CN108656563A - A kind of production method of plastic packaging bag - Google Patents
A kind of production method of plastic packaging bag Download PDFInfo
- Publication number
- CN108656563A CN108656563A CN201810443978.3A CN201810443978A CN108656563A CN 108656563 A CN108656563 A CN 108656563A CN 201810443978 A CN201810443978 A CN 201810443978A CN 108656563 A CN108656563 A CN 108656563A
- Authority
- CN
- China
- Prior art keywords
- plastic
- plastic foil
- heat
- packaging bag
- production method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
- B29C65/103—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined direct heating both surfaces to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/001—Tubular films, sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
Abstract
A kind of production method of plastic packaging bag, belongs to polybag production technical field.It is characterized in that：Include the following steps：Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, draws the plastic foil after cutting and makes two side superimposed of plastic foil by the mold of both sides, forms tubular；Middle envelope with the speed drawing plastic foil of 40 ~ 120m/min, and to the coincidence part blowing hot-air of plastic foil, completes the middle envelope of plastic foil, forms plastic barrel, and the temperature of hot wind is 118 ~ 192 DEG C, and the wind pressure of hot wind is 0.2 ~ 0.4Mpa；Underseal forms polybag to the lateral hot together-cutting of plastic barrel.The middle envelope of the production method of this plastic packaging bag is carried out in the form of heat radiation, and the heat-sealing to plastic foil can be realized in the distraction procedure of plastic foil, and then improves the heat-sealing speed of plastic foil, and then substantially increases the speed of production of polybag.
Description
Technical field
A kind of production method of plastic packaging bag, belongs to polybag production technical field.
Background technology
Polybag is with plastics（Common plastics have polyethylene, polypropylene, polyester, nylon etc.）For bag made of primary raw material
Son is essential article in people's daily life, is often used to fill other articles.Existing polybag is in production process
In, it needs to seal the both sides of plastic film, to form plastic barrel, plastic barrel is cut off and end is sealed, you can
Form polybag.Existing heat-sealing device is contact heat-sealing device, and heat-sealing could be realized by needing to contact with plastic foil to press, this
It results in plastic foil in heat seal process to need to stop traction, waits again drawing plastic foil after the completion of sealing, plastics
Pulling motion of the film in heat seal process is not continuous, and greatly reduces the speed of heat-sealing, and to plastics in heat seal process
The extruding of bag can cause plastic foil to deform or generate fold on the plastic film, influence the shape of polybag.In addition, heat-sealing is set
For when in use if the traction of plastic foil and heat seal cooperation are inaccurate, it may occur that the problem of tearing plastic foil leads to plastic foil
Damage.
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies of the prior art and provide a kind of form pair by radiation
Plastic foil is sealed, is improved the production method of the plastic packaging bag of the heat-sealing speed of plastic foil.
The technical solution adopted by the present invention to solve the technical problems is：The production method of the plastic packaging bag, feature
It is：Include the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Middle envelope with the speed drawing plastic foil of 40 ~ 120m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 118 ~ 192 DEG C, and the wind pressure of hot wind is 0.2 ~ 0.4Mpa；
Underseal forms polybag to the lateral hot together-cutting of plastic barrel.
Preferably, the shaping roller is more rib rollers.
Preferably, the middle package includes primary middle envelope and secondary middle envelope, and interval is formed on the coincidence part of plastic foil
And two heat-sealing disposed in parallel portion.
Preferably, underseal again after oil spout processing is carried out on the inside of the two layers of plastic film between two heat-sealing portions.
Preferably, the oil spout is handled using printing gloss oil.
Preferably, the two layers of plastic film between two heat-sealing portions carries out tearing or beating micropore processing respectively.
Preferably, semi-permeable membrane is set between the two layers of plastic film between the heat-sealing portion described in two.
Preferably, lateral heat seal is carried out to the plastic barrel using horizontal boiling hot knife.
Preferably, the middle envelope uses heat-sealing device.
Preferably, the heat-sealing device includes equal bellows and the platform for being arranged at intervals on equal bellows side, equal bellows
The side of platform is provided with gas outlet, gas outlet is arranged with platform parallel, and equal bellows are connected with hot blast pipe.
Compared with prior art, advantageous effect possessed by the present invention is：
1, the middle envelope of the production method of this plastic packaging bag is carried out in the form of heat radiation, in the distraction procedure of plastic foil i.e.
The heat-sealing to plastic foil can be achieved, and then improve the heat-sealing speed of plastic foil, since plastic foil need not be squeezed with platform, because
This does not interfere with the shape of polybag or plastic barrel, is more not in be torn since the heat-sealing of plastic foil is inaccurate with traction cooperation
The problem of bad plastic foil, and then substantially increase the speed of production of polybag.
