CN111844798A

CN111844798A - Film blowing equipment

Info

Publication number: CN111844798A
Application number: CN201910338592.0A
Authority: CN
Inventors: 旷奇章
Original assignee: Guangzhou Jinzhang Plastic Products Co ltd
Current assignee: Guangzhou Jinzhang Plastic Products Co ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-10-30

Abstract

The invention provides film blowing equipment which comprises a film blowing machine, a winding machine and an intermediate processing device arranged between the film blowing machine and the winding machine, wherein the intermediate processing device comprises: the corona treatment module and the flattening module are sequentially arranged along the winding direction of the plastic film; corona module passes through corona head to the surface implementation corona treatment of plastic film one side, it passes through to open up flat module active exhibition carry over pinch rolls with extrusion force between the supplementary exhibition carry over pinch rolls butt is to passing plastic film realizes the exhibition flat and pulls, has guaranteed plastic film is in it can keep leveling to open up the flat module front and back homoenergetic. Therefore, the film blowing equipment provided by the invention integrates the functions of corona treatment and flattening treatment, ensures that the plastic film is in a flattened state during corona treatment and rolling, and solves the problems of corona dead corners, uneven rolling and the like caused by folds of the plastic film.

Description

Film blowing equipment

Technical Field

The invention relates to the technical field of film blowing equipment, in particular to film blowing equipment for plastic films.

Background

The film blowing machine is processing equipment which heats plastic particles to be melted, extrudes the plastic particles into a die head through an extrusion device to be blown into film bubbles, and finally winds the plastic particles into coiled materials through a winding machine. The plastic film manufacturers produce plastic films or plastic bags with different thicknesses and sizes according to the requirements of different customers, but the thickness of the common plastic films or plastic bags is thinner, so that the wrinkles appear on the surface part of the plastic films through the repeated conveying of the traction roller and the guide roller during rolling, the rolled coiled materials are uneven after continuous rolling, the flattening process needs to be added in the subsequent processing to further flatten the plastic films, the processing process is increased, and the production efficiency is reduced.

In order to meet the market demand and improve the purchasing desire of consumers, a plastic film manufacturer needs to print various patterns or characters on a rolled plastic film to improve the product appearance, but the outer surface of the plastic film is smooth after film blowing, the patterns or characters are directly printed on the outer surface of the plastic film, the adhesion force of ink is poor, and the color is easy to fade, so that the manufacturer needs to perform printing operation on the rolled plastic film after the plastic film is rