Plastic film as well as production equipment and production method thereof

Abstract

The invention relates to the technical field of plastic films, in particular to a plastic film and production equipment and a production method thereof. Comprising a plurality of mold stripping assemblies which are fixedly connected with one another and located at the same height, each mold stripping assembly comprises a casting mold, the casting mold can be installed on heating equipment, a discharging gap of a linear structure is formed in the lower end of the casting mold, a telescopic rod B is fixedly connected to the left side of the casting mold, a cross rod is fixedly connected to the telescopic rod B, and a plurality of separating rods are in sliding contact with the cross rod; the plurality of separating rods can be in contact with the lower end of the casting die; telescopic rods A are fixedly connected to the front end and the rear end of the right side of the casting die, baffles are fixedly connected to the two telescopic rods A, and the upper end faces of the two baffles make contact with the lower end face of the casting die to shield a discharging gap; when the plastic films are produced, a plurality of plastic films can be obtained at the same forming position, so that the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic films, and more particularly to a plastic film and a production device and a production method thereof. Background Art

[0002] There are many methods for producing plastic films, one of which is the cast film method, which allows the raw materials to automatically flow out in a molten state to form a film. A molding mold is required in this process, but the current molds can only produce a film of one specification during the production process. If the production speed needs to be increased, molds and related equipment need to be added to increase production. Currently, there is a lack of production equipment on the market that can use a single mold to produce multiple films. Therefore, in order to solve the above problems, the present application provides a plastic film and its production equipment and production method. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a plastic film and a production device and a production method thereof, which can obtain multiple plastic films at the same forming position during the production of the plastic film, thereby improving the production efficiency.

[0004] The technical solution adopted by the present invention to solve the technical problem is:

[0005] A plastic film production device, comprising a plurality of ejection mold assemblies fixedly connected to each other and at the same height, the ejection mold assembly comprising a casting mold, the casting mold can be mounted on a heating device and a linear ejection gap is provided at the lower end of the casting mold, a telescopic rod B is fixedly connected to the left side of the casting mold, a cross bar is fixedly connected to the telescopic rod B, a plurality of separation rods are slidably contacted on the cross bar, and the plurality of separation rods can contact the lower end of the casting mold;

[0006] The front and rear ends of the right side of the casting die are fixedly connected with telescopic rods A, and baffles are fixedly connected to the two telescopic rods A. The upper end surfaces of the two baffles are in contact with the lower end surface of the casting die to block the discharge gap.

[0007] The casting mold is fixedly connected to the square frame, and the left and right ends of the square frame are connected with screw rods A. The inner ends of the two screw rods A are rotatably connected to trusses, and the inner side of each truss is rotatably connected to a shaping wheel.

[0008] The lower ends of the two square frames in the two outermost demoulding assemblies are fixedly connected with hanging frames, the left and right sides of the hanging frames are rotatably connected with lower rollers, and the middle part of the hanging frame is rotatably connected with two upper rollers.

[0009] The lower middle end of the hanging frame is fixedly connected to a bottom frame, both left and right ends of the bottom frame are connected to screw rods B, the inner ends of the two screw rods B are rotatably connected to cross frames, and the inner sides of the two cross frames are rotatably connected to pressure rollers.

[0010] A method for producing a plastic film, the method comprising the following steps:

[0011] S1: The raw material is heated and melted by a heating device and then passed into a casting die, where it flows out from a discharge gap below the casting die by gravity to form a film;

[0012] S2: changing the spacing between the multiple separation rods to select the outflowing raw materials to separate an appropriate number of films;

[0013] S3: Use two shaping rollers to flatten the film and cool it to shape it;

[0014] S4: After the films are guided by the lower roller and the upper roller, a plurality of films are passed through two pressing rollers for extrusion and lamination to obtain a plastic film.

[0015] A plastic film comprises polyethylene, polyester, chlorosulfonated polyethylene and pigment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the production equipment in the present invention;

[0018] Figure 2 It is a structural schematic diagram of the demoulding assembly in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the frame in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the casting die in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the scraper in the present invention;

[0022] Figure 6 It is a structural schematic diagram of the separation rod in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the baffle in the present invention;

[0024] Figure 8 It is a structural schematic diagram of the shaping roller in the present invention;

[0025] Fig. 9 It is a structural schematic diagram of the hanging frame in the present invention;

[0026] Fig.10 It is a structural schematic diagram of the pressure roller in the present invention;

[0027] In the figure: cast film mold 01; telescopic rod A02; baffle 03; telescopic rod B04; cross bar 05; separation rod 06; frame 07; screw A08; truss 09; shaping roller 10; connecting nozzle 11; wiping strip 12; scraper 13; hanging frame 14; lower roller 15; upper roller 16; bottom frame 17; cross frame 18; screw B19; pressure roller 20. DETAILED DESCRIPTION

[0028] See attached Figure 6 and Figure 7 From the structure shown, it can be understood that an exemplary operation process of adjusting the quantity of the present application is:

