thin film pores according to claim 1, characterized in that a cooling device is provided inside the machine. 9. A method for machining pores of thin films by electric arc, characterized in that it comprises the following steps: ① Align the arc generator assembly above the film feeding device; ②The arc generator component is connected to the control circuit, and connected to a high-frequency transformer component respectively; ③The high-frequency transformer component is connected to a primary side circuit control component; ④ The primary side circuit control components are connected to the power supply components; ⑤ Each component is controlled by a programmable controller; ⑥Use the digital control method of the primary side circuit to control the film tension and feed rate of the film feeding device; ⑦ Utilize the digital control method of the primary side circuit to control the arc generation frequency and action timing; ⑧Adjust the current value and voltage value of the power supply components to control the energy of the high-frequency transformer components; ⑨ Use the arc to generate heat instantly, and cooperate with the feeding of the film to process the pores of the film. 10. The method for processing pores in a thin film according to claim 9, characterized in that step ⑦ controls the frequency and timing of electric arc generation to control the distribution of pores in a specific area of the thin film. 11. The method for processing pores of a film according to claim 10, characterized in that the specific pore distribution area on the film can be an arrangement of pores of any shape. 12. The method for processing thin film pores according to claim 9, characterized in that the step ⑧ controls the energy of the high-frequency transformer assembly, and then can control the energy of the arc generator assembly, which can adapt to different aperture sizes and film thicknesses. and film processing of materials.

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