Film blowing machine for plastic production

Abstract

The utility model discloses a film blowing machine for plastic production, which relates to the technical field of film blowing machines and comprises a machine body, a heating layer is arranged between the machine body and an inner cavity, a stirring mechanism is rotatably mounted in the machine body, the bottom end of the machine body is communicated with a film blowing pipe through a discharge pipe, and a heating ring is arranged on the outer surface of the film blowing pipe. Raw materials are preheated through the heating layer, the raw materials are stirred and mixed through the stirring mechanism, the heating layer and the stirring mechanism work cooperatively, in the stirring process of the stirring mechanism, the raw materials can be continuously turned over, heat emitted by the heating layer can make more sufficient contact with the raw materials, the melting speed of the raw materials is increased, meanwhile, stirring can break heat resistance in the raw materials, and the melting speed of the raw materials is increased. Heat can be more evenly transmitted to all parts of raw materials, the melting efficiency and quality of the raw materials are further improved, the spiral heating ring is arranged on the outer surface of the film blowing pipe, the heating area is increased through the spiral design, and the raw materials in the film blowing pipe can be more evenly heated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blowing film machine technical field, concretely relates to a plastic production blowing film machine. BACKGROUND

[0002] The blowing film machine is the machine that blows into the film after the plastic particle is heated and melts. The film produced by the blowing film machine is suitable for various high-grade film packaging. The film is widely applied to light and heavy packaging, such as various fresh fruits, meat food, medical supplies and the like due to its good barrier property, preservation, moisture prevention, frost prevention, oxygen isolation and oil resistance.

[0003] The traditional plastic tape extrusion blowing film machine cannot pretreat plastic raw materials when being used, the melting time of plastic raw materials is long, production efficiency is affected, and the existing extrusion device uses a screw pushing mode, the mixing space of materials is limited, plastic particles cannot be mixed well, the composition distribution of molten materials extruded from the extrusion device is uneven, and the quality of the formed plastic tape is affected. TECHNICAL SOLUTION

[0004] To solve the above technical problems, a plastic production blowing film machine is provided, which solves the problems of the traditional plastic tape extrusion blowing film machine in the background art, i.e. the plastic raw materials cannot be pretreated when being used, the melting time of the plastic raw materials is long, the production efficiency is affected, the existing extrusion device uses a screw pushing mode, the mixing space of materials is limited, the plastic particles cannot be mixed well, the composition distribution of molten materials extruded from the extrusion device is uneven, and the quality of the formed plastic tape is affected.

[0005] To achieve the above purposes, the utility model adopts the technical scheme that:

[0006] A plastic production blowing film machine, comprising a machine body, a heating layer is arranged between the machine body and an inner cavity, a stirring mechanism is rotatably installed inside the machine body, a blow film tube is communicated with the machine body through a discharge pipe at the bottom end of the machine body, and a heating ring is arranged on the outer surface of the blow film tube.

[0007] Preferably, the stirring mechanism comprises a first motor, the output end of the first motor is fixedly installed at one end of a first rotating rod, three groups of stirring rod blades are arranged on the outer surface of the first rotating rod, and three groups of connecting rods are further arranged on the outer surface of the first rotating rod.

[0008] Preferably, the end portions of the three groups of connecting rods are fixedly installed at the inner sides of two groups of scrapers.

[0009] Preferably, a first material conveying blade is arranged on the other end surface of the first rotating rod, and the first material conveying blade is rotatably arranged in the discharge pipe.

[0010] Preferably, the inside of the film blowing pipe is rotatably provided with a second rotating rod, one end of the second rotating rod is provided at the output end of a second motor, and the outer surface of the second rotating rod is provided with a second material conveying blade.

[0011] Preferably, the heating coil is in a spiral shape, the heating coil is arranged in a heating box, and the heating box is sleeved on the outer surface of the film blowing pipe.

