Preparation device and preparation method of modified PA6 composite film

Abstract

The invention belongs to the technical field of film preparation, and particularly relates to a modified PA6 composite film preparation device and method.The modified PA6 composite film preparation device comprises a machine base, and a film feeding mechanism, a film supporting mechanism and a film pressing mechanism are installed on the machine base; the film conveying mechanism is used for conveying two layers of films; the film expanding mechanism is used for expanding the two layers of films; the ash removal mechanism is used for removing ash on the inner surfaces of the films on the two sides; the film pressing mechanism is used for pressing the films on the two sides together; the dust removal mechanism comprises an air blowing cover and a filter cover, the air blowing cover is fixedly connected with the filter cover, the air blowing cover is attached to the inner surface of the film, an air blowing opening is formed in the side, facing the filter cover, of the air blowing cover and used for blowing away dust on the surface of the film, and multiple layers of filter screens are connected into the filter cover; according to the film laminating machine, the film is expanded through the film expanding mechanism, and the dust cleaning mechanism is connected to the film expanding mechanism and is used for cleaning dust and impurities on the inner side of the film, so that the laminating surface of the film is clean, and the quality of the laminated film is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of film processing, and in particular to a modified PA6 composite film preparation device and preparation method. Background Art

[0002] The main purpose of film lamination is to combine multiple layers of materials into a whole by heating and pressurizing to improve the performance of the material or to achieve specific functions; this method is often used in plastic processing, especially thermoplastics and thermosetting plastics; lamination molding is a molding method that combines two or more layers of materials together by heating and pressurizing to form a single whole; this method can be used for the same or different materials and is widely used in plastic and rubber processing; for example, in plastic processing, lamination molding is often used to produce artificial leather products or composite films. For thermosetting plastics, it is an important method for manufacturing reinforced plastics and products.

[0003] There are many lamination techniques, including adhesive lamination, flame-melt lamination and hot-melt lamination. Hot-melt lamination technology is based on hot-melt adhesive, which heats the melted adhesive to bond with the fabric and then cools and solidifies. After lamination, dust or impurities on the surface of the film may cause bubbles or bulges to appear on the laminated film, affecting the quality of film processing. Therefore, it is very important to clean the film before lamination. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a modified PA6 composite film preparation device and method, which provides a dust cleaning mechanism to clean the film, thereby ensuring the quality of the film after lamination, and aims to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: a modified PA6 composite film preparation device proposed by the present invention comprises: a machine base, on which a film feeding mechanism, a film supporting mechanism and a film pressing mechanism are installed; the film feeding mechanism is used to feed two layers of film; the film supporting mechanism is used to open the two layers of film; the dust cleaning mechanism is installed on the film supporting mechanism, and is used to clean the inner surfaces of the films on both sides; the film pressing mechanism is used to press the films on both sides together; the dust cleaning mechanism comprises a blowing hood and a filter hood, the blowing hood and the filter hood are fixedly connected, the blowing hood is in contact with the inner surface of the film, and a blowing port is provided on the side of the blowing hood facing the filter hood, the blowing port is used to blow off dust on the surface of the film, and the direction of the airflow blown out of the blowing port is opposite to the direction of film feeding; both sides of the filter hood are set as opening structures, and multiple layers of filter screens are connected in the filter hood for filtering dust.

[0006] As a preferred technical solution of the present invention, a rotating blade is rotatably connected inside the filter cover, the airflow blown out from the air outlet can drive the rotating blade to rotate, and a rotating wheel is coaxially fixedly connected to the rotating blade.

[0007] As a preferred technical solution of the present invention, the filter cover is slidably connected to a lifting frame, and the lifting frame is fixedly connected to a knocking rod for knocking on the film to shake off dust on its surface, and the knocking rod is arranged on the outer surface of the film; the filter cover is fixedly connected to a bracket, and the bracket is fixedly connected to a sliding rod slidably connected to the lifting frame, and a spring is connected to the surface of the sliding rod.