[0029] A plastic film production device comprises a plurality of ejection mold assemblies which are fixedly connected to each other and are at the same height, the ejection mold assembly comprises a casting mold 01, the casting mold 01 can be mounted on a heating device and a discharge slit of a straight structure is provided at the lower end of the casting mold 01, a telescopic rod B04 is fixedly connected to the left side of the casting mold 01, a cross bar 05 is fixedly connected to the telescopic rod B04, a plurality of separation rods 06 are slidably contacted on the cross bar 05, and the plurality of separation rods 06 can contact the lower end of the casting mold 01; the plurality of separation rods 06 are slidably removed from the cross bar 05, and when the raw materials flow out from the discharge slit, When a plurality of plastic films are needed, a plurality of separation rods 06 are slid onto the cross bar 05 so that the plurality of separation rods 06 are in contact with the lower end of the casting mold 01, so that the raw material is blocked by the separation rods 06 when it flows out, and the discharge gap is divided, so that the plastic film is divided to obtain a plurality of plastic films; at the same time, the spacing between the plurality of separation rods 06 is adjusted to obtain a plastic film of a corresponding width, and the width of the plastic film can also be adjusted by the spacing between the plurality of separation rods 06, so that a plurality of plastic films of different widths can be obtained at the same time.

[0030] See attached Figure 6 and Figure 7 From the structure shown, it can be understood that an exemplary operation process of adjusting the width of a single film of the present application is:

[0031] The front and rear ends of the right side of the casting mold 01 are fixedly connected with telescopic rods A02, and baffles 03 are fixedly connected to the two telescopic rods A02. The upper end surfaces of the two baffles 03 are in contact with the lower end surface of the casting mold 01 to block the discharge gap; before the raw material flows out, the two baffles 03 are driven by the two telescopic rods A02 to change the spacing at the same time, so that the two baffles 03 can block the discharge gap, thereby changing the length range of the raw material that can flow out of the discharge gap, thereby adjusting the width of a single plastic film when manufacturing a single plastic film.

[0032] See attached Figures 1 to 8 From the structure shown, it can be understood that an exemplary operation process of rolling the film of the present application is:

[0033] The casting die 01 is fixedly connected to the square frame 07, and the left and right ends of the square frame 07 are connected to screw rods A08, the inner ends of the two screw rods A08 are rotatably connected to trusses 09, and the inner side of each truss 09 is rotatably connected to a shaping wheel 10; after the raw material flows down to form a film, it can be quickly cooled and formed by air, but the film is not completely cooled at this time, and the two screw rods A08 are adjusted so that the two screw rods A08 drive the two trusses 09 to approach each other, so that the two shaping wheels 10 contact the film passing between the two shaping wheels 10, so that the two shaping wheels 10 roll the film surface from both sides, and the film surface is flattened by rolling, so that the obtained film surface is smoother.

[0034] See attached Figures 1 to 8 From the structure shown, it can be understood that an exemplary operation process of the present application to avoid film sticking is:

[0035] A scraper 13 is fixedly connected to the lower end of the truss 09, and the scraper 13 contacts the outer surface of the lower side of the shaping roller 10; after the shaping roller 10 rolls and contacts the film, as the shaping roller 10 rotates, the film passes through the scraper 13, and the scraper 13 peels the film off the surface of the shaping roller 10, thereby preventing the film from sticking to the shaping roller 10.

[0036] See attached Figures 1 to 8 From the structure shown, it can be understood that an exemplary operation process of keeping clean in the present application is:

[0037] A wiping strip 12 is fixedly connected to the inner end of the truss 09, and the wiping strip 12 contacts the outer surface of the shaping roller 10; as the shaping roller 10 rotates, the wiping strip 12 can be used to contact the shaping roller 10 to clean the surface of the shaping roller 10, so as to prevent impurities from sticking to the surface of the shaping roller 10 and causing the impurities to contaminate the film when the film is rolled.

[0038] See attached Figures 1 to 8 From the structure shown, it can be understood that an exemplary operation process of the accelerated molding of the present application is:

[0039] The interior of the shaping roller 10 is hollow and both the front and rear ends of the shaping roller 10 are rotatably connected with connecting nozzles 11; a cold water pipe is connected to the connecting nozzle 11 so that cold water enters the shaping roller 10, thereby reducing the temperature of the shaping roller 10. When the shaping roller 10 flattens the film, the flattened film is cooled faster, thereby improving the cooling and molding effect.

[0040] See attached Figures 1 to 10 From the structure shown, it can be understood that an exemplary operation process guided by the present application is:

[0041] The lower ends of the two square frames 07 in the two outermost demoulding assemblies are fixedly connected to a hanging frame 14, the left and right sides of the hanging frame 14 are rotatably connected to lower rollers 15, and the middle part of the hanging frame 14 is rotatably connected to two upper rollers 16; after the film is cooled and formed, the film is passed around the lower roller 15 or the upper roller 16 and then connected to the winding device, thereby realizing the winding of the film.

