Stretching and static electricity removing device for transparent nylon film production

Abstract

The utility model discloses a stretching electrostatic eliminating device for transparent nylon film production. The stretching electrostatic eliminating device comprises a processing box, a high-voltage generator and a side plate, empty grooves are formed in the side edges of the machining box correspondingly, a positioning frame is arranged on one side of the bottom in the machining box, and a heating pipe is arranged at the top of the positioning frame. The high-pressure generator is arranged in the processing box; a heat treatment mechanism composed of the hot-air blower, the hot-air cavity and the hot-air nozzle is combined with the ionic wind bar to perform double static electricity removal treatment on the film, heat treatment increases dispersion of conductive particles through hot-air filling gaps to reduce surface resistivity, ionic wind generated by the ionic wind bar neutralizes static electricity, and the static electricity removal effect is improved through the synergistic effect of the heat treatment mechanism and the ionic wind bar. Static electricity on the surface of the thin film can be removed more thoroughly; through the matching design of the threaded rods in threaded connection with the side plates, the concave frames and the limiting rollers, the conveying path of the thin film is accurately controlled, the stability of the thin film in the machining process is guaranteed, and the situation that the static eliminating effect and the thin film quality are affected due to thin film deviation or wrinkles is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to transparent nylon film technical field, concretely is a transparent nylon film production stretch static electricity removing device. BACKGROUND

[0002] In recent years, plastic biaxially oriented nylon film (BOPA) is an important material for producing various composite packaging materials, and has become the third largest packaging material after biaxially oriented polypropylene film (BOPA) and biaxially oriented polyester film (BOPA). BOPA has excellent electrical insulation, and its surface resistivity can reach 10 14 ~ 10 15 Ω, therefore, BOPA is prone to static accumulation in production and application, which leads to easy adsorption of dust particles in the air, directly affecting the appearance and further processing of BOPA. Especially for downstream applications such as composite, printing and electronic packaging, which have adverse effects, thereby limiting the application range of BOPA.

[0003] The currently used additive antistatic agent on the market often migrates to the surface of the product, making the surface of the product hydrophilic under high humidity, thereby achieving the effect of antistatic. However, such antistatic agent is only effective in the short term, and only works under certain humidity. In addition, the physical properties and size of nylon film change greatly after absorbing moisture, which seriously affects the quality and use of the film. Such antistatic agent is not suitable for BOPA.

[0004] In the electronic field, antistatic transparent BOPA film can be used to manufacture electronic devices, touch screens, displays and solar cells, etc., with good conductivity and transparency, which can effectively suppress the generation and accumulation of static electricity. Secondly, in the optical field, antistatic transparent BOPA film can be used to prepare optical filters, lenses, anti-reflection coatings, etc., with excellent optical performance and antistatic properties. In addition, in the packaging field, antistatic transparent BOPA film can be used for packaging of food, medicine and electronic products to protect the products from static damage. With the continuous development of electronic, optical and packaging industries, the demand for antistatic transparent BOPA film will increase.

[0005] In the prior art, most of them only use a single static electricity removing method, such as relying only on ion wind stick or simple heating treatment, which cannot comprehensively and effectively remove the static electricity on the surface of the film. The single ion wind stick may have the problem of uneven coverage of ion wind, resulting in residual static electricity in some areas. If the temperature and time cannot be reasonably controlled in pure heating treatment, it is difficult to fully play the role of filling voids and increasing the dispersion of conductive particles, so as to effectively reduce the surface resistivity, so that the film is still prone to adsorbing dust particles during production, affecting its appearance and subsequent processing. In view of this, we introduce a transparent nylon film production stretch static electricity removing device. The utility model discloses a transparent nylon film production stretching static electricity removing device, to solve the problem of the above background art.

[0006] The utility model discloses a transparent nylon film production stretching static electricity removing device, to solve the problem of the above background art.

