CN106827481B

CN106827481B - Film blowing equipment

Info

Publication number: CN106827481B
Application number: CN201710035311.5A
Authority: CN
Inventors: 林安国; 方文龙
Original assignee: Ruian Mingde Machinery Co ltd
Current assignee: Ruian Mingde Machinery Co ltd
Priority date: 2017-01-17
Filing date: 2017-01-17
Publication date: 2022-09-30
Anticipated expiration: 2037-01-17
Also published as: CN106827481A

Abstract

The invention relates to film processing equipment, in particular to film blowing equipment. The technical scheme is as follows: the utility model provides a blown film equipment, which comprises a bod, locate the plastic pellet on the organism and throw the blowing fill, the device is melted in the plastic pellet heating, the blown film device, tensile finishing device and coiling mechanism, the blown film device is including a blown film section of thick bamboo and mould, be equipped with the die rod that extends to outside in the blown film section of thick bamboo, the die rod is including the body of rod and the uide bushing of being connected with a blown film section of thick bamboo, tensile finishing device is including the support, erect a plurality of adjustable roller on the support, the body of rod is the cavity body of rod, its inside air flue that has, set up a plurality of gas pockets rather than inside air flue switches on the body of rod, the lower part of uide bushing is equipped with and corresponds the through-hole that sets up and switch on with this gas pocket department, be equipped with seal assembly between the axial both ends of uide bushing and the body of rod. Adopt above-mentioned technical scheme, provide one kind and prevented film and roller bonding, prevent that the film is impaired, the film direction is stable, improve processingquality's blown film equipment.

Description

Film blowing equipment

Technical Field

The invention relates to film processing equipment, in particular to film blowing equipment.

Background

The film blowing machine is a processing device which heats and melts plastic particles and then blows the plastic particles into a film. The traditional film blowing machine mainly comprises a machine body, a plastic particle feeding hopper arranged on the machine body, a plastic particle heating and melting device connected with the plastic particle feeding hopper, a film blowing device connected with the plastic particle heating and melting device, a stretching and finishing device connected with the film blowing device and a winding device connected with the stretching and finishing device.

The traditional film blowing device mainly comprises a film blowing cylinder and a mold arranged in the film blowing cylinder, wherein a mold rod extending to the outside is arranged in the film blowing cylinder, and the mold rod is mainly used for accumulating blown formed films to realize the purposes of fitting and guiding. The mould rod consists of a rod body connected with the blow moulding cylinder and a guide sleeve sleeved outside the rod body. In the use process, the film is easy to be knotted when entering the guide sleeve, so that the processing quality of the film is influenced.

The traditional stretching finishing device mainly comprises a plurality of roll shafts erected on a machine body, an adjusting roller is connected with a film blowing device, namely, a formed film processed by the film blowing device enters the stretching finishing device to be stretched, and is output to a winding device to be wound through the stretching finishing device.

However, if the film has an adhesive substance, the adhesive substance adheres to the roller, a large amount of the film accumulates on the roller, and the roller is still rotated, which may damage the film.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the film blowing equipment which can prevent the film from being adhered to the roll shaft, prevent the film from being damaged, ensure stable film guiding and improve the processing quality.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a blown film equipment, includes the organism, locates plastic pellet on the organism and throws the blowing hopper, put the plastic pellet heating that the hopper links up with the plastic pellet and melt the device, melt the blown film device that the device links up with the plastic pellet heating, with the tensile finishing device that the blown film device links up and with the coiling mechanism that tensile finishing device links up, the blown film device including a blown film section of thick bamboo and locate the mould in the blown film section of thick bamboo, be equipped with in the blown film section of thick bamboo and extend to outer die rod, the die rod locates the guide sleeve outside the rod body including the body of rod and the cover of being connected with a blown film section of thick bamboo, tensile finishing device including the support, erect a plurality of adjustable roller on the support, its characterized in that: the rod body is a hollow rod body, an air passage is formed in the rod body, a plurality of air holes communicated with the air passage are formed in the rod body, through holes correspondingly arranged and communicated with the air holes are formed in the lower part of the guide sleeve, and a sealing assembly is arranged between the two axial ends of the guide sleeve and the rod body; the roller shaft comprises a driving roller shaft and an auxiliary roller shaft with a gap between the driving roller shaft and the roller shaft, a motor for driving the driving roller shaft is arranged on the support, a plurality of convex strips are uniformly distributed on the outer peripheral surface of the auxiliary roller shaft, the outer surface of each convex strip is arc-shaped, a cooling assembly capable of promoting a film to be rapidly cooled is arranged in the driving roller shaft, extension sleeves are respectively arranged at two axial ends of each guide sleeve, a notch groove is formed in the inner wall of each extension sleeve, each sealing assembly comprises a vertical sealing ring and a sealing block, each sealing block is installed in the notch groove, each sealing block is connected with the vertical sealing ring and is abutted to the inner wall of each guide sleeve in a fit mode, a cavity corresponding to the vertical sealing ring is formed in the inner wall of each extension sleeve, and a channel is formed in the inner wall of each guide sleeve, one end of each channel is communicated with the cavity, and the other end of each channel is communicated with the inner wall of each guide sleeve; the uide bushing is the toper, and its one end towards a blown film section of thick bamboo is the tip, and the other end is the main aspects, inputs the air that has pressure through the vacuum pump in to the air flue of the body of rod, and gas is discharged by the through-hole of uide bushing through the gas pocket, implements the conflict to the film that will adsorb in the uide bushing, makes this film have certain interval at the in-process that rises with the uide bushing, just can implement the touching with the uide bushing when the film moves to uide bushing upper portion.