[0012] Preferably, the top end of the machine body is provided with a feeding hopper.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] Firstly, the raw materials are preheated by the heating layer, and the raw materials are mixed by the stirring mechanism, and the two work together. During the stirring process, the raw materials are continuously turned over, the heat emitted by the heating layer can be more fully contacted with the raw materials, the melting speed of the raw materials is accelerated, and meanwhile, the stirring can break the thermal resistance inside the raw materials, so that the heat can be more uniformly transmitted to each part of the raw materials, thereby further improving the melting efficiency and quality of the raw materials. Secondly, the spiral heating coil is arranged on the outer surface of the film blowing pipe, the heating area is increased by the spiral design, so that the raw materials in the film blowing pipe can be more uniformly heated, and meanwhile, the heating coil is arranged in the heating box, and the heating box is sleeved on the outer surface of the film blowing pipe, so that the heat loss can be effectively reduced, the heat energy utilization rate is improved, the production efficiency is further improved, and the stability of the molten materials is ensured, which is beneficial to produce high-quality plastic tapes. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is an appearance structure schematic view of the utility model;

[0016] Fig. 2 It is an internal structure schematic view of the utility model;

[0017] Fig. 3 It is a stirring mechanism schematic view of the utility model.

[0018] Reference numerals in the drawings are:

[0019] 1, machine body; 101, heating layer; 102, inner cavity; 103, discharge pipe; 104, feeding hopper;

[0020] 2, stirring mechanism; 201, first motor; 202, first rotating rod; 203, stirring blade; 204, connecting rod; 205, scraper; 206, first material conveying blade;

[0021] 3, film blowing pipe; 301, second rotating rod; 302, second motor; 303, second material conveying blade;

[0022] 4, heating box; 401, heating ring. DETAILED DESCRIPTION

[0023] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art.

[0024] Referring to Figs. 1-3 As shown in the figure, a plastic production film blowing machine comprises a machine body 1, the top end of the machine body 1 is provided with a feeding hopper 104, a heating layer 101 is arranged between the machine body 1 and an inner cavity 102, a stirring mechanism 2 is rotatably installed inside the machine body 1, the bottom end of the machine body 1 is communicated with a film blowing pipe 3 through a discharge pipe 103, the outer surface of the film blowing pipe 3 is provided with a heating ring 401, a second rotating rod 301 is rotatably installed inside the film blowing pipe 3, one end of the second rotating rod 301 is arranged at the output end of a second motor 302, the outer surface of the second rotating rod 301 is provided with a second feeding blade 303, the heating ring 401 is spiral-shaped, the heating ring 401 is arranged in a heating box 4, and the heating box 4 is sleeved on the outer surface of the film blowing pipe 3.

[0025] In the scheme, the second motor 302 drives the second rotating rod 301 to rotate, the second feeding blade 303 pushes the plastic from the inlet end to the outlet end of the film blowing pipe 3 in the rotating process, the spiral-shaped heating ring 401 is arranged on the outer surface of the film blowing pipe 3, and the stable plasticizing effect of the molten plastic is realized, the spiral-shaped heating ring 401 surrounds the film blowing pipe 3 in a manner, so that the heat is uniformly distributed and concentrated on the plastic in the pipe, and the molten state of the plastic is ensured in the flowing process.

[0026] Referring to Figs. 1-3 As shown in the figure, the stirring mechanism 2 comprises a first motor 201, the output end of the first motor 201 is fixedly installed at one end of a first rotating rod 202, the outer surface of the first rotating rod 202 is provided with three groups of stirring blades 203, the outer surface of the first rotating rod 202 is further provided with three groups of connecting rods 204, the end portions of the three groups of connecting rods 204 are fixedly installed at the inner sides of two groups of scrapers 205, the outer surface of the other end of the first rotating rod 202 is provided with a first feeding blade 206, and the first feeding blade 206 is rotatably arranged in the discharge pipe 103.

