KR20210147204A - Apparatus Manufacturing Heat-shrinkable tube for Wrapping of Processing Meat Product - Google Patents

Abstract

The present invention relates to a heat shrinkable film manufacturing apparatus for packaging meat products, which comprises: an extruder (1) that melts and extrudes synthetic resin raw materials; a stretching machine (2) for stretching an unstretched film (5) to have a required shrinkage rate while forming the raw material extruded from the extruder (1) into a film shape; a powder feeder (3) mounted on the stretching machine (2) and supplying the powder (6) while spraying the inside of the stretched film (5); and a transfer winder (4) for transferring and winding the stretched film (5) through the stretching machine (2). A powder layer is formed inside the film for meat packaging manufactured by the present invention, so as to minimize the friction between the two layers of film, thereby making it possible to easily spread the film when packing the meat product by inserting it into the meat packaging film. In addition, while the processed meat packaging film is heat-shrunk and the processed meat product is packaged, a direct contact between the film and the processed meat product is minimized in the state of being packaged by the powder (6) so as to prevent the processed meat product from sticking to the film during long-term storage, thereby preventing processed meat products from sticking to the film during long-term storage and easily and cleanly peeling off the packaging while maintaining the shape of processed meat products. This is to prevent excessive shrinkage of the heat shrink film during packaging to deform the shape of the packaged dairy product and to enhance the appearance of the packaged dairy product. Therefore, it is a very useful design that can increase the convenience of packaging work, as well as increase the purchase desire of consumers and manufacture a film for packaging of processed meat that improves the satisfaction of consumers after purchase.

Description

Heat-shrinkable film manufacturing apparatus for packaging meat products {Apparatus Manufacturing Heat-shrinkable tube for Wrapping of Processing Meat Product}

The present invention relates to an apparatus for manufacturing a heat shrinkable film for packaging processed meat products, and more particularly, it is designed to manufacture a heat shrinkable film for packaging processed meat products so that a powder layer is formed therein.

In general, packaging materials used for food packaging should have excellent gas and moisture barrier properties in order to prevent deterioration of the packaged product and minimize freshness deterioration.

In particular, meat products and meat products processed from meat contain a large amount of moisture and have a problem that they are easily deteriorated by ambient temperature, so they require refrigeration storage, and there is a disadvantage that freshness is easily reduced during the flow process.

Accordingly, in recent years, a heat shrinkable film that is contracted by heat is used as a packaging material for packaging processed meat products.

In other words, if a processed meat product is put in a heat shrink film and then heat is applied, it shrinks in the width and length directions at the shrinkage rate set during manufacture, while discharging the air inside and easily sealing and packaging the inside in a vacuum state. .

This heat-shrinkable film for packaging meat products is made of lukewarm sealing resin such as ethylene vinyl acetate (hereafter referred to as EVA; Ethylene Vinyl Acetate) so that it can be easily contracted even at low temperatures. Prevent product damage.

In addition, the heat-shrinkable film for packaging processed meat products includes an extruder that melts and extrudes synthetic resin raw materials in the same way as a conventional heat-shrinkable film manufacturing device, and the raw material extruded from this extruder is formed into a double film shape while forming an unstretched film. It consists of a stretching machine that stretches to have a required shrinkage rate, and a conveying winder that transports and winds the film produced through the stretching machine.

Meanwhile, in recent years, the heat shrinkable film is being shrunk after inserting the processed meat product therein and is being manufactured in a multi-layered structure to prevent the intrusion of external air and water in a closed state to maintain the freshness of the processed meat product for a long period of time.

However, since the conventional heat shrinkable film for packaging of processed meat products has a problem in that it is difficult to insert the processed meat product to be packaged by spreading the two layers apart by the frictional force since the two layers of the film are in close contact after being manufactured.

Therefore, the time the processed meat product is exposed to the outside during packaging is long, which has the disadvantage of lowering the freshness and lowering the working efficiency of the packaging operation.

In addition, when a processed meat product is inserted inside the heat shrinkable film for packaging of processed meat products and contracted, the film and processed meat products are closely adhered, so that when consumers remove the packaging to cook the packaged meat products, the processed meat products stick to the inner side of the film and fall off. In the case of excessive shrinkage, the processed meat product is pressurized by the shrinkage, and its shape is changed to deteriorate the appearance.

