A tape casting machine for ETFE film production

Abstract

The invention relates to the technical field of film production equipment, and in particular to a casting machine for ETFE film production, comprising a bottom plate and a fixing frame, wherein two fixing frames are symmetrically fixedly connected to the two ends of the upper surface of the bottom plate, an installation box is arranged between the two fixing frames, a cleaning component is arranged in the installation box, and the cleaning component comprises a rotating rod, a cleaning roller, a rotating shaft, and a protrusion, wherein the two rotating rods are symmetrically arranged and rotatably connected to the two ends of the installation box, and the invention drives the cleaning roller to rotate by the rotating rod to adsorb and clean the dust contaminated on the film, and two pressing plates reciprocate and cooperate with the cleaning roller to continuously flatten the wrinkles on the film, and tighten the film before entering the winding roller, so that the clean and flat film is tightly wound on the winding roller, so that the weight and color of the rolled ETFE films with the same thickness are consistent, the film is very beautiful and neat, and the winding effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of film production equipment, in particular to a casting machine for producing ETFE film. Background Art

[0002] As a new type of transparent building material, ETFE film has received widespread attention in recent years. The ETFE film material used in construction projects is a film processed from its raw materials. It is a high-quality alternative material in transparent building structures. Over the years, it has been proven to be a reliable and economical roofing material in many projects with its many advantages. It is generally produced using a cast film machine, and the plastic raw materials are finally formed through operations such as melting, extrusion molding, cooling, cutting, corona, and winding.

[0003] Before winding, the film is attached with dust and has wrinkles, resulting in poor winding effect. The weight of the film of the same thickness is different when it is wound, and it is relatively loose. The film also brings with it dust of poor quality, which is very unsightly and affects the quality of the final product. Summary of the invention

[0004] The purpose of the present invention is to solve the following shortcomings in the prior art: before winding, the film is covered with dust and has wrinkles, resulting in a poor winding effect, and the weight of the films of the same thickness wound is different. The films are relatively loose and the dust brought by the films is of poor quality, which is very unsightly and affects the quality of the final product. A casting machine for ETFE film production is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A casting machine for producing ETFE film, comprising a bottom plate and a fixing frame, wherein two fixing frames are symmetrically fixedly connected to two ends of the upper surface of the bottom plate, and a mounting box is arranged between the two fixing frames;

[0007] A cleaning assembly is arranged in the installation box, and the cleaning assembly includes a rotating rod, a cleaning roller, a rotating shaft, and a protrusion. The two rotating rods are symmetrically arranged and are rotatably connected to the two ends of the installation box respectively. The cleaning roller is fixedly connected between the two rotating rods. The rotating shaft is rotatably connected to the inner side wall of the installation box. Two ends of the rotating shaft are respectively provided with bidirectional threads, and the two protrusions are respectively threadedly connected to the two ends of the rotating shaft;

[0008] A leveling assembly is provided in the installation box, and the leveling assembly includes an L-shaped rod, a connecting plate, a connecting rod, and a pressure plate. The L-shaped rod is fixedly connected to the side wall of the protrusion, and a sliding groove is provided on the side wall of the installation box. The L-shaped rod is slidably connected in the sliding groove, and the connecting plate is fixedly connected to one end of the L-shaped rod away from the installation box. The two connecting rods are symmetrically arranged and are respectively slidably connected to the two ends of the connecting plate, and the pressure plate is fixedly connected to one end of the connecting rod close to the bottom plate.

[0009] Preferably, the cleaning assembly further comprises a scraper, the scraper is fixedly connected to the lower end surface of the protrusion, a scraping groove is provided on the lower end surface of the mounting box, the scraper is slidably connected in the scraping groove, and the scraper is slidably connected to the cleaning roller.

