Dry film tearing mechanism

Abstract

The utility model discloses a dry film tearing mechanism. The dry film tearing mechanism comprises a film tearing seat body, a support, a cleaning rolling shaft, a viscous rolling shaft and an air injection gun. The film tearing seat body can move along the track in a reciprocating mode and comprises two supports which are arranged in a spaced mode. And the two brackets are arranged on the two supporting seats. The cleaning rolling shaft is installed on a support, and before film tearing, the cleaning rolling shaft is rolled to clean the surface of the protective film. And the sticky rolling shaft is arranged on the other bracket and is used for sticking and tearing the protective film. The air injection gun is installed on the film tearing base body and used for injecting air to the cleaning rolling shaft after film tearing is completed so that dust on the cleaning rolling shaft can be blown off. According to the dry film tearing mechanism, the cleaning rolling shaft is arranged, before film tearing, cleaning is conducted through the cleaning rolling shaft, then film tearing is conducted, it is avoided that the viscosity of the dry film tearing mechanism is affected by dust and sweat stains, the number of times of repeated use of the viscous rolling shaft is increased, air injection and dust blowing are conducted on the cleaning rolling shaft through the air injection gun after film tearing is finished, and the dust is prevented from affecting the film pasting yield.

Description

Technical Field

[0001] The present application relates to the technical field of flexible substrates, and more specifically to a dry film tearing mechanism. Background Art

[0002] In the production process of flexible circuit boards, the protective film covering the surface of the flexible circuit board needs to be removed before the subsequent development and etching process can be carried out. At present, most factories use sticky rollers to peel off the film of flexible circuit boards. However, since there are often pollutants such as dust and sweat stains on the surface of the PET film, this will cause the roller viscosity to decrease, and the film needs to be repeatedly peeled off, which affects the tearing efficiency. In addition, dust will also affect the yield of the film. Utility Model Content

[0003] The embodiment of the present application provides a method for manufacturing a flexible circuit board, including a film-tearing seat, a bracket, a cleaning roller, a sticky roller and an air gun. The film-tearing seat can reciprocate along a track, and the film-tearing seat includes two supports arranged at intervals. Two of the brackets are mounted on two of the supports. The cleaning roller is mounted on one of the brackets, and before film-tearing, the cleaning roller is rolled to clean the surface of the protective film. The sticky roller is mounted on another of the brackets, and is used to stick and tear off the protective film. The air gun is mounted on the film-tearing seat, and the air gun is used to spray air on the cleaning roller after film-tearing is completed to blow off dust on the cleaning roller.

[0004] Furthermore, the dry film tearing mechanism also includes a film unloading cylinder, which is installed on the film tearing base and is located on the side of the sticky roller away from the cleaning roller; the film unloading cylinder includes a push rod that can freely reciprocate and extend, and the push rod is used to extend outward after the film tearing is completed to knock off the protective film.

[0005] Furthermore, a cross bar is provided at the free end of the push rod.

[0006] Furthermore, the surface of the cross bar in contact with the protective film is provided with anti-slip rubber.

[0007] Furthermore, a mounting groove is formed on the support, and the bracket further comprises a connecting rod, and the connecting rod is installed in the mounting groove so that the bracket is installed on the support.

[0008] Furthermore, the bracket is detachably mounted on the support by means of a buckle.

[0009] Furthermore, the gun head of the air gun is arranged to be curved so that the central direction of the air jet from the air gun is tangent to the surface of the cleaning roller.

[0010] Furthermore, the air jet gun sprays air after the film is torn off.

[0011] Furthermore, the cleaning roller also includes an axial flow motor, and the axial flow motor is used to drive the cleaning roller to rotate.

[0012] Furthermore, the film tearing seat body tears the film along the diagonal direction of the protective film.

[0013] The dry film tearing mechanism of the present application is provided with a cleaning roller, which is first cleaned by the cleaning roller before tearing the film to prevent dust and sweat stains from affecting its stickiness and increase the number of times the sticky roller can be reused. At the end of film tearing, the cleaning roller is blown away with air by an air gun to prevent dust from affecting the yield of film sticking.

[0014] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 It is a structural schematic diagram of a first embodiment of the dry film tearing mechanism of the present application;

[0017] Figure 2 It is a structural schematic diagram of another embodiment of the dry film tearing mechanism of the present application;

[0018] Figure 3 It is a structural schematic diagram of another embodiment of the dry film tearing mechanism of the present application.