The purpose of the present invention is to form a powder layer that reduces the frictional force generated between the two layers of film inside after the heat shrink film is manufactured by installing a powder supply device that sprays powder on the inner side of the heat shrink film for packaging of processed meat products during stretching. It is to provide an apparatus for manufacturing a heat shrinkable film for packaging of processed meat products.

An object of the present invention is an extruder (1) for melting and extruding a synthetic resin raw material;

a stretching machine (2) for stretching the raw material extruded from the extruder (1) into a film shape while stretching the unstretched film (5) to have a required shrinkage rate;

a powder feeder (3) mounted on the stretching machine (2) and supplying the powder (6) while spraying the inside of the stretched film (5);

This is achieved by being constituted by a transfer winder 4 that transfers and winds the stretched film 5 through the stretching machine 2 .

That is, while the film 5 is being stretched through the stretching machine 2, the powder 6 is sprayed into the film 5 through the powder feeder 3, and a thin powder layer is formed on the inner surface of the heat shrinkable film to be manufactured. will be able to form.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

1 is a schematic diagram showing the apparatus for manufacturing a heat shrink film for packaging processed meat products of the present invention, and schematically shows a line for manufacturing a heat shrink film for packaging processed meat products manufactured while being transferred from an extruder through a stretching machine equipped with a powder feeder to a transfer winder. .

2 is a cross-sectional view showing the stretching machine according to the present invention, and shows the configuration of a vertical stretching means equipped with a powder feeder.

3 is an enlarged cross-sectional view showing the powder feeder of the present invention, showing that the powder feeder is mounted through the center of the film forming mold of the vertical stretching means.

Hereinafter, as shown in FIG. 1, the heat shrinkable film manufacturing apparatus of the present invention as shown in FIG. 1 includes an extruder 1 that melts and extrudes EVA resin raw materials that easily shrink even at a weakly heated temperature, and It consists of a stretching machine (2) for stretching the raw material extruded from the extruder (1), and a conveying winder (4) for transporting and winding the heat-shrinkable film stretched in the stretching machine (2) and manufactured.

That is, the EVA resin extruded by the extruder 1 is formed in the shape of the film 5 stretched to have a required shrinkage rate while passing through the stretching machine 2 , and heat shrinkage stretched through the stretching machine 2 . The film is transported and wound through the transport winder (4) and stored, and then transported to the packaging device in which the heat shrinkable film is used.

And the extruder (1) is included in the configuration of the present invention anything that extrudes and discharges the film raw material, and the transfer winder (4) includes a transfer roller (4a) for transferring the manufactured heat-shrinkable film, and the transferred heat shrinkage. A winding roller 4b for winding the film is provided, and the winding roller 4b is rotated by a motor and operated to wind the manufactured heat shrinkable film.

This extruder (1) and the transfer winding machine (4) is a known configuration and it is disclosed that it is included in the configuration of the present invention.

On the other hand, the stretching machine (2) is vertically discharged and a vertical stretching means (10) for primary stretching the film (5), and horizontally conveying the film (5) first stretched by the vertical stretching means (10) It is composed of a horizontal stretching means 20 for secondary stretching.

And the vertical stretching means 10 is mounted on the outlet of the extruder 1, as shown in Fig. 2, the inside is drilled downward through the outlet and the extruded film raw material has a predetermined diameter and a cylindrical shape having a thin thickness. A forming furnace (11a) for discharging to is formed, and a fluid supply pipe (11b) for supplying a heated fluid to the inside of the film (5) installed and discharged between the forming furnaces (11a) is installed in a film forming mold (11) class;

A vertical transfer path (12a) through which the film (5) molded and discharged from the film forming mold (11) passes while being vertically transported is vertically drilled, and a heated fluid is supplied to the vertical transfer path (12a) a heating unit 12 provided with a heating furnace 12b for heating the film 5 by applying a heated fluid to the outside of the film 5 passing through;

The size hole 14a forming the diameter size of the film 5 heated by the heating unit 12 includes a vertical sizing ring 14 penetrated from the top to the bottom, and the size of the vertical sizing ring 14 a cooling water tank 13 filled with cooling water for cooling the film 5 passing through the hole 14a;

A pinch roller 15a for pressing and transferring the film 5 passing through the vertical sizing ring 14 is mounted, and it consists of a storage tank 15 that can store water falling from the cooling water tank 13. do.