[0010] Preferably, two mounting blocks are fixedly connected at both ends of the upper surface of the base plate, a winding roller is rotatably connected between the two mounting blocks, one end of one of the mounting blocks away from the winding roller is fixedly connected to a motor, the output end of the motor is fixedly connected to the winding roller, a first belt is sleeved between the winding roller and the rotating rod, and a second belt is sleeved between the rotating rod and the rotating shaft.

[0011] Preferably, both ends of the inner side wall of the fixing frame are provided with limiting grooves, the limiting blocks are slidably connected in the limiting grooves, the rotating rod is rotatably connected in the limiting blocks, and the limiting rod is fixedly connected between the limiting blocks and the installation box.

[0012] Preferably, two gas cylinders are fixedly connected to both ends of the top wall of the installation box, a piston plate is slidably connected to the inner wall of the gas cylinder, a push rod is fixedly connected to the side wall of the piston plate, and the push rod is slidably connected to one of the side walls of the gas cylinder.

[0013] Preferably, one end of the push rod away from the piston plate is fixedly connected to a push plate, and two ends of the rotating shaft are respectively fixedly connected to two cams, and the cams are slidably connected to the push plate.

[0014] Preferably, two air suction cavities are fixedly connected to both ends of the bottom wall of the installation box, and an air outlet cavity is fixedly connected to one end of the installation box close to the winding roller. The air suction cavity, the air outlet cavity and the side wall of the installation box are all provided with multiple air holes, and a filter is arranged inside the air outlet cavity.

[0015] Preferably, an air inlet pipe is fixedly connected between the air cylinder and the air suction cavity, an air outlet pipe is fixedly connected between the two air cylinders and the air outlet cavity, and a one-way valve is provided in each of the air inlet pipe and the air outlet pipe.

[0016] Preferably, a compression spring is fixedly connected between the limit block and the fixed frame, a return spring is fixedly connected between the push plate and the air cylinder, an adjustment spring is fixedly connected between the connecting plate and the pressure plate, and a handle is fixedly connected to the upper end surface of the installation box.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The cleaning roller is driven by the rotating rod to rotate and the dust on the film is adsorbed and cleaned. The two pressure plates reciprocate and cooperate with the cleaning roller to continuously flatten the wrinkles on the film, and tighten the film before entering the winding roller, so that the clean and flat film is tightly wound around the winding roller, so that the weight and color of the ETFE film with the same thickness are consistent, which is very beautiful and neat, and the winding effect is better.

[0019] The rotating shaft drives the two protrusions and the scraper to reciprocate to scrape the dust on the cleaning roller, so that the cleaning roller always maintains a good cleaning ability, and the staggered cams continuously squeeze the push plate to continuously suck the dust into the air suction chamber to prevent the dust from falling onto the film again, and the dust is retained in the air outlet chamber through the filter screen. The gas is ejected from the air outlet chamber to form a shielding layer above the film that is about to be rolled onto the winding roller, preventing dust from falling onto the film and keeping the film clean.

[0020] Through the cooperation of the pressing spring and the limit block, the cleaning roller can clean films of different thicknesses, and cooperate with the connecting rod and the adjusting spring to flatten and arrange films of different thicknesses, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of an installation box of a casting machine for producing ETFE film proposed by the present invention;

[0022] Figure 2 A schematic diagram of the structure of an air outlet cavity of a casting machine for producing ETFE film proposed by the present invention;

[0023] Figure 3 A schematic diagram of the rotating shaft structure of a casting machine for producing ETFE film proposed by the present invention;

[0024] Figure 4 A schematic diagram of the structure of a limit block of a tape casting machine for producing ETFE film proposed by the present invention;

[0025] Figure 5 A schematic diagram of the structure of a cleaning roller of a casting machine for producing ETFE film proposed by the present invention;

[0026] Figure 6 A schematic diagram of a pressing plate structure of a casting machine for producing ETFE film proposed by the present invention;

[0027] Figure 7 The present invention provides a schematic diagram of the structure of an air suction chamber of a casting machine for producing ETFE film.

