Traction device of plastic film blowing machine

Abstract

The utility model relates to the technical field of plastic film production, and discloses a traction device of a plastic film blow molding machine, which comprises a device base, blow molding equipment, a support frame I, a cooling mechanism, a support frame II, a motor I, a traction roller, a guide roller and a cleaning component, first supporting frames and second supporting frames are installed on the top of the device base and located at the front end and the rear end of the blow molding equipment, the cooling mechanism is arranged on the side faces of the two first supporting frames, a first motor is fixedly installed on the outer side of the second supporting frame at the front end, a traction roller is fixedly installed on an output shaft of the first motor, and guide rollers are movably connected to the inner sides of the two second supporting frames. The cleaning assemblies are arranged on the side faces of the two second supporting frames, dust, impurities and other foreign matter adsorbed to the surface of the thin film can be effectively cleaned through the cleaning assemblies, the foreign matter is effectively prevented from affecting the appearance quality of the thin film, and adverse effects on subsequent machining and using are avoided.

Description

Technical Field

[0001] This utility model relates to the field of plastic film production technology, and more specifically to a traction device for a plastic film blow molding machine. Background Technology

[0002] Plastic film refers to films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins. Plastic packaging and plastic packaging products are taking up an increasingly larger share of the market, especially composite plastic flexible packaging, which has been widely used in food, medicine, chemical and other fields. Among them, food packaging accounts for the largest proportion, such as beverage packaging, frozen food packaging, retortable food packaging, fast food packaging, etc. These products have brought great convenience to people's lives. Plastic film requires blow molding traction devices to pull and roll up plastic film during processing and production.

[0003] Chinese utility model patent CN220784862U discloses a plastic film blow molding traction device, including a support plate with support legs installed at the four corners of the bottom of the support plate. A blow molding machine is installed at the center of the top of the support plate, and a feed pipe is installed at the top right end of the support plate. A connecting pipe is provided between the blow molding machine and the feed pipe, and a feed funnel is connected to the upper end of the feed pipe. This plastic film blow molding traction device allows cold air to be discharged through cold air holes as the plastic film passes between two sets of rotating rollers after blow molding, enabling rapid cooling and shaping, preventing the plastic film from sticking and avoiding damage. The cooled plastic film adheres tightly to the outer surface of the flattening roller, which acts as a pressure limiter, reducing wrinkles and improving production quality. A second drive motor is activated to rotate the traction roller, ensuring uniform and stable traction force, thereby realizing the traction and winding operation of the plastic film.

[0004] The above technical solution has the following problems: During the production process of plastic film blow molding machine, the film surface is prone to adsorbing foreign objects such as dust and impurities. These foreign objects not only affect the appearance quality of the film, but may also have adverse effects on subsequent processing and use. For example, during the film winding process, if there are foreign objects between the films, it may cause uneven local stress on the film, increasing the risk of film breakage. Moreover, once the film is broken due to foreign objects, it will not only cause damage to individual films, but may also affect the entire batch of films due to the chain reaction in the continuous production process, ultimately leading to the scrapping of the entire batch of products. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a traction device for a plastic film blow molding machine to solve the problem that the film surface is prone to adsorbing dust, impurities and other foreign objects.

[0006] This utility model provides the following technical solution:

[0007] A traction device for a plastic film blow molding machine includes a base, a blow molding machine, a first support frame, a cooling mechanism, a second support frame, a first motor, a traction roller, a guide roller, and a cleaning component. The blow molding machine is mounted on the top of the base. The first and second support frames are installed on the top of the base and at both the front and rear ends of the blow molding machine. The cooling mechanism is located on the sides of the two sets of first support frames. A first motor is fixedly mounted on the outer side of the front second support frame. A traction roller is fixedly mounted on the output shaft of the first motor. Guide rollers are movably connected to the inner sides of the two sets of second support frames, and multiple sets of guide rollers are arranged alternately. The cleaning component is located on the sides of the two sets of second support frames.