That is, the EVA resin extruded from the extruder 1 flows into the molding furnace 11a of the film molding die 11 and is vertically discharged to the lower part of the film molding die 11, and the discharged EVA resin is the molding furnace. It is formed into a cylindrical film 5 having a thin thickness and a constant thickness by (11a), and the shape of the outer diameter is maintained while being vertically discharged by the fluid supplied from the fluid supply pipe 11b.

And the film 5 molded in the forming furnace 11a and discharged to the lower portion is heated while passing through the heating unit 12 and stretched in the longitudinal direction by its own load to have a longitudinal shrinkage rate.

The film 5 passing through the heating unit 12 is cooled by the cooling water of the cooling water tank 13 while passing through the vertical sizing ring 14, the primary stretching is completed, and a pinch roller installed in the storage tank 15 ( It is transferred to the horizontal stretching means 20 through 15a).

In addition, the fluid used in the vertical stretching means 10 is usually used by heating air, and the heating temperature and supply pressure of this air change according to the diameter and shrinkage rate of the heat-shrinkable film to be formed, which is adjusted by the operator during manufacturing. It should be noted that this is possible and equivalent to known techniques.

On the other hand, the horizontal stretching means 20 includes a hot water tank 21 in which the hot water heated while passing the film 5 primarily stretched in the vertical stretching means 10 is stored;

It is composed of a plurality of guide rollers 22 each mounted to be rotatable at intervals inside the hot water tank 21 .

And the guide roller 22 is alternately mounted in a zigzag form, one at the upper part of the hot water tank 21 and one at the lower part, so as to increase the length of the film 5 in contact with the hot water inside the hot water tank 21 . It is preferable to do

That is, the film 5 first stretched by the vertical stretching means 10 passes through the inside of the hot water tank 21 while being pulled at the speed at which it is wound by the transfer winder 4, and in this process, the hot water tank 21 ) is heated by the hot water stored inside, and secondary stretching in the longitudinal direction is achieved.

In addition, the hot water in the hot water tank 21 has a temperature of about 70° C. and stretches the film 5, and this temperature is adjusted by the operator according to the speed at which the winding roller 4b of the transfer winder 4 is wound. It should be noted that this is possible and equivalent to known techniques.

On the other hand, the biggest feature of the present invention is that the stretching machine (2) is equipped with a powder feeder (3) for spraying the powder (6) into the film (5).

The powder feeder (3) is mounted on the film forming mold (11) of the vertical stretching means (10) and a storage hopper (30) having a storage space (30a) capable of storing the powder (6) therein;

Built in the film forming mold 11, one end is connected to the storage space 30a of the hopper, and the other end is drilled into the lower part of the film forming mold 11 and molded by the film forming mold 11 a powder supply pipe 31 for supplying the powder 6 into the film 5 discharged to the lower portion;

A control valve 32 mounted between one end of the powder supply pipe 31 and the storage space of the storage hopper 30 to control the amount of powder 6 stored in the storage space discharged to the powder supply pipe 31 . Wow;

It is installed through the inside of the powder supply pipe 31, one end protrudes to the outside of the storage hopper 30 and is connected to the rotary motor 33a, and the end protrudes below the film forming mold 11 and rotates the shaft (33) and;

Fan ( 34) is composed.

That is, while the film 5 is discharged to the lower part of the film forming mold 11 and stretched in the longitudinal direction, the control valve 32 is opened and the powder 6 stored in the storage hopper 30 passes through the powder supply pipe 31 . It will be supplied to the inside of the film (5) through.

And the powder 6 supplied to the inside of the film 5 is evenly scattered on the inner surface of the film 5 by the rotation of the fan 34 and the fluid supplied from the fluid supply pipe 11b, so that the horizontal stretching means 20 ) and the heat shrinkable film (5) on the inner side of which the production is completed through the transfer winding means.

A layer will be formed.

In addition, the powder 6 uses vegetable starch, such as sweet potato starch, which is harmless to the human body when eaten and does not affect the taste and freshness of processed meat products.

On the other hand, the heat-shrinkable film for packaging of processed meat products stretched in the stretching machine (2) is EVA, which is easily heat-shrinkable even at a low temperature in order to prevent deterioration of the processed meat products by the temperature heated to shrink the film (5) during packaging. Although manufactured using resin, this EVA resin has high gas permeability and low water resistance, making it difficult to store packaged food for a long period of time.

