Efficient multi-machine-head film blowing machine

Abstract

The utility model discloses an efficient multi-machine-head film blowing machine which comprises a plastic extruding machine, a feeding barrel, a drying and dewatering mechanism, a flow dividing pipe, a forming mechanism, a guide frame, a winding mechanism and an electric heating wire, the feeding barrel communicated with the plastic extruding machine is fixed on the plastic extruding machine, the electric heating wire is fixed in the feeding barrel, the drying and dewatering mechanism extends into the feeding barrel, and the flow dividing pipe is arranged on the flow dividing pipe. The left end of the plastic extruding machine is connected with a flow dividing pipe, the flow dividing pipe is communicated with the two forming mechanisms, a guide frame is arranged above the forming mechanisms, and a winding mechanism is arranged on the ground on the left side of the guide frame. Water in raw materials is fully dried, and the water is prevented from affecting the quality of a follow-up formed film.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, and in particular to a high-efficiency multi-head blown film machine. Background Technology

[0002] A multi-head blown film extrusion machine is a device used to produce plastic films. It has multiple extrusion heads and can simultaneously produce multiple layers or multiple films of the same specifications. Multi-head blown film extrusion machines have higher production efficiency, but they also process plastic granules more quickly. Existing multi-head blown film extrusion machines lack the function of drying and dehydrating the plastic granules. When there is a lot of moisture attached to the plastic granules, it can easily lead to wrinkles and poor transparency in the subsequently formed film, affecting the film quality. Therefore, there is an urgent need to develop a high-efficiency multi-head blown film extrusion machine that can thoroughly dry the moisture in the raw material to prevent moisture from affecting the quality of the subsequently formed film, in order to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0003] The purpose of this invention is to provide a high-efficiency multi-head blown film machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-efficiency multi-head blown film machine includes an extruder, a feeding cylinder, a drying and dehydration mechanism, a distribution pipe, a forming mechanism, a guide frame, a winding mechanism, and a heating wire. The feeding cylinder is fixedly mounted on and connected to the extruder, and a heating wire is fixed inside the feeding cylinder. The drying and dehydration mechanism extends into the feeding cylinder and includes: a blower, a spiral tube, a heating rod, a guide pipe, a main pipe, branch pipes, an air outlet, and a rotating mechanism. The blower is mounted on the ground, and its air outlet is connected to the spiral tube. The extruder is equipped with a heating rod. The left end of the spiral tube is connected to a conduit. The upper end of the main tube is inserted into the conduit and rotatably connected to it. The main tube is rotatably connected to the feeding cylinder. The main tube is provided with multiple branch pipes, and the branch pipes are provided with multiple air outlets. The feeding cylinder is equipped with a rotating mechanism for driving the main tube to rotate. The left end of the extruder is connected to a diverter pipe, which is connected to two molding mechanisms. A guide frame is provided above the molding mechanism, and a winding mechanism is provided on the left side of the guide frame on the ground.

[0006] Preferably, the rotating mechanism includes a first motor, a driving wheel, a driven wheel, and a transmission belt. The first motor is fixed to the side of the feeding cylinder, and the driving wheel is fixed on the output shaft of the first motor. The driving wheel is connected to the driven wheel via the transmission belt, and the driven wheel is fixed to the main tube.

[0007] Preferably, the molding mechanism includes: an outer shell, a mandrel, a molding cavity, a high-pressure air pump, an air supply pipe, and an air inlet. The mandrel is fixed inside the outer shell, and a molding cavity is formed between the outer shell and the mandrel. An air inlet is provided inside the mandrel. A high-pressure air pump is provided below the outer shell on the ground, and the air outlet of the high-pressure air pump is connected to an air supply pipe inserted into the air inlet.

[0008] Preferably, the winding mechanism includes a base, a second motor, and a winding roller. The base is fixed to the ground, and the second motor is fixed on the base. The output shaft of the second motor is fixed to the winding roller.

[0009] The beneficial effects of this utility model are as follows: In use, this high-efficiency multi-head blown film machine involves adding plastic granules into the feeding cylinder. The plastic is heated by an electric heating wire. Simultaneously, a blower blows air into the spiral tube, which is heated by an electric heating rod. The hot air then enters the main tube through a duct and is discharged back into the feeding cylinder through an air outlet to heat the plastic granules. The hot air carries away moisture from the plastic granules. Simultaneously, a first motor drives the drive wheel, driven wheel, and transmission belt to rotate. The driven wheel drives the main tube and branch tube to rotate, and the branch tube heats the plastic granules. The plastic granules are agitated to ensure greater uniformity and facilitate the removal of moisture. The granules gradually fall from the bottom of the feeding cylinder into the extruder, where they are heated and melted. The high-temperature liquid plastic enters the two forming chambers through the distribution pipe, forming a cylindrical plastic preform. Simultaneously, a high-pressure air pump blows gas into the preform, causing it to expand. The plastic film then moves upwards, passes through the guide frame, and is gradually extruded into a thin film. The front end of the plastic film is wound onto a take-up roller, which is driven by a second motor to rotate, thus winding the film. In summary, this invention effectively dries the moisture in the raw material, preventing moisture from affecting the quality of the subsequently formed film. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0011] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0012] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0013] Figure 4 This is an internal cross-sectional view of the upper feed cylinder in this utility model.