[0008] Furthermore, the cooling mechanism includes a mounting frame. A mounting frame is fixedly installed on the outer side of the front support frame one. A motor two is fixedly installed on the inner wall of the mounting frame. A rotating roller one is fixedly installed on the output shaft of the motor two. A driving gear is fixedly installed on the outer side of the rotating roller one. A driven gear meshes with the surface of the driving gear. A rotating roller two is fixedly installed inside the driven gear. The rotating roller one and the rotating roller two are movably connected to the inner side of the top of the two sets of support frames one.

[0009] Furthermore, a cold air fan is fixedly installed on the outer side of the support frame one at the rear end. Both the rotating roller one and the rotating roller two are made of hollow stainless steel. The rear ends of the rotating roller one and the rotating roller two are connected to the air outlet of the cold air fan. Several cold air holes are opened on the outer wall of the rotating roller one and the rotating roller two.

[0010] Furthermore, the cleaning component includes a movable groove, and the inner sides of both sets of support frames are provided with movable grooves. A spring is fixedly installed inside the movable groove, and a movable plate is fixedly connected to the top of the spring. A brush is fixedly installed on the top of the movable plate.

[0011] Furthermore, a limiting rod is fixedly installed inside the movable groove, and the limiting rod is slidably connected to the movable plate.

[0012] Furthermore, a vacuum cleaner is fixedly installed at the bottom of the device base, and a connecting pipe is fixedly connected to the suction end of the vacuum cleaner. A suction hood is fixedly connected to the top of the connecting pipe. Two sets of suction hoods are provided, and the two sets of suction hoods are located on the left and right sides below the brush.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model effectively cleans dust, impurities, and other foreign objects adsorbed on the film surface using a cleaning component. A brush removes these adsorbed particles, while a spring keeps the brush firmly attached to the film surface, allowing it to adapt to the contours of the traction roller. A vacuum cleaner is then driven to suck the cleaned foreign objects from the suction hood and into the vacuum cleaner via a connecting pipe, preventing them from re-adsorbing onto the film surface. Compared to traditional blow molding machine traction devices, this traction device cleans the film during the traction process, effectively preventing foreign objects from affecting the film's appearance and avoiding adverse effects on subsequent processing and use.

[0015] 2. This utility model, through the combined use of a cooling mechanism and multiple sets of guide rollers, enables the film to be cooled and shaped quickly, preventing the film from sticking together. By driving a cold air blower, cold air can enter the rotating roller one and rotating roller two, and then be discharged through the cold air hole, effectively contacting the film and enabling the film to be cooled and shaped quickly, greatly improving the film production efficiency. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0018] Figure 3 This is a cross-sectional structural diagram of the support frame and the mounting frame of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the support frame II of this utility model.

[0020] The attached figures are labeled as follows: 1. Device base; 2. Blow molding equipment; 3. Support frame one; 4. Cooling mechanism; 401. Mounting frame; 402. Motor two; 403. Rotating roller one; 404. Drive gear; 405. Driven gear; 406. Rotating roller two; 407. Air cooler; 408. Air vent; 5. Support frame two; 6. Motor one; 7. Traction roller; 8. Guide roller; 9. Cleaning assembly; 901. Movable groove; 902. Spring; 903. Movable plate; 904. Brush; 905. Limiting rod; 906. Vacuum cleaner; 907. Connecting pipe; 908. Vacuum hood. Detailed Implementation

[0021] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0022] Figures 1-4 This is the preferred embodiment of the present invention, as described below with reference to the accompanying drawings. Figures 1-4 The present invention will be further described below.

[0023] A traction device for a plastic film blow molding machine includes a base 1, a blow molding device 2, a first support frame 3, a cooling mechanism 4, a second support frame 5, a first motor 6, a traction roller 7, a guide roller 8, and a cleaning component 9. The blow molding device 2 is mounted on the top of the base 1. The first support frame 3 and the second support frame 5 are mounted on the top of the base 1 and at both the front and rear ends of the blow molding device 2. The cooling mechanism 4 is located on the sides of the two sets of first support frames 3. The first motor 6 is fixedly mounted on the outer side of the front second support frame 5. The output shaft of the first motor 6 is fixedly mounted with the traction roller 7. The guide rollers 8 are movably connected to the inner sides of the two sets of second support frames 25. Multiple sets of guide rollers 8 are arranged alternately. The cleaning component 9 is located on the sides of the two sets of second support frames 25.

