Energy-saving and environment-friendly blade coating device for preparing PVC blown film

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) blown film preparation, and particularly discloses an energy-saving and environment-friendly type blade coating device for PVC blown film preparation, which comprises a bottom plate, a slicking assembly is mounted above the bottom plate and used for slicking a PVC film, the slicking assembly is used for slicking wrinkles of the PVC film, and the PVC film is provided with an energy-saving and environment-friendly type blade coating device for PVC blown film preparation. And the auxiliary assembly is installed below the slicking assembly and used for tensioning the PVC film subjected to slicking treatment, and the auxiliary assembly prevents the PVC film from wrinkling again after the PVC film is slicked by the slicking assembly. By arranging the slicking assembly, when the winding device winds a thin film body, the thin film body can be effectively prevented from being wound on the surface of the winding device, a large number of wrinkles are avoided, and when the winding device collects the thin film body, the thin film body can be in a flat state all the time; and the film body is prevented from wrinkling again after being subjected to slicking treatment through the slicking assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC blown film preparation, in particular to a scraping device for preparing energy-saving and environment-friendly PVC blown film. Background Technique

[0002] Polyvinyl chloride (PVC) is a common plastic material. Its blown film is usually used in fields such as packaging, insulation, and building materials. The polyvinyl chloride film has high corrosion resistance and chemical stability, and can resist the erosion of most solvents and acid-base substances. The polyvinyl chloride film has strong light transmittance and is suitable for some applications that require transparent packaging materials. Due to its good transparency and corrosion resistance, it can protect products from external pollution.

[0003] The common manufacturing method of polyvinyl chloride film is the blow molding method. The specific process includes: heating the PVC resin to a molten state, extruding the molten PVC resin into a film shape through an extruder, then blowing and expanding the film into the required size and thickness through a blow molding process, and then guiding and winding the expanded film. At present, when the common winding device on the market winds the blown and expanded film, the film is prone to wrinkling, which in turn affects the quality of the finished product winding.

[0004] Therefore, we propose a scraping device for preparing energy-saving and environment-friendly PVC blown film. Content of the Utility Model

[0005] The purpose of the utility model is to provide a scraping device for preparing energy-saving and environment-friendly PVC blown film to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A scraping device for preparing energy-saving and environment-friendly PVC blown film, including a bottom plate, a scraping component, the scraping component is installed above the bottom plate, the scraping component is used for scraping the PVC film, the scraping component is used for scraping and flattening the wrinkles of the PVC film, an auxiliary component, the auxiliary component is installed below the scraping component, the auxiliary component is used for tensioning the scraped PVC film, and the auxiliary component prevents the PVC film from wrinkling again after being scraped flat by the scraping component.

[0007] Preferably, the scraping component includes mounting columns. There are two mounting columns, and the two mounting columns are respectively fixedly installed on the right side of the upper surface of the bottom plate. A fixing plate is fixedly connected to the upper side of the mutually close sides of the two mounting columns. A scraping plate is rotatably connected to the left side above the mutually close sides of the mounting columns. Several elastic steel plates are fixedly installed between the upper surface of the scraping plate and the fixing plate.

[0008] Preferably, a winding device is fixedly installed on the left side of the upper surface of the bottom plate.

[0009] Preferably, two fixing rods are fixedly installed on the right side of the upper surface of the bottom plate, and a guiding roller is rotatably connected between the mutually approaching surfaces of the two fixing rods.

[0010] Preferably, the auxiliary assembly includes mounting rods. There are two mounting rods, and the two mounting rods are respectively rotatably connected to the left side surfaces of the two mounting columns. An auxiliary roller is rotatably connected between the mutually approaching surfaces of the two mounting rods. A connecting rod is rotatably connected to the upper surface of each mounting rod. Chutes are formed in the left side surfaces of the two mounting columns, and a slider is clamped in each chute. The other end of each connecting rod is rotatably connected to the corresponding slider, and a spring is fixedly installed between the bottom surface of each slider and the bottom wall of the chute.

[0011] Preferably, the normal state of the spring is as shown in the figure.

[0012] Preferably, a film body is installed on the surfaces of the scraping plate, the guiding roller and the auxiliary roller, and the installation method of the film body is as shown in the figure.

[0013] Preferably, the horizontal height of the winding device is less than the horizontal height of the auxiliary roller.

