CN-224225473-U - Heat sealing mechanism and packaging machine

CN224225473UCN 224225473 UCN224225473 UCN 224225473UCN-224225473-U

Abstract

The utility model discloses a heat sealing mechanism and a packaging machine, wherein the heat sealing mechanism comprises a heat sealing seat, a heat sealing cover and a pressing piece, wherein the heat sealing seat is provided with a placing area of a packaging bag, the pressing piece is movably arranged in the placing area and is used for pressing a bag opening of the packaging bag, and the heat sealing cover is arranged in the placing area in a covering mode, is matched with the heat sealing seat and is used for heat sealing the packaging bag pressing the bag opening. The utility model avoids the problem of poor heat sealing caused by displacement or wrinkling of the package bag mouth, and ensures the sealing performance of the package.

Inventors

CHEN CHAOHUI
CAI HANYANG
LEI CHAOXU
CHEN ZHENGRU
CHEN SHIJIAN
ZHOU ZHIYUAN

Assignees

浙江名瑞智能装备科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250514
Priority Date: 20240816

Claims (10)

1. The heat sealing mechanism is characterized by comprising a heat sealing seat, a heat sealing cover and a pressing piece, wherein the heat sealing seat is provided with a placing area of a packaging bag, the pressing piece is movably arranged in the placing area and is used for pressing a bag opening of the packaging bag, and the heat sealing cover is arranged in the placing area in a openable and closable manner and is matched with the heat sealing seat, so that the heat sealing mechanism is used for heat sealing the packaging bag pressing the bag opening.
2. The heat seal mechanism of claim 1 wherein the compression member comprises an upper platen, a lower platen and a transmission structure, the lower platen being disposed in the placement area, the upper platen being disposed above the lower platen, the transmission structure being coupled to the upper platen and the lower platen to cause relative movement of the upper platen and the lower platen to compress the mouth of the package.
3. The heat seal mechanism of claim 2 wherein the upper platen comprises an upper bead and two surrounding bars, the two surrounding bars are disposed at two ends of the upper bead, the upper bead is matched with the lower bead to compress the bag mouth of the packaging bag, and the two surrounding bars are respectively connected to the transmission structure, so that the transmission structure drives the upper bead through the two surrounding bars.
4. A heat seal mechanism according to claim 3 wherein said drive means includes spaced drive ends, said drive ends being respectively drivingly connected to said peripheral bar and said lower bead, said heat seal carrier being provided with a lifting means for driving said drive ends in opposite directions to drive said peripheral bar and said lower bead.
5. The heat seal assembly of claim 4 wherein said heat seal housing includes a base and a heat seal plate, said heat seal plate being rotatably disposed on said base, said heat seal plate defining said placement area on a surface thereof facing away from said base, said drive mechanism being rotatable with said heat seal plate such that said drive ends are moved in opposite directions by said lifting mechanism when rotated.
6. The heat seal mechanism of claim 5 wherein said lifting structure includes a guide rail and first and second telescoping members disposed at opposite ends of said guide rail, said guide rail being disposed convexly on said base, said first telescoping member being adapted to guide said drive structure into said guide rail to drive both said drive ends, said second telescoping member being adapted to guide said drive structure out of said guide rail to reset both said drive ends.
7. The heat seal mechanism of claim 6 wherein a first spring is disposed between said drive structure and said heat seal plate, said first spring extending in a thickness direction of said heat seal plate, said drive structure being configured to rotate to extend said first spring for resetting both said drive ends when said drive structure is disengaged from said guide rail.
8. The heat seal mechanism of claim 6 wherein the surface of the base is provided with an arcuate track protruding outside the guide rail, the heat seal cover is connected with a trigger member penetrating the heat seal plate, and the arcuate track is configured to abut against the trigger member so that the heat seal cover is openable and closable to the placement area upon rotation of the heat seal plate.
9. The heat seal mechanism of claim 8 wherein said heat seal mechanism includes a plurality of said heat seal caps and a plurality of said compression members, said heat seal plate being formed with a plurality of said placement areas circumferentially disposed, each of said placement areas being provided with said compression members and said heat seal caps for compression heat sealing of a plurality of packages in sequence as said heat seal plate rotates.
10. A packaging machine comprising a heat-sealing mechanism according to any one of claims 1 to 9.

Description

Heat sealing mechanism and packaging machine Technical Field The utility model relates to the technical field of heat sealing packaging, in particular to a heat sealing mechanism and a packaging machine. Background The packaging machine is a packaging device widely applied to the fields of food, medicine, electronics and the like, and mainly seals the placed packaging bag through a heat sealing process so as to achieve the aims of fresh keeping, moisture prevention and oxidation prevention. Because the flexibility of the packaging bag material (such as a plastic film) is strong, the opening of the packaging bag is easy to shift or fold in the placing process, so that the problems of sealing leakage, sealing deficiency and the like occur in the subsequent heat sealing process, and the sealing performance of the packaging bag is influenced. Disclosure of utility model The utility model mainly aims to provide a heat sealing mechanism which is used for solving the problem of poor heat sealing caused by displacement or wrinkling of a packaging bag opening and ensuring the sealing performance of packaging. The heat sealing mechanism comprises a heat sealing seat, a heat sealing cover and a pressing piece, wherein the heat sealing seat is provided with a placing area of a packaging bag, the pressing piece is movably arranged in the placing area and is used for pressing a bag opening of the packaging bag, and the heat sealing cover is arranged in the placing area in a covering mode and is matched with the heat sealing seat in a covering mode and is used for heat sealing the packaging bag pressing the bag opening. Optionally, the compressing element includes top board, lower layering and transmission structure, the lower layering is located place the district, the top board is located on the lower layering, transmission structure connect in the top board with the lower layering, so that top board with the relative motion of lower layering compresses tightly the sack of wrapping bag. Optionally, the top board includes upper trim strip and two enclose the pole, two enclose the pole and locate relatively the both ends of upper trim strip, the upper trim strip cooperate in the sack of packing bag is compressed tightly to the lower trim strip, two enclose the pole connect respectively in transmission structure, so that transmission structure passes through two enclose the pole and drive the upper trim strip. Optionally, the transmission structure includes two driving ends that the interval set up, two the driving end respectively the transmission connect in enclose the pole with lower layering, heat seal seat installs elevation structure, elevation structure is used for driving two the driving end takes place opposite direction motion and the transmission enclose the pole with lower layering. Optionally, the heat seal seat includes base and heat-seal dish, the rotatable locating of heat-seal dish the base, the heat-seal dish deviates from the surface of base forms place the district, transmission structure follows the heat-seal dish rotates, so that two during the rotation the transmission end receives and acts on elevation structure and take place opposite direction motion. Optionally, the lifting structure comprises a guide rail, a first telescopic part and a second telescopic part, wherein the first telescopic part and the second telescopic part are arranged at two ends of the guide rail, the guide rail is convexly arranged at one side of the base, the first telescopic part is used for guiding the transmission structure into the guide rail to drive the two transmission ends, and the second telescopic part is used for guiding the transmission structure out of the guide rail to reset the two transmission ends. Optionally, a first spring is arranged between the transmission structure and the heat sealing disc, the first spring extends along the thickness direction of the heat sealing disc, and the transmission structure stretches the first spring through rotation and is used for resetting the two transmission ends when the transmission structure is separated from the guide rail. Optionally, the protruding arc track that is equipped with in surface of base, arc track is protruding to be located the outside of guide rail, the heat-seal lid is connected with wears to establish the trigger piece of heat-seal dish, arc track is used for contradicting trigger piece, so that with the rotation of heat-seal dish the heat-seal lid can open and shut the lid and locate place the district. Optionally, the heat seal mechanism includes a plurality of the heat seal lid and a plurality of compress tightly the piece, the heat-seal dish is formed with a plurality of that encircle the setting place the district, every place the district all be equipped with compress tightly the piece with the heat-seal lid, so that a plurality of wrapping bags follow the rotation of heat-seal dish compresses tightly the heat-seal in proper order. The utilit