2, more rib rollers are used to the shaping of plastic foil, compared with using round roller shaping, it is non-uniform avoids film roll tension
When film roll side can be caused the problem of folding line occur.
3, middle package includes primary middle envelope and secondary middle envelope, in two layers of modeling in two heat-sealing portions of the coincidence part of polybag
Cavity is formed between material film, condition is provided for the ventilative of polybag.
4, between two layers of plastic film oil spout processing after carry out underseal, when avoiding underseal between two heat-sealing portions two
Layer plastic foil also seals simultaneously, and oil spout is handled using printing gloss oil, avoids two layers of plastic film well in heat seal
It sticks together.
5, Bean is divided to tear or beat micropore processing on the two layers of plastic film between two heat-sealing portions, so as to protect
It demonstrate,proves in plastic foil and atmosphere, the article contained in polybag is avoided to be damaged since environment is closed；Between two layers of plastic film
Semi-permeable membrane is set, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.
6, lateral heat seal is carried out to plastic barrel using horizontal boiling hot knife, can be cut off while heat seal, saves the time,
And heat seal is reliable.
7, equal bellows are provided with gas outlet close to the side of platform, and the uniform edge after equal bellows of the hot wind in hot blast pipe goes out
Gas port sprays, and the side to be sealed of plastic foil is arranged between platform and gas outlet, can either the coincidence part of plastic foil be carried out heat
Envelope, and can avoid the problem that occurring adhesion in plastic barrel.
Description of the drawings
Fig. 1 is the main view schematic cross-sectional view of heat-sealing device.
Fig. 2 is the partial enlarged view at A in Fig. 1.
Fig. 3 is the left view schematic diagram of heat-sealing device.
Fig. 4 is the partial enlarged view at B in Fig. 3.
In figure：1, hot blast pipe 101, venthole 2, briquetting 3, insulating layer 4, platform 5, equal bellows 501, gas outlet
6, cylinder.
Specific implementation mode
Fig. 1 ~ 4 are highly preferred embodiment of the present invention, and 1 ~ 4 the present invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
A kind of production method of plastic packaging bag, includes the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Shaping is carried out to plastic foil using shaping roller, i.e. shaping roller rotates, and plastic foil bypasses shaping roller with some tension, to complete
At the shaping of plastic foil.Using cylindric shaping roller, cylindric shaping roller makes simply, at low cost for traditional shaping, but
It is that film roll side can be caused folding line occur when plastic film roll tension is non-uniform.In the present embodiment, shaping roller using
More rib rollers avoid and cause edge the problem of folding line occur since film roll tension is uneven.Then according to the polybag of production
Size cuts plastic foil.After cutting, traction plastic foil movement, the both sides of plastic foil are symmetrically arranged with mold, mold phase
Adjacent side is the arc of middle part indent, to make two side superimposeds of plastic foil form tubular.
Middle envelope with the speed drawing plastic foil of 80m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 150 DEG C, and the wind pressure of hot wind is 0.3Mpa；
Plastic foil after cutting is drawn, hauling speed 80m/min by servo motor, and passed through in distraction procedure
So that the both sides of plastic foil is folded upward at and overlap, form plastic barrel, coincidence part is 5 ~ 10cm.Then heat-seal is used to plastic barrel
It sets in progress and seals.Envelope and secondary middle envelope during middle package includes once, thus in the coincidence part formation twice heat-sealing portion of plastic foil, two
Heat-sealing portion interval is arranged.The temperature of hot wind is 150 DEG C, and the wind pressure of hot wind is 0.3Mpa.
As shown in Fig. 1 ~ 4：Heat-sealing device includes equal bellows 5 and the platform 4 for being arranged at intervals on 5 side of equal bellows, equal wind
Case 5 is provided with gas outlet 501 close to the side of platform 4, and gas outlet 501 is arranged in parallel with platform 4, and equal bellows 5 are connected with hot wind
Pipe 1.The equal bellows 5 of this polybag or plastic tube heat-sealing device are provided with gas outlet 501 close to the side of platform 4, in hot blast pipe 1
Hot wind uniformly sprayed along gas outlet after equal bellows 5, the setting of side seal of plastic foil platform 4 and gas outlet 501 it
Between, the heat-sealing to plastic foil can be realized in the distraction procedure of plastic foil, and then improve the heat-sealing speed of plastic foil, due to
Plastic foil need not be squeezed with platform 4, therefore not interfere with the shape of polybag or plastic barrel, more be not in due to plastic foil
Heat-sealing it is inaccurate with traction cooperation and the problem of tear plastic foil to shreds.
