CN102673841A

CN102673841A - Double-bent sealing mechanism for heat-sealed pocket

Info

Publication number: CN102673841A
Application number: CN2011100539723A
Authority: CN
Inventors: 陈安康
Original assignee: SHANGHAI AILU PAPER PACKAGE CO Ltd
Current assignee: SHANGHAI AILU PAPER PACKAGE CO Ltd
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2012-09-19
Anticipated expiration: 2031-03-07
Also published as: CN102673841B

Abstract

The invention discloses a double-bent sealing mechanism for a heat-sealed pocket. The double-bent sealing mechanism comprises a framework, gears, synchronous pulleys, an upper shaft, a lower shaft, a pocket conveying frame, electric appliance control boxes, a hot melting glue coating mechanism, a first bending board, a second bending board, synchronous belts, and a pocket collecting frame, wherein the upper shaft is mounted at one end of the framework; the lower shaft is mounted at the right lower side of the upper shaft; the gears are mounted at one ends of the upper shaft and the lower shaft; the synchronous pulleys are mounted on the upper shaft and the lower shaft in parallel in pair; the four synchronous belts are mounted on the synchronous pulleys; the both ends of the framework are respectively provided with the pocket conveying frame and the pocket collecting frame; electric appliance control boxes are further arranged at sides of the framework and the pocket conveying frame; and the hot melting glue coating mechanism, the first bending board and the second bending board are fixed at the sides of the framework. The double-bent sealing mechanism for the heat-sealed pocket provided by the invention can be used for continuously folding a pocket mouth of the heat-sealed pocket twice in a pocket making process, so as to achieve a purpose of entirely avoiding light after package due to a property that the light cannot make a turn.

Description

The curved enclosed mechanism of heat-sealing pocket two-fold

Technical field

The present invention relates to packaging bag manufacturing equipment field, particularly a kind of heat-sealing pocket two-fold is bent enclosed mechanism.

Background technology

At present, the heat seal paper bag extensively is employed because of it uses the convenience of operation, but at some higher-end businesses, and when being used to pack the material that needs lucifuge, the deficiency on heat seal paper bag sealing device and the sealing mode just comes out.As shown in Figure 1, traditional hot Sealing paper bag structure is following: one or more layers paper is rolled into tubular and constitutes bag body 1.At an end of bag body, back side paper 2 grows about three centimetres than front paper, is coated with first hot melt glue 3 in this zone that grows.Symmetry is opposite, and at the other end of bag body, the front paper grows about three centimetres than back side paper, equally also smears second hot melt glue 6 growing part, and material is paper and the back side paper branch staggered positions laggard inside of going into bag body 1 of staggering in 5 minutes from the front.As shown in Figure 2, at an end of bag body 1, back side paper 2 grows about three centimetres than front paper; Be coated with first hot melt glue 3 growing part, paper staggered with the back side paper branch staggered positions material in 5 minutes from the front, and material is the inside that gets into bag body 1 from this position; Heat seal is in the position of heat seal line position 4, and is as shown in Figure 3, on the heat seal angle bender; Position along heat seal line position 4 folds the grow part of back side paper than front paper, and after the heating, first hot melt glue 3 has just bondd back side paper 2 and front paper two parts; Can clearly find out that paper and back side paper branch staggered positions 5 can stay the inside that bag body 1 is led in the space in the front, when can is when needing the material of lucifuge; Light from then on space gets into, and causes the packing failure.

Summary of the invention

Technical matters to be solved by this invention provides the curved enclosed mechanism of a kind of heat-sealing pocket two-fold, and it can doublely will seal the pocket sack in the bag process folding, utilizes the characteristic that can not turn of light, thereby reaches the packing back purpose of lucifuge fully.

For solveing the technical problem; The invention provides the curved enclosed mechanism of a kind of heat-sealing pocket two-fold, it is characterized in that, it comprises framework, gear, synchronous pulley, goes up axle, lower shaft, send a bag frame, electric appliance control box, hot melt glue gumming mechanism, first bending plate, second bending plate, synchronously band, receive a bag frame; End at framework is equipped with axle; Positive bottom at last axle is equipped with lower shaft, at an end of last axle and lower shaft gear is installed, and on last and lower shaft, is parallel-laid into synchronous pulley is installed over the ground; Four bands synchronously are installed on synchronous pulley; Be separately installed with at the two ends of framework and send bag frame and to receive a bag frame, framework with send the side of bag frame that electric appliance control box also is installed, hot melt glue gumming mechanism, first bending plate and second bending plate are fixed on the side of framework.

Preferably, said first bending plate and second bending plate all comprise U type outside plate and central layer, and central layer is installed in the U type outside plate.

Positive progressive effect of the present invention is: the present invention seals the double pocket sack that will seal of the curved enclosed mechanism of pocket two-fold ability in the bag process and folds, and utilizes the characteristic that can not turn of light, thereby reaches the packing back purpose of lucifuge fully.

Description of drawings

Fig. 1 is the structural representation of traditional hot Sealing paper bag structure.

Structural representation when Fig. 2 is the bending of traditional hot Sealing paper bag structure.

Fig. 3 is the structural representation after the bending of traditional hot Sealing paper bag structure.

Fig. 4 seals the structural representation of the curved enclosed mechanism of pocket two-fold for the present invention.

Fig. 5 is the structural representation of bending plate among the present invention.