[0027] In the scheme, the first rotating rod 202 is driven to rotate by the first motor 201, and three groups of stirring blades 203 are driven to fully stir the raw materials, so that the raw materials are uniformly melted under the heating action of the heating layer 101, and local overheating or unmelted phenomenon is avoided; secondly, the scraper 205 is fixed on the first rotating rod 202 through the connecting rod 204, so that the cleaning effect of the inner wall of the machine body 1 is realized; the scraper 205 is attached to the inner wall during rotation to scrape off the residual raw materials, so that the raw materials are prevented from adhering to cause fouling of the inner wall, so that the cleanliness and heat conduction efficiency of the machine body 1 are maintained, and the service life of the equipment is prolonged; and the first conveying blade 206 is driven to rotate by the first rotating rod 202, so that the molten plastic in the machine body 1 is pushed to the discharge pipe 103, and the material is sent to the film blowing pipe 3 through the discharge pipe 103, so that the forming quality and production efficiency of the film are improved.

[0028] The working principle of the utility model is: when the device starts, first, the raw materials enter the inner cavity 102 of the machine body 1 through the feeding hopper 104, and the heating layer 101 heats the raw materials to melt them; the first rotating rod 202 is driven to rotate by the first motor 201, and three groups of stirring blades 203 are driven to fully stir the raw materials, so that the raw materials are uniformly melted; at the same time, the scraper 205 connected by the connecting rod 204 is attached to the inner wall of the machine body 1 and rotates to scrape off the residual raw materials to prevent fouling; the molten plastic is pushed to the discharge pipe 103 by the first conveying blade 206 and enters the film blowing pipe 3; in the film blowing pipe 3, the second rotating rod 301 is driven to rotate by the second motor 302, and the second conveying blade 303 pushes the plastic from the inlet end to the outlet end; the spiral heating coil 401 in the heating box 4 surrounds the film blowing pipe 3, so that the heat is uniformly distributed and concentrated on the plastic in the pipe, so that the plastic maintains a molten state during flow, so that stable plasticizing effect is realized; finally, the molten plastic forms a film through the outlet of the film blowing pipe 3.

[0029] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model; various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A blown film production machine for plastics, comprising a machine body (1), characterized in that, A heating layer (101) is provided between the machine body (1) and the inner cavity (102). A stirring mechanism (2) is rotatably installed inside the machine body (1). The bottom end of the machine body (1) is connected to the blown film pipe (3) through the discharge pipe (103). A heating ring (401) is provided on the outer surface of the blown film pipe (3).

2. The plastic film blowing machine according to claim 1, characterized in that: The stirring mechanism (2) includes a first motor (201), the output end of which is fixedly installed at one end of a first rotating rod (202). The outer surface of the first rotating rod (202) is provided with three sets of stirring rod blades (203), and the outer surface of the first rotating rod (202) is also provided with three sets of connecting rods (204).

3. A blown film production machine for plastics according to claim 2, characterized in that: The ends of the three sets of connecting rods (204) are all fixedly installed on the inner side of the two sets of scrapers (205).

4. A blown film production machine for plastics according to claim 2, characterized in that: The other end of the first rotating rod (202) is provided with a first conveying blade (206), which is rotatably disposed in the discharge pipe (103).

5. A blown film production machine for plastics according to claim 1, characterized in that: The blown film tube (3) is rotatably mounted with a second rotating rod (301). One end of the second rotating rod (301) is located at the output end of the second motor (302), and a second conveying blade (303) is provided on the outer surface of the second rotating rod (301).

6. A blown film production machine for plastics according to claim 1, characterized in that: The heating coil (401) is spiral-shaped and is installed inside the heating box (4), and the heating box (4) is fitted onto the outer surface of the blown film tube (3).

7. A blown film production machine for plastics according to claim 1, characterized in that: The top of the machine body (1) is provided with a feed hopper (104).

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