In order to solve this problem, a gas barrier resin coating machine 7 for coating the film 5 passing through the stretching machine 2 with a resin having excellent gas barrier properties between the stretching machine 2 and the transfer winding machine 4;

A waterproof resin coating machine (8) for coating the film (5) that has passed through the gas barrier resin coating machine (7) with a water-resistant resin is installed.

And the resin used for coating in the gas barrier resin coating machine 7 is ethylene vinyl alcohol (EVOH), which has the best gas barrier properties, and this ethylene vinyl alcohol has a particularly weak property to water, so that the gas barrier resin coating After that, the waterproof resin coating machine (8) coats the waterproof resin with a high waterproof rate and strong water resistance.

The waterproof resin used in the waterproof resin coating machine 8 mainly uses nylon resin, and in addition to this, any resin that is strong in water and has excellent waterproof properties can be used.

In this way, the heat shrinkable film for meat product packaging, which has been passed through the waterproof resin coating machine 8 and completed with gas barrier coating and waterproof coating, is wound on the winding roller 4b of the transport winder 4 and wound to a certain amount in a packaging factory or packaging for meat processing packaging. It will be transported to the location where the device is located.

According to the configuration of the present invention, a powder layer is formed inside the film for processed meat packaging to minimize friction between the two layers of film. it will be possible

In addition, the film for processed meat packaging is heat-shrinked to minimize direct contact between the film and the processed meat product in the state that the processed meat product is packaged in a powder state, thereby preventing the processed meat product from sticking to the film during long-term storage. The packaging can be peeled off easily and cleanly while maintaining its shape.

It is possible to prevent excessive shrinkage of the heat-shrink film during packaging to deform the shape of the packaged dairy product, and to enhance the appearance of the packaged dairy product.

Therefore, it is a very useful design that can increase the convenience of packaging work, as well as increase the purchase desire of consumers and manufacture a film for packaging of processed meat that improves the satisfaction of consumers after purchase.

1 is a schematic view showing a heat shrinkable film manufacturing apparatus for packaging meat products of the present invention
2 is a cross-sectional view showing a stretching machine according to the present invention;
Figure 3 is an enlarged cross-sectional view showing the powder feeder of the present invention;
*Explanation of major symbols in the drawing*
1: extruder 2: stretching machine
3: powder feeder 4: transfer winder
5: film 6: powder
7: Gas barrier resin coating machine 8: Waterproof resin coating machine
10: vertical stretching means 11: film forming mold
12: heating unit 13: cooling water tank
14: vertical sizing ring 15: storage tank
20: horizontal stretching means 21: hot water tank
22: guide roller 30: storage hopper
31: powder supply pipe 32: control valve
33: rotation shaft 34: fan

An object of the present invention is an extruder (1) for melting and extruding a synthetic resin raw material;

a stretching machine (2) for stretching the raw material extruded from the extruder (1) into a film shape while stretching the unstretched film (5) to have a required shrinkage rate;

a powder feeder (3) mounted on the stretching machine (2) and supplying the powder (6) while spraying the inside of the stretched film (5);

This is achieved by being constituted by a transfer winder 4 that transfers and winds the stretched film 5 through the stretching machine 2 .

That is, while the film 5 is being stretched through the stretching machine 2, the powder 6 is sprayed into the film 5 through the powder feeder 3, and a thin powder layer is formed on the inner surface of the heat shrinkable film to be manufactured. will be able to form.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.

1 is a schematic diagram showing the apparatus for manufacturing a heat shrink film for packaging processed meat products of the present invention, and schematically shows a line for manufacturing a heat shrink film for packaging processed meat products manufactured while being transferred from an extruder through a stretching machine equipped with a powder feeder to a transfer winder. .

2 is a cross-sectional view showing the stretching machine according to the present invention, and shows the configuration of a vertical stretching means equipped with a powder feeder.

3 is an enlarged cross-sectional view showing the powder feeder of the present invention, showing that the powder feeder is mounted through the center of the film forming mold of the vertical stretching means.

Hereinafter, as shown in FIG. 1, the heat shrinkable film manufacturing apparatus of the present invention as shown in FIG. 1 includes an extruder 1 that melts and extrudes EVA resin raw materials that easily shrink even at a weakly heated temperature, and It consists of a stretching machine (2) for stretching the raw material extruded from the extruder (1), and a conveying winder (4) for transporting and winding the heat-shrinkable film stretched in the stretching machine (2) and manufactured.