[0007] To realize above -mentioned purpose, the utility model provides the following technical scheme: a transparent nylon film production stretching static electricity removing device, include: processing box, high -voltage generator and side plate,

[0008] The side of the processing box is provided with a hollow groove, and the hollow groove and the processing box are integrally formed; a positioning frame is arranged on one side of the inner bottom of the processing box; a heating pipe is arranged on the top of the positioning frame; the heating pipe on the top of the positioning frame can provide additional heat when needed, assisting in adjusting the temperature environment in the processing box, ensuring that the entire processing process is carried out under suitable temperature conditions, and helping to improve the processing effect and quality of the film.

[0009] The high-voltage generator is arranged in the interior of the processing box and is connected to the interior of the processing box by bolts; an ion wind rod is arranged on the side of the high-voltage generator in the interior of the processing box.

[0010] The side plate is arranged on the side of the processing box and is welded between the processing box; a threaded rod is screwed in the interior of the side plate; the external thread part of the threaded rod is matched and screwed with the internal thread part in the interior of the side plate.

[0011] The interior of the processing box is provided with a heat treatment mechanism; the heat treatment mechanism comprises a hot air blower, a hot air cavity and a hot gas nozzle; the hot gas fills the gap and increases the dispersion of conductive particles.

[0012] Preferably, the heat treatment mechanism comprises a cylinder connected to the inner top wall of the processing box; the cylinder is connected to the inner top wall of the processing box by bolts; a wind collecting frame is connected to the output end of the cylinder; the hot air blower is connected to the side of the wind collecting frame and is connected to the side of the wind collecting frame by bolts; the hot air cavity is arranged in the interior of the wind collecting frame and is integrally formed between the wind collecting frame; a channel is arranged in the interior of the wind collecting frame between the hot air blower and the hot air cavity and is integrally formed between the channel and the wind collecting frame; the hot gas nozzle is arranged in the interior of the wind collecting frame and is located at the bottom of the hot air cavity; the hot gas nozzle is integrally formed between the wind collecting frame.

[0013] Preferably, the interior of the processing box is connected to the first static electricity removing roller, the second static electricity removing roller and the third static electricity removing roller at equal intervals; the first static electricity removing roller, the second static electricity removing roller and the third static electricity removing roller continuously perform preliminary static electricity removing treatment on the film during the film conveying process, and remove part of static electricity accumulated on the surface of the film in the previous production process.

[0014] Preferably, a pipeline is connected between the high-voltage generator and the ion wind stick, and an outlet is connected to an output end of the ion wind stick.

[0015] Preferably, a concave frame is connected to one end of the threaded rod penetrating through the side plate, bearings are connected between the connection between the concave frame and the threaded rod, and a limiting roller is connected inside the concave frame.

[0016] Preferably, a turntable is connected to the other end of the threaded rod penetrating through the side plate, and the turntable and the threaded rod are integrally formed.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] (1) The heat treatment mechanism composed of the hot air blower, the hot air cavity and the hot gas nozzle is combined with the ion wind stick to perform double electrostatic removal treatment on the film, the heat treatment reduces the surface resistivity by filling the gap with hot air to increase the dispersion of conductive particles, and the ion wind stick neutralizes static electricity by generating ion wind, so that the static electricity on the surface of the film can be more completely removed, and the problem of dust particles being adsorbed due to static electricity accumulation during the production of the transparent nylon film, affecting the appearance of the film and further processing and use, is effectively solved.

[0019] (2) The heat treatment mechanism not only helps to remove static electricity, but also enables the polyamino acid molecules to rearrange to form a more compact crystal structure, thereby improving the mechanical properties of the film, such as strength and toughness, and adjusting the softening temperature and fluidity of the film to optimize the processing performance of the film, making it more suitable for subsequent processing technology, and improving the overall quality and production efficiency of the film.

[0020] (3) Through the cooperation of the threaded rod screwed on the side plate and the concave frame and the limiting roller, the position of the limiting roller can be easily adjusted by rotating the turntable, so that the conveying path of the film can be accurately controlled, the stability of the film during processing is ensured, the influence of the electrostatic removal effect and the film quality due to the offset or wrinkles of the film is avoided, and the film at each position can be uniformly and effectively treated. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a structural schematic view of the present application;

[0022] Fig. 2 is a structural schematic view of the wind collecting frame side cut of the present application;

[0023] Fig. 3 is a structural schematic view of the connection of the limiting roller, the side plate and the threaded rod of the present application.

