CN209038159U - A kind of novel paper bag - Google Patents

Abstract

The utility model discloses a kind of novel paper bags, including bag bag body, bottom structure, valve mouth structure, the top of the packaging bag bag body is equipped with upper bottom structure, and the inside of the upper bottom structure is equipped with valve mouth structure, valve mechanism and valve port foldable structure are equipped between the valve mouth structure and packaging bag bag body.The utility model forms closed valve port using the foldable craft of the other end of novel valve mouth structure and its valve mouth structure, and oral area humidity resistance increases substantially, and improves the stability of the packaging of valve bag, transport and the quality of storage.

Description

A kind of novel paper bag

Technical field

The utility model relates to pack valve bag technical field, specifically a kind of novel paper bag.

Background technique

With the iterative method of " Created in China 2025 ", the development of Chinese manufacturing is also to high quality, high standard, more function Energy direction is developed, and the innovation in terms of manufacturing innovation, especially upstream materials will directly influence the quality of downstream product The diversity of stability and function, the development of Material Physics state are also on the one hand big partial size bulk hairs to two extreme developments Exhibition, is on the other hand further reducing for granular material partial size, even nanoscale powder material, therefore how to realize the efficient of powder The stability of filling, transport and the quality in storing process and state, is of great significance.

Currently, powder filling uses valve port pneumatic transmission or valve port screw rod filling substantially, and it is logical for subtle powder, 80% or more Cross that pneumatic transmission is filling plus automatically upper bag realizes filling high efficiency, and packaging bag is ventilative and moisture-proof, is always conflicting Focus, bag body can realize ventilative and moisture-proof balance by multi-ply paper or film, but valve port oral area is especially built-in valve port, Improve filling efficiency because eliminating valve port heat seal and Hui Sai workshop section, but common built-in valve port oral area due to oral area material it is residual Stay and the unicity of structure so that material easily causes to leak in stacking, transportational process, caused loss of material, dampness and Bag body pollution.For this purpose, built-in valve-port packaging bag valve port oral area, which can be achieved, the utility model proposes one kind efficiently closes material effect, And improve the valve bag of oral area material humidity resistance.

Summary of the invention

The purpose of this utility model is to provide a kind of novel paper bags, easily occur to solve existing built-in valve bag oral area It is not tight to close material, leads to material leakage, the problems such as loss, dampness and material pollute, provide it is a kind of have close material and moisture-proof function New type of valve bag structure, can solve valve port and be especially the pass of built-in valve port and expect not tight and moisture-proof oral area problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of novel paper bag, including bag bag body, bottom The top of portion's structure, valve mouth structure and valve port bonded structure, the packaging bag bag body is equipped with upper bottom structure, the upper bottom structure Inside is equipped with valve mouth structure, and valve mechanism is equipped between the lower part and packaging bag bag body of the valve mouth structure and valve port folds knot Structure.

Preferably, the valve mouth structure is elastic material, can be the high-intensitive high barrier material such as plastics, rubber, It can be paper and other composite materials.

Preferably, the valve mouth structure can overlap to form tubular structure for sheet material, can also be directly folded for cylindrical material It closes.

Preferably, the valve port foldable structure, by folding mode, forms it into encased valve inside packaging bag bag body Mouthful.

Preferably, the valve mechanism forms built-in valve port or valve mechanism in packaging bag inside packaging bag bag body Outside bag body, external valve port is formed.

Preferably, the two sides of the valve mouth structure are equipped with valve port bonded structure, are allowed to Nian Jie with upper bottom structure, promote valve port Structure is the exclusive communication structure inside and outside packaging bag.

Preferably, the packaging bag bag body, upper bottom structure and bottom structural integrity molding, packaging bag bag is as single layer or more Layer paper, or the mixed structure of multi-layered paper and film, and multi-layered paper structure at head bottom and middle seam by carrying out Glue bonding forming.

Compared with prior art, the utility model has the beneficial effects that the utility model uses valve port elastic material, and lead to Valve port other end foldable craft is crossed, closed valve port is formed, improves the stabilization of the packaging of valve bag, transport and the quality of storage Property, using the valve bag of the structure be especially built-in valve port valve bag its it is filling after, can satisfy valve port and more effectively close While expecting effect, oral area humidity resistance is increased substantially, and realizes that valve bag is especially the filling of the valve bag of built-in valve port The quality of storage, the transport of material and the stability of material state afterwards, effectively solution valve bag, oral area material leakage, material it is moisture-proof and Material and bag body pollution problem.

Detailed description of the invention

Fig. 1 is the utility model paper bag body construction schematic diagram.

Fig. 2 is that valve mouth structure schematic diagram before bottom is not rolled at the upper bottom of the utility model.

Fig. 3 is the valve mouth structure schematic diagram of the utility model.