[0028] In the figure: 1 bottom plate, 2 fixing frame, 3 mounting box, 4 rotating rod, 5 cleaning roller, 6 rotating shaft, 7 protrusion, 8 scraper, 9 L-shaped rod, 10 connecting plate, 11 connecting rod, 12 pressing plate, 13 mounting block, 14 winding roller, 15 motor, 16 first belt, 17 second belt, 18 limiting block, 19 limiting rod, 20 air cylinder, 21 piston plate, 22 push rod, 23 push plate, 24 cam, 25 suction chamber, 26 exhaust chamber, 27 air inlet pipe, 28 exhaust pipe, 29 pressing spring, 30 return spring, 31 adjusting spring, 32 handle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-Figure 7 A casting machine for ETFE film production includes a base plate 1 and a fixing frame 2. The two fixing frames 2 are symmetrically fixedly connected to the two ends of the upper surface of the base plate 1 with a mounting box 3 as the center. A mounting box 3 is arranged between the two fixing frames 2. The mounting box 3 is hollow inside and has a concave lower end surface.

[0031] A cleaning assembly is provided in the installation box 3, and the cleaning assembly includes a rotating rod 4, a cleaning roller 5, a rotating shaft 6, and a protrusion 7. The two rotating rods 4 are symmetrically arranged with the cleaning roller 5 as the center, and are rotatably connected to the two ends of the installation box 3 respectively. The rotating rod 4 runs through the installation box 3, and the cleaning roller 5 is fixedly connected between the two rotating rods 4. The rotating shaft 6 is rotatably connected to the inner wall of the installation box 3. Two ends of the rotating shaft 6 are respectively provided with bidirectional threads, and two protrusions 7 are respectively threadedly connected to the two ends of the rotating shaft 6. The protrusion 7 is composed of two plates, the upper end is larger and the lower end is smaller, and is convex downward.

[0032] A leveling assembly is provided in the installation box 3, and the leveling assembly includes an L-shaped rod 9, a connecting plate 10, a connecting rod 11, and a pressing plate 12. The L-shaped rod 9 is fixedly connected to the side wall of the protrusion 7, and a sliding groove is provided on the side wall of the installation box 3. The L-shaped rod 9 is slidably connected in the sliding groove, and the connecting plate 10 is fixedly connected to the end of the L-shaped rod 9 away from the installation box 3. The two connecting rods 11 are symmetrically arranged with the L-shaped rod 9 as the center, and are slidably connected to the two ends of the connecting plate 10 respectively. The pressing plate 12 is fixedly connected to the end of the connecting rod 11 close to the bottom plate 1, and an adjusting spring 31 is fixedly connected between the connecting plate 10 and the pressing plate 12. The connecting rod 11 can slide between the connecting plates 10, thereby driving the pressing plate 12 to adapt to films of different thicknesses, and the adjusting spring 31 is in a compressed state, and can always maintain pressure on the pressing plate 12, so that the pressing plate 12 has a higher contact force on the film, thereby flattening the wrinkles of the film and tightening the film.

[0033] The cleaning assembly also includes a scraper 8, which is fixedly connected to the lower end surface of the protrusion 7. A scraping groove is provided on the lower end surface of the mounting box 3. The scraper 8 is slidably connected in the scraping groove. The upper end of the scraper 8 is cylindrical, and the cylindrical part is slidably connected in the scraping groove. The lower end surface is square and has an arc groove, which fits the shape of the cleaning roller 5. The scraper 8 is slidably connected to the cleaning roller 5, and the lower end surface is provided with a cleaning brush, which scrapes off the dust adsorbed on the cleaning roller 5 when it is in sliding contact with the cleaning roller 5.

[0034] Two mounting blocks 13 are fixedly connected to both ends of the upper surface of the base plate 1, and a winding roller 14 is rotatably connected between the two mounting blocks 13. One end of one of the mounting blocks 13 away from the winding roller 14 is fixedly connected to a motor 15, and the output end of the motor 15 is fixedly connected to the winding roller 14. A first belt 16 is sleeved between the winding roller 14 and the rotating rod 4, and a second belt 17 is sleeved between the rotating rod 4 and the rotating shaft 6.

