CN102476439A - Multi-layer film co-extrusion zipper extruder - Google Patents

Abstract

The invention provides a multilayer film co-extrusion clip chain extruder, which is matched with an extruding device for forming a male clip chain and a female clip chain on a bag body in the process of manufacturing a multilayer film bag body, wherein at least two groups of bag body extruding units are correspondingly connected to a die head for extruding plastics with different characteristics to the die head to be converged to form the multilayer film bag body; therefore, the multilayer film bag body with the clamping chain buckle strip can be manufactured at one time, and the aim of simplifying the processing procedure is fulfilled.

Description

Multi-layer film co-extrusion zipper extruder

technical field

The invention relates to a multi-layer film co-extrusion zipper extruder, in particular to an extruder that can be co-extruded into a multi-layer film bag with a zipper buckle at one time. There is a device for extruding and blowing the multi-layer film bag body and a device that can be combined with the male and female clip chain buckles for the corresponding multi-layer film bag body extrusion to achieve the one-time processing effect of co-extrusion.

Background technique

Packaging bags are widely seen in daily life. In addition to the function of regulating the packaged objects in the bag, they also have the functions of using methods, ingredients, labels, and even beautiful visual appeal. Therefore, today, Packaging bags are available in a wide variety of designs.

In recent years, the concept of environmental protection has become prevalent. Biotechnology food, organic food, snack food and pet feed, and food industry pursue environmental protection. In addition to emphasizing the characteristics of food such as beauty, freshness, preservation, moisture resistance and fragrance retention, they also hope to reduce costs. The goal, therefore, is the derivation of multi-layer film packaging bags. When it comes to multi-layer film packaging bags, it needs to consider certain characteristics, such as isolation, waterproof, breathability, softness, high barrier properties, and gas barrier properties. , impact resistance, high temperature resistance, chemical resistance and other superior characteristics to achieve product protection function, and in addition to protecting the product, the printing problem after the bag body is made is also an important part, so basically the multilayer film bag is A bag body made by laminating various plastic properties to meet the needs of various products.

In addition, when the multi-layer film bag is used with products, it can be designed with various bag sealing, such as easy-tear seal, laser easy-tear, vacuum seal or zipper bag, etc., and the zipper buckle corresponds to In the production of multi-layer film bags, the zipper buckles that have been made are usually sewn on the bag mouth after the multi-layer film bag manufacturing process. Therefore, it is necessary to go through multiple processing procedures to achieve the complete bag body.

In view of this, the present inventor, in view of the disadvantages of existing multi-layer film zipper bags such as difficulty in forming and time-consuming processing, based on his many years of experience in manufacturing and design in related fields and the assistance of knowledge, and through various ingenuity, researched Create the present invention, thereby in order to have the purpose of better practical value.

Contents of the invention

The purpose of the present invention is to provide a kind of extruding equipment that can be co-extruded into a multi-layer film bag with clip chain buckle at one time, which is equipped with a device for extruding and blowing the multi-layer film bag on the die head And it can correspond to the device of multi-layer film bag extrusion combined with male and female clip chain buckles to achieve the one-time processing effect of co-extrusion.

In order to achieve the above purpose, the present invention provides a multilayer film co-extrusion zipper extruder, which includes at least two groups of bag feeding units, die heads and two zipper extruder units, which are used for making multilayer film bags. During the process, at the same time cooperate with the extruding device that forms the male and female clip chains on the bag body, in which at least two groups of bag body feeding units are connected to the die head correspondingly, so as to extrude plastics with different characteristics to the die head and assemble them. Form a multi-layer film bag body, and correspond to the guide zipper extrusion unit at the appropriate position of the die head that produces the multi-layer film bag body, so that the templates that can form male and female zipper chain buckles set in the die head can cooperate with the zipper chain The unit is extruded, and the male and female zipper buckles are combined on the multi-layer film bag body; thereby, the multi-layer film bag body with the zipper buckle can be manufactured at one time, and the purpose of simplifying the manufacturing process is achieved.

In the multi-layer film co-extrusion zipper extruder proposed by the present invention, its die head further includes a main mold base that guides the bag feeding unit, an outer mold base combined with the main mold base, and is arranged inside the outer mold base and allows Plastics with different characteristics are combined into one mold core and a template with male and female zipper fastener forming holes above the mold core. Through the above structure, the multi-layer film bag body with zipper fastener strips can pass through the The mold head is made at one time.

In the multi-layer film co-extrusion zipper extruder proposed by the present invention, the outer mold base on the die head is further provided with two injection holes at the male and female zipper buckle forming holes of the mold core and the template, and the two injection holes respectively Correspondingly connect the two zipper extrusion units so that the male and female zipper buckles can be combined on the multi-layer film bag body.

Description of drawings

The following drawings are only intended to illustrate and explain the present invention schematically, and do not limit the scope of the present invention. in:

Fig. 1 is the three-dimensional appearance schematic diagram of the present invention;

Fig. 2 is the overall side sectional schematic diagram of the present invention;

Fig. 3 is the exploded schematic diagram of die head of the present invention;

Fig. 4 is a schematic cross-sectional view of a die head of the present invention;

Fig. 5 is a schematic top view of the present invention;

Fig. 6 is a schematic diagram of the production of the present invention.