In figure: bottom structure, 3- valve mouth structure, 4- valve mechanism, 5- under 1- packaging bag bag body, the upper bottom structure of 2-1-, 2-2- Valve port turnover structure, 6- valve port bonded structure, 7- bags of body first layer paper, 8- bags of body second layer paper, 9- bags of body third layer paper ?.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1~3, in the utility model embodiment, a kind of novel paper bag, including packaging bag bag body 1, bottom structure (upper bottom structure 2-1 and lower bottom structure 2-2), valve mouth structure 3 and valve port bonded structure 6, the top of the packaging bag bag body 1 are equipped with Upper bottom structure 2-1, upper bottom structure 2-1 have the function of sealing valve port, and the inside of the upper bottom structure 2-1 is equipped with valve mouth structure 3, Valve mechanism 4 and valve port foldable structure 5, valve port foldable structure are equipped between the lower part and packaging bag bag body 1 of the valve mouth structure 3 5 can reduce occupied space, and the two sides of upper bottom structure 2-1 are equipped with valve port bonded structure 6, the top of the packaging bag bag body 1 Equipped with bag body first layer paper 7, bag body second layer paper 8 and bag body third layer paper 9, first layer paper 7, bag body second layer paper 8 and bag body third layer paper 9 formed by upper bottom and bottom and middle seam starch gluing, the lower end of the packaging bag bag body 1 It is provided with lower bottom structure 2-2.

The valve mouth structure 3 is adhesively fixed with bag body 1 by valve port bonded structure 6, and valve port foldable structure 5 is in packaging bag Bag body 1 inside, by folding mode, form it into before filling the container with it is filling after closed valve port.

The valve mouth structure 3 is elastic material, high-intensitive and high obstructing performance using having in the implementation case HDPE film.

The valve mouth structure 3 can overlap to form tubular structure for sheet material, can also directly overlap for cylindrical material, this Using cylindrical material in case study on implementation.

The packaging bag bag body 1, upper bottom structure 2-1 and lower bottom structure 2-2 are integrally formed, packaging bag bag body 1 be single layer or Multi-layered paper, or the mixed structure of multi-layered paper and film, and multi-layered paper structure by head bottom and middle seam into Row glue bonding forming, as shown in Figure 1, packaging bag bag body 1 is using 3 layers of paper structure in the utility model.

The valve mechanism 4 forms built-in valve port or valve mechanism 4 in packaging bag bag body inside packaging bag bag body 1 Outside 1, external valve port is formed, as depicted in figs. 1 and 2, the utility model is using built-in valve port.

The utility model valve port is located at the inside of 1 ontology of packaging bag bag body, forms built-in valve port, and the valve port 3 is logical It is Nian Jie with upper bottom structure 2-1 to cross valve port bonded structure 6, so as to form filling preceding and filling rear enclosed formula valve port, valve port folds knot Structure 5 is located at one end in packaging bag bag body 1, and after packaging bag is filling, the extruding of material can be closed folding structure, be allowed to be formed Closed valve port, by using the valve mouth structure 3 with valve mechanism 4 and the composition of valve port foldable structure 5, before filling, valve Structure 4 and valve port foldable structure 5 are closed state, in pouring process, the insertion of valve pipe, due to valve mouth structure 3 itself intensity and The smoothness having, valve pipe can normally open valve port foldable structure 5, and enter inside bag body, after filling, due to material It squeezes, valve port foldable structure 5 is closed again, forms closed valve port.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, therefore only will fall in containing for the equivalent requirements of the claims All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (7)

1. a kind of novel paper bag, including packaging bag bag body (1), bottom structure (2-1/2-2), valve mouth structure (3), feature exists In: the top of the packaging bag bag body (1) is equipped with upper bottom structure (2-1), and the inside of the upper bottom structure (2-1) is equipped with valve port knot Structure (3) is equipped with valve mechanism (4) and valve port foldable structure (5) between the valve mouth structure (3) and packaging bag bag body (1).

2. a kind of novel paper bag according to claim 1, it is characterised in that: the valve mouth structure (3) is elastic material.

3. a kind of novel paper bag according to claim 1, it is characterised in that: the valve mouth structure (3) includes valve mechanism (4), internal in packaging bag bag body (1), built-in valve port or valve mechanism (4) are formed in packaging bag bag body (1) outside, shape At external valve port.

4. a kind of novel paper bag according to claim 3, it is characterised in that: the valve mouth structure (3) can take for sheet material It connects to form tubular structure, can also directly be overlapped for cylindrical material.

5. a kind of novel paper bag according to claim 3, it is characterised in that: the two sides of the valve mouth structure (3) are equipped with valve Mouth bonded structure (6), is allowed to Nian Jie with upper bottom structure (2-1), and promoting valve mouth structure is the exclusive communication structure inside and outside packaging bag.

6. a kind of novel paper bag according to claim 1, it is characterised in that: the valve mouth structure (3) folds comprising valve port Structure (5), it is internal in packaging bag bag body (1), by folding mode, form it into closed valve port.

7. a kind of novel paper bag according to claim 1, it is characterised in that: the packaging bag bag body (1) is single layer or more Layer paper, or the mixed structure of multi-layered paper and film.