Conveying equipment for corona-resistant polyimide film

Abstract

The utility model discloses conveying equipment for corona-resistant polyimide films, which relates to the technical field of polyimide film conveying equipment and comprises a support frame, a material roller is rotatably arranged at the left end of the support frame, a wind-up roller is rotatably arranged at the right end of the support frame, and positioning pieces are arranged on raised rod body parts on the surface of the support frame. A tensioning mechanism is installed on the left side of the upper portion of the surface of the supporting frame, adsorption mechanisms are arranged in the middles of two adjacent protruding rod bodies on the right side of the surface of the supporting frame, the positioning piece comprises two rotating rods rotationally arranged in the middle of the opposite side of each protruding rod body on the surface of the supporting frame, and positioning rollers are fixedly arranged in the middles of the surfaces of the rotating rods; and a silicon rubber sleeve is fixedly mounted on the surface of the positioning roller. Compared with existing common polyimide film conveying equipment, the conveying equipment for the corona-resistant polyimide film can be flexibly adjusted according to the redundant length of the conveying stroke of the film, so that the film is conveyed in a tight state all the time, and the film is prevented from wrinkling.

Description

Technical Field

[0001] The utility model relates to the technical field of polyimide film conveying equipment, in particular to a conveying equipment for corona-resistant polyimide films. Background Art

[0002] Polyimide film is one of the earliest products of polyimide, used for slot insulation of motors and cable wrapping materials. The polyamide acid solution is cast into film, stretched, and imidized at high temperature. The film is yellow and transparent, with a relative density of 1.39 to 1.45. It has outstanding high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation properties, and can be used for a long time in air at 250 to 280°C. The glass transition temperatures are 280°C, 385°C and above 500°C respectively. The tensile strength is 200MPa at 20°C and greater than 100MPa at 200°C. It is particularly suitable for use as a flexible printed circuit board substrate and various high-temperature resistant motor and electrical insulation materials.

[0003] For example, the public document with application number 201420610475.8 discloses a film conveying device for an imidization furnace for producing polyimide films. The utility model provides a new method for conveying films in the imidization furnace, which can make the film heated more evenly and improve the effect of high-temperature imidization. The device has a relatively simple structural design and low cost. However, when the polyimide film is conveyed by the polyimide film conveying device, redundant sections will appear in the film, causing the film to sink. It is difficult to adjust the tension of the film according to the degree of redundancy generated during the film conveying. Redundant and loose films may fall off, deflect, and wrinkle during conveyance, affecting the film conveying quality.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a conveying device for corona-resistant polyimide film is proposed. Utility Model Content

[0005] The utility model aims to provide a conveying device for a corona-resistant polyimide film to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conveying device for corona-resistant polyimide film, comprising a support frame, a material roller is rotatably provided at the left end of the support frame, a winding roller is rotatably provided at the right end of the support frame, positioning pieces are provided at the raised rod parts on the surface of the support frame, a tensioning mechanism is installed on the left side above the surface of the support frame, and an adsorption mechanism is provided in the middle of two adjacent raised rods on the right side of the surface of the support frame.

[0007] Preferably, the positioning member comprises two rotating rods rotatably arranged in the middle of opposite sides of each raised rod body on the surface of the support frame, a positioning roller is fixedly arranged in the middle of the surface of the rotating rod, and a silicone sleeve is fixedly installed on the surface of the positioning roller.

[0008] Preferably, the tensioning mechanism comprises two support rods fixedly mounted on the front and rear sides above the surface of the support frame, the inner surfaces of the support rods are respectively provided with screw rods and guide rods, the screw rods are rotatably connected to the support rods, and the guide rods are fixedly connected to the support rods.

[0009] Preferably, the tensioning mechanism also includes an adjustment plate provided on the surface of the screw rod and the guide rod, the adjustment plate is threadedly connected to the screw rod and slidably connected to the guide rod, and the same movable roller is rotatably installed in the middle of one side of the surface of the adjustment plate.

[0010] Preferably, the adsorption mechanism includes a connecting frame fixedly installed in the middle of two adjacent raised rods on the right side of the supporting frame, a positive plate is fixedly installed on the opposite side of the middle of the surface of the connecting frame, and a horizontal plate is fixedly installed on the upper and lower ends of the opposite side of the surface of the connecting frame.