Adopt above-mentioned technical scheme, through the inside air flue that sets up of the body of rod at the blown film device, set up the gas pocket that switches on with the air flue on the body of rod and set up the through-hole that switches on with the gas pocket on the uide bushing, in the use, when the shaping film enters into body of rod department, input the air that has pressure in the air flue of the body of rod through the vacuum pump, gas is discharged by the through-hole of uide bushing through the gas pocket, to implementing the conflict in the film that will adsorb in the uide bushing, make this film have certain interval at the in-process that rises with the uide bushing, just can implement the touching with the uide bushing when the film moves to uide bushing upper portion, enter into next process after the direction, set up like this and prevent that the film from taking place to tie when entering into the uide bushing, simple structure not only, and can provide the guarantee for the follow-up processingquality of film. Through set up the sand grip on the secondary roller axle, in the use, even have the adhesive on the film, when it was in on the secondary roller axle, then can receive the scraping of sand grip, made the film can not implement the bonding with the roller, the sand grip surface is circular-arc setting then can avoid causing the damage to the film at the hanging in-process of wiping for circular-arc setting. The cooling module's on the drive roll axle setting can be quick implements the cooling to the film of machine-shaping, also can implement the cooling to the binder that has heat on the film in the refrigerated, makes it lose the adhesive force, sets up like this and can prevent that gaseous by the axial both ends of uide bushing discharge, prevents that atmospheric pressure from receiving the influence and can't implement conflict to the film, also can guarantee to implement stable being connected between the axial both ends of uide bushing and the body of rod simultaneously.

The invention is further configured to: the drive roll axle is including the block of two semicircle forms, and wherein the middle part of the block is equipped with the semicircle form arch that extends towards the outside, sets up the mounting hole that supplies the pivot installation on the semicircle form arch, and the cavity with the protruding adaptation of semicircle form is seted up at the middle part of another block, connects through the fastener between the two blocks, cooling module including set up in the internal medium runner of the block that has the cavity.

By adopting the technical scheme, the device is simple in structure and convenient to process.

The invention is further arranged as follows: the medium flow channel comprises a channel which is arranged around the block body and is arranged in a threaded manner, the channel is provided with an inlet and an outlet, and the inlet and the outlet are respectively provided with a detachable sealing plug.

By adopting the technical scheme, the arrangement can realize the distribution of the whole block-shaped body, thereby quickly cooling the film.

The invention is further arranged as follows: the peripheral face equipartition of supplementary roller has a plurality of inserting grooves, the sand grip insert in this inserting groove through the grafting piece.

Adopt above-mentioned technical scheme, the dismouting that can be convenient for the sand grip of setting like this.

The invention is further described below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a film blowing apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a middle rod and a guide sleeve of the film blowing device in the embodiment of the invention;

FIG. 4 is an enlarged view of section I of FIG. 3;

FIG. 5 is a schematic perspective view of a stretch finishing device in an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a driving roller shaft of the stretch finishing device according to an embodiment of the present invention;

FIG. 7 is a schematic sectional view taken along line A-A of FIG. 6;

fig. 8 is a schematic structural diagram of an auxiliary roller shaft of the stretch finishing device in the embodiment of the present invention.