[0042] See attached Figures 1 to 10 From the structure shown, it can be understood that an exemplary operation process of the composite film of the present application is:

[0043] The lower middle end of the hanging frame 14 is fixedly connected to a bottom frame 17, and the left and right ends of the bottom frame 17 are connected to screw rods B19, the inner ends of the two screw rods B19 are rotatably connected to a cross frame 18, and the inner sides of the two cross frames 18 are rotatably connected to pressure rollers 20; the obtained films on both sides are passed from under the two lower rollers 15 and then from over the two upper rollers 16, so that the two films pass between the two pressure rollers 20, and the two screw rods B19 can be rotated to make the two pressure rollers 20 squeeze the two films so that the two films are attached together, so that the two films that have not been completely cooled and formed can be pasted together, thereby realizing the compounding of the two films, and through the above method, two films of different colors or materials can be glued together to obtain a composite plastic film, and plastic films with different colors and different materials on both sides can be obtained, thereby meeting various needs.

[0044] A method for producing a plastic film, the method comprising the following steps:

[0045] S1: The raw material is heated and melted by a heating device and then passed into the casting die 01, where it flows out from the discharge gap below the casting die 01 by gravity to form a film;

[0046] S2: changing the spacing between the plurality of separation rods 06 to select the outflowing raw material to separate an appropriate number of films;

[0047] S3: using two shaping rollers 10 to flatten the film and cool it for shaping;

[0048] S4: After the films are guided by the lower roller 15 and the upper roller 16, a plurality of films are passed through two pressing rollers 20 for extrusion bonding to obtain a plastic film.

[0049] A plastic film comprises polyethylene, polyester, chlorosulfonated polyethylene and pigment.

Claims

1. A plastic film production device, characterized in that: The invention comprises a plurality of ejection mold assemblies which are fixedly connected to each other and are at the same height. The ejection mold assembly comprises a casting mold (01). The casting mold (01) can be installed on a heating device and a discharge gap with a linear structure is provided at the lower end of the casting mold (01). A telescopic rod B (04) is fixedly connected to the left side of the casting mold (01). A cross bar (05) is fixedly connected to the telescopic rod B (04). A plurality of separation rods (06) are slidably contacted on the cross bar (05). The plurality of separation rods (06) can contact the lower end of the casting mold (01).

2. The plastic film production equipment according to claim 1, characterized in that: The front and rear ends of the right side of the casting die (01) are fixedly connected with telescopic rods A (02), and baffles (03) are fixedly connected to the two telescopic rods A (02). The upper end surfaces of the two baffles (03) are in contact with the lower end surface of the casting die (01) to block the discharge gap.

3. The plastic film production equipment according to claim 2, characterized in that: The casting die (01) is fixedly connected to a square frame (07), and the left and right ends of the square frame (07) are connected to screw rods A (08), the inner ends of the two screw rods A (08) are rotatably connected to trusses (09), and the inner side of each truss (09) is rotatably connected to a shaping wheel (10).

4. The plastic film production equipment according to claim 3, characterized in that: The lower end of the truss (09) is fixedly connected with a scraper (13), and the scraper (13) contacts the outer surface of the lower side of the shaping roller (10).

5. The plastic film production equipment according to claim 4, characterized in that: The inner end of the truss (09) is fixedly connected with a wiping strip (12), and the wiping strip (12) contacts the outer surface of the shaping roller (10).

6. The plastic film production equipment according to claim 5, characterized in that: The interior of the shaping roller (10) is hollow, and both the front and rear ends of the shaping roller (10) are rotatably connected to connecting nozzles (11).

7. A processing device for processing the plastic film production device according to claim 6, characterized in that: The lower ends of the two square frames (07) in the two outermost demoulding assemblies are fixedly connected to a hanging frame (14), the left and right sides of the hanging frame (14) are rotatably connected to lower rollers (15), and the middle part of the hanging frame (14) is rotatably connected to two upper rollers (16).

8. The processing equipment according to claim 7, characterized in that: The lower middle end of the hanging frame (14) is fixedly connected to a bottom frame (17), the left and right ends of the bottom frame (17) are connected to screw rods B (19), the inner ends of the two screw rods B (19) are rotatably connected to a cross frame (18), and the inner sides of the two cross frames (18) are rotatably connected to pressure rollers (20).

9. A method for producing a plastic film, characterized in that: The method includes the following steps: S1: using a heating device to heat and melt the raw material, and then passing it into a casting die (01), and using gravity to flow out from a discharge gap below the casting die (01) to form a film; S2: changing the spacing between the plurality of separation rods (06) to select the outflowing raw material and separate an appropriate number of films; S3: using two shaping rollers (10) to flatten the film and cool it to shape it; S4: After the films are guided by the lower roller (15) and the upper roller (16), a plurality of films are passed through two pressing rollers (20) for extrusion and lamination to obtain a plastic film.

10. A plastic film, characterized in that: Plastic films include the following raw materials: polyethylene, polyester, chlorosulfonated polyethylene and pigments.

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