CN202156062U

CN202156062U - Heat sealing mechanism of bag making machine

Info

Publication number: CN202156062U
Application number: CN201120260566XU
Authority: CN
Inventors: 冯春
Original assignee: SUZHOU TIANJIA NEW MATERIAL CO Ltd
Current assignee: Suzhou Tipack Co., Ltd.
Priority date: 2011-07-22
Filing date: 2011-07-22
Publication date: 2012-03-07
Anticipated expiration: 2021-07-22

Abstract

The utility model relates to a heat sealing mechanism of a bag making machine, wherein a lifting mechanism is arranged above a film liner plate; a mounting plate is horizontally fixed on the lifting mechanism; a heat sealing knife is vertically mounted at the central position of the lower surface of the mounting plate; the heat sealing knife is over against the film liner plate; the mounting plate positioned on two sides of the heat sealing knife is symmetrically provided with one pair of through holes; a guide post is hung in each through hole; the upper end of each guide post is penetrated through the through holes; the top end part of each guide post is rotationally connected with a locking nut; a spring is sheathed at the lower end of each guide post; a cold water plate is horizontally fixed at the bottom end part of each guide post; the upper ends of the springs are in contact with the lower surface of the mounting plate; the lower ends of the springs are in contact with the upper surfaces of the cold water plates; the cold water plates are over against the film liner plate; and cold water cavity is arranged in each cold water plate. A heat-shrinkable film product is cooled and prepressed due to the arrangement of the cold water plates, so that the temperature of the surface of the product is unlikely to be risen in a large range when the heat sealing knife is in surface contact with the heat-shrinkable film product, and the shrinkage mass of a film surface is effectively controlled in a heat sealing process.

Description

The Bag Making Machine heat sealing mechanism

Technical field

The utility model relates to multilayer coextruding pyrocondensation film back segment production process equipment, relates in particular to the Bag Making Machine heat sealing mechanism.

Background technology

At present, thermal shrinkage type high barrier food package film is mainly used in the packing of cold fresh meat, seafood food.

The heat shrinkage film bag-making equipment is of a great variety on the market, wherein in heat seal process, because face will touch high temperature inevitably, shrinks so face has to some extent, and the sack profile after causing being shaped is not attractive in appearance, and disunity.How realizing the heat-sealing of shrink film, and reduce the thermal shrinking quantity of goods in the heat seal process as far as possible, is a great problem of present industry.Therefore, the optimization to existing equipment improves extremely urgent.

Summary of the invention

The purpose of the utility model is to overcome the deficiency that prior art exists, and a kind of Bag Making Machine heat sealing mechanism is provided.

The purpose of the utility model realizes through following technical scheme:

The Bag Making Machine heat sealing mechanism, characteristics: above the film backing plate, be provided with elevating mechanism, horizontal fixed has installing plate on the elevating mechanism; The centre of installing plate lower surface is vertically installed with hot knife, and hot knife is right against the film backing plate, is positioned at that symmetry has a pair of through hole on the installing plate of hot knife both sides; All be hung with guide pillar in each through hole, through hole is all passed in the upper end of each guide pillar, and the top ends of each guide pillar all is connected with locking nut; The lower end of each guide pillar all is equipped with spring; The bottom average level of each guide pillar is fixed with the cold water plate, and the upper end of said spring contacts with the lower surface of installing plate, and the lower end of said spring contacts with the upper surface of cold water plate; Said cold water plate is right against the film backing plate, is equipped with cold water cavity in each cold water plate.

Further, above-mentioned Bag Making Machine heat sealing mechanism, wherein, the cold water cavity in said each cold water plate is all through pipeline connection Cold water supply system.

The substantive distinguishing features of the utility model technical scheme is mainly reflected in progressive:

Through around the heat-sealing calandria, the cold water plate being set the heat shrinkage film goods are carried out cold prepressing; Make heat shrink films before heat-sealing, get into low-temperature condition; When hot knife contacts with heat shrinkage film goods face, be unlikely to the large-scale temperature of product surface is raise, thereby controlled the amount of contraction of face in the heat seal process effectively; Make the sack uniform specification property of moulding higher, be more conducive to carrying out automatically of later process.Improve the appearance characteristics of product greatly, significantly improved prouctiveness.