[0035] Limiting grooves are provided at both ends of the inner side wall of the fixing frame 2, and limiting blocks 18 are slidably connected in the limiting grooves. A pressing spring 29 is fixedly connected between the limiting block 18 and the fixing frame 2. The rotating rod 4 is rotatably connected in the limiting block 18, and a limiting rod 19 is fixedly connected between the limiting block 18 and the installation box 3. A handle 32 is fixedly connected to the upper end surface of the installation box 3. Pulling the handle 32 can drive the installation box 3 to move upward. The two limiting rods 19 limit and fix the installation box 3 to prevent it from rotating under the action of the rotating rod 4.

[0036] Two air cylinders 20 are fixedly connected to the two ends of the top wall of the installation box 3, and a piston plate 21 is sealingly and slidably connected to the inner wall of the air cylinder 20. A push rod 22 is fixedly connected to the side wall of the piston plate 21. The push rod 22 is slidably connected to one of the side walls of the air cylinder 20, and the push rod 22 and the air cylinder 20 are not sealed. A push plate 23 is fixedly connected to the end of the push rod 22 away from the piston plate 21, and a return spring 30 is fixedly connected between the push plate 23 and the air cylinder 20. Two cams 24 are fixedly connected to the two ends of the rotating shaft 6, and the cams 24 are slidably connected to the push plates 23. The two cams 24 are staggered, and the long ends of the two cams 24 form an angle of 180 degrees.

[0037] Two suction chambers 25 are fixedly connected to the two ends of the bottom wall of the installation box 3, and an air outlet chamber 26 is fixedly connected to the end of the installation box 3 close to the winding roller 14. The suction chamber 25, the air outlet chamber 26 and the side wall of the installation box 3 are all provided with a plurality of air holes. The suction chamber 25 is arranged on both sides just above the cleaning roller 5, and the dust scraped off from the cleaning roller 5 by the scraper 8 can be sucked in, while the air outlet chamber 26 is arranged between the installation box 3 and the winding roller 14, above the film that is about to be rolled into the winding roller 14, and a shielding layer is formed above the film to prevent dust from being rolled into the winding roller 14. The dust in the air outlet cavity 26 is retained in the air outlet cavity 26 to prevent it from escaping into the air. An air inlet pipe 27 is fixedly connected between the air cylinder 20 and the air suction cavity 25, and an air outlet pipe 28 is fixedly connected between the two air cylinders 20 and the air outlet cavity 26. Both the air inlet pipe 27 and the air outlet pipe 28 are provided with a one-way valve. The flow direction of the one-way valve in the air inlet pipe 27 is from the air suction cavity 25 to the air cylinder 20, and the flow direction of the one-way valve in the air outlet pipe 28 is from the air cylinder 20 to the air outlet cavity 26.

[0038] In the present invention, when in use, the handle 32 is first pulled upwards, and the handle 32 drives the cleaning roller 5 and the pressure plate 12 to move upwards through the installation box 3, and the installation box 3 drives the limit block 18 to move upwards through the limit rod 19, and compresses the pressing spring 29, and then the extruded film passes under the cleaning roller 5 and the pressure plate 12, is pulled to the winding roller 14 and fixed, and the handle 32 is released and the motor 15 is started. Under the elastic force of the pressing spring 29, the limit block 18 drives the installation box 3 to reset through the limit rod 19, and the cleaning roller 5 and the pressure plate 12 tightly press the film. Under the action of the limit block 18 and the pressing spring 29, films of different thicknesses can be cleaned and flattened, and it is very practical.