Detailed Description

As shown in fig. 1-8, a film blowing apparatus comprises a machine body 1, a plastic particle feeding hopper 2 disposed on the machine body 1, a plastic particle heating and melting device 3 connected with the plastic particle feeding hopper 2, a film blowing device 4 connected with the plastic particle heating and melting device 3, a stretching and trimming device 5 connected with the film blowing device 4, and a rolling device 6 connected with the stretching and trimming device 5, wherein the film blowing device 4 comprises a film blowing cylinder 41 and a mold 42 disposed in the film blowing cylinder 41, a mold rod 43 extending outward is disposed in the film blowing cylinder 41, the mold rod 43 comprises a rod body 431 connected with the film blowing cylinder 41 and a guide sleeve 432 sleeved outside the rod body 431, the stretching and trimming device 5 comprises a support 51 and a plurality of adjustable roller shafts erected on the support 51, the rod body 431 is a hollow rod body, and has an air passage 4311 inside, the rod body 431 is provided with a plurality of air holes 4312 communicated with the air passage 4311 inside, a through hole 4321 is formed at the lower part of the guide sleeve 432 and is communicated with the air hole 4312, and a sealing assembly 44 is arranged between the two axial ends of the guide sleeve 432 and the rod body 431; the roller shaft comprises a driving roller shaft 52 and an auxiliary roller shaft 53 with a gap between the driving roller shaft 52 and the roller shaft, a motor 54 for driving the driving roller shaft 52 is arranged on a bracket 51, a plurality of convex strips 55 are uniformly distributed on the peripheral surface of the auxiliary roller shaft 53, the outer surface of each convex strip 55 is arc-shaped, a cooling assembly 56 capable of promoting a film to be rapidly cooled is arranged in the driving roller shaft 52, extension sleeves 4322 are respectively arranged at two axial ends of a guide sleeve 432, a notch 43221 is arranged on the inner wall of each extension sleeve 4322, each sealing assembly 44 comprises a vertical sealing ring 441 arranged in the notch 43221 and a sealing block 442 connected with the vertical sealing ring 441 and abutted against the inner wall of the guide sleeve 432 in a fit manner, a cavity 43222 corresponding to the vertical sealing ring 441 is arranged at the inner wall of the notch 43221 of the extension sleeve 4322, and a channel 43223 is arranged on the inner wall of the guide sleeve 432, one end of the guide sleeve 432 is communicated with the cavity 43222 and the other end of the guide sleeve 432; the guide sleeve 432 is tapered, and one end thereof facing the film blowing cylinder 41 is a small end, and the other end thereof is a large end. In the above scheme, by providing the air channel 4311 inside the rod body 431 of the film blowing device 4, providing the air hole 4312 communicated with the air channel 4311 on the rod body 431, and providing the through hole 4321 communicated with the air hole 4312 on the guide sleeve 432, in use, when the forming film enters the rod 431, air with pressure is input into the air channel 4311 of the rod 431 by the vacuum pump, the air is exhausted from the through hole 4321 of the guide sleeve 432 through the air hole 4312, the film to be adhered to the guide sleeve 432 is abutted so as to urge the film to have a certain distance with the guide sleeve 432 in the rising process, when the film moves to the upper part of the guide sleeve 432, the film can touch the guide sleeve 432, and enters the next procedure after being guided, the arrangement can prevent the film from knotting when entering the guide sleeve 432, and not only has simple structure, but also can provide guarantee for the subsequent processing quality of the film. Through set up sand grip 55 on secondary roller 53, in the use, even have the adhesive on the film, when it is on secondary roller 53, then can receive the scraping of sand grip 55, make the film can not implement the adhesion with the roller, the sand grip 55 surface is circular-arc and sets up and then can avoid causing the damage to the film at the hanging in-process of wiping. The cooling assembly 53 arranged on the driving roll shaft 52 can quickly cool the machined and formed film, and can cool the adhesive with heat on the film while cooling, so that the adhesive force is lost, gas can be prevented from being discharged from the two axial ends of the guide sleeve 432, the gas pressure is prevented from being influenced and cannot conflict with the film, and meanwhile, the stable connection between the two axial ends of the guide sleeve 432 and the rod body 431 can be ensured.

In the embodiment of the present invention, the driving roller shaft 52 includes two semicircular block-shaped bodies 521, wherein a semicircular protrusion 5211 extending outward is disposed in the middle of one block-shaped body 521, a mounting hole 5212 for mounting the rotating shaft is disposed on the semicircular protrusion 5211, a cavity 5213 adapted to the semicircular protrusion 5211 is disposed in the middle of the other block-shaped body 521, the two block-shaped bodies 521 are connected by a fastening member, and the cooling assembly 56 includes a medium flow channel disposed in the block-shaped body 521 having the cavity 5213.