[0011] Preferably, the adsorption mechanism further comprises a grille opening on the opposite side of the transverse plate surface, a small hot air blower is fixedly provided on the opposite side of the outer surface of the transverse plate, and a corona ring is fixedly installed on the inner surface of the transverse plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model not only prevents the film from deflecting and loosening through the arrangement of the positioning piece, the rotating rod, the positioning roller and the silicone sleeve, thereby ensuring the stability of the film transportation and preventing scratches and damages, but also can absorb part of the dust on the surface of the film, ensuring that the polyimide film remains clean during transportation;

[0014] 2. The utility model adjusts the tension of the film by setting the tensioning mechanism, support rod, screw rod, guide rod, adjustment plate and movable roller, and can flexibly adjust the film according to the redundant length of the film conveying stroke, so that the film is always kept in a taut state for conveying, and the film is prevented from wrinkling;

[0015] 3. The utility model is provided with an adsorption mechanism, a connecting frame, a positive plate, a horizontal plate, a grille opening, a small hot air blower and a corona ring. The corona ring generates an electrostatic field in the air, and the gas is ionized by the electrostatic field so that the dust particles are charged and adsorbed onto the positive plate for dust collection, thereby ensuring that the dust around the polyimide film can be effectively removed, and further improving the cleanliness of the film when it is rolled up at the end of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the adsorption mechanism of the utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the tensioning mechanism of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the positioning member of the utility model.

[0020] In the figure: 1. Support frame; 2. Material roller; 3. Winding roller; 4. Positioning piece; 401. Rotating rod; 402. Positioning roller; 403. Silicone sleeve; 5. Tensioning mechanism; 501. Support rod; 502. Screw rod; 503. Guide rod; 504. Adjusting plate; 505. Movable roller; 6. Adsorption mechanism; 601. Connecting frame; 602. Positive plate; 603. Horizontal plate; 604. Grille opening; 605. Small hot air blower; 606. Corona ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 4 As shown, a conveying device for corona-resistant polyimide film includes a support frame 1, a material roller 2 is rotatably provided at the left end of the support frame 1, a winding roller 3 is rotatably provided at the right end of the support frame 1, positioning members 4 are provided at the raised rod parts on the surface of the support frame 1, a tensioning mechanism 5 is installed on the left side above the surface of the support frame 1, and an adsorption mechanism 6 is provided in the middle of two adjacent raised rods on the right side of the surface of the support frame 1.

[0023] By adopting the above technical solution, the film to be conveyed is wound around the surface of the material roller 2, and one end of the film is guided through a specific path and wound around the surface of the winding roller 3. The winding roller 3 is driven to rotate by a motor, thereby continuously pulling the film for winding, so that the film at one end of the material roller 2 moves.

[0024] Furthermore, the positioning member 4 includes two rotating rods 401 rotatably arranged in the middle of each protruding rod body on the surface of the support frame 1 on one side, a positioning roller 402 is fixedly arranged in the middle of the surface of the rotating rod 401, and a silicone sleeve 403 is fixedly installed on the surface of the positioning roller 402.

[0025] By adopting the above technical solution, the film passes through the middle of the positioning roller 402, and the positioning roller 402 limits the upper and lower sides of the film to prevent the film from deviating and loosening; the silicone sleeve 403 on the surface of the positioning roller 402 preferentially contacts the surface of the film and absorbs part of the dust on the surface of the film, ensuring that the polyimide film remains clean during transportation.

[0026] Furthermore, the tensioning mechanism 5 includes two support rods 501 fixedly installed on the front and rear sides above the surface of the support frame 1, and the inner surfaces of the support rods 501 are respectively provided with screw rods 502 and guide rods 503, the screw rods 502 are rotatably connected to the support rods 501, and the guide rods 503 are fixedly connected to the support rods 501.

[0027] By adopting the above technical solution, the screw rod 502 can rotate, and the guide rod 503 is a fixed rod body.

[0028] Furthermore, the tensioning mechanism 5 also includes an adjustment plate 504 provided on the surface of the screw rod 502 and the guide rod 503. The adjustment plate 504 is threadedly connected to the screw rod 502 and slidingly connected to the guide rod 503. The same movable roller 505 is rotatably installed in the middle of the opposite side of the surface of the adjustment plate 504.

[0029] By adopting the above technical solution, the film is wrapped around the surface of the movable roller 505 during transportation; the adjustment plate 504 and the movable roller 505 form a common whole, and the guide rod 503 can limit the front adjustment plate 504, causing the screw rod 502 to rotate, and the adjustment plate 504 can drive the movable roller 505 to move up and down synchronously to adjust the tension of the film.

[0030] Furthermore, the adsorption mechanism 6 includes a connecting frame 601 fixedly installed in the middle of two adjacent raised rods on the right side of the support frame 1, a positive plate 602 is fixedly installed on the opposite side of the middle of the surface of the connecting frame 601, and a horizontal plate 603 is fixedly installed on the upper and lower ends of the opposite side of the surface of the connecting frame 601.