Description of drawings

Below in conjunction with accompanying drawing the utility model technical scheme is described further:

Fig. 1: the structural representation of the utility model.

The specific embodiment

As shown in Figure 1, the Bag Making Machine heat sealing mechanism is provided with elevating mechanism 8 above film backing plate 7; Horizontal fixed has installing plate 1 on the elevating mechanism 8, and the centre of installing plate 1 lower surface is vertically installed with hot knife 5, and hot knife 5 is right against film backing plate 7; Be positioned at that symmetry has a pair of through hole on the installing plate of hot knife both sides, all be hung with guide pillar 2 in each through hole, through hole is all passed in the upper end of each guide pillar 2; The top ends of each guide pillar all is connected with locking nut; The lower end of each guide pillar 2 all is equipped with spring 3, and the bottom average level of each guide pillar 2 is fixed with cold water plate 4, and the upper end of spring 3 contacts with the lower surface of installing plate 1; The lower end of spring 3 contacts with the upper surface of cold water plate 4; Cold water plate 4 is right against film backing plate 7, is equipped with cold water cavity in each cold water plate 4, and the cold water cavity in each cold water plate is all through pipeline connection Cold water supply system.

During concrete the application, elevating mechanism 8 drive installing plates 1 press down or rise, when pressing down; With charging into low-temperature circulating water in the two cold water plate cold water cavities, heat shrinkage film goods 6 place on the film backing plate 7 earlier, and the cold water plate 4 of installing plate 1 descending drive guide pillar 2 bottoms is descending; Cold water plate 4 is earlier with 6 compactings of heat shrinkage film goods, and installing plate 1 continues descending, and the upper end of guide pillar 2 and installing plate 1 are separated; Spring 3 is in compressive state, and hot knife 5 continues to press down, and the heat shrinkage film goods 6 of bilayer is pressed to film backing plate 7 seal rapidly.

This mechanism is provided with the cold water board component of inner flow passage; Make heat shrink films before heat-sealing, get into low-temperature condition; When hot knife 5 contacts with heat shrinkage film goods face, be unlikely to the large-scale temperature of product surface is raise, thereby controlled the amount of contraction of face in the heat seal process effectively; Make the sack uniform specification property of moulding higher, be more conducive to carrying out automatically of later process.

In sum, the utility model is novel in design, through around the heat-sealing calandria, the cold water plate being set the heat shrinkage film goods is carried out cold prepressing, seals, thereby effectively controls the amount of contraction of making mouth in the bag process, guarantees sack good surface appearance characteristic; Normal operation to Bag Making Machine provides powerful guarantee, has improved the appearance characteristics of product greatly, improves prouctiveness.

What need understand is: the above only is the preferred implementation of the utility model; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. Bag Making Machine heat sealing mechanism, it is characterized in that: above the film backing plate, be provided with elevating mechanism, horizontal fixed has installing plate on the elevating mechanism; The centre of installing plate lower surface is vertically installed with hot knife, and hot knife is right against the film backing plate, is positioned at that symmetry has a pair of through hole on the installing plate of hot knife both sides; All be hung with guide pillar in each through hole, through hole is all passed in the upper end of each guide pillar, and the top ends of each guide pillar all is connected with locking nut; The lower end of each guide pillar all is equipped with spring; The bottom average level of each guide pillar is fixed with the cold water plate, and the upper end of said spring contacts with the lower surface of installing plate, and the lower end of said spring contacts with the upper surface of cold water plate; Said cold water plate is right against the film backing plate, is equipped with cold water cavity in each cold water plate.

2. Bag Making Machine heat sealing mechanism according to claim 1 is characterized in that: the cold water cavity in said each cold water plate is all through pipeline connection Cold water supply system.