[0024] In the figure: 1, processing box; 2, side plate; 3, concave frame; 4, limiting roller; 5, threaded rod; 6, wind collecting frame; 7, hot air machine; 8, positioning frame; 9, first static electricity removing roller; 10, second static electricity removing roller; 11, third static electricity removing roller; 12, spray outlet; 13, ion wind rod; 14, pipeline; 15, high-voltage generator; 16, empty slot; 17, air cylinder; 18, channel; 19, hot air cavity; 20, hot gas spray head; 21, heating pipe; 22, rotating disc. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: a transparent nylon film production stretch static electricity removing device, comprising: processing box 1, the side of the processing box 1 is respectively provided with empty slot 16, the inside bottom of the processing box 1 is provided with positioning frame 8, the top of the positioning frame 8 is provided with heating pipe 21;

[0027] High-voltage generator 15, the high-voltage generator 15 is arranged in the inside of processing box 1, and the inside of processing box 1 is provided with ion wind rod 13 on the side of high-voltage generator 15;

[0028] Side plate 2, the side plate 2 is arranged in the side of processing box 1, and the inside of the side plate 2 is screwed with threaded rod 5;

[0029] The inside of the processing box 1 is provided with heat treatment mechanism, the cooperation of hot air machine 7, hot air cavity 19 and hot gas spray head 20 of the heat treatment mechanism is used to make hot gas fill gap and increase the dispersion of conductive particles.

[0030] The heat treatment mechanism includes air cylinder 17 connected to the inner top wall in the processing box 1, the air cylinder 17 is connected to the inner top wall of the processing box 1 by bolt, the output end of the air cylinder 17 is connected with wind collecting frame 6, the hot air machine 7 is connected to the side of wind collecting frame 6, the hot air machine 7 is connected to the side of wind collecting frame 6 by bolt, the hot air cavity 19 is arranged in the inside of wind collecting frame 6, and wind collecting frame 6 and hot air cavity 19 are integrally formed, the inside of wind collecting frame 6 is provided with channel 18 between hot air machine 7 and hot air cavity 19, and channel 18 and wind collecting frame 6 are integrally formed, and hot gas spray head 20 is arranged in the inside of wind collecting frame 6 and located at the bottom of hot air cavity 19, and hot gas spray head 20 and wind collecting frame 6 are integrally formed.

[0031] The first, second and third static electricity removing rollers 9, 10 and 11 are equidistantly connected inside the processing box 1, and continuously perform preliminary static electricity removing treatment on the film during the film conveying process to remove part of static electricity accumulated on the surface of the film in the previous production process.

[0032] The high-voltage generator 15 is connected with the ion wind rod 13 through the pipeline 14, and the output end of the ion wind rod 13 is connected with the spray outlet 12.

[0033] One end of the threaded rod 5 is connected with the concave frame 3 after penetrating through the side plate 2, and the bearing is connected between the concave frame 3 and the threaded rod 5, and the limiting roller 4 is connected inside the concave frame 3 and can rotate inside the concave frame 3.

[0034] The other end of the threaded rod 5 is connected with the rotating disc 22 after penetrating through the side plate 2, and the rotating disc 22 and the threaded rod 5 are integrally formed.

[0035] Specifically, in use, the transparent nylon film enters from the side slot 16 of the processing box 1, bypasses the first, second and third static electricity removing rollers 9, 10 and 11 arranged inside the processing box 1, and the first, second and third static electricity removing rollers 9, 10 and 11 continuously perform preliminary static electricity removing treatment on the film during the film conveying process to remove part of static electricity accumulated on the surface of the film in the previous production process, the rotating disc 22 is rotated to drive the threaded rod 5 to rotate, and since the threaded rod 5 is screwed with the side plate 2, the threaded rod 5 moves horizontally in the side plate 2, and the concave frame 3 connected with one end of the threaded rod 5 and the limiting roller 4 inside the concave frame 3 move accordingly, the position of the limiting roller 4 can be adjusted to accurately position the conveying path of the film, and the film can always be kept in the appropriate position during the processing process to avoid film deviation or wrinkles.