[0008] As a preferred technical solution of the present invention, the lifting frame is connected with a pressure wheel cooperating with the rotating wheel, and a concave groove is provided on the surface of the rotating wheel. Each time the pressure wheel rolls into the concave groove, the knocking rod knocks the film once.

[0009] As a preferred technical solution of the present invention, a blocking cover is fixedly connected to the filter cover to prevent dust from spreading.

[0010] As a preferred technical solution of the present invention, the film supporting mechanism includes a fixed frame, a pair of sliders are symmetrically slidably connected to the fixed frame, the fixed frame is provided with sliding holes slidably connected to the sliders, and a supporting roller is fixedly connected to the slider, a threaded rod is rotatably connected to the fixed frame, a threaded block is threadedly connected to the threaded rod, and a connecting rod is rotatably connected between the threaded block and the two sliders.

[0011] As a preferred technical solution of the present invention, a fixing rod is fixedly connected to the slider, the blow hood is rotatably connected to the slider, and a connecting rod is rotatably connected to the blow hood, the connecting rod is fixedly connected to the fixing rod through a bolt assembly, and the fixing rod is provided with a strip hole that cooperates with the bolt assembly; and a pair of limiting rollers are connected to both ends of the fixing frame.

[0012] As a preferred technical solution of the present invention, the film feeding mechanism includes a first frame, a pair of rotating rollers are connected to the first frame, and a film roll is rotatably connected to the rotating rollers.

[0013] As a preferred technical solution of the present invention, the film pressing mechanism includes a second frame, a pair of film pressing rollers are connected to the second frame, and a driving motor is installed at one end of the film pressing rollers.

[0014] A method for preparing a modified PA6 composite film comprises the following steps:

[0015] Step 1: Install two film rolls on two rotating rollers respectively, and correctly roll the film around the film supporting mechanism and guide it between two film pressing rollers;

[0016] Step 2: The driving motor drives the two laminating rollers to rotate, presses the two layers of film together, and drives the film reel to rotate, driving the film to be transported forward;

[0017] Step 3: During the film conveying process, the blowing hood blows air to the inner surface of the film, blowing the dust on the inner surface into the filter hood, and filtering the dust through the filter hood;

[0018] Step 4: At the same time, the blowing hood blows the rotating blades to rotate, driving the rotating wheel to rotate, so that the pressing wheel continuously rolls into the concave groove, and then drives the knocking rod to continuously knock the outer surface of the film to shake off the dust on the surface.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention stretches the film through a film-supporting mechanism, and a dust-cleaning mechanism is connected to the film-supporting mechanism. The dust-cleaning mechanism cleans the dust and impurities inside the film, so that the pressing surface of the film is clean, thereby ensuring the quality of the film after lamination.

[0021] 2. The cleaning mechanism of the present invention blows air toward the surface of the film through the blowing hood, and during the blowing process, it continuously drives the knocking rod to knock on the surface of the film, thereby shaking off the dust on the surface of the film, and the dust is blown into the filter hood by the airflow, and the dust is filtered and collected, thereby improving the cleaning effect on the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a modified PA6 composite film preparation device proposed in the present invention.

[0023] Figure 2 This is a front view schematic diagram of a modified PA6 composite film preparation device proposed by the present invention.

[0024] Figure 3 This is a schematic diagram of the membrane supporting mechanism and dust cleaning mechanism proposed in the present invention.

[0025] Figure 4 for Figure 3 Schematic diagram from another angle.

[0026] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0027] Figure 6 This is a schematic diagram of the structure of the dust cleaning mechanism proposed in the present invention.

[0028] Figure 7 This is a schematic diagram of the dust cleaning mechanism proposed by the present invention from another angle.

[0029] Figure 8 for Figure 7 A partial enlargement of the middle part.