[0014] The utility model has at least the following beneficial effects:

[0015] 1. When the film needs to be wound, first cool the film blown by the blow molding process, and then convey it to the right side of the whole device through the conveying device, so that the height of the film body is slightly lower than the horizontal height of the scraping plate. Then install the film body in the style as shown in the figure. Under the winding of the winding device, a slightly downward force will appear on the whole film body. At this time, affected by the elastic force of the elastic steel plate on the surface of the scraping plate, it will always be in a raised state and be in close contact with the bottom surface of the film body. At this time, the conveyed film body will be leveled. At this time, under the guidance and assistance of the guiding roller and the auxiliary roller, the winding device can avoid a large number of wrinkles on the film body when winding the film body.

[0016] By setting the leveling assembly, the winding device can effectively avoid a large number of wrinkles on the film body when winding the film body, and further make the finished product have a better effect.

[0017] 2. When the film body passes over the surface of the auxiliary roller, at this time, under the influence of the winding device on the film body, since the winding device is below the auxiliary roller, a relatively small downward force can be applied to the film body, which will cause the auxiliary roller to move slightly counterclockwise. At this time, under the action of the pulling force of the connecting rod on the mounting rod, the connecting rod will apply a reaction force to the auxiliary roller under the action of the elastic force of the spring through the slider, so as to make the film body taut when the winding device winds the film body.

[0018] By setting the auxiliary component, when the winding device collects the film body, the film body can always be in a flat state, avoiding the occurrence of wrinkles again after being leveled by the leveling component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the side structure of the present invention;

[0021] Figure 3 is a schematic diagram of the side cross-sectional structure of the present invention;

[0022] Figure 4 is the present invention Figure 3 is an enlarged schematic diagram of the structure at A of the present invention.

[0023] In the figure: 1, leveling component; 2, auxiliary component; 3, bottom plate; 4, mounting column; 5, mounting rod; 6, connecting rod; 7, chute; 8, slider; 9, spring; 10, auxiliary roller; 11, winding device; 12, fixed rod; 13, guide roller; 14, fixing plate; 15, leveling plate; 16, elastic steel plate; 17, film body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0026] Embodiment 1

[0027] An energy-saving and environment-friendly scraping device for preparing PVC blown film, comprising a bottom plate 3, a scraping component 1, the scraping component 1 is installed above the bottom plate 3, the scraping component 1 is used for scraping the PVC film, and the scraping component 1 is used for scraping and flattening the wrinkles of the PVC film. There is an auxiliary component 2, the auxiliary component 2 is installed below the scraping component 1, the auxiliary component 2 is used for tensioning the scraped PVC film, and the auxiliary component 2 prevents the PVC film from wrinkling again after being scraped flat by the scraping component 1.

[0028] The scraping component 1 includes mounting columns 4. There are two mounting columns 4, and the two mounting columns 4 are respectively fixedly installed on the right side of the upper surface of the bottom plate 3. Above the side of the two mounting columns 4 close to each other, there is a fixed plate 14 fixedly connected. On the left side above the side of the mounting columns 4 close to each other, there is a scraping plate 15 rotatably connected. Between the upper surface of the scraping plate 15 and the fixed plate 14, several elastic steel plates 16 are fixedly installed.

[0029] On the left side of the upper surface of the bottom plate 3, a winding device 11 is fixedly installed for winding the whole film body 17. On the right side of the upper surface of the bottom plate 3, two fixed rods 12 are fixedly installed. Between the sides of the two fixed rods 12 close to each other, there is a guide roller 13 rotatably connected, which is used for guiding the position of the film body 17.

[0030] When the film needs to be wound, first cool the film blown by the blow molding process, and then transport it to the right side of the whole device through the conveying device, so that the height of the film body 17 is slightly lower than the horizontal height of the scraping plate 15, and then install the film body 17 in the shown style. Under the winding of the winding device 11, there will be a slightly downward force on the whole film body 17. At this time, affected by the elastic force of the elastic steel plate 16 on the surface of the scraping plate 15, it will always be in a tilted state and in close contact with the bottom surface of the film body 17. At this time, the conveyed film body 17 will be scraped flat. At this time, under the guidance and assistance of the guide roller 13 and the auxiliary roller 10, when the winding device 11 winds the film body 17, a large number of wrinkles of the film body 17 can be avoided.

[0031] By setting the scraping component 1, when the winding device 11 winds the film body 17, a large number of wrinkles of the film body 17 winding around the surface of the winding device 11 can be effectively avoided, and further, the effect of the finished product can be better.