[0031] By adopting the above technical solution, the positive plate 602 can absorb dust with electric charge.

[0032] Furthermore, the adsorption mechanism 6 also includes a grille opening 604 opened on the opposite side of the surface of the horizontal plate 603 , a small hot air blower 605 is fixedly installed on the opposite side of the outer surface of the horizontal plate 603 , and a corona ring 606 is fixedly installed on the inner surface of the horizontal plate 603 .

[0033] By adopting the above technical solution, the corona ring 606 can be energized to generate an electrostatic field, and the electrostatic field is used to ionize the gas so that the dust particles are charged; the small hot air blower 605 ensures the dryness of the electrostatic field, increases the dust adsorption capacity, and increases the fluidity of the airflow, which can increase the dust adsorption effect when in use.

[0034] Working principle: When using the conveying equipment for corona-resistant polyimide film, first, guide the film through the middle of the positioning roller 402, wrap it from the top of the active roller 505, and finally wrap it around the surface of the winding roller 3. The winding roller 3 is rotated by a motor, which will continuously pull the film on the surface of the material roller 2 for conveying. The positioning roller 402 limits the upper and lower sides of the film to prevent the film from deviating and loosening. The silicone sleeve 403 on the surface of the positioning roller 402 preferentially contacts the surface of the film and absorbs part of the dust on the surface of the film, ensuring that the polyimide film remains clean during transportation. At the same time, according to the conveying distance of the film and the redundant length of the film, the rotating wire Rod 502, under the limitation of guide rod 503, movable roller 505 and adjustment plate 504 form a whole, which will move up and down, so as to adjust the tension of the film. Before the film is finally wound, a small hot air blower 605 blows hot air to the middle of the horizontal plate 603 through the grille opening 604 to heat the surrounding air and keep the dust in the air dry. The corona ring 606 is used to generate an electrostatic field in the air, and the gas is ionized by the electrostatic field so that the dust particles are charged and adsorbed on the positive plate 602 for dust collection, thereby further ensuring that the dust around the polyimide film can be effectively removed. This is the working principle of the conveying equipment for corona-resistant polyimide film.

Claims

1. A conveying device for corona-resistant polyimide film, comprising a support frame (1), characterized in that: A material roller (2) is rotatably provided at the left end of the support frame (1), a winding roller (3) is rotatably provided at the right end of the support frame (1), positioning members (4) are provided at the protruding rod parts on the surface of the support frame (1), a tensioning mechanism (5) is installed on the left side above the surface of the support frame (1), and an adsorption mechanism (6) is provided in the middle of two adjacent protruding rod parts on the right side of the surface of the support frame (1).

2. The conveying device for corona-resistant polyimide film according to claim 1, characterized in that: The positioning member (4) comprises two rotating rods (401) rotatably arranged in the middle of opposite sides of each protruding rod body on the surface of the support frame (1), a positioning roller (402) is fixedly arranged in the middle of the surface of the rotating rod (401), and a silicone sleeve (403) is fixedly installed on the surface of the positioning roller (402).

3. The conveying device for corona-resistant polyimide film according to claim 1, characterized in that: The tensioning mechanism (5) comprises two support rods (501) fixedly mounted on the front and rear sides above the surface of the support frame (1); a screw rod (502) and a guide rod (503) are respectively arranged on the inner surfaces of the support rods (501); the screw rod (502) is rotatably connected to the support rod (501); and the guide rod (503) is fixedly connected to the support rod (501).

4. The conveying device for corona-resistant polyimide film according to claim 1, characterized in that: The tensioning mechanism (5) further comprises an adjustment plate (504) provided on the surface of the screw rod (502) and the guide rod (503); the adjustment plate (504) is threadedly connected to the screw rod (502) and slidably connected to the guide rod (503); and a same movable roller (505) is rotatably mounted on the middle of one side of the surface of the adjustment plate (504).

5. The conveying device for corona-resistant polyimide film according to claim 1, characterized in that: The adsorption mechanism (6) comprises a connecting frame (601) fixedly mounted in the middle of two adjacent raised rods on the right side of the support frame (1), a positive plate (602) is fixedly mounted on one side of the middle of the surface of the connecting frame (601), and a transverse plate (603) is fixedly mounted on the upper and lower ends of the surface of the connecting frame (601).

6. The conveying device for corona-resistant polyimide film according to claim 1, characterized in that: The adsorption mechanism (6) further comprises a grille opening (604) provided on the opposite side of the surface of the horizontal plate (603), a small hot air blower (605) is fixedly provided on the opposite side of the outer surface of the horizontal plate (603), and a corona ring (606) is fixedly installed on the inner surface of the horizontal plate (603).

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