[0036] Then the hot air blower 7 is started, the external air is sucked into the hot air blower 7, the air is heated by the hot air blower 7, the hot air enters the hot air cavity 19 through the channel 18, at the same time, the air cylinder 17 is started to push the air collecting frame 6 to move downward, so that the hot air nozzle 20 is close to the film, the hot air is sprayed from the hot air nozzle 20 and uniformly blows to the surface of the film, the hot air fills the internal gap of the film, promotes the rearrangement of the polyurea molecules in the crystallization process, forms a more compact crystal structure, improves the mechanical properties of the film, at the same time increases the dispersion of the conductive particles, reduces the surface resistivity of the film, thereby improves the conductive performance, and effectively removes the static electricity on the film.

[0037] At this time, the high-voltage generator 15 generates high-voltage static electricity, which is transmitted to the ion wind rod 13 through the pipeline 14. The electrode inside the ion wind rod 13 ionizes the air under the action of high voltage, generating a large number of positive and negative ions. These positive and negative ions are blown out from the nozzle 12 to form an ion wind, which blows towards the surface of the film. The static electricity on the surface of the film will neutralize the opposite ions in the ion wind, further removing the residual static electricity on the film, and ensuring that the static electricity on the surface of the film is completely eliminated.

[0038] At the same time, the heating pipe 21 at the top of the positioning frame 8 can provide additional heat when needed, assisting in adjusting the temperature environment inside the processing box 1, ensuring that the entire processing process is carried out under suitable temperature conditions, which helps to improve the processing effect and quality of the film.

[0039] And the static performance: surface resistivity <10 12 Ω; charge discharge time <1s;

[0040] Transparency > 90%.

[0041] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for stretching and eliminating static electricity in the production of transparent nylon film, characterized in that, Include: Processing box (1), the side of the processing box (1) is respectively provided with a groove (16), and the inside bottom of the processing box (1) is provided with a positioning frame (8), and the top of the positioning frame (8) is provided with a heating pipe (21); High-voltage generator (15), the high-voltage generator (15) is arranged in the inside of the processing box (1), and the inside of the processing box (1) is provided with an ion wind rod (13) on the side of the high-voltage generator (15); Side plate (2), the side plate (2) is arranged on the side of the processing box (1), and the inside of the side plate (2) is screwed with a threaded rod (5); The inside of the processing box (1) is provided with a heat treatment mechanism, the heat treatment mechanism is used by the cooperation of the hot air blower (7), the hot air cavity (19) and the hot gas nozzle (20), so that the hot gas fills the gap and increases the dispersion of conductive particles.

2. The device for removing static electricity according to claim 1, wherein The heat treatment mechanism includes a cylinder (17) connected to the inner top wall of the processing box (1), an air collecting frame (6) connected to the output end of the cylinder (17), a hot air blower (7) connected to the side of the air collecting frame (6), a hot air cavity (19) opened in the inside of the air collecting frame (6), a channel (18) provided between the hot air blower (7) and the hot air cavity (19) in the inside of the air collecting frame (6), and a hot gas nozzle (20) opened in the inside of the air collecting frame (6) and located at the bottom of the hot air cavity (19).

3. The device for removing static electricity according to claim 1, wherein The inside of the processing box (1) is connected with first, second and third static electricity removing rollers (9, 10 and 11) at equal intervals.

4. The device for removing static electricity according to claim 1, wherein The high-voltage generator (15) and the ion wind rod (13) are connected by a pipeline (14), and the output end of the ion wind rod (13) is connected with a spray outlet (12).

5. The device for removing static electricity according to claim 1, wherein One end of the threaded rod (5) penetrates through the side plate (2) and is connected with a concave frame (3), and the inside of the concave frame (3) is connected with a limiting roller (4).

6. The device for stretching and removing static electricity from a transparent nylon film according to claim 5, wherein The other end of the threaded rod (5) penetrates through the side plate (2) and is connected with a rotating disc (22).

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