[0019] Explanation of the main component symbols: dry film tearing mechanism 100, film tearing seat 10, support 11, mounting groove 12, bracket 20, connecting rod 21, support rod 22, buckle 23, buckle plate 231, locking rod 232, cleaning roller 30, roller brush 31, axial flow motor 32, sticky roller 40, air gun 50, film unloading cylinder 60, push rod 61, cross bar 62, anti-slip rubber 63. DETAILED DESCRIPTION

[0020] The following further describes the embodiments of the present application in conjunction with the accompanying drawings. The same or similar reference numerals in the accompanying drawings represent the same or similar elements or elements with the same or similar functions.

[0021] In addition, the embodiments of the present application described below in conjunction with the drawings are exemplary and are only used to explain the embodiments of the present application and should not be construed as limiting the present application.

[0022] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] See also Figures 1 to 3 The dry film tearing mechanism 100 provided in the present application is used for the production of flexible circuit boards. The dry film tearing mechanism 100 includes a tearing seat 10, a bracket 20, a cleaning roller 30, a sticky roller 40 and an air gun 50. The tearing seat 10 can reciprocate along the track. The tearing seat 10 includes two spaced supports 11, and two brackets 20 are installed on the two supports 11. The cleaning roller 30 is installed on one bracket 20. Before tearing the film, the cleaning roller 30 is rolled to clean the surface of the protective film 400. The sticky roller 40 is installed on the other bracket 20 for sticking and tearing the protective film 400. The air gun 50 is installed on the tearing seat 10. The air gun 50 is used to spray the cleaning roller 30 after the film tearing is completed to blow off the dust on the cleaning roller 30.

[0024] The dry film tearing mechanism 100 of the present application is provided with a cleaning roller 30. Before tearing the film, the cleaning roller 30 is first cleaned and then the film is torn off, so as to prevent dust and sweat from affecting the stickiness of the sticky roller 40 and increase the number of times the sticky roller 40 can be reused. After the film tearing is completed, the cleaning roller 30 is blown away by the air jet gun 50 to prevent dust from affecting the yield.

[0025] Specifically, the dry film tearing mechanism 100 includes a film tearing base 10 , a bracket 20 , a cleaning roller 30 , a sticky roller 40 , an air jet gun 50 and a film unloading cylinder 60 .

[0026] The film-tearing seat 10 is fixed on a slidable slide rail (not shown), the slide rail can be close to and away from the product to be torn, and the film-tearing seat 10 can move back and forth along the slide rail to tear the film. The film-tearing seat 10 includes two spaced supports 11, the two supports 11 are arranged in parallel, and the supports 11 are provided with an inclined mounting groove 12, and the bracket 20 is installed in the mounting groove 12.

[0027] The bracket 20 includes two connecting rods 21 and a support rod 22. The two connecting rods 21 are arranged in parallel and spaced apart between the two support rods 22 to form the bracket 20. One of the connecting rods 21 is fixed to one end of the support rod 22, and the other end of the support rod 22 is provided with an installation port for installing the roller. The bracket 20 extends into the installation slot 12 through the connecting rod 21 and is installed on the support 11. The bracket 20 is detachably connected to the support 11 to facilitate replacement or cleaning of the roller. In the embodiment of the present application, the bracket 20 is detachably installed on the support 11 by means of a buckle 23, or a connection using a latch. Specifically, a bent lock hook 233 is formed on the side of the support 11, and a flip-up buckle plate 231 and a T-shaped lock rod 232 arranged on the buckle plate 231 are provided on the side of the bracket 20. The T-shaped lock rod 232 is buckled on the lock hook 233, and the bracket 20 can be fixedly installed on the support 11 by fastening the buckle plate 231. When disassembling, just open the buckle plate 231. In some other embodiments, the detachable connection can also be achieved by means of screws or the like.

[0028] The cleaning roller 30 is installed on the mounting opening of one of the brackets 20. The cleaning roller 30 includes a roller brush 31 and an axial flow motor 32. The roller brush 31 is installed on the outside of the axial flow motor 32. The axial flow motor 32 is used to drive the cleaning roller 30 to rotate. Before tearing the film, the roller brush 31 is close to the protective film 400, and the axial flow motor 32 drives the roller brush 31 to roll to wipe off the dust, sweat stains, etc. on the protective film 400. The built-in axial flow motor 32 is used to avoid excessive mechanical structure operation, and the various structures cooperate to cause wear and tear, which is easy to produce debris and affect the film application.

[0029] The adhesive roller 40 is mounted on the mounting opening of another bracket 20. The adhesive roller 40 is a freely rotatable roller. The adhesive roller 40 and the cleaning roller 30 are both detachably mounted on the bracket 20 by screws for easy replacement and maintenance.

[0030] The gun head of the air gun 50 is bent so that the center direction of the air jet of the air gun 50 is tangent to the surface of the cleaning roller 30. Specifically, there are two air guns 50, which are located between the two brackets 20. The directions of the nozzles of the two air guns 50 are toward the cleaning roller 30, or away from the sticky roller 40, to prevent the air jet from blowing dust toward the sticky roller 40.

[0031] The film unloading cylinder 60 is installed on the film tearing seat 10, and is located on the side of the sticky roller 40 away from the cleaning roller 30; the film unloading cylinder 60 includes a push rod 61 that can freely reciprocate and extend, and a cross bar 62 is provided at the free end of the push rod 61, and an anti-skid rubber 63 is provided on the cross bar 62. The cross bar 62 increases the contact area with the protective film 400 to prevent the protective film 400 from being penetrated. The anti-skid setting is to prevent the cross bar 62 from sliding relative to the protective film 400 when in contact with the protective film 400, which may easily cause the protective film 400 to be unable to be separated from the sticky roller 40.

[0032] When the dry film tearing mechanism 100 of the present application is tearing the film, the flexible substrate 200 is adsorbed and fixed on the base 300, and the protective film 400 is attached to one side of the flexible substrate 100. First, the support 11 drives the bracket 20 along the track to approach the corner position where the protective film 400 needs to be torn off, and the axial flow motor 32 starts to drive the roller brush 31 to rotate. The roller brush 31 rolls the surface of the protective film 400 to remove dust and sweat stains, etc. After cleaning, the axial flow motor 32 is turned off, and the cleaning roller 30 is in a free rotation state. The support 11 continues to move so that the sticky roller 40 contacts the corner of the protective film 400, and the support 11 moves 3-5 mm in the direction away from the protective film 400 to stick to the protective film 400. Then the support 11 moves in the diagonal direction of the corner of the protective film 400 to tear off the protective film 400. When the support 11 moves to the set distance, the film tearing is completed. At this time, the air gun 50 sprays high pressure gas to clean the cleaning roller 30; at the same time, the film unloading cylinder 60 quickly pushes out the push rod 61 to knock down the protective film 400, completing one film tearing. The support 11 moves back to the corner position of the protective film 400 to perform the next film tearing.

[0033] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, unless otherwise clearly and specifically defined.

[0035] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A dry film tearing mechanism for manufacturing flexible circuit boards, characterized in that: include: The film-tearing seat body can reciprocate along the track, and the film-tearing seat body includes two supports arranged at intervals; A bracket, wherein two brackets are mounted on the two supports; A cleaning roller, the cleaning roller is mounted on one of the brackets, and before tearing the film, the cleaning roller is rolled to clean the surface of the protective film; An adhesive roller, which is mounted on the other bracket and is used for sticking and tearing off the protective film; The air jet gun is installed on the film tearing seat body and is used to spray air to the cleaning roller after the film tearing is completed to blow off the dust on the cleaning roller.

2. The dry film tearing mechanism according to claim 1, characterized in that: The dry film tearing mechanism also includes a film unloading cylinder, which is installed on the film tearing base and is located on the side of the sticky roller away from the cleaning roller; the film unloading cylinder includes a push rod that can freely reciprocate and extend, and the push rod is used to extend outward after the film tearing is completed to knock off the protective film.

3. The dry film tearing mechanism according to claim 2, characterized in that: The free end of the push rod is provided with a cross bar.

4. The dry film tearing mechanism according to claim 3, characterized in that: The surface of the cross bar in contact with the protective film is provided with anti-slip rubber.

5. The dry film tearing mechanism according to claim 1, characterized in that: The support is provided with a mounting groove, and the bracket further comprises a connecting rod, and the connecting rod is installed in the mounting groove so that the bracket is installed on the support.

6. The dry film tearing mechanism according to claim 1, characterized in that: The bracket is detachably mounted on the support through buckles.

7. The dry film tearing mechanism according to claim 1, characterized in that: The gun head of the air jet gun is arranged in a curved manner so that the central direction of the air jet from the air jet gun is tangent to the surface of the cleaning roller.

8. The dry film tearing mechanism according to claim 1 or 7, characterized in that: The air jet gun sprays air after the film is torn off.

9. The dry film tearing mechanism according to claim 1, characterized in that: The cleaning roller further comprises an axial flow motor, and the axial flow motor is used for driving the cleaning roller to rotate.

10. The dry film tearing mechanism according to claim 1, characterized in that: The film tearing seat body tears the film along the diagonal direction of the protective film.

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