[0030] In the figure: 1. base; 2. first frame; 21. rotating roller; 22. film reel; 3. second frame; 31. film pressing roller; 32. driving motor; 4. film supporting mechanism; 41. fixed frame; 42. limiting roller; 43. slider; 44. sliding hole; 45. threaded block; 46. connecting rod; 47. threaded rod; 48. fixed rod; 49. strip hole; 410. supporting roller; 5. cleaning mechanism; 51. blowing hood; 52. filter hood; 53. blowing port; 54. connecting rod; 55. knocking rod; 56. lifting frame; 57. bracket; 58. sliding rod; 59. spring; 510. pressing wheel; 511. rotating wheel; 512. recessed groove; 513. rotating blade; 514. filter screen; 515. shield. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment: This embodiment discloses a modified PA6 composite film preparation device, such as Figure 1-Figure 8 As shown, it includes: a base 1, on which a film feeding mechanism, a film supporting mechanism 4 and a film pressing mechanism are installed; the film feeding mechanism is used to transport two layers of film, and the film feeding mechanism includes a first frame 2, which is fixedly connected to the base 1, and a pair of rotating rollers 21 are connected to the first frame 2, and the two rotating rollers 21 are distributed up and down, and a film reel 22 is rotatably connected to the rotating rollers 21, and a film is rolled up on the film reel 22; the film supporting mechanism 4 is used to spread the two layers of film; a pair of cleaning mechanisms 5 are provided and installed on the film supporting mechanism 4, and are used to clean the inner surfaces of the films on both sides; the film pressing mechanism is used to press the films on both sides together; the film pressing mechanism includes a second frame 3, and a pair of film pressing rollers 31 are connected to the second frame 3, and the film pressing rollers 31 are hot pressing rollers, and the two film pressing rollers 31 are connected by gear transmission, and one end of the film pressing roller 31 is installed with a driving motor 32, and the two film pressing rollers 31 are driven to rotate in opposite directions by the driving motor 32.

[0033] like Figure 3-Figure 4As shown, the film-supporting mechanism 4 includes a fixed frame 41, and a pair of limiting rollers 42 are connected to both ends of the fixed frame 41. The film passes through the middle of the two limiting rollers 42, and the limiting rollers 42 play a role in guiding and limiting the film. A pair of sliders 43 are symmetrically slidably connected to the fixed frame 41, and the two sliders 43 are distributed up and down. The cleaning mechanism 5 is installed on the sliders 43. The fixed frame 41 is provided with a sliding hole 44 slidably connected to the sliders 43, and the sliders 43 are fixedly connected with supporting rollers 410. The two supporting rollers 410 support the inner side surfaces of the two films respectively. A threaded rod 47 is rotatably connected to the fixed frame 41, and a threaded block 45 is threadedly connected to the threaded rod 47. A connecting rod 46 is rotatably connected between the threaded block 45 and the two sliders 43; the threaded rod 47 can be rotated to drive the threaded block 45 to move, and then drive the two sliders 43 to slide, so as to adjust the size of the film opening, and the film on both sides is opened into a V shape by the film-supporting mechanism 4, so that the cleaning mechanism 5 can clean the surface of the film conveniently.

[0034] like Figure 6-Figure 7 As shown, the dust cleaning mechanism 5 includes a blowing hood 51 and a filter hood 52, both of which are flat structures, and are fixedly connected to each other. Both of them are in contact with the inner surface of the film, and a blowing port 53 is provided on the side of the blowing hood 51 facing the filter hood 52. The blowing port 53 is an oblique structure, and part of the wind blows toward the surface of the film, and the other part of the wind blows toward the direction of the filter hood 52. The blowing hood 51 can be connected to an external fan through an air duct, and air is supplied into the blowing hood 51 through the fan box, and the wind is blown out from the blowing port 53. The wind blown out from the blowing port 53 blows away the dust on the surface of the film, and the airflow direction of the blowing port 53 is opposite to the film conveying direction; both sides of the filter hood 52 are set as open structures, and a multi-layer filter screen 514 is connected to the filter hood 52, and dust enters from the opening at one end of the filter hood and exits from the opening at the other end, and the dust is filtered and collected through the filter screen 514, and the filter screen 514 can be disassembled and cleaned regularly.