Platform 4 is arranged at intervals on 5 downside of equal bellows, and the both sides of equal bellows 5 are symmetrically arranged with briquetting 2, and briquetting setting is flat
Between platform 4 and bellows 5.The downside of equal bellows 5 is provided with horizontal gas outlet 501, and gas outlet 501 and the upside of platform 4 are flat
Row setting, gas outlet 501 are smaller than or are equal to 1cm with the upside of platform 4, the hot wind diffusion for avoiding gas outlet 501 from blowing out
Lead to heat loss, and then influences heat-sealing effect.Briquetting 2 can also be not provided between bellows 5 and platform 4.Outside each briquetting 2
It is coated with teflon cloth, sticks together after being heated so as to avoid briquetting 2 and plastic foil, influences the heat-sealing of plastic foil, and
Influence the quality after heat-sealing.The coincidence part of plastic foil can either be sealed, and can avoid occurring adhesion in plastic barrel
Problem.
After the color closed at both ends of equal bellows 5, the top of equal bellows 5 is horizontally disposed cylindrical shape, the lower part of equal bellows 5
Both sides are the taper that from top to bottom width is gradually reduced, to form gas outlet 501 in the downside of equal bellows 5.The two of equal bellows 5
End downside is the rake by end to middle part gradually downward, and two rakes closing setting of equal bellows 5 can ensure whole
The hot wind that a gas outlet 501 is blown out is uniform.
Hot blast pipe 1 is opening up " Contraband " shape, and the length of the vertical portion of hot blast pipe 1 is less than the length of equal bellows 5, and big
Length in gas outlet 501.The vertical portion of hot blast pipe 1 is co-axially located at the top of equal bellows 5, and the both ends of hot blast pipe 1 are upward
Tank wall across equal bellows 5 and stretching, hot blast pipe 1 are tightly connected with equal bellows 5.It is spaced on the tube wall of the vertical portion of hot blast pipe 1
Multiple ventholes 101 are provided with, 1 inner cavity of hot blast pipe is connected to by venthole 101 with 5 inner cavity of equal bellows, makes the hot wind in hot blast pipe 1
It uniformly enters in equal bellows 5, and then ensures that the hot wind that gas outlet 501 is blown out is uniform.
The upper end of two horizontal parts of hot blast pipe 1 is bent outward respectively, forms horizontal docking section, and a docking section is used
In connection hot wind air inlet pipe, another docking section is for connecting hot wind escape pipe.It is both provided with valve on two docking sections, to
Facilitate the flow velocity of hot wind in control hot blast pipe 1, and then facilitates the speed of the hot wind of the blowout of control gas outlet 501.Gas outlet 501
The temperature of the hot wind of blowout is 120 ~ 190 DEG C, and the wind pressure in bellows 5 is 0.2 ~ 0.4Mpa, by adjust hot blast pipe 1 two
The valve of a docking section, you can adjust the wind pressure in equal bellows 5, and then the hot wind for adjusting gas outlet 501 blows out speed, adjusting side
Just.The hauling speed of plastic foil is 40 ~ 120m/min, to ensure to seal effect, can either avoid bonding loosely, and can avoid
It seals overlong time and damages plastic foil.
Hot blast pipe 1 is coated with insulating layer 3, and insulating layer 3, the top of equal bellows 5 are stretched out in two docking sections of hot blast pipe 1
It is arranged in insulating layer 3, to avoid heat-sealing temperature in hot blast pipe 1 from reducing, and then convenient for controlling the hot wind that equal bellows 5 are blown out
Temperature, ensure temperature uniformly and stablize.
Two briquettings 2 gradually lean outward from the bottom to top close to the side of equal bellows 5, the i.e. adjacent side of two briquettings 2
Tiltedly setting to make the spacing of two briquettings 2 gradually increase from the bottom to top, and then ensures extra hot wind by two briquettings 2
It tilts side to flow away, ensures to blow to hot wind even width on plastic foil, and facilitate the width for the hot wind that control blows on plastic foil
Degree, and then facilitate the width in the heat-sealing portion on control plastic foil.Spacing of two briquettings 2 close to the side of platform 4 is 1 ~ 5mm,
So as to control plastic foil heat-sealing portion width.
