A bag making machine for making plastic film side valve bags
A bag making machine and valve bag technology, which is applied in bag making operations, container manufacturing machinery, box making operations, etc., can solve the problems of increasing manufacturer costs, valve bags not having air permeability, and high valve bag prices. simple structure
Active Publication Date: 2017-03-15
浙江超伟机械有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Due to the limitation of the structure of the valve pocket itself, the cost of the valve pocket is high at present, and the production process is complicated. Unacceptable, so that the price of the current valve bag remains high, thus greatly increasing the cost of the manufacturer
In addition, especially when filling under high pressure environment, the existing valve pockets are made of thicker materials, so the valve pockets are not breathable
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] Such as image 3 and 4 As shown, this plastic film side valve pocket is actually formed by a piece of plastic film 101 through multiple processes, and finally formed by eager cutting. For the convenience of description, the present invention divides the valve pocket into a left half bag and a right half bag. Body, such as figure 1 and 2 Shown, left half bag body and right half bag body all become M type, because bag is made by a piece of plastic film 101, the lower bag film 15 of left half bag body and the lower bag film 15 of right half bag body are natural As a whole, the upper bag films 14 of the two overlap together and are partially sealed, so that the two upper bag films 14 form a seal 13 at the sealed place, from figure 1 It can be seen that the trajectory forming the seal 13 is heterogeneous, that is, there is no specific rule, as long as the two upper bag films are partially sealed together; the front ends of the left half bag and the right half bag are seal...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a plastic film side valve opening bag with simple and reasonable structure, applicability to the filling of an automatic filling machine and capability of preventing materials from leaking even though the bag is unsealed, and also provides a method and equipment for producing such a valve opening bag. The valve opening bag is simple in structure; the materials can be conveniently filled into a bag body only by inserting a material delivery pipeline of the automatic filling machine into a side valve opening formed by upper bag films of left and right bag bodies between a sealing edge and a sealing part, the bag body starts expanding outwards along with the continuous filling of the materials, and the upper bag films of the left and right half bag bodies at the side valve opening are automatically closed, so that the bag is not required to be specially sealed manually, and worry about the leakage of the materials in the bag is also eliminated; in addition, according to the method and the method for producing the valve opening bag, the valve opening bag can be conveniently and rapidly produced.
Description
technical field [0001] The invention relates to a valve bag for packaging, in particular to a plastic film side valve bag. In addition, the invention also relates to a method and equipment for making the valve bag. Background technique [0002] Nowadays, the packaging of materials such as ultrafine powder and granular materials, such as fine chemical raw materials, pharmaceutical and chemical raw materials, and even materials such as food such as flour and food seasonings, has gradually transitioned from the previous manual packaging mode. Up to the present semi-automatic or fully automatic machine packaging, valve bags are widely used because of the high efficiency of automatic filling, accurate measurement and less manpower input. [0003] Due to the limitation of the structure of the valve pocket itself, the cost of the valve pocket is high at present, and the production process is complicated. It is unacceptable, so that the price of the current valve bag remains high, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B65D30/24B31B70/00B31B70/10B31B70/36B31B70/16B31B70/88B31B70/64B31B160/20B31B155/00B31B50/04B31B50/36B31B50/88
Inventor 丁善玉
Owner 浙江超伟机械有限公司