[0035] Among them, Figure 5 As shown, a fixing rod 48 is fixedly connected to the slider 43, a blowing hood 51 is rotatably connected to the slider 43, and a connecting rod 54 is rotatably connected to the blowing hood 51, the connecting rod 54 is fixedly connected to the fixing rod 48 through a bolt assembly, and a strip hole 49 is provided on the fixing rod 48 to cooperate with the bolt assembly. By changing the position of the connecting rod 54 on the strip hole 49, the contact angle between the cleaning mechanism 5 and the film can be adjusted.

[0036] like Figure 8As shown, in order to further improve the dust cleaning effect, a rotating blade 513 is rotatably connected in the filter cover 52, and the air flow blown out of the air outlet 53 can drive the rotating blade 513 to rotate, and a rotating wheel 511 is coaxially fixedly connected to the rotating blade 513; a lifting frame 56 is slidably connected to the filter cover 52, and a knocking rod 55 is fixedly connected to the lifting frame 56, which is used to knock the film and vibrate off the dust on its surface, and the knocking rod 55 is arranged on the outer surface of the film; a bracket 57 is fixedly connected to the filter cover 52, and a sliding rod 58 slidably connected to the lifting frame 56 is fixedly connected to the bracket 57, and a spring 59 is connected to the surface of the sliding rod 58, and the spring 59 applies pressure to the lifting frame 56 toward the rotating wheel 511; the lifting frame 56 is connected to a pressure rod 55 that cooperates with the rotating wheel 511 Wheel 510, through the spring 59, the pressure wheel 510 is tightly fitted to the surface of the rotating wheel 511, and the surface of the rotating wheel 511 is provided with a recessed groove 512, each time the pressure wheel 510 rolls into the recessed groove 512, the knocking rod 55 knocks the film once; in specific implementation: the airflow blown out by the blowing hood 51 drives the rotating blades 513 to rotate, and then drives the rotating wheel 511 to rotate. During the rotation of the rotating wheel 511, under the elastic force of the spring 59, the pressure wheel 510 continuously rolls into the recessed groove 512, and then drives the knocking rod 55 to continuously knock on the outer surface of the film, and the dust on the surface of the film is shaken off. At the same time, the shaken off dust is blown into the filter cover 52, and the dust is filtered through the filter screen 514, which further improves the cleaning effect of the film.

[0037] Preferably, a blocking cover 515 is fixedly connected to the filter cover 52 , and the blocking cover 515 can prevent the dust from being shaken off from spreading, so that the dust can be blown into the filter cover 52 .

[0038] A method for preparing a modified PA6 composite film comprises the following steps:

[0039] Step 1: Install two film rolls 22 on two rotating rollers 21 respectively, and correctly roll the film around the film supporting mechanism 4 and guide it between two film pressing rollers 31;

[0040] Step 2: The driving motor 32 drives the two laminating rollers 31 to rotate, press the two layers of film together, and drives the film reel 22 to rotate, driving the film to be transported forward;

[0041] Step 3: During the film conveying process, the blowing cover 51 blows air to the inner surface of the film, blowing the dust on the inner surface into the filter cover 52, and the dust is filtered by the filter cover 52;

[0042] Step 4: At the same time, the blowing cover 51 blows the rotating blades 513 to rotate, driving the rotating wheel 511 to rotate, so that the pressing wheel 510 continuously rolls into the concave groove 512, and then drives the knocking rod 55 to continuously knock the outer surface of the film to shake off the dust on the surface.

[0043] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A modified PA6 composite film preparation device, characterized in that: include: A machine base (1), on which a film feeding mechanism, a film supporting mechanism (4) and a film pressing mechanism are installed; The film conveying mechanism is used to convey two layers of film; The film-supporting mechanism (4) is used to support the two layers of film; The dust cleaning mechanism (5) is installed on the film supporting mechanism (4) and is used to clean the inner surfaces of the films on both sides; The film pressing mechanism is used to press the films on both sides together; The dust cleaning mechanism (5) comprises a blowing hood (51) and a filtering hood (52), the blowing hood (51) and the filtering hood (52) are fixedly connected, the blowing hood (51) is in contact with the inner surface of the film, a blowing port (53) is provided on the side of the blowing hood (51) facing the filtering hood (52), the blowing port (53) is used to blow away dust on the surface of the film, and the direction of the air flow blown out by the blowing port (53) is opposite to the direction of film conveying; Both sides of the filter cover (52) are configured as open structures, and a plurality of filter screens (514) are connected inside the filter cover (52) for filtering dust.