[0014] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0015] Figure 6 This is a partial structural diagram of the present invention. Figure 3 .

[0016] Figure 7 This is a partial structural diagram of the present invention. Figure 4 .

[0017] Legend:

[0018] 1. Extruder; 2. Feeding cylinder; 3. Drying and dehydration mechanism; 301. Blower; 302. Spiral tube; 303. Heating rod; 304. Conduit; 305. Main tube; 306. Branch tube; 307. Air outlet; 308. Rotating mechanism; 3081. First motor; 3082. Drive wheel; 3083. Driven wheel; 3084. Transmission belt; 4. Diverter pipe; 5. Molding mechanism; 501. Outer shell; 502. Mandrel; 503. Molding cavity; 504. High-pressure air pump; 505. Air supply pipe; 506. Air outlet; 6. Guide frame; 7. Winding mechanism; 701. Base; 702. Second motor; 703. Winding roller; 8. Heating wire. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Specific implementation examples are given below.

[0021] See Figures 1-7In this embodiment of the present invention, a high-efficiency multi-head blown film machine includes an extruder 1, a feeding cylinder 2, a drying and dehydration mechanism 3, a diverter pipe 4, a forming mechanism 5, a guide frame 6, a winding mechanism 7, and a heating wire 8. The extruder 1 is fixed with and connected to the feeding cylinder 2 (the extruder 1 adopts an existing technology product). The heating wire 8 is fixed inside the feeding cylinder 2. The drying and dehydration mechanism 3 extends into the feeding cylinder 2 and includes a blower 3. 01. A spiral tube 302, an electric heating rod 303, a conduit 304, a main tube 305, a branch pipe 306, an air outlet 307, and a rotating mechanism 308 are included. The blower 301 is mounted on the ground, and its air outlet is connected to the spiral tube 302. The electric heating rod 303 is installed inside the spiral tube 302. The left end of the spiral tube 302 is connected to the conduit 304. The upper end of the main tube 305 is inserted into and rotatably connected to the conduit 304. The main tube 305 is rotatably connected to the feeding cylinder 2. The main tube 305 is provided with multiple branch tubes 306, and the branch tubes 306 are provided with multiple air outlets 307. The feeding cylinder 2 is equipped with a rotating mechanism 308 for driving the main tube 305 to rotate. The rotating mechanism 308 includes: a first motor 3081, a driving wheel 3082, a driven wheel 3083, and a transmission belt 3084. The first motor 3081 is fixed to the side of the feeding cylinder 2. The driving wheel 3082 is fixed on the output shaft of the first motor 3081. The driving wheel 3082 is connected to the driven wheel 3083 through the transmission belt 3084. The driven wheel 3083 is fixed to the main tube 305. The left end of the extruder 1 is connected to a diversion pipe 4. The diversion pipe 4 is connected to two forming mechanisms 5. A guide frame 6 is provided above the forming mechanism 5. A winding mechanism 7 is provided on the left side of the guide frame 6 on the ground.

[0022] The molding mechanism 5 includes: an outer shell 501, a core rod 502, a molding cavity 503, a high-pressure air pump 504, an air supply pipe 505, and an air blowing port 506. The core rod 502 is fixed inside the outer shell 501, and the molding cavity 503 is formed between the outer shell 501 and the core rod 502. An air blowing port 506 is provided inside the core rod 502. The high-pressure air pump 504 is provided below the outer shell 501 on the ground. The air outlet of the high-pressure air pump 504 is connected to the air supply pipe 505 inserted into the air blowing port 506. In use, the diverter pipe 4 transports liquid plastic into the molding cavity 503 to form a cylindrical plastic preform. At the same time, the high-pressure air pump 504 blows gas into the plastic preform to make it expand.

[0023] The winding mechanism 7 includes a base 701, a second motor 702, and a winding roller 703. The base 701 is fixed to the ground, and the second motor 702 is fixed on the base 701. The output shaft of the second motor 702 is fixed to the winding roller 703. In use, the front end of the film is wound onto the winding roller 703, and the second motor 702 drives the winding roller 703 to rotate, thereby winding the film.