[0039] The motor 15 rotates to drive the winding roller 14 to rotate and rewind the film. The winding roller 14 drives the rotating rod 4 to rotate through the first belt 16. The rotating rod 4 drives the cleaning roller 5 to rotate to absorb and clean the dust attached to the film, and flattens and arranges the wrinkles to a certain extent. The rotating rod 4 drives the rotating shaft 6 to rotate through the second belt 17. Under the action of the two sections of bidirectional threads set on the rotating shaft 6, the directions of the threads at both ends are opposite, so the two protrusions 7 move in opposite directions, repeatedly approaching or moving away from each other, and the two protrusions 7 drive the two scrapers 8 to scrape the cleaning roller 5 to scrape off the dust attached to the cleaning roller 5, so as to avoid the accumulation of dust on the cleaning roller 5 and the weakening of the cleaning effect of the cleaning roller 5.

[0040] The rotation of the rotating shaft 6 drives the cams 24 at both ends to rotate. When the cam 24 approaches the push plate 23, it squeezes the push plate 23, drives the push plate 23 and the push rod 22 to move toward the air cylinder 20, squeezes the return spring 30, and the push rod 22 drives the piston plate 21 to move toward the air cylinder 20. The space between the piston plate 21 and the air cylinder 20 is reduced and forms a positive pressure. Under the action of pressure, the one-way valve in the air outlet pipe 28 opens, and the one-way valve in the air inlet pipe 27 is closed. The gas and dust in the air cylinder 20 enter the air outlet cavity 26 along the air outlet pipe 28 and are ejected from the air holes on the air outlet cavity 26. Since a filter is provided in the air outlet cavity 26, the dust is retained in the air outlet cavity 26. The gas that is continuously ejected upward forms a shielding area, so that the dust will not fall on the air outlet cavity 26. The air outlet cavity 26 is located just above the film, so the dust The dust scraped off by the scraper 8 is sucked into the air chamber 25 along the air hole, and enters the air cylinder 20 from the air chamber 25 along the air inlet pipe 27, so as to prevent the dust scraped off by the scraper 8 from falling onto the film again, thereby improving the cleaning effect. The two cams 24 are staggered, and the long end angle of the two cams 24 is 180 degrees. Therefore, the two cams 24 alternately push the push plates 23 on both sides, so that the gas in the air chamber 25 and the air outlet chamber 26 will not be interrupted.

[0041] The two protrusions 7 make reciprocating motion on the rotating shaft 6, thereby driving the two L-shaped rods 9 to make reciprocating motion, and the L-shaped rods 9 drive the connecting plate 10 to make reciprocating motion. Under the elastic force of the connecting rod 11 and the adjusting spring 31, there is always a high contact pressure on films of different thicknesses, so that the pressing plate 12 presses the film tightly, and the two pressing plates 12 constantly approach and move away from each other, flattening the wrinkles on the upper end of the film, and tightening the film to prevent it from forming wrinkles again before winding. The very clean and flat film is wound onto the winding roller 14 in a tightened state, and the winding effect is good. The weight and color of the ETFE films with the same thickness are consistent, and they are very beautiful and neat.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casting machine for producing ETFE film, comprising a bottom plate (1) and a fixing frame (2), characterized in that: The two fixing frames (2) are symmetrically fixedly connected to the two ends of the upper surface of the bottom plate (1), and a mounting box (3) is arranged between the two fixing frames (2); A cleaning assembly is arranged in the installation box (3), and the cleaning assembly comprises a rotating rod (4), a cleaning roller (5), a rotating shaft (6), and a protrusion (7); the two rotating rods (4) are symmetrically arranged and are rotatably connected to the two ends of the installation box (3), respectively; the cleaning roller (5) is fixedly connected between the two rotating rods (4); the rotating shaft (6) is rotatably connected to the inner side wall of the installation box (3); two ends of the rotating shaft (6) are respectively provided with bidirectional threads; and the two protrusions (7) are respectively threadedly connected to the two ends of the rotating shaft (6); A leveling assembly is arranged in the installation box (3), and the leveling assembly comprises an L-shaped rod (9), a connecting plate (10), a connecting rod (11), and a pressing plate (12). The L-shaped rod (9) is fixedly connected to the side wall of the protrusion (7). A sliding groove is provided on the side wall of the installation box (3). The L-shaped rod (9) is slidably connected in the sliding groove. The connecting plate (10) is fixedly connected to one end of the L-shaped rod (9) away from the installation box (3). The two connecting rods (11) are symmetrically arranged and are slidably connected to the two ends of the connecting plate (10) respectively. The pressing plate (12) is fixedly connected to one end of the connecting rod (11) close to the bottom plate (1).

