JP3071103U - Folding tube for lid, curtain bag - Google Patents

Abstract

(57) [Summary] [Issues] I would like you to improve the tunnel method by adopting the tube of this invention in the cleaning industry. In addition, the method of closing the mouth of the plastic bag is a little difficult when the rush of the current concave-convex fitting type is required. Although the tube bag of this invention is not completely sealed, it is easy to enter when inserting an item into the bag, and it is difficult to exit, so it is convenient. [Solution] The tube of this invention can be easily made with a little modification during the manufacturing process of the polyethylene tube. The polyethylene tube is made by putting fine granules (pellets) of synthetic resin into a kama, boiling the liquid melted at a high temperature from the hole around the kama, sending air inside, expanding (inflation) like a balloon, and pulling up. In the middle of the process, a folding mold is fitted on both side surfaces of the tube to deform it, and a knife is applied to the bottom or top of the valley, cut and wound to wind. The tube is wound by heat fusion while inserting the product by hand. In addition, tubes can be produced in large quantities with automatic bag making machines. Cheap and cheap. The folds and cuts on both sides of the tube apply to bags containing items that do not want to be sealed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 In general, synthetic resin bags can be made by cutting the film tube to a fixed length by heat fusion using an automatic bag making machine. However, in the cleaning industry, bags of finished products (cutter shirts, underwear, etc.) are packed. Inconvenient scenes occur in continuous work. Therefore, in this invention, in order to cut open the lateral abdominal surface of the tube and make it into the mouth of the bag, insert it into both sides of the tube (the concave portion on the side of the super bag) and put the tube flow into the folded part on one or both sides. A cut tube is made along the edge of the bag with a cut along it, and the opposite side is the bottom of the bag. When inserting an item into a bag, it is easy to enter without using the stopper (tape, staples, etc.) at the mouth of the bag, and it is necessary to make it difficult to exit. V-type-The bottom of the valley is torn and the sides of the product inserted into the mouth of the bag are cut off by heat sealing, or after the product is inserted, both sides of the product are covered with a lid so that one fold surface is covered on the surface. Fusion Cutting. W-shaped-cuts the summit and creates two V-shaped curtains to prevent the outflow of goods. W-shaped-Cut through one V-shaped valley bottom to make the remaining N-shaped curtain. W-shaped-Two V-shaped valleys are torn apart, and the middle ∧ shape becomes the net curtain. In addition, shift the positions of the folds or change the thickness of the folds so that the mouth of the bag is closed.

[0002]

[Prior art]

 At present, in the cleaning industry, the finishing of clothing (cutter shirts, underwear) is done in a so-called tunnel style, and a polyethylene tube cut to an appropriate length outside a cylindrical object is squashed like a bellows. Insert the finished article through the tunnel entrance, pull it out together with the polytube at the exit, cut it off by heat sealing, and if the polytube runs out again, cover the cylinder again and spend time and effort. become .

[0003]

[Problems to be solved by the invention]

 The cleaning tunnel system has been revised, and rolls of polyethylene and tubes are used to eliminate wrinkles so that continuous and continuous work can be performed.

[0004]

[Means for solving the problem]

 By folding the polyethylene and tube into a roll, both sides are folded to prevent them from having the same thickness on both sides to form a roll.

[0005]

[Embodiment of the invention]

 For example, in the case of bagging of finished products (cutter shirts, underwear, etc.), insert the product into the valley bottom opening of the fold-in V-tube, then cover the product with one side of the fold on the front side and cover the product. Both sides (corresponding to the body of the bag) are heat-sealed and cut. Also, in the case of a single-opening tube combining a non-woven fabric (with air permeability) and a CPP film (with transparency), insert the product from the side surface and cover the extra wide surface with a cover. The product is folded back and the both sides of the product (the body of the bag) are cut by heat fusion. In both cases, both sides of the product are heat-sealed and cut only at the first time, but the adjacent side is also welded at the same time.From the next time, after the product is inserted, only one side needs to be heat-sealed and cut. Continued work is possible until the tube runs out. Also, a folded tube that is more suitable for the shape of the article may be selected. This tube can be mass-produced with a single bag using an automatic heat fusion cutting machine.

[0006]

[Effect of the invention]

 In the case of the cleaning industry that adopts this invention, the efficiency of operation, the freshness of the fabric of the polytube, the bag with the lid, and the nonwoven bag are not completely sealed, so they are not filled with chemical gas. In addition, when the lid is flipped to the opposite side, the opening is opened, and when the lid is returned to the original position, the opening is closed, so that the bags can be reused and economical. Of course, mechanical equipment can be saved at low cost.

[Brief description of the drawings]

FIG. 1 is a perspective view of a roll of polyethylene, a tube-folded V shape, and a cut valley bottom.

FIG. 2 is a perspective view of a tube in which a nonwoven fabric and a CPP film are superposed.

FIG. 3 is a cross-sectional view of a folded shape and a cut fold state. Cut V shape, cut valley bottom B. A. After inserting the product into the A tube, the lid is closed with one of the folds. Folding W shape, cut top F-shaped fold, valley bottom of cut V Shows the valley bottom of the fold W shape and the cut 2V respectively

FIG. 4 is a perspective view of a bag operation for packing a finished product for cleaning. A bag that has been inserted into the tube, and after insertion, has one of the folded surfaces covered on the front side, and is heat-sealed and cut.

FIG. 5 is an illustration of a pattern that is completed by an integrated work in a state in which a folding device and a cutting blade are added during a process of manufacturing a polyethylene tube.

[Explanation of symbols]

1. 1. V-shaped tube, opening at the bottom of cut valley 2. Non-woven sheet 4. Flip back to the front side (non-woven fabric side) of the CPP film sheet. 5. The product is being inserted into the tube. 6. Finish the bagging of the goods. 7. Heating wire foot type, current can be passed only when bonding. 8. Raw material for pellets of polyethylene 9. Hot-melt comb and blown air 10. Tube membrane Folding device 12. Cutting blade 13. 13. Winding tube Folding opening

Claims (2)

[Utility model registration claims] 1. A folding tube for a bag with a lid and a curtain, in which one or a plurality of folds are inserted into the side surface of the tube along the flow of the tube, and one or more cuts are inserted into the portion along the flow of the tube. 2. A two-sided film sheet of different widths, which is overlapped and one side edge thereof is fused, or a band-shaped sheet of the same type is folded in two to be wider. Lid that folds the extra side of the lid to make it a lid, and a folding tube for a bag with a curtain.