[0024] All of the above electrical components are controlled by a PLC controller (not shown in the figure).

[0025] Working Principle: In operation, this high-efficiency multi-head blown film machine feeds plastic granules into the feeding cylinder 2. Heating wire 8 heats the plastic, while a blower 301 blows air into the spiral tube 302. The airflow is heated by a heating rod 303. The hot air then enters the main tube 305 through the conduit 304 and is discharged back into the feeding cylinder 2 through the air outlet 307 to heat the plastic granules. The hot air carries away moisture from the plastic granules. Simultaneously, a first motor 3081 drives the drive wheel 3082, driven wheel 3083, and transmission belt 3084 to rotate. The driven wheel 3083 then drives the main tube 305 and branch tube 306 to rotate. The plastic granules are agitated through the branch pipe 306 to make them more uniform and to fully remove moisture from them. The plastic granules gradually fall from the bottom of the feed cylinder 2 into the extruder 1. The extruder 1 heats and melts the plastic. The high-temperature liquid plastic enters the two forming cavities 503 through the diversion pipe 4 to form a cylindrical plastic preform. At the same time, gas is blown into the plastic preform by the high-pressure air pump 504 to make it expand. Then, the plastic film moves upward and passes through the guide frame 6 and is gradually squeezed into a thin film. The front end of the plastic film is wound onto the take-up roller 703. The second motor 702 drives the take-up roller 703 to rotate, and the film is wound up by the rotation of the take-up roller 703.

[0026] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high efficiency multi-head film blowing machine characterized in that, Including extruder (1), feeding cylinder (2), drying dehydration mechanism (3), shunt pipe (4), forming mechanism (5), guide frame (6), winding mechanism (7) and electric heating wire (8), the extruder (1) is fixed with the feeding cylinder (2) that is connected with it, the electric heating wire (8) is fixed in the feeding cylinder (2), the drying dehydration mechanism (3) extends into the feeding cylinder (2), the drying dehydration mechanism (3) includes: air blower (301), spiral pipe (302), electric heating rod (303), catheter (304), main pipe (305), branch pipe (306), air outlet (307) and rotating mechanism (308), the air blower (301) is arranged on the ground, the air outlet of the air blower (301) is connected with the spiral pipe (302), the electric heating rod (303) is installed in the spiral pipe (302), the left end of the spiral pipe (302) is connected with the catheter (304), the upper end of the main pipe (305) is inserted into the catheter (304) and is rotatably connected with it, the main pipe (305) is rotatably connected with the feeding cylinder (2), a plurality of branch pipes (306) are arranged on the main pipe (305), a plurality of air outlets (307) are arranged on the branch pipe (306), the rotating mechanism (308) for driving the main pipe (305) to rotate is installed on the feeding cylinder (2), the left end of the extruder (1) is connected with the shunt pipe (4), the shunt pipe (4) is connected with two forming mechanisms (5), the upper portion of the forming mechanism (5) is provided with the guide frame (6), and the winding mechanism (7) is arranged on the ground on the left side of the guide frame (6).

2. The high-efficiency multi-head film blowing machine according to claim 1, characterized in that, The rotating mechanism (308) includes: first motor (3081), driving wheel (3082), driven wheel (3083) and transmission belt (3084), the first motor (3081) is fixed on the side of the feeding cylinder (2), the output shaft of the first motor (3081) is fixed with the driving wheel (3082), the driving wheel (3082) is drivingly connected with the driven wheel (3083) through the transmission belt (3084), and the driven wheel (3083) is fixed on the main pipe (305).

3. The high-efficiency multi-head film blowing machine according to claim 1, characterized in that, The forming mechanism (5) includes: outer shell (501), core rod (502), forming cavity (503), high-pressure gas pump (504), gas pipe (505) and blowing port (506), the core rod (502) is fixed in the outer shell (501), the forming cavity (503) is formed between the outer shell (501) and the core rod (502), the blowing port (506) is arranged in the core rod (502), the high-pressure gas pump (504) is arranged on the ground below the outer shell (501), and the gas pipe (505) inserted into the blowing port (506) is connected to the gas outlet end of the high-pressure gas pump (504).

4. The high-efficiency multi-head film blower of claim 1, wherein, The winding mechanism (7) comprises a base (701), a second motor (702) and a winding roller (703), the base (701) is fixed on the ground, the second motor (702) is fixed on the base (701), and the output shaft of the second motor (702) is fixed with the winding roller (703).

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