[0032] Embodiment Two

[0033] The auxiliary component 2 includes mounting rods 5. There are two mounting rods 5, and the two mounting rods 5 are respectively rotatably connected to the left side surfaces of the two mounting columns 4. An auxiliary roller 10 is rotatably connected between the mutually approaching surfaces of the two mounting rods 5. The upper surface of each mounting rod 5 is rotatably connected to a connecting rod 6. A chute 7 is provided on the left side surface of each mounting column 4. A slider 8 is clamped inside each chute 7. The other end of each connecting rod 6 is rotatably connected to the corresponding slider 8. A spring 9 is fixedly installed between the bottom surface of each slider 8 and the bottom wall of the chute 7.

[0034] The normal state of the spring 9 is as shown in the figure. When the mounting rod 5 rotates counterclockwise, under the influence of the elastic force of the spring 9, a reaction force can be exerted on the mounting rod 5 when it rotates counterclockwise.

[0035] The surface of the scraping plate 15, the surface of the guiding roller 13 and the surface of the auxiliary roller 10 are provided with a film body 17, and the installation method of the film body 17 is as shown in the figure.

[0036] The horizontal height of the winding device 11 is less than the horizontal height of the auxiliary roller 10, so that when the winding device 11 winds the film body 17, a downward force can be exerted on the film body 17 when it is on the surface of the auxiliary roller 10.

[0037] When the film body 17 passes through the surface of the auxiliary roller 10, at this time, under the influence of the winding of the winding device 11, since the winding device 11 is below the auxiliary roller 10, a relatively small downward force can be exerted on the film body 17. At this time, the auxiliary roller 10 will move slightly counterclockwise. At this time, under the action of the pulling force of the connecting rod 6 on the mounting rod 5, and under the action of the elastic force of the spring 9 through the slider 8 on the connecting rod 6, a reaction force will be exerted on the auxiliary roller 10, so as to make the film body 17 taut when the winding device 11 winds the film body 17.

[0038] By setting the auxiliary component 2, when the winding device 11 collects the film body 17, the film body 17 can always be in a flat state, avoiding the film body 17 from wrinkling again after being leveled by the leveling component 1.

[0039] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving and environment-friendly scraping device for preparing PVC blown film, comprising a bottom plate (3), characterized in that: A scraping assembly (1), the scraping assembly (1) being installed above the bottom plate (3), the scraping assembly (1) being used to scrape the PVC film, and the scraping assembly (1) being used to scrape the wrinkles of the PVC film; An auxiliary component (2) is installed below the scraping component (1), and is used to tension the PVC film after scraping. The auxiliary component (2) prevents the PVC film from wrinkling again after being scraped flat by the scraping component (1).

2. The energy-saving and environment-friendly PVC blown film preparation scraping device according to claim 1, characterized in that: The scraping assembly (1) comprises a mounting column (4), wherein the mounting columns (4) are two, and the two mounting columns (4) are respectively fixedly mounted on the right side of the upper surface of the base plate (3); a fixing plate (14) is fixedly connected above the side where the two mounting columns (4) are close to each other; a scraping plate (15) is rotatably connected to the left side above the side where the mounting columns (4) are close to each other; and a plurality of elastic steel plates (16) are fixedly mounted between the upper surface of the scraping plate (15) and the fixing plate (14).

3. The energy-saving and environment-friendly PVC blown film preparation scraping device according to claim 2, characterized in that: A winding device (11) is fixedly installed on the left side of the upper surface of the bottom plate (3), and the horizontal height of the winding device (11) is smaller than the horizontal height of the auxiliary roller (10).

4. The energy-saving and environment-friendly PVC blown film preparation scraping device according to claim 3, characterized in that: Two fixing rods (12) are fixedly installed on the right side of the upper surface of the bottom plate (3), and a guide roller (13) is rotatably connected between the two sides of the fixing rods (12) that are close to each other.

5. The energy-saving and environment-friendly scraping device for preparing PVC blown film according to claim 2, characterized in that: The auxiliary component (2) comprises a mounting rod (5), wherein the mounting rod (5) has two mounting rods (5), the two mounting rods (5) are rotatably connected to the left side surfaces of the two mounting columns (4), an auxiliary roller (10) is rotatably connected between the sides of the two mounting rods (5) that are close to each other, the upper surface of each mounting rod (5) is rotatably connected to a connecting rod (6), the left side surfaces of the two mounting columns (4) are provided with a slide groove (7), the interior of each slide groove (7) is clamped with a slider (8), the other end of each connecting rod (6) is rotatably connected to the corresponding slider (8), and a spring (9) is fixedly installed between the bottom surface of each slider (8) and the bottom wall of the slide groove (7).

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