Explanation of main component labels:

1 bag feeding unit 2 die head

21 Main mold base 211 Runner

22 Outer mold holder 221 Injection hole

23 mold core 231 main channel

24 Template 241 Forming hole for male clip chain buckle

242 Forming hole for female clip chain buckle 3 Clip chain extrusion unit

A Multi-layer film bag body B1 Male clip chain buckle

B2 female zipper buckle

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

First, please refer to Figures 1 to 6, which provide a schematic diagram of a multi-layer film co-extrusion zipper extruder according to the present invention, which mainly includes at least two groups of bag feeding unit 1, die head 2 and zipper extruder Unit 3, where:

At least two groups of bag feeding units 1 are correspondingly connected to the die head 2, and the die head 2 includes a main mold base 21 leading to the bag feeding unit 1, an outer mold base 22 combined with the main mold base 21, and a A mold core 23 located inside the outer mold base 22 and a template 24 located on the side of the mold core 23 and having male and female clip fastener forming holes 241, 242, and the outer mold base 22 corresponds to the male core 23 and the template 24. 1. Two injection holes 221 are provided at the female zipper buckle forming holes 241 and 242, and the two injection holes 221 are correspondingly connected to the zipper extruding unit 3, thereby allowing multiple bag feeding units 1 to extrude different characteristics The plastics are combined to the die head 2 to form a multi-layer film bag body A. At the same time, the co-extrusion plastics are co-extruded in the multi-layer film bag body A process with the zipper extrusion unit 3. The templates 24 for forming the holes 241 and 242 of the female zipper fasteners are used to combine the male and female zipper fastener strips B1 and B2 on the multi-layer film bag body A.

Please also refer to Figures 1 to 6. During production, firstly, on the main mold base 21 of the die head 2, a plurality of groups of bag feeding units 1 are correspondingly connected, and each bag feeding unit 1 All correspond to the flow channels 211 on the main mold base 21, and correspondingly extrude different plastics, and many flow channels 211 are diverted to the outer mold base 22 and the mold core 23, and then can converge into a main flow channel 231, so that different The characteristic plastics converge to form a multi-layer film bag body A; then, the outer mold base 22 is provided with two injection holes 221 corresponding to the male and female clip fastener forming holes 241 and 242 of the mold core 23 and template 24, The two injection holes 221 respectively guide the two clip chain extruding units 3, and the two clip chain extruding units 3 squeeze plastic through the injection holes 221, and flow through the male and female clip chain button forming holes 241, 242 of the template 24 to squeeze out plastic. The male and female zipper buckles B1, B2 are combined together with the multi-layer film bag A extruded from the main channel 231 at the same time. In this way, multiple bag feeding units 1 are connected to the die head 2 With the zipper extruding unit 3, through the template 24 that can form the male and female zipper buckles B1 and B2 in the die head 2, the bag body feeding unit 1 and the zipper extruding unit 3 are co-extruded. Combine the male and female zipper buckles B1 and B2 on the multilayer film bag body A.

Through the above description, the composition and use of the element can be seen, compared with the prior art, the present invention has many advantages, and its main purpose is to provide a multi-layer film that can be co-extruded into a clip fastener The extrusion equipment of the bag body is equipped with a device for extruding and blowing the multi-layer film bag on the die head and a device for extruding the multi-layer film bag and combining the male and female zipper buckles to achieve One-time processing effect made by co-extrusion; to improve the lack of multiple processing of traditional manufacturing process that needs to be made into multi-layer film bag body and male and female clip chain buckles separately, and then sewed.

The above descriptions are only illustrative specific implementations of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the protection scope of the present invention.

Claims (3)

1. a multilayer film co-extrusion clip chain extruder is characterized in that, said multilayer film co-extrusion clip chain extruder includes at least two group bags and gives as security material unit, die head and two clip chain extrusion unit, wherein:

Give as security the die head that the material unit correspondence is linked to extruder by at least two group bags; The knot that converges for plastics to the die head that squeezes the extrusion different qualities is processed the multilayer film bag; And the die head appropriate location correspondence in making the multilayer film bag connects clip chain extrusion unit; The template of the set male and female clip chain profile that can be shaped cooperates the co-extrusion action of clip chain extrusion unit in the die head to let, and male and female clip chain profile is incorporated on the multilayer film bag.

2. multilayer film co-extrusion clip chain extruder as claimed in claim 1; It is characterized in that this die head includes and connects that bag is given as security main die holder, the outer mould base that combines with main die holder of material unit, to be set in outer mould base inner and let the plastics of different qualities converge to tie and one die and is positioned at above the die and have the template of male and female clip chain button shaped hole.

3. multilayer film co-extrusion clip chain extruder as claimed in claim 2 is characterized in that, this outer mould base is provided with two hand-holes corresponding to the male and female clip chain button shaped hole place of die and template, and by two hand-holes respectively correspondence connect two clip chain extrusion unit.

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