The downside of briquetting 2 is arranged with the upside interval of platform 4, and the upside of each briquetting 2 is respectively connected with distance regulating mechanism,
In the present embodiment, distance regulating mechanism is vertically arranged cylinder 6, and cylinder 6 is corresponded with briquetting 2, and cylinder 6 is arranged right
2 upside of briquetting of side is answered, the piston rod of cylinder 6 is connected with briquetting and briquetting 2 is driven to lift, to adjust briquetting 2 and platform 4
Spacing.Distance regulating mechanism can also use oil cylinder or electric pushrod.
When heat-sealing, plastic foil setting is bent up and overlaps in 4 downside of platform, the both sides of plastic foil, and platform 4 is made to be located at plastics
In cylinder, and between the coincidence position and gas outlet 501 and platform 4 of plastic foil, the both sides of plastic foil coincidence part are located at two
Between briquetting 2 and platform 4.
Underseal forms polybag to the lateral hot together-cutting of plastic barrel；
The plastic barrel formed after heat-sealing is cooled down, air-cooled or water cooling may be used.After cooling, between two heat-sealing portions
Oil spout processing is carried out on the inside of two layers of plastic film, in the present embodiment, oil spout is handled using printing gloss oil.Oil spout is handled
Afterwards, the two layers of plastic film before two heat-sealing portions is carried out respectively tearing or beating micropore processing, and the tearing part of both sides plastic foil
Or micropore is staggered, and to avoid the article held in polybag from being overflowed by tearing part or micropore, also avoids polybag inner cavity
It is too fast with extraneous draft speed.The lateral hot together-cutting of plastic barrel is formed polybag, then to processing by tearing or after beating micropore
Good polybag is wound, and completes the production of polybag, the carry out transverse direction heat seal using horizontal boiling hot knife to plastic barrel.Due to cut-out
In the process, plastic barrel needs to stop traction, therefore carries out lateral heat seal using horizontal boiling hot knife here, does not interfere with the life of polybag
Produce speed.
Semi-permeable membrane is provided between two layers of plastic film between two heat-sealing portions, semi-permeable membrane allows gas to pass through, and can hinder
Hinder liquid to pass through, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.Also may be used between two layers of plastic film between two heat-sealing portions
To be not provided with semi-permeable membrane.
Two steps of middle envelope and underseal can be exchanged sequentially.
It is compared such as using the production method of this plastic packaging bag and the production efficiency of traditional plastic packaging bag production method
Following table：
And can only make single bag using traditional plastic packaging bag production method, and the production method of the plastic packaging bag of the present invention
Single bag can be made, film roll can also be made.
Embodiment 2
A kind of production method of plastic packaging bag, includes the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Shaping is carried out to plastic foil using shaping roller, i.e. shaping roller rotates, and plastic foil bypasses shaping roller with some tension, to complete
At the shaping of plastic foil.Using cylindric shaping roller, cylindric shaping roller makes simply, at low cost for traditional shaping, but
It is that film roll side can be caused folding line occur when plastic film roll tension is non-uniform.In the present embodiment, shaping roller using
More rib rollers avoid and cause edge the problem of folding line occur since film roll tension is uneven.Then according to the polybag of production
Size cuts plastic foil.After cutting, traction plastic foil movement, the both sides of plastic foil are symmetrically arranged with mold, mold phase
Adjacent side is the arc of middle part indent, to make two side superimposeds of plastic foil form tubular.
Middle envelope with the speed drawing plastic foil of 40m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 120 DEG C, and the wind pressure of hot wind is 0.2Mpa；
Plastic foil after cutting is drawn, hauling speed 40m/min by servo motor, and passed through in distraction procedure
So that the both sides of plastic foil is folded upward at and overlap, forms plastic barrel.Then it is sealed in being carried out using heat-sealing device to plastic barrel.Middle envelope
Including primary middle envelope and secondary middle envelope, to form twice heat-sealing portion in the coincidence part of plastic foil, two heat-sealing portions interval is arranged.
The temperature of hot wind is 120 DEG C, and the wind pressure of hot wind is 0.2Mpa.
Underseal forms polybag to the lateral hot together-cutting of plastic barrel；
The plastic barrel formed after heat-sealing is cooled down, air-cooled or water cooling may be used.After cooling, between two heat-sealing portions
Oil spout processing is carried out on the inside of two layers of plastic film, in the present embodiment, oil spout is handled using printing gloss oil.Oil spout is handled
Afterwards, the two layers of plastic film before two heat-sealing portions is carried out respectively tearing or beating micropore processing, and the tearing part of both sides plastic foil
Or micropore is staggered, and to avoid the article held in polybag from being overflowed by tearing part or micropore, also avoids polybag inner cavity
It is too fast with extraneous draft speed.The lateral hot together-cutting of plastic barrel is formed polybag, then to processing by tearing or after beating micropore
Good polybag is wound, and completes the production of polybag, the carry out transverse direction heat seal using horizontal boiling hot knife to plastic barrel.Due to cut-out
In the process, plastic barrel needs to stop traction, therefore carries out lateral heat seal using horizontal boiling hot knife here, does not interfere with the life of polybag
Produce speed.
