CN206623392U - Three-layer co-extruded inflation film manufacturing machine - Google Patents

Abstract

The utility model relates to a three-layer co-extrusion film blowing machine, which comprises a conveying unit, a hot-melt unit, a die opening, a tuyere, a lifting roller, a guide roller group, a material cutting knife and a material receiving unit. The three-layer co-extrusion film blowing machine provided by the utility model has a good forming effect. The three-layer co-extrusion film structure is formed through the die head, and the cylindrical film material is blown to form a film bubble by using the air blower to adjust the thickness. The thickness-adjusted film material is blown to the next process. In addition, in the film bubble storage stage, the cutting knife is used to cut the starting material into two layers of film and side material, and store them separately, realizing a high degree of automation.

Description

Three-layer co-extrusion blown film machine

technical field

The utility model relates to a film blowing machine, in particular to a three-layer co-extrusion film blowing machine.

Background technique

The film blowing machine is a device that heats and melts plastic particles and blows them into films. There are many kinds of film blowing machines. According to the raw materials, there are PE blown film, POF blown film, PVC blown film and mixed blown film. According to the blown film structure, there are three-layer co-extrusion blown film machine and five-layer co-extrusion blown film machine. Wait. The new material is blown out with brand-new particles, the color is uniform, clean, and the bag stretches well.

Existing film blowing machines, especially three-layer co-extrusion film blowing machines, have poor molding effect and low degree of automation.

Utility model content

The primary purpose of the utility model is to provide a highly automatic three-layer co-extrusion film blowing machine with good molding effect. For realizing the above object, the concrete scheme of the present utility model is as follows:

A three-layer co-extrusion blown film machine, including a conveying unit, a hot-melt unit, a die opening, a tuyere, a lifting roller, a guide roller group, a cutting knife and a receiving unit;

The output end of the conveying unit is connected to the input end of the hot-melt unit for transporting raw material particles into the hot-melt unit;

The output end of the hot-melt unit is provided with the die opening and the air blowing port, wherein the die opening is ring-shaped, and is used to output the hot-melted raw material as a cylindrical film material, and the air blowing port is used for blowing the film material and transporting it to the pulling roll;

The pulling roller includes a driving roller and a driven roller, and the driving roller and the driven roller are used to extrude the cylindrical film material conveyed to it into a flat shape and convey it to the guide roller group;

The conveying stroke of the guide roller group is provided with the material cutting knives, at least two of the material cutting knives are respectively located near the two edges of the flat film material, so that the flat film material The film material is cut into two pieces of film and side material;

The receiving unit is provided with at least two groups to store the cut two pieces of film respectively.

Preferably, the conveying unit includes a barrel, a feeding funnel, and a screw blade shaft;

The feed funnel is arranged on the top of the barrel and communicated with the barrel to transport the raw material particles into the cavity in the barrel;

The screw blade shaft is located in the cavity inside the barrel, and the screw blade shaft is connected with a driving device outside the barrel for transporting the raw material particles to the hot-melt unit.

Preferably, the pulling roller further includes an embossing roller, and the embossing roller is in wheel-surface contact with the driving roller, so as to emboss the film material extruded into a flat shape.

Preferably, the material receiving unit further includes a storage tube provided with a negative pressure hole, so as to suck the trim formed after material cutting into the storage tube.

The three-layer co-extrusion film blowing machine provided by the utility model has a good forming effect. The three-layer co-extrusion film structure is formed through the die head, and the cylindrical film material is blown to form a film bubble by using the air blower to adjust the thickness. The thickness-adjusted film material is blown to the next process. In addition, in the film bubble storage stage, the cutting knife is used to cut the starting material into two layers of film and side material, and store them separately, realizing a high degree of automation.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model, constitute a part of the application, and do not constitute an improper limitation of the utility model. In the accompanying drawings:

Fig. 1 is the structural representation of the utility model.

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the utility model are used to explain the utility model, but not as a limitation to the utility model.

