CN101549574B

CN101549574B - Bag-making machine cooler

Info

Publication number: CN101549574B
Application number: CN2009100744063A
Authority: CN
Inventors: 方洲; 姜志绘; 柴红顺; 陈宝生; 杨茹; 杨红涛; 谢晓霞
Original assignee: HEBEI NOVEL PACKING CO Ltd
Current assignee: HEBEI NOVEL PACKING CO Ltd
Priority date: 2009-05-20
Filing date: 2009-05-20
Publication date: 2011-03-30
Anticipated expiration: 2029-05-20
Also published as: CN101549574A

Abstract

The present invention relates to a plastic packaging machine, and specifically to an improved bag-making machine cooler. The invention belongs to the field of packaging machine. The structure comprises a cooling knife and a backing plate which are corresponding up-and-down. The cooling knife is hollow. Two sides of knife body are installed with a water inlet pipe and a water outlet pipe. The bottom part of knife body is installed with a plurality of straight-through grooves after improvement. The invention uses the thermal stable contraction and restorable elastic deformation character of plastic, and adds a plurality of straight-through grooves which are in-parallel installed separately on the base of normal cooling knife. The material film of packaging bag is pre-stretched. The crease phenomenon of packaging bag product at the front pattern corresponding with the middle packaging after the shaping of middle-packaging produced bag is settled. The product quality is stabilized and the production efficiency is increased.

Description

Bag-making machine cooler

Technical field

The present invention relates to a kind of plastics package machinery, be specially a kind of improved bag-making machine cooler, belong to packing machinery technology.

Background technology

Plastic bag making machine is a kind of machinery commonly used in the plastics package machinery, and it walks to expect that by batch (-type) mechanism drives the material film and finishes the bag operation by scalding cutter, cooling knife, cutting knife respectively; Walk to expect mechanism's intermitten, can realize automated production.In material film heat seal operation, it is higher to scald the cutter temperature, expects that then film cools off via cooling knife, after the cutting knife cutting, and a plurality of finished bags packaging and warehousing that overlaps.

In the practical application, middle envelope bag product quantity in flexible packing products is very big, be representative products with composite plastic films such as BOPP/PE, NY/PE, BOPP/CPP again wherein, in the production process, after the middle envelope heat seal bag to the packaging bag back, the front pattern of middle envelope position correspondence is because the influence of envelope position high temperature in being subjected to, shrinkage can take place after the cooling in composite membrane naturally, produce gauffer, influenced the outward appearance of product, severe patient may be rejected by the client.In order to change above-mentioned defective, thermoplasticity principle according to composite membrane (is that the forfeiture of composite membrane temperature is slow, the product ST is long, the shrinkage factor height, otherwise shrinkage factor is low), in the actual production, in order to reduce the product shrinkage factor, usually by reducing speed of production, reducing cooling water temperature, increase cooling rate to reach, shorten ST, reduce the product shrinkage factor.Adopt and reduce cooling water temperature, DeGrain and very difficult the realization; And the reduction speed of production has directly influenced output, has increased cost; Take the product that will process, per 20～50 1 fully hang after the cooling packing again spreading out, not only take and hang the space in a large number, and packaging bag is contaminated easily in the process of hanging.

Summary of the invention

The present invention is used to overcome the defective of prior art and a kind of good cooling results, bag-making machine cooler that production efficiency is high is provided.

The alleged problem of the present invention solves with following technical proposals:

A kind of bag-making machine cooler comprises cooling knife, backing plate, and described cooling knife and backing plate are corresponding up and down, cooling knife hollow, and the cutter hub both sides are provided with water inlet pipe and outlet pipe, after the improvement, in the cutter hub bottom a plurality of parallel conduction through concave trough are set.

Above-mentioned bag-making machine cooler is provided with the cushion block corresponding with groove on the described backing plate.

Above-mentioned bag-making machine cooler, described depth of groove 3～50mm, width 10～100mm, spacing 5～100mm.

Above-mentioned bag-making machine cooler, the high 0～25mm of described cushion block, wide 5～100mm.

Above-mentioned bag-making machine cooler, the groove quantity of described cutter hub bottom is set to 3～7.

The present invention utilizes the thermally-stabilised contraction and the recoverable elastic deformation character of plastics, on original cooling knife basis, increased the conduction through concave trough that a plurality of parallel interval are provided with, in refrigerating work procedure, packing Bag Material film is carried out prestretched, solved the gauffer phenomenon at pattern place, the corresponding front of the middle envelope of packaging bag product after the moulding of middle envelope bag, stablize product quality, improved production efficiency.

The present invention is provided with corresponding cushion block on the backing plate corresponding with the cooling knife groove, under the support of cushion block, packing Bag Material film can obtain better prestretched.

The present invention is mainly used in thermoplastic property and seals the bag product in the composite plastic films such as BOPP/PE, NY/PE, BOPP/CPP preferably, has optimized operating procedure, has stablized product quality, and production efficiency is greatly improved.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is Fig. 1 right view.