2. A modified PA6 composite film preparation device according to claim 1, characterized in that: A rotating blade (513) is rotatably connected inside the filter cover (52); the airflow blown out of the air outlet (53) can drive the rotating blade (513) to rotate, and a rotating wheel (511) is coaxially fixedly connected to the rotating blade (513).

3. A modified PA6 composite film preparation device according to claim 2, characterized in that: The filter cover (52) is slidably connected to a lifting frame (56), and the lifting frame (56) is fixedly connected to a knocking rod (55) for knocking the film to shake off dust on the surface thereof, and the knocking rod (55) is arranged on the outer surface of the film; the filter cover (52) is fixedly connected to a bracket (57), and the bracket (57) is fixedly connected to a sliding rod (58) slidably connected to the lifting frame (56), and a spring (59) is connected to the surface of the sliding rod (58).

4. A modified PA6 composite film preparation device according to claim 3, characterized in that: The lifting frame (56) is connected with a pressing wheel (510) matched with the rotating wheel (511), and a concave groove (512) is provided on the surface of the rotating wheel (511). Each time the pressing wheel (510) rolls into the concave groove (512), the knocking rod (55) knocks the film once.

5. A modified PA6 composite film preparation device according to claim 4, characterized in that: The filter cover (52) is fixedly connected with a blocking cover (515) for preventing dust from spreading.

6. A modified PA6 composite film preparation device according to claim 5, characterized in that: The film supporting mechanism (4) comprises a fixed frame (41), a pair of sliders (43) are symmetrically slidably connected to the fixed frame (41), a sliding hole (44) is provided on the fixed frame (41) and is slidably connected to the sliders (43), and a supporting roller (410) is fixedly connected to the slider (43), a threaded rod (47) is rotatably connected to the fixed frame (41), a threaded block (45) is threadedly connected to the threaded rod (47), and a connecting rod (46) is rotatably connected between the threaded block (45) and the two sliders (43).

7. A modified PA6 composite film preparation device according to claim 6, characterized in that: The slider (43) is fixedly connected to a fixing rod (48), the blowing hood (51) is rotatably connected to the slider (43), and the blowing hood (51) is rotatably connected to a connecting rod (54), the connecting rod (54) is fixedly connected to the fixing rod (48) through a bolt assembly, and the fixing rod (48) is provided with a strip hole (49) that is matched with the bolt assembly; and both ends of the fixing frame (41) are connected to a pair of limiting rollers (42).

8. A modified PA6 composite film preparation device according to claim 7, characterized in that: The film feeding mechanism comprises a first frame (2), a pair of rotating rollers (21) are connected to the first frame (2), and a film reel (22) is rotatably connected to the rotating rollers (21).

9. A modified PA6 composite film preparation device according to claim 8, characterized in that: The film pressing mechanism comprises a second frame (3), a pair of film pressing rollers (31) are connected to the second frame (3), and a driving motor (32) is installed at one end of the film pressing roller (31).

10. The method for preparing a modified PA6 composite film according to claim 9, characterized in that: The following steps are involved: Step 1: Install two film rolls (22) on two rotating rollers (21) respectively, and correctly roll the film around the film supporting mechanism (4) and guide it between two film pressing rollers (31); Step 2: The driving motor (32) drives the two laminating rollers (31) to rotate, presses the two layers of film together, and drives the film reel (22) to rotate, driving the film to be transported forward; Step 3: During the film conveying process, the blowing cover (51) blows air to the inner surface of the film, and the dust on the inner surface is blown into the filter cover (52), and the dust is filtered by the filter cover (52); Step 4: At the same time, the blowing cover (51) blows the rotating blade (513) to rotate, driving the rotating wheel (511) to rotate, so that the pressing wheel (510) continuously rolls into the concave groove (512), thereby driving the knocking rod (55) to continuously knock the outer surface of the film to shake off the dust on the surface.

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