That is, the EVA resin extruded by the extruder 1 is formed in the shape of the film 5 stretched to have a required shrinkage rate while passing through the stretching machine 2 , and heat shrinkage stretched through the stretching machine 2 . The film is transported and wound through the transport winder (4) and stored, and then transported to the packaging device in which the heat shrinkable film is used.

And the extruder (1) is included in the configuration of the present invention anything that extrudes and discharges the film raw material, and the transfer winder (4) includes a transfer roller (4a) for transferring the manufactured heat-shrinkable film, and the transferred heat shrinkage. A winding roller 4b for winding the film is provided, and the winding roller 4b is rotated by a motor and operated to wind the manufactured heat shrinkable film.

This extruder (1) and the transfer winding machine (4) is a known configuration and it is disclosed that it is included in the configuration of the present invention.

Claims (4)

an extruder (1) for melting and extruding synthetic resin raw materials;
While forming the raw material extruded by the extruder 1 into a film shape, the unstretched film 5 is stretched to have the required shrinkage rate.
The stretching machine (2) and
a powder feeder (3) mounted on the stretching machine (2) and supplying the powder (6) while spraying the inside of the stretched film (5);
Processed meat product, characterized in that it is composed of a transfer winder (4) that transfers and winds the stretched film (5) through the stretching machine (2).
Heat shrinkable film manufacturing equipment for packaging.
The method according to claim 1, wherein the stretching machine is mounted on the outlet of the extruder (1) and is drilled downward through the outlet in the inside to discharge the extruded film raw material into a cylindrical shape having a certain diameter and a thin thickness (11a) is formed, and a film forming mold 11 provided with a fluid supply pipe 11b for supplying a heated fluid into the film 5 that is installed and discharged between the forming furnace 11a;
A vertical transfer path (12a) through which the film (5) molded and discharged from the film forming mold (11) passes while being vertically transported is vertically drilled, and a heated fluid is supplied to the vertical transfer path (12a) A heating unit 12 provided with a heating furnace 12b for heating the film 5 by applying a heated fluid to the outside of the film 5 passing through;
The size hole 14a forming the diameter size of the film 5 heated by the heating unit 12 includes a vertical sizing ring 14 penetrated from the top to the bottom, and the size of the vertical sizing ring 14 a cooling water tank 13 filled with cooling water for cooling the film 5 passing through the hole 14a;
A pinch roller 15a for pressing and transferring the film 5 passing through the vertical sizing ring 14 is mounted, and a storage tank 15 capable of storing water falling from the cooling water tank 13 is configured. a hot water tank 21 in which the hot water heated while passing the vertical stretching means 10 and the film 5 primarily stretched in the vertical stretching means 10 passes;
Heat-shrinkable film manufacturing apparatus for packaging meat products, characterized in that it comprises a horizontal stretching means (20) composed of a plurality of guide rollers (22) each mounted rotatably at intervals inside the hot water tank (21).
The storage space (30a) of claim 1 or 2, wherein the powder feeder (3) is mounted on the film forming mold (11) of the vertical stretching means (10) and can store the powder (6) therein. A storage hopper 30 is formed;
Built in the film forming mold 11, one end is connected to the storage space 30a of the hopper, and the other end is drilled into the lower part of the film forming mold 11 and molded by the film forming mold 11 a powder supply pipe 31 for supplying the powder 6 into the film 5 discharged to the lower portion;
A control valve 32 mounted between one end of the powder supply pipe 31 and the storage space of the storage hopper 30 to control the amount of powder 6 stored in the storage space discharged to the powder supply pipe 31 . Wow;
It is installed through the inside of the powder supply pipe 31, one end protrudes to the outside of the storage hopper 30 and is connected to the rotary motor 33a, and the end protrudes below the film forming mold 11 and rotates the shaft (33) and;
Fan ( 34), characterized in that the heat shrinkable film manufacturing apparatus for packaging meat products.
The gas barrier resin coating machine (7) according to claim 1 or 2, wherein the film (5) passing through the stretching machine (2) is coated with a resin having excellent gas barrier properties between the stretching machine (2) and the transfer winding machine (4) Wow;
A heat shrinkable film manufacturing apparatus for packaging meat products, characterized in that a waterproof resin coating machine (8) for coating the film (5) that has passed through the gas barrier resin coating machine (7) with a water-resistant resin is installed.

Images