Each label is expressed as follows among the figure: 1. cooling knife; 2. backing plate; 3. water inlet pipe; 4. outlet pipe; 5. groove; 6. cushion block; 7. composite membrane.

The specific embodiment

As shown in Figure 1, a kind of bag-making machine cooler, comprise corresponding up and down cooling knife 1 and backing plate 2, cooling knife hollow, cutter hub both sides are provided with water inlet pipe 3 and outlet pipe 4, after the improvement, parallel interval is provided with a plurality of straight-through grooves 5 in the cutter hub bottom, depth of groove 3～50mm, width 10～100mm, spacing 5～100mm.The cushion block 6 corresponding with groove, the high 0～25mm of cushion block, wide 5～100mm are set on backing plate.In the production process, cooling water flows into from the left side water inlet pipe, flows out from the right side outlet pipe; Composite membrane 7 is walking to expect that mechanism moves under driving from left to right, and is consistent with the cooling water water (flow) direction, improved cooling effectiveness.The groove quantity of cutter hub bottom is set to 3～7, and groove location is arranged on right side, cutter hub bottom, and is better to the prestretched effect of composite membrane, better stabilized product quality.

Embodiment 1 is a kind of preferred implementation of the present invention, and in the present embodiment, cooling cutter hub bottom is provided with groove, and the groove equidistant parallel is provided with, and wherein, depth of groove is 30mm, width 65mm; The cushion block height is 8mm, width 45mm; Groove and cushion block quantity all are set to 4.Cooling knife and backing plate are corresponding up and down, be composite membrane in the middle of both, along continuous straight runs moves to the right composite membrane under the material roller drive walking, wherein, composite membrane is after the heat seal operation, enter refrigerating work procedure rapidly and stop to treat the position, then, the downward pressing of cooling knife, the cooling knife first half fully cools off composite membrane, latter half makes the composite membrane front pattern and the back side all the fold phenomenon can not take place after the cooling naturally because the stretching action of groove and cushion block can carry out prestretched to composite membrane.Adopt this kind scheme, under 12～20 ℃ of situations of chilling temperature, speed of production is brought up to 100～120 of per minutes by 80 of original per minutes.Actual test performance sees Table 1.

Embodiment 2, and in the present embodiment, the groove equidistant parallel is provided with, and depth of groove is that 25mm, width 60mm, adjacent grooves spacing equate; The high 7mm of cushion block, wide 40mm; Groove and cushion block quantity all are set to 3.Adopt this kind scheme, under 12～15 ℃ of situations of chilling temperature, speed of production is brought up to 110 of per minutes.Actual test performance sees Table 1.

Embodiment 3, and in the present embodiment, the groove equidistant parallel is provided with, and depth of groove is that 20mm, width 55mm, adjacent grooves spacing equate; The high 6mm of cushion block, wide 30mm; Groove and cushion block quantity all are set to 4.Adopt this kind scheme, under 12～15 ℃ of situations of chilling temperature, speed of production is brought up to 100 of per minutes.Actual test performance sees Table 1.

Embodiment 4, and in the present embodiment, the groove equidistant parallel is provided with, and depth of groove is that 17mm, width 50mm, adjacent grooves spacing equate; The high 5mm of cushion block, wide 25mm; Groove and cushion block quantity all are set to 3.Adopt this kind scheme, under 12～15 ℃ of situations of chilling temperature, speed of production is brought up to 90 of per minutes.Actual test performance sees Table 1.

After the present invention uses, but stabilized product quality guarantees the whole corrugationless of packaging bag, and product roll off the production line the back directly vanning seal up for safekeeping, saved the airing operation, saved the time, order of classes or grades at school production efficiency obtains raising in various degree.Actual test performance sees Table 1.

Table 1

Embodiment	Vanning back overall appearance	Poor/mm is shunk at back of the body envelope place sheet up and down	Production efficiency raising/the % of class	The saving open assembly time/hour	Speed of production only/minute
						1	Qualified (non-wrinkled)	0～0.5	66.6	2	120
2	Qualified (non-wrinkled)	0～0.5	54.1	2	110
						3	Qualified (non-wrinkled)	0～0.5	31.6	2	100
4	Qualified (non-wrinkled)	0～0.5	29.1	2	90

Claims

1. bag-making machine cooler, comprise cooling knife (1), backing plate (2), described cooling knife and backing plate are corresponding up and down, cooling knife hollow, the cutter hub both sides are provided with water inlet pipe (3) and outlet pipe (4), it is characterized in that, a plurality of parallel conduction through concave trough (5) are set, the cushion block (6) corresponding with groove is set on the described backing plate in the cutter hub bottom.

2. bag-making machine cooler according to claim 1 is characterized in that, described depth of groove 3mm～50mm, width 10～100mm, spacing 5～100mm.

3. bag-making machine cooler according to claim 1 is characterized in that, the high 0～25mm of described cushion block, wide 5～100mm.

4. according to claim 2 or 3 described bag-making machine coolers, it is characterized in that the groove quantity of described cutter hub bottom is set to 3～7.