Semi-permeable membrane is provided between two layers of plastic film between two heat-sealing portions, semi-permeable membrane allows gas to pass through, and can hinder
Hinder liquid to pass through, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.Also may be used between two layers of plastic film between two heat-sealing portions
To be not provided with semi-permeable membrane.
Two sequence of steps of middle envelope and underseal can exchange.
Embodiment 3
A kind of production method of plastic packaging bag, includes the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Shaping is carried out to plastic foil using shaping roller, i.e. shaping roller rotates, and plastic foil bypasses shaping roller with some tension, to complete
At the shaping of plastic foil.Using cylindric shaping roller, cylindric shaping roller makes simply, at low cost for traditional shaping, but
It is that film roll side can be caused folding line occur when plastic film roll tension is non-uniform.In the present embodiment, shaping roller using
More rib rollers avoid and cause edge the problem of folding line occur since film roll tension is uneven.Then according to the polybag of production
Size cuts plastic foil.After cutting, traction plastic foil movement, the both sides of plastic foil are symmetrically arranged with mold, mold phase
Adjacent side is the arc of middle part indent, to make two side superimposeds of plastic foil form tubular.
Middle envelope with the speed drawing plastic foil of 120m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 190 DEG C, and the wind pressure of hot wind is 0.4Mpa；
Plastic foil after cutting is drawn, hauling speed 120m/min by servo motor, and led in distraction procedure
Crossing makes the both sides of plastic foil be folded upward at and overlaps, and forms plastic barrel.Then it is sealed in being carried out using heat-sealing device to plastic barrel.In
Package includes primary middle envelope and secondary middle envelope, and to form twice heat-sealing portion in the coincidence part of plastic foil, two heat-sealing portions interval is set
It sets.The temperature of hot wind is 190 DEG C, and the wind pressure of hot wind is 0.4Mpa.
Underseal forms polybag to the lateral hot together-cutting of plastic barrel；
The plastic barrel formed after heat-sealing is cooled down, air-cooled or water cooling may be used.After cooling, between two heat-sealing portions
Oil spout processing is carried out on the inside of two layers of plastic film, in the present embodiment, oil spout is handled using printing gloss oil.Oil spout is handled
Afterwards, the two layers of plastic film before two heat-sealing portions is carried out respectively tearing or beating micropore processing, and the tearing part of both sides plastic foil
Or micropore is staggered, and to avoid the article held in polybag from being overflowed by tearing part or micropore, also avoids polybag inner cavity
It is too fast with extraneous draft speed.The lateral hot together-cutting of plastic barrel is formed polybag, then to processing by tearing or after beating micropore
Good polybag is wound, and completes the production of polybag, the carry out transverse direction heat seal using horizontal boiling hot knife to plastic barrel.Due to cut-out
In the process, plastic barrel needs to stop traction, therefore carries out lateral heat seal using horizontal boiling hot knife here, does not interfere with the life of polybag
Produce speed.
Semi-permeable membrane is provided between two layers of plastic film between two heat-sealing portions, semi-permeable membrane allows gas to pass through, and can hinder
Hinder liquid to pass through, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.Also may be used between two layers of plastic film between two heat-sealing portions
To be not provided with semi-permeable membrane.
Two sequence of steps of middle envelope and underseal can exchange.
Embodiment 4
A kind of production method of plastic packaging bag, includes the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Shaping is carried out to plastic foil using shaping roller, i.e. shaping roller rotates, and plastic foil bypasses shaping roller with some tension, to complete
At the shaping of plastic foil.Using cylindric shaping roller, cylindric shaping roller makes simply, at low cost for traditional shaping, but
It is that film roll side can be caused folding line occur when plastic film roll tension is non-uniform.In the present embodiment, shaping roller using
More rib rollers avoid and cause edge the problem of folding line occur since film roll tension is uneven.Then according to the polybag of production
Size cuts plastic foil.After cutting, traction plastic foil movement, the both sides of plastic foil are symmetrically arranged with mold, mold phase
Adjacent side is the arc of middle part indent, to make two side superimposeds of plastic foil form tubular.
