CN204264625U - A kind of PE polythene bag with valve port - Google Patents

Abstract

The utility model discloses a kind of PE polythene bag with valve port, comprise polythene bag body and valve mouth structure; It is characterized in that: described valve mouth structure is arranged perpendicular to polythene bag body; Described polythene bag body and described valve mouth structure inside are equipped with inner-tube structure; Described inner-tube structure is the closed inner-tube structure of liner; This PE plastic valve pocket of the utility model has the characteristic of high protection against the tide, high tensile; This PE plastic valve pocket, the nano-powder material of needs high moisture energy and the packaging of grain shape material can be applicable to, filling complete after at its valve port oral area heat sealing, form an inner sealing inner-tube structure, so just ensure that material can not make moist because of the moisture in air in the process of transporting and store, and the molecular structure of material is changed, stop the risk that material goes bad because making moist, improve material storage time and structure is simple, productive costs low be convenient to promote.

Description

A PE plastic bag with a valve port

technical field

The utility model relates to a PE plastic bag, in particular to a PE plastic bag with a valve port, which belongs to the technical field of packaging.

Background technique

At present, in the packaging industry, the valve bag is one of the bag types of the packaging bag. Its advantage is that the bag type has a valve port mechanism, which can be quickly opened and docked with the filling nozzle to improve the filling efficiency of the material. When filling, because the valve port is closely matched with the filling pipe, it has good airtightness, and the material cannot be strung out from between the valve port and the filling pipe, which effectively guarantees the cleanness of the working environment during filling, and the material filling After the installation is completed, the valve port will be automatically sealed to prevent material leakage, which is convenient for material handling and storage. This kind of packaging bag with a valve port mechanism is mainly aimed at packaging paper bags with a valve port mechanism; for PE plastic packaging bags with a valve port mechanism, currently It is still in a blank stage in the packaging industry. This kind of PE plastic packaging bag with a valve port mechanism is synthesized by using high-molecular PE materials, introducing advanced technology and advanced equipment. The PE plastic valve bag has the characteristics of high moisture resistance and high tensile strength. .

Contents of the invention

In order to make up for the deficiencies of the prior art, the utility model provides a high-molecular PE plastic bag with high moisture-proof performance, high tensile strength, and a valve port mechanism. The plastic bag can effectively keep the dryness of the materials inside;

In order to achieve the above object, the technical scheme that the utility model takes is:

A PE plastic bag with a valve port, including a plastic bag body and a valve port structure; it is characterized in that: the valve port structure is set perpendicular to the plastic bag body; the plastic bag body and the valve port structure are both set There is a liner structure.

The inner tank structure is a liner closed inner tank structure.

The valve port structure is a straight cylindrical valve port structure.

The material of the valve port structure is polymer PE plastic material.

The plastic bag body is provided with an L-shaped notch; the valve port structure is arranged in the L-shaped notch, and is heat-sealed with the plastic bag body to form an integral structure.

The left and right sides of the plastic bag body are respectively provided with a left side and a right side; the left side and the right side are both disposable thermoplastic compression molding.

The upper end and the bottom of the plastic bag body are respectively provided with an upper bottom and a lower bottom; the upper bottom and the lower bottom are provided with ironing threads.

Compared with the prior art, adopting the above-mentioned scheme, the beneficial effect of the utility model is: the PE plastic valve bag of the utility model has the characteristics of high moisture resistance and high tensile resistance; this PE plastic valve bag can meet the needs of high moisture-proof performance The packaging of nano-powder materials and granular materials is heat-sealed at the valve port after filling to form an inner closed liner structure, which ensures that the materials will not be damaged by air during transportation and storage. The molecular structure of the material changes due to moisture, which prevents the risk of deterioration of the material due to moisture, improves the storage time of the material, and has a simple structure and low production cost, which is easy to promote; this PE plastic valve bag can be suitable for high demand The packaging of nano-powder materials and granular materials with moisture-proof performance is heat-sealed at the valve port after filling to form an inner closed liner structure, which ensures that the materials will not be damaged during transportation and storage. The molecular structure of the material changes due to moisture in the air, which prevents the risk of material deterioration due to moisture and increases the storage time of the material.

Description of drawings

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

Fig. 2 is another direction structural representation of the utility model;

Fig. 3 is a schematic diagram of the structure of the utility model transformed from the vertical direction to the horizontal direction.

Description of drawings:

1. Valve port structure; 2. Upper bottom; 3. Lower bottom; 4. Upper ironing bottom line; 5. Lower ironing bottom line; 6. Left side; 7. Right side; 8. Plastic bag body; 9. L-shaped gap.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Embodiment one:

As shown in Figures 1, 2 and 3, a PE plastic bag with a valve port includes a plastic bag body 8 and a valve port structure 1; the valve port structure 1 is arranged perpendicular to the plastic bag body 8; Both the plastic bag body 8 and the valve port structure 1 are provided with an inner tank structure (not shown in the figure); the inner tank structure is a lined closed inner tank structure; the valve port structure 1 is a straight cylinder Valve port structure; the valve port structure 1 is formed by one-time heat sealing of polymer PE plastic tube material; the plastic bag body 8 is provided with an L-shaped gap 9; the valve port structure 1 is set in the L-shaped gap 9, and heat sealed with the plastic bag body 8 into an integral structure; the left and right sides of the plastic bag body 8 are respectively provided with a left side 6 and a right side 7; the left side 6 and the right side 7 are both Disposable thermoplastic compression molding; the upper end and the bottom of the plastic bag body 8 are respectively provided with an upper bottom 2 and a lower bottom 3; the upper bottom 2 and the lower bottom 3 are provided with ironing bottom lines, which are respectively upper ironing bottom lines 4, Bottom ironing thread 5;

The processing technology of the above-mentioned PE plastic bag, the specific steps are as follows:

Step 1, the plastic bag body 8 is folded into a cylindrical structure with two sides and two bottoms at one time by a folding machine;

Step 2, using a heat sealing machine to heat seal the two bottoms of the plastic bag body 8 to form two hot bottom lines respectively;

Step 3, using a cutting machine to cut an L-shaped notch on the upper end of the plastic bag body 8;

Step 4. The valve port structure 1 is folded into a cylindrical mechanism at one time by a folding machine;

Step 5, install the valve port structure 1 in the L-shaped gap 9, and use a heat sealing machine to package the valve port structure 1 and the plastic bag body 8 into one;

Embodiment two:

A PE plastic bag with a valve port, comprising a plastic bag body 8, the plastic bag body 8 is provided with a valve port structure 1; Side 7; the left side 6 and the right side 7 are all disposable thermoplastic compression molding; the upper end and the bottom of the plastic bag body 8 are respectively provided with an upper bottom 2 and a lower bottom 3; the upper bottom 2 And lower bottom 3 is provided with ironing bottom line, is respectively upper ironing bottom line 4, lower ironing bottom line 5;

A processing technology of a PE plastic bag with a valve port: 1. The plastic bag body 8 is folded into a cylindrical structure with two sides and two bottoms at one time by a folding machine; 2. The plastic bag body is sealed by a heat sealing machine. The two bottoms of 8 are heat-sealed to form two ironing bottom lines respectively; three, utilize a cutting machine to cut an L-shaped notch 9 on the upper end of the plastic bag body 8; Seal the ironing bottom, forming the upper ironing bottom line 4 and the upper bottom 2; five, heat-sealing the ironing bottom at the port edge of the PE plastic bag cylinder material body 8 bottom, forming the lower ironing bottom line 5 and the lower bottom 3;

The valve port mechanism 1, after being sheared and formed on the PE plastic bag barrel material body 8, the valve port mechanism 1 and the body are in an upright state as shown in Figure 1, so that it does not change the filling, in order to change the valve port The vertical direction of the mechanism 1, through special processing, makes the valve port mechanism 1 turn from vertical to horizontal, parallel to the upper bottom 2 and the body 8 is vertically at 90 degrees, as shown in Figure 3, which is convenient for the valve port to connect with the filling mechanism. The docking is convenient and effectively increases the filling speed. Of course, the implementation of this case should be understood by those skilled in the art;

The PE plastic valve bag has the characteristics of high moisture resistance and high tensile strength; this PE plastic valve bag can be suitable for the packaging of nano-powder materials and granular materials that require high moisture-proof performance. Heat sealing to form an inner closed liner structure, which ensures that the material will not be dampened by the moisture in the air during transportation and storage, which will change the molecular structure of the material and prevent the material from deteriorating due to moisture. Risk, increase the storage time of materials and simple structure, low production cost and easy to promote;

This kind of PE plastic valve bag is suitable for the packaging of nano-powder materials and granular materials that require high moisture-proof performance. After filling, it is heat-sealed at the valve port to form an inner closed liner structure, which ensures In the process of transportation and storage, the material will not be dampened by moisture in the air, which will change the molecular structure of the material, eliminate the risk of material deterioration due to moisture, and increase the storage time of the material;

The utility model is not limited to the above-mentioned specific implementation manners, and various transformations made by those skilled in the art starting from the above-mentioned ideas without creative work all fall within the protection scope of the utility model.

Claims (7)

1., with a PE polythene bag for valve port, comprise polythene bag body and valve mouth structure; It is characterized in that: described valve mouth structure is arranged perpendicular to polythene bag body; Described polythene bag body and described valve mouth structure inside are equipped with inner-tube structure.

2. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: described inner-tube structure is the closed inner-tube structure of liner.

3. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: described valve mouth structure is straight barrel type valve mouth structure.

4. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: the material of described valve mouth structure is Polymer PE plastic rubber material.

5. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: described polythene bag body is provided with L v notch v; Described valve mouth structure is arranged in this L v notch v, and seals into a single integrated structure with polythene bag body.

6. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: the left and right sides of described polythene bag body is respectively equipped with left surface, right flank; Described left surface and right flank are all that disposable thermal moulds compression forming.

7. a kind of PE polythene bag with valve port according to claim 1, is characterized in that: upper end and the bottom of described polythene bag body are respectively equipped with upper bottom portion, lower bottom part; Described upper bottom portion and lower bottom part are provided with boiling hot bottom line.