In the embodiment of the present invention, in order to achieve uniform distribution of the entire block 521, the film is rapidly cooled. The medium flow channel comprises a channel 561 which is arranged around the block body and is arranged in a threaded manner, the channel 561 is provided with an inlet 562 and an outlet 563, and the inlet 562 and the outlet 563 are respectively provided with a detachable sealing plug 564. The sealing plug 564 may be threaded into the inlet 562 and the outlet 563.

In the embodiment of the present invention, in order to facilitate the installation of the protruding strips 55, a plurality of insertion grooves 531 are uniformly distributed on the outer circumferential surface of the auxiliary roller shaft 53, and the protruding strips 55 are inserted into the insertion grooves 531 through the insertion blocks 551. Of course, it is also possible to provide the male engagement groove on the projecting strip 55 and the male engagement groove on the secondary roller shaft 53.

Claims

1. The utility model provides a blown film equipment, includes the organism, locates plastic pellet on the organism and throws the blowing hopper, put the plastic pellet heating that the hopper links up with the plastic pellet and melt the device, melt the blown film device that the device links up with the plastic pellet heating, with the tensile finishing device that the blown film device links up and with the coiling mechanism that tensile finishing device links up, the blown film device including a blown film section of thick bamboo and locate the mould in the blown film section of thick bamboo, be equipped with in the blown film section of thick bamboo and extend to outer die rod, the die rod locates the guide sleeve outside the rod body including the body of rod and the cover of being connected with a blown film section of thick bamboo, tensile finishing device including the support, erect a plurality of adjustable roller on the support, its characterized in that: the rod body is a hollow rod body, an air passage is formed in the rod body, a plurality of air holes communicated with the air passage are formed in the rod body, through holes correspondingly arranged and communicated with the air holes are formed in the lower part of the guide sleeve, and a sealing assembly is arranged between the two axial ends of the guide sleeve and the rod body; the roller shaft comprises a driving roller shaft and an auxiliary roller shaft with a gap between the driving roller shaft and the roller shaft, a motor for driving the driving roller shaft is arranged on the support, a plurality of convex strips are uniformly distributed on the outer peripheral surface of the auxiliary roller shaft, the outer surface of each convex strip is arc-shaped, a cooling assembly capable of promoting a film to be rapidly cooled is arranged in the driving roller shaft, extension sleeves are respectively arranged at two axial ends of each guide sleeve, notches are formed in the inner walls of the extension sleeves, each sealing assembly comprises a vertical sealing ring and a sealing block, each sealing ring is installed in each notch, each sealing block is connected with the corresponding vertical sealing ring and is abutted against the inner wall of each guide sleeve in a fit mode, cavities corresponding to the vertical sealing rings are formed in the inner walls of the extension sleeves, and a channel is formed in the inner walls of the guide sleeves, one end of each guide sleeve is communicated with the corresponding cavity, and the other end of each guide sleeve is communicated with the inner wall of the corresponding guide sleeve; the uide bushing is the toper, and its one end towards a blown film section of thick bamboo is the tip, and the other end is the main aspects, inputs the air that has pressure through the vacuum pump in to the air flue of the body of rod, and gas is discharged by the through-hole of uide bushing through the gas pocket, implements the conflict to the film that will adsorb in the uide bushing, makes this film have certain interval at the in-process that rises with the uide bushing, just can implement the touching with the uide bushing when the film moves to uide bushing upper portion.

2. The film blowing apparatus according to claim 1, characterized in that: the drive roll axle including the block of two semicircle forms, wherein the middle part of the block is equipped with the semicircle form arch that extends towards the outside, sets up the mounting hole that supplies the pivot installation on the semicircle form arch, the middle part of another block set up with the protruding cavity of adaptation of semicircle form, connect through the fastener between the two blocks, cooling module including set up the internal medium runner of the block that has the cavity.

3. The film blowing apparatus according to claim 2, characterized in that: the medium flow channel comprises a channel which is arranged around a block body and is arranged in a threaded manner, the channel is provided with an inlet and an outlet, and the inlet and the outlet are respectively provided with a detachable sealing plug.

4. The film blowing apparatus according to claim 1, 2 or 3, characterized in that: the peripheral face equipartition of supplementary roller have a plurality of inserting grooves, the sand grip insert in this inserting groove through the grafting piece.