CN201932393U

CN201932393U - Double-bending sealing mechanism for heat-sealed bag

Info

Publication number: CN201932393U
Application number: CN2011200577260U
Authority: CN
Inventors: 陈安康
Original assignee: SHANGHAI AILU PAPER PACKAGE CO Ltd
Current assignee: Shanghai Ailu Package Co., Ltd.
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2011-08-17
Anticipated expiration: 2021-03-07

Abstract

The utility model discloses a double-bending sealing mechanism for a heat-sealed bag, which comprises a frame, gears, synchronous pulleys, an upper shaft, a lower shaft, a bag conveying rack, electric control boxes, a hot-melt adhesive applying mechanism, a first bending plate, a second bending plate, synchronous belts and a bag collecting rack, wherein the upper shaft is mounted at one end of the frame, the lower shaft is mounted under the upper shaft, the gears are mounted at one end of the upper shaft and at one end of the lower shaft, the synchronous pulleys are mounted in parallel and in pair on the upper shaft and the lower shaft, four synchronous belts are mounted on the synchronous pulleys, the bag conveying rack and the bag collecting rack are mounted at the two ends of the frame respectively, the electric control boxes are also mounted on the lateral edges of the frame and the bag conveying rack, and the hot-melt adhesive applying mechanism, the first bending plate and the second bending plate are fixed on the lateral edges of the frame. The double-bending sealing mechanism for the heat-sealed bag can continuously bend the opening of the heat-sealed bag twice during the bag making process, and achieves the aim of completely protecting from light after packaging based on the feature that the light goes only in straight lines.

Description

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

Technical field

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

Background technology

At present, heat-sealing mouthful 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-sealing mouthful paper bag sealing device and the sealing mode just comes out.As shown in Figure 1, traditional hot Sealing paper bag structure is as follows: 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 from front paper and the back side paper branch staggered positions laggard inside of going into bag body 1 of staggering in 5 minutes.As shown in Figure 2, end at bag body 1, back side paper 2 grows about three centimetres than front paper, be coated with first hot melt glue 3 growing part, material staggered from front paper and back side paper branch staggered positions in 5 minutes, material is the inside that enters bag body 1 from this position, the heat-sealing mouth is the position at heat-sealing mouthful line position 4, as shown in Figure 3, on heat-sealing mouthful angle bender, along the grow part of the folding back side, the position that seals mouthful line position 4 paper, after the heating than front paper, first hot melt glue 3 has just bondd back side paper 2 and front paper two parts, can clearly find out that can stay the inside that bag body 1 is led in the space at front paper and back side paper branch staggered positions 5, when can is when needing the material of lucifuge, light from then on space enters, and causes the packing failure.

The utility model content

Technical problem to be solved in the utility model 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 utility model provides a kind of heat-sealing pocket two-fold to bend enclosed mechanism, it is characterized in that, it comprises framework, gear, synchronous pulley, last axle, lower shaft, send a bag frame, electric appliance control box, the hot melt glue gumming mechanism, first bending plate, second bending plate, be with synchronously, receive the bag frame, end at framework is equipped with axle, positive bottom at last axle is equipped with lower shaft, 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 to receive a bag frame, at framework and send the side of bag frame electric appliance control box also to be installed, the hot melt glue gumming mechanism, first bending plate and second bending plate are fixed on the side of framework.

Preferably, described 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 utility model is: the curved enclosed mechanism of the utility model heat-sealing pocket two-fold can doublely will seal the pocket sack in the bag process folding, utilizes the characteristic that can not turn of light, thereby reach 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 is the structural representation of the curved enclosed mechanism of the utility model heat-sealing pocket two-fold.

Fig. 5 is the structural representation of bending plate in the utility model.

Fig. 6 carries out the principle schematic of bending action process for the curved enclosed mechanism of the utility model heat-sealing pocket two-fold.

The specific embodiment

Lift a preferred embodiment below, and come the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.

As shown in Figure 4, the curved enclosed mechanism of the utility model heat-sealing pocket two-fold comprises framework 11, gear 12, synchronous pulley 13, last 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 bag frame 24, end at framework 11 is equipped with axle 14, positive bottom at last axle 14 is equipped with lower shaft 15, the gear 12 of a pair of drive shaft turns is installed at an end of last axle 14 and lower shaft 15, on last axle 14 and lower shaft 15, be 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 is 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, at 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

27,27 oral areas that have the slit to hold bag tube 16 of central layer 29 and U type outside plate pass through, 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 control motor driven gears 12 rotate, gear 12 drives goes up axle 14 and lower shaft 15 rotations, last axle 14 and lower shaft 15 rotate and drive synchronous pulley mounted thereto 13 rotations again, the rotation of synchronous pulley 13 has just driven synchronously the cycle rotation with 23, bag tube 16 embraced to clip by hot melt glue gumming mechanism 20 successively smear the hot melt glue action, afterwards, enter first bending plate 21 again, when entering first bending plate 21, as shown in Figure 5, the oral area of bag tube 16 enters 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, 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, enter second bending plate 22 once more, carry out the bending second time, by 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, the curved enclosed mechanism of the utility model heat-sealing pocket two-fold grows part to back side paper 2 along the 4 upwards bendings of heat-sealing mouthful line position than positive paper, finish 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, finish 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-sealing mouthful paper bag.

Though more than described the specific embodiment of the present utility model, but those skilled in the art is to be understood that, these only are casehistorys, under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these embodiments.Therefore, protection domain of the present utility model is limited by 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, last axle, lower shaft, send a bag frame, electric appliance control box, the hot melt glue gumming mechanism, first bending plate, second bending plate, be with synchronously, receive the bag frame, end at framework is equipped with axle, positive bottom at last axle is equipped with lower shaft, 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 to receive a bag frame, at framework and send the side of bag frame electric appliance control box also to be installed, the 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 described 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.