Middle envelope with the speed drawing plastic foil of 40m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 192 DEG C, and the wind pressure of hot wind is 0.4Mpa；
Plastic foil after cutting is drawn, hauling speed 40m/min by servo motor, and passed through in distraction procedure
So that the both sides of plastic foil is folded upward at and overlap, forms plastic barrel.Then it is sealed in being carried out using heat-sealing device to plastic barrel.Middle envelope
Including primary middle envelope and secondary middle envelope, to form twice heat-sealing portion in the coincidence part of plastic foil, two heat-sealing portions interval is arranged.
The temperature of hot wind is 192 DEG C, and the wind pressure of hot wind is 0.4Mpa.
Underseal forms polybag to the lateral hot together-cutting of plastic barrel；
The plastic barrel formed after heat-sealing is cooled down, air-cooled or water cooling may be used.After cooling, between two heat-sealing portions
Oil spout processing is carried out on the inside of two layers of plastic film, in the present embodiment, oil spout is handled using printing gloss oil.Oil spout is handled
Afterwards, the two layers of plastic film before two heat-sealing portions is carried out respectively tearing or beating micropore processing, and the tearing part of both sides plastic foil
Or micropore is staggered, and to avoid the article held in polybag from being overflowed by tearing part or micropore, also avoids polybag inner cavity
It is too fast with extraneous draft speed.The lateral hot together-cutting of plastic barrel is formed polybag, then to processing by tearing or after beating micropore
Good polybag is wound, and completes the production of polybag, the carry out transverse direction heat seal using horizontal boiling hot knife to plastic barrel.Due to cut-out
In the process, plastic barrel needs to stop traction, therefore carries out lateral heat seal using horizontal boiling hot knife here, does not interfere with the life of polybag
Produce speed.
Semi-permeable membrane is provided between two layers of plastic film between two heat-sealing portions, semi-permeable membrane allows gas to pass through, and can hinder
Hinder liquid to pass through, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.Also may be used between two layers of plastic film between two heat-sealing portions
To be not provided with semi-permeable membrane.
Two sequence of steps of middle envelope and underseal can exchange.
Embodiment 5
A kind of production method of plastic packaging bag, includes the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Shaping is carried out to plastic foil using shaping roller, i.e. shaping roller rotates, and plastic foil bypasses shaping roller with some tension, to complete
At the shaping of plastic foil.Using cylindric shaping roller, cylindric shaping roller makes simply, at low cost for traditional shaping, but
It is that film roll side can be caused folding line occur when plastic film roll tension is non-uniform.In the present embodiment, shaping roller using
More rib rollers avoid and cause edge the problem of folding line occur since film roll tension is uneven.Then according to the polybag of production
Size cuts plastic foil.After cutting, traction plastic foil movement, the both sides of plastic foil are symmetrically arranged with mold, mold phase
Adjacent side is the arc of middle part indent, to make two side superimposeds of plastic foil form tubular.
Middle envelope with the speed drawing plastic foil of 120m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 118 DEG C, and the wind pressure of hot wind is 0.2Mpa；
Plastic foil after cutting is drawn, hauling speed 120m/min by servo motor, and led in distraction procedure
Crossing makes the both sides of plastic foil be folded upward at and overlaps, and forms plastic barrel.Then it is sealed in being carried out using heat-sealing device to plastic barrel.In
Package includes primary middle envelope and secondary middle envelope, and to form twice heat-sealing portion in the coincidence part of plastic foil, two heat-sealing portions interval is set
It sets.The temperature of hot wind is 118 DEG C, and the wind pressure of hot wind is 0.2Mpa.
Underseal forms polybag to the lateral hot together-cutting of plastic barrel；
The plastic barrel formed after heat-sealing is cooled down, air-cooled or water cooling may be used.After cooling, between two heat-sealing portions
Oil spout processing is carried out on the inside of two layers of plastic film, in the present embodiment, oil spout is handled using printing gloss oil.Oil spout is handled
Afterwards, the two layers of plastic film before two heat-sealing portions is carried out respectively tearing or beating micropore processing, and the tearing part of both sides plastic foil
Or micropore is staggered, and to avoid the article held in polybag from being overflowed by tearing part or micropore, also avoids polybag inner cavity
It is too fast with extraneous draft speed.The lateral hot together-cutting of plastic barrel is formed polybag, then to processing by tearing or after beating micropore
Good polybag is wound, and completes the production of polybag, the carry out transverse direction heat seal using horizontal boiling hot knife to plastic barrel.Due to cut-out
In the process, plastic barrel needs to stop traction, therefore carries out lateral heat seal using horizontal boiling hot knife here, does not interfere with the life of polybag
Produce speed.