Example

As shown in Figure 1, a three-layer co-extrusion blown film machine includes a conveying unit 1, a hot-melt unit 2, a die opening 3, a tuyere 4, a lifting roller 5, a guide roller group 6, a cutting knife 7 and a receiving unit. material unit 8; the output end of the conveying unit 1 is connected to the input end of the hot-melt unit 2, and is used to transport raw material particles into the hot-melt unit 2; the output end of the hot-melt unit 2 is provided with The die opening 3 and the tuyere 4, wherein the die opening 3 is annular, are used to output the hot-melted raw material as a cylindrical film material 100, and the tuyere 4 is used to transport the film material 100 is inflated and transported to the pulling roller 5; the pulling roller 5 is installed on the frame, including a driving roller and a driven roller, and the driving roller and the driven roller are used to transport the cylindrical The film material 100 is extruded into a flat shape, and delivered to the guide roller group 6; There are at least two handles, which are respectively located near the two edge positions of the flat film material 100, so as to cut the flat film material 100 into two pieces of film 101 and side material 102; the receiving unit 8 At least two groups are provided and installed on the frame to store the cut two films 101 respectively.

Specifically, in the scheme of this embodiment, the conveying unit 1 includes a barrel 11, a feed funnel 12, and a screw blade shaft (not marked); the feed funnel 12 is arranged on the top of the barrel 11, and Said barrel 11 communicates to deliver raw material particles into the cavity in said barrel 11; said screw blade shaft is located in the cavity in said barrel 11, and said screw blade shaft is located in said barrel 11. The driving device 13 outside the barrel is connected to transport the raw material particles to the hot-melt unit 2 .

As an improvement of the above-mentioned embodiment, the pulling roller 5 further includes an embossing roller 51, and the embossing roller 51 is in wheel-surface contact with the driving roller to emboss the extruded flat film material 100 , to meet product demand.

As an improvement to the above-mentioned embodiment, the receiving unit 8 also includes a storage cylinder 81 provided with a negative pressure hole, so as to suck the edge material formed after material cutting into the storage cylinder 81, so as to realize the automatic collection of the edge material .

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (3)

1. A three-layer co-extrusion film blowing machine, characterized in that: Including conveying unit, hot-melt unit, die opening, tuyere, lifting roller, guide roller set, cutting knife and receiving unit; The output end of the conveying unit is connected to the input end of the hot-melt unit for transporting raw material particles into the hot-melt unit; The output end of the hot-melt unit is provided with the die opening and the air blowing port, wherein the die opening is ring-shaped, and is used to output the hot-melted raw material as a cylindrical film material, and the air blowing port is used for blowing the film material and transporting it to the pulling roll; The pulling roller includes a driving roller and a driven roller, and the driving roller and the driven roller are used to extrude the cylindrical film material conveyed to it into a flat shape and convey it to the guide roller group; The conveying stroke of the guide roller group is provided with the material cutting knives, at least two of the material cutting knives are respectively located near the two edges of the flat film material, so that the flat film material The film material is cut into two pieces of film and side material; The receiving unit is provided with at least two groups to store the cut two films respectively; The material receiving unit also includes a storage tube provided with a negative pressure hole, so as to suck the edge material formed after material cutting into the storage tube. 2. The three-layer co-extrusion blown film machine as claimed in claim 1, characterized in that: The conveying unit includes a barrel, a feeding funnel, and a screw blade shaft; The feed funnel is arranged on the top of the barrel and communicated with the barrel to transport the raw material particles into the cavity in the barrel; The screw blade shaft is located in the cavity inside the barrel, and the screw blade shaft is connected with a driving device outside the barrel for transporting the raw material particles to the hot-melt unit. 3. The three-layer co-extrusion blown film machine as claimed in claim 1, characterized in that: The pulling roller also includes an embossing roller, which is in wheel-surface contact with the driving roller, so as to emboss the extruded flat film material.