2. A tape casting machine for producing ETFE film according to claim 1, characterized in that: The cleaning assembly further comprises a scraper (8), the scraper (8) being fixedly connected to the lower end surface of the protrusion (7), the lower end surface of the mounting box (3) being provided with a scraping groove, the scraper (8) being slidably connected in the scraping groove, and the scraper (8) being slidably connected to the cleaning roller (5).

3. A tape casting machine for producing ETFE film according to claim 1, characterized in that: Two mounting blocks (13) are fixedly connected to both ends of the upper surface of the bottom plate (1), and a winding roller (14) is rotatably connected between the two mounting blocks (13). An end of one of the mounting blocks (13) away from the winding roller (14) is fixedly connected to a motor (15), and an output end of the motor (15) is fixedly connected to the winding roller (14). A first belt (16) is sleeved between the winding roller (14) and the rotating rod (4), and a second belt (17) is sleeved between the rotating rod (4) and the rotating shaft (6).

4. A tape casting machine for producing ETFE film according to claim 3, characterized in that: Both ends of the inner side wall of the fixing frame (2) are provided with limiting grooves, a limiting block (18) is slidably connected in the limiting groove, the rotating rod (4) is rotatably connected in the limiting block (18), and a limiting rod (19) is fixedly connected between the limiting block (18) and the installation box (3).

5. A casting machine for producing ETFE film according to claim 4, characterized in that: Two gas cylinders (20) are fixedly connected to the two ends of the top wall of the installation box (3), respectively; a piston plate (21) is slidably connected to the inner side wall of the gas cylinder (20); a push rod (22) is fixedly connected to the side wall of the piston plate (21); and the push rod (22) is slidably connected to one side wall of the gas cylinder (20).

6. A tape casting machine for producing ETFE film according to claim 5, characterized in that: One end of the push rod (22) away from the piston plate (21) is fixedly connected to a push plate (23), and two ends of the rotating shaft (6) are respectively fixedly connected to two cams (24), and the cams (24) are slidably connected to the push plate (23).

7. A casting machine for producing ETFE film according to claim 5, characterized in that: Two air suction cavities (25) are fixedly connected to the two ends of the bottom wall of the installation box (3), and an air outlet cavity (26) is fixedly connected to one end of the installation box (3) close to the winding roller (14). The air suction cavity (25), the air outlet cavity (26) and the side wall of the installation box (3) are all provided with a plurality of air holes, and a filter is provided inside the air outlet cavity (26).

8. A tape casting machine for producing ETFE film according to claim 7, characterized in that: An air inlet pipe (27) is fixedly connected between the air cylinder (20) and the air suction chamber (25), and an air outlet pipe (28) is fixedly connected between the two air cylinders (20) and the air outlet chamber (26). Both the air inlet pipe (27) and the air outlet pipe (28) are provided with a one-way valve.

9. A tape casting machine for producing ETFE film according to claim 6, characterized in that: A pressing spring (29) is fixedly connected between the limit block (18) and the fixing frame (2), a return spring (30) is fixedly connected between the push plate (23) and the air cylinder (20), an adjusting spring (31) is fixedly connected between the connecting plate (10) and the pressing plate (12), and a handle (32) is fixedly connected to the upper end surface of the installation box (3).

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