Semi-permeable membrane is provided between two layers of plastic film between two heat-sealing portions, semi-permeable membrane allows gas to pass through, and can hinder
Hinder liquid to pass through, can either ensure that the environment in polybag can ventilate with external environment, and the water in polybag can be avoided
Shunting is lost, additionally it is possible to extraneous moisture be avoided to enter in polybag.Also may be used between two layers of plastic film between two heat-sealing portions
To be not provided with semi-permeable membrane.
Two sequence of steps of middle envelope and underseal can exchange.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, according to the technical essence of the invention to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of production method of plastic packaging bag, it is characterised in that：Include the following steps：
Shaping using shaping roller to plastic foil shaping, and cuts the plastic foil after shaping, traction cut after plastic foil and according to
Mold by both sides makes two side superimposed of plastic foil, forms tubular；
Middle envelope with the speed drawing plastic foil of 40 ~ 120m/min, and to the coincidence part blowing hot-air of plastic foil, completes plastic foil
Middle envelope forms plastic barrel, and the temperature of hot wind is 118 ~ 192 DEG C, and the wind pressure of hot wind is 0.2 ~ 0.4Mpa；
Underseal forms polybag to the lateral hot together-cutting of plastic barrel.
2. the production method of plastic packaging bag according to claim 1, it is characterised in that：The shaping roller is more ribs
Roller.
3. the production method of plastic packaging bag according to claim 1, it is characterised in that：During the middle package includes once
Envelope and secondary middle envelope, and interval and two heat-sealing disposed in parallel portion are formed on the coincidence part of plastic foil.
4. the production method of plastic packaging bag according to claim 3, it is characterised in that：Between two heat-sealing portions
Two layers of plastic film on the inside of carry out after oil spout processing underseal again.
5. the production method of plastic packaging bag according to claim 4, it is characterised in that：What the oil spout processing used
It is printing gloss oil.
6. the production method of plastic packaging bag according to claim 3, it is characterised in that：Between two heat-sealing portions
Two layers of plastic film carry out respectively tear or beat micropore handle.
7. the production method of plastic packaging bag according to claim 6, it is characterised in that：Heat-sealing portion described in two it
Between two layers of plastic film between semi-permeable membrane is set.
8. the production method of plastic packaging bag according to claim 1, it is characterised in that：Using horizontal boiling hot knife to the modeling
Barrel carries out lateral heat seal.
9. the production method of plastic packaging bag according to claim 1, it is characterised in that：The middle envelope uses heat-seal
It sets.
10. the production method of plastic packaging bag according to claim 9, it is characterised in that：The heat-sealing device includes
Equal bellows（5）And it is arranged at intervals on equal bellows（5）The platform of side（4）, equal bellows（5）Close to platform（4）Side setting
There is gas outlet（501）, gas outlet（501）With platform（4）It is arranged in parallel, equal bellows（5）It is connected with hot blast pipe（1）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443978.3A CN108656563B (en) | 2018-05-10 | 2018-05-10 | Production method of plastic packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443978.3A CN108656563B (en) | 2018-05-10 | 2018-05-10 | Production method of plastic packaging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108656563A true CN108656563A (en) | 2018-10-16 |
| CN108656563B CN108656563B (en) | 2020-07-24 |
Family
ID=63778269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810443978.3A Active CN108656563B (en) | 2018-05-10 | 2018-05-10 | Production method of plastic packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108656563B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803350A (en) * | 2019-10-31 | 2020-02-18 | 青岛晨峰智能装备有限公司 | Hot air die head device for adhesion forming of square-bottom packaging bag |
| CN111841664A (en) * | 2020-08-05 | 2020-10-30 | 巨轮智能装备股份有限公司 | Continuous quick-heating sealing method for plastic membrane for manufacturing ion exchange membrane |
| CN112571863A (en) * | 2020-10-26 | 2021-03-30 | 郑州市彦峰塑料包装有限公司 | Flexible packaging plastic bag forming process and special trimming device |
| CN114228178A (en) * | 2021-12-16 | 2022-03-25 | 南通天维机械设备有限公司 | Medical plastic bag heat sealing die and using method thereof |