[0024] The blow molding equipment 2 includes a blow molding machine, a feed pipe, and a connecting pipe. The functional principles and relative positions of each structure are existing technologies. For details, please refer to the announcement number CN220784862U, "A Plastic Film Blow Molding Traction Device". It will not be elaborated here.

[0025] Blow molding equipment 2, motor 2 402, air cooler 407, motor 1 6 and vacuum cleaner 906 are electrically connected to an external power supply and an external controller. The controller can control the switching on and off of blow molding equipment 2, motor 2 402, air cooler 407, motor 1 6 and vacuum cleaner 906 respectively.

[0026] Specifically, the cooling mechanism 4 includes a mounting bracket 401. The mounting bracket 401 is fixedly mounted on the outer side of the front support bracket 3. The second motor 402 is fixedly mounted on the inner wall of the mounting bracket 401. The output shaft of the second motor 402 is fixedly mounted with a rotating roller 403. The outer side of the rotating roller 403 is fixedly mounted with a drive gear 404. The surface of the drive gear 404 is meshed with a driven gear 405. The inside of the driven gear 405 is fixedly mounted with a rotating roller 406. The rotating roller 403 and the rotating roller 406 are movably connected to the inner side of the top of the two sets of support brackets 3.

[0027] In this embodiment, the second drive motor 402 can drive the first rotating roller 403 and the driving gear 404 to rotate. Under the meshing transmission of the gears, the driven gear 405 drives the second rotating roller 406 to rotate in the same frequency in the opposite direction as the first rotating roller 403, so that the cooling effect is more uniform.

[0028] Specifically, a cooler 407 is fixedly installed on the outer side of the rear support frame 3. The rotating roller 1 403 and the rotating roller 2 406 are both made of hollow stainless steel. The rear ends of the rotating roller 1 403 and the rotating roller 2 406 are connected to the air outlet of the cooler 407. Several cold air holes 408 are opened on the outer wall of the rotating roller 1 403 and the rotating roller 2 406.

[0029] In this embodiment, the cooling fan 407 drives the cooling air to enter the interior of the rotating roller 1 403 and rotating roller 2 406, and then discharges it through the cooling air hole 408, thereby allowing the film in contact with the rotating roller 1 403 and rotating roller 2 406 to be cooled and shaped quickly.

[0030] Specifically, the cleaning component 9 includes a movable slot 901. The inner sides of both sets of support frames 5 are provided with movable slots 901. A spring 902 is fixedly installed inside the movable slot 901. A movable plate 903 is fixedly connected to the top of the spring 902. A brush 904 is fixedly installed on the top of the movable plate 903.

[0031] In this embodiment, the brush 904 can clean the dust, impurities and other foreign objects adsorbed on the film surface. At the same time, the spring 902 can move the brush 904 up and down, so that the brush 904 is in close contact with the film surface and adapts to the surface contour of the traction roller 7.

[0032] Specifically, a limit rod 905 is fixedly installed inside the movable groove 901, and the limit rod 905 is slidably connected to the movable plate 903.

[0033] In this embodiment, when the movable plate 903 moves up and down, it can slide on the surface of the limiting rod 905, which can play a limiting role.

[0034] Specifically, a vacuum cleaner 906 is fixedly installed at the bottom of the device base 1. A connecting pipe 907 is fixedly connected to the suction end of the vacuum cleaner 906. A vacuum hood 908 is fixedly connected to the top of the connecting pipe 907. Two sets of vacuum hoods 908 are provided, and the two sets of vacuum hoods 908 are located on the left and right sides below the brush 904.

[0035] In this embodiment, the vacuum cleaner 906 can suck up the cleaned foreign objects from the vacuum hood 908 and then send them into the vacuum cleaner 906 through the connecting pipe 907, thus preventing the foreign objects from being re-adsorbed onto the film surface.