Fig. 6 seals the principle schematic that the curved enclosed mechanism of pocket two-fold carries out the bending action process for the present invention.

The specific embodiment

Lift a preferred embodiment below, and combine accompanying drawing to come the clearer the present invention that intactly explains.

As shown in Figure 4; The present invention seals that the curved enclosed mechanism of pocket two-fold comprises framework 11, gear 12, synchronous pulley 13, goes up axle 14, lower shaft 15, send bag frame 17, electric appliance control box 18, hot melt glue gumming mechanism 20, first bending plate 21, second bending plate 22, be with 23 synchronously, receive a bag frame 24; End at framework 11 is equipped with axle 14; Positive bottom at last axle 14 is equipped with lower shaft 15, at an end of last axle 14 and lower shaft 15 gear 12 of a pair of drive shaft turns is installed, and on last 14 and lower shaft 15, is parallel-laid into synchronous pulley 13 is installed over the ground; On synchronous pulley 13, be equipped with four and be with 23 synchronously; After bag tube 16 was pushed into the curved enclosed mechanism of this heat-sealing pocket two-fold, that works in pairs will tightly clamp the two ends of bag tube 16 with 23 synchronously, but exposes position that is coated with hot melt glue and the position that needs bending.Be separately installed with at the two ends of framework 11 and send bag frame 17 and to receive a bag frame 24, framework 11 with send the side of bag frame 17 that electric appliance control box 18 also is installed, hot melt glue gumming mechanism 20, first bending plate 21 and second bending plate 22 are fixed on the side of framework 11.As shown in Figure 5; First bending plate 21 and second bending plate 22 all comprise U type outside plate 27 and central layer 29; The central layer 29 of winding type is installed in U type outside

plate

27, and 27 oral areas that have the slit to hold bag tube 16 of central layer 29 and U type outside plate pass through, and second bending plate 21 is identical with the structure of first bending plate 22; Just the central layer 29 of second bending plate and the slit between the U type outside plate 27 want big, and the oral area that can hold the bag tube 16 once of bending passes through.

After bag tube 16 was pushed into the curved enclosed mechanism of this heat-sealing pocket two-fold, double-type tightly embracing with 23 synchronously clamped bag two ends of tube 16, but exposes position that is coated with hot melt glue and the position that needs bending.Electric appliance control box 18 is controlled motor driven gears 12 rotations, and gear 12 drives goes up axle 14 and lower shaft 15 rotations, and last axle 14 rotates with lower shaft 15 and drives synchronous pulley mounted thereto 13 rotations again; The rotation of synchronous pulley 13 has just driven synchronously the cycle rotation with 23, embraces bag tube 16 successively to clip through hot melt glue gumming mechanism 20 and smears the hot melt glue action, afterwards; Get into first bending plate 21 again, when getting into first bending plate 21, as shown in Figure 5; The oral area of bag tube 16 gets into the U type outside plate 27 and the slit of the central layer 29 of the winding type of installation within it along bag nozzle portion sense of motion 30 (directions of arrow) at import 26 places of U type outside plate 27; U type outside plate 27 is turned up the oral area of bag tube 16 from the bottom, central layer 29 is pushed down bending line 31 from top, and the part of the bag nozzle portion that is not pushed down is just gradually by double flat; Walk out from the outlet 28 of U type outside plate 27; Get into second bending plate 22 once more, carry out the bending second time, through top continuous action; The two ends of heat-sealing pocket have been bent twice continuously, made finished product 25.The bending action process is seen Fig. 6, and the present invention seals the curved enclosed mechanism of pocket two-fold and grows part to back side paper 2 along the 4 upwards bendings of heat seal line position than positive paper, accomplishes bending for the first time; The secondary bending mechanism that seals the curved enclosed mechanism of pocket two-fold then can upwards be rolled over sack once more, accomplishes twice bending, at this moment; First hot melt glue 3 will bend the part that grows of good back side paper 2, bond together with the front paper, as can be seen from Figure 6; At this moment; Lead to bag body 1 in-to-in front paper and back side paper branch staggered positions 5 and be involved in the centre,, reached the purpose of the material that keeps in Dark Place fully like this with regard to the complete closed sack; The curved enclosed mechanism of this heat-sealing pocket two-fold has been arranged, further enlarged the range of use of heat seal paper bag.

Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only are casehistorys, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited appended claims.

Claims

1. a heat-sealing pocket two-fold is bent enclosed mechanism; It is characterized in that; It comprises framework, gear, synchronous pulley, go up axle, lower shaft, send a bag frame, electric appliance control box, hot melt glue gumming mechanism, first bending plate, second bending plate, synchronously band, receive a bag frame, at an end of framework axle is installed, last positive bottom lower shaft is installed; End at last axle and lower shaft is equipped with gear; On last axle and lower shaft, be parallel-laid into synchronous pulley is installed over the ground, four bands synchronously are installed on synchronous pulley, be separately installed with at the two ends of framework and send bag frame and receive the bag frame; Framework with send the side of bag frame that electric appliance control box also is installed, hot melt glue gumming mechanism, first bending plate and second bending plate are fixed on the side of framework.

2. heat-sealing pocket two-fold as claimed in claim 1 is bent enclosed mechanism, it is characterized in that said first bending plate and second bending plate all comprise U type outside plate and central layer, and central layer is installed in the U type outside plate.