| CN114801239A (en) * | 2022-04-13 | 2022-07-29 | 上海新旺科技有限公司 | Special-shaped two-dimensional high-temperature release flexible air bag and forming process |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322584A (en) * | 1962-10-03 | 1967-05-30 | Welin-Berger Guy John Olof | Method of bonding webs of plastic threads by means of gas jets |
| CN201856407U (en) * | 2010-10-29 | 2011-06-08 | 广州市国研机械设备制造有限公司 | Plastic bag making machine |
| CN106956442A (en) * | 2017-03-30 | 2017-07-18 | 盐城宏德塑业有限公司 | A kind of production technology of plastic packaging bag |
| CN107458029A (en) * | 2017-08-09 | 2017-12-12 | 蔡任文 | A kind of plastic packaging bag and preparation method thereof |
-
2018
- 2018-05-10 CN CN201810443978.3A patent/CN108656563B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3322584A (en) * | 1962-10-03 | 1967-05-30 | Welin-Berger Guy John Olof | Method of bonding webs of plastic threads by means of gas jets |
| CN201856407U (en) * | 2010-10-29 | 2011-06-08 | 广州市国研机械设备制造有限公司 | Plastic bag making machine |
| CN106956442A (en) * | 2017-03-30 | 2017-07-18 | 盐城宏德塑业有限公司 | A kind of production technology of plastic packaging bag |
| CN107458029A (en) * | 2017-08-09 | 2017-12-12 | 蔡任文 | A kind of plastic packaging bag and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110803350A (en) * | 2019-10-31 | 2020-02-18 | 青岛晨峰智能装备有限公司 | Hot air die head device for adhesion forming of square-bottom packaging bag |
| CN110803350B (en) * | 2019-10-31 | 2022-05-20 | 青岛晨峰智能装备有限公司 | Hot air die head device for adhesion forming of square-bottom packaging bag |
| CN111841664A (en) * | 2020-08-05 | 2020-10-30 | 巨轮智能装备股份有限公司 | Continuous quick-heating sealing method for plastic membrane for manufacturing ion exchange membrane |
| CN112571863A (en) * | 2020-10-26 | 2021-03-30 | 郑州市彦峰塑料包装有限公司 | Flexible packaging plastic bag forming process and special trimming device |
| CN114228178A (en) * | 2021-12-16 | 2022-03-25 | 南通天维机械设备有限公司 | Medical plastic bag heat sealing die and using method thereof |
| CN114228178B (en) * | 2021-12-16 | 2023-12-12 | 南通靖航信息科技有限公司 | Medical plastic bag heat sealing die and application method thereof |
| CN114801239A (en) * | 2022-04-13 | 2022-07-29 | 上海新旺科技有限公司 | Special-shaped two-dimensional high-temperature release flexible air bag and forming process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108656563B (en) | 2020-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108656563A (en) | A kind of production method of plastic packaging bag | |
| US8070359B2 (en) | Plastic bag with pour spout and reinforced bottom end | |
| US4235653A (en) | Method for making reclosable bags | |
| CN206140936U (en) | Sealing device and three -dimensional inkjet printer | |
| US4249982A (en) | Apparatus for making reclosable bags | |
| US5054270A (en) | Bag support/spreader for vertical form, fill and seal machines | |
| EP1198343B1 (en) | Method and apparatus for making internally-reinforced bag assembly | |
| JPWO2011001528A1 (en) | Vertical filling and packaging machine and method for producing contents-containing packaging bag | |
| CN105563890B (en) | A kind of excision technique rim charge directly makes the device and method of packaging bag | |
| CN106182900B (en) | A kind of interior bagging apparatus of cylinder weaving bag set | |
| NO764276L (en) | THE TUBE SHAPE CONTAINS AS WELL AS PROCEDURE AND SHAPE FOR MANUFACTURE OF THE SAME. | |
| CN105329470B (en) | Vertical bag end seal device | |
| CN208277459U (en) | A kind of polybag or plastic tube heat-sealing device | |
| CN109203576A (en) | A kind of continuous type plastic film heat sealing machine | |
| CN206663867U (en) | Bag film making apparatus | |
| CN205818653U (en) | A kind of flanging plastic packaging one roller printer | |
| CN108501387A (en) | A kind of polybag or plastic tube heat-sealing device | |
| CN205010566U (en) | Positioner that bloies of packaging film | |
| CN209740340U (en) | Automatic film wrapping machine diolame levels device | |
| CN209600933U (en) | A kind of unusual charm egg package machine | |
| CN108100368A (en) | A kind of packaging facilities with exhaust gear | |
| CN211197219U (en) | Novel air buffer body with air locking function | |
| CN102951331A (en) | Folded paper-plastic composite bottle-shaped container | |
| US3124915A (en) | Method of forming a lined carton | |
| CN206798184U (en) | Rolling continuous packaging bags body and fervent knife mold and packing box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A production method of plastic packaging bag Effective date of registration: 20211217 Granted publication date: 20200724 Pledgee: Shandong Linzi Rural Commercial Bank Co.,Ltd. Pledgor: ZIBO JIELIN PLASTIC PIPE Co.,Ltd. Registration number: Y2021980015371 |