[0036] The working principle and usage process of this utility model are as follows: During use, when the film is being pulled, one end of the film is fixed to the surface of the traction roller 7. The drive motor 6 drives the traction roller 7 to rotate, thus pulling the film. During the pulling process, the film first contacts the rotating roller 403 and the rotating roller 406. The drive motor 402 drives the rotating roller 403 and the driving gear 404 to rotate. Under the meshing transmission of the gears, the driven gear 405 drives the rotating roller 406 to rotate in the same frequency relative to the rotating roller 403. This not only guides the film but also simultaneously drives the cooling fan 407, allowing cold air to enter the rotating rollers 403 and 406 and then exit through the cooling air hole 408, thereby... The film in contact with the rotating roller 403 and the rotating roller 406 can be quickly cooled and shaped. Under the staggered guidance of multiple sets of guide rollers 8, the film can be cooled again and can also be used to smooth the film. Finally, the film will come into contact with the brush 904, which will clean the dust, impurities and other foreign objects adsorbed on the film surface. At the same time, the vacuum cleaner 906 is driven to suck the cleaned foreign objects from the vacuum hood 908 and send them into the vacuum cleaner 906 through the connecting pipe 907, so as to prevent foreign objects from being adsorbed on the film surface again. Compared with the traditional blow molding machine traction device, the traction device of this application can clean the film during the traction process, which can effectively prevent foreign objects from affecting the appearance quality of the film and avoid adverse effects on subsequent processing and use.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A traction device for a plastic film blow molding machine, comprising a device base (1), characterized in that: It also includes a blow molding device (2), a support frame one (3), a cooling mechanism (4), a support frame two (5), a motor one (6), a traction roller (7), a guide roller (8), and a cleaning component (9). The blow molding device (2) is located on the top of the device base (1). The support frame one (3) and the support frame two (5) are installed on the top of the device base (1) and at both the front and rear ends of the blow molding device (2). The cooling mechanism (4) is located on the sides of the two sets of support frames one (3). The motor one (6) is fixedly installed on the outer side of the front support frame two (5). The output shaft of the motor one (6) is fixedly installed with a traction roller (7). The inner sides of the two sets of support frames two (5) are movably connected with guide rollers (8). Multiple sets of guide rollers (8) are arranged alternately. The cleaning component (9) is located on the sides of the two sets of support frames two (5).

2. The traction device for a plastic film blow molding machine according to claim 1, characterized in that: The cooling mechanism (4) includes a mounting frame (401). The mounting frame (401) is fixedly installed on the outer side of the front support frame (3). The second motor (402) is fixedly installed on the inner wall of the mounting frame (401). The output shaft of the second motor (402) is fixedly installed with a rotating roller (403). The outer side of the rotating roller (403) is fixedly installed with a drive gear (404). The surface of the drive gear (404) is meshed with a driven gear (405). The inside of the driven gear (405) is fixedly installed with a rotating roller (406). The rotating roller (403) and the rotating roller (406) are movably connected to the inner side of the top of the two sets of support frames (3).

3. The traction device for a plastic film blow molding machine according to claim 2, characterized in that: A cooler (407) is fixedly installed on the outer side of the support frame 1 (3) at the rear end. The rotating roller 1 (403) and the rotating roller 2 (406) are both made of hollow stainless steel. The rear ends of the rotating roller 1 (403) and the rotating roller 2 (406) are connected to the air outlet of the cooler (407). The outer walls of the rotating roller 1 (403) and the rotating roller 2 (406) are provided with several air holes (408).

4. The traction device for a plastic film blow molding machine according to claim 1, characterized in that: The cleaning component (9) includes a movable groove (901). The inner sides of the two sets of support frames (5) are provided with movable grooves (901). A spring (902) is fixedly installed inside the movable groove (901). A movable plate (903) is fixedly connected to the top of the spring (902). A brush (904) is fixedly installed on the top of the movable plate (903).

5. The traction device for a plastic film blow molding machine according to claim 4, characterized in that: A limiting rod (905) is fixedly installed inside the movable groove (901), and the limiting rod (905) is slidably connected to the movable plate (903).

6. The traction device for a plastic film blow molding machine according to claim 4, characterized in that: A vacuum cleaner (906) is fixedly installed at the bottom of the device base (1). A connecting pipe (907) is fixedly connected to the suction end of the vacuum cleaner (906). A vacuum hood (908) is fixedly connected to the top of the connecting pipe (907). Two sets of vacuum hoods (908) are provided, and the two sets of vacuum hoods (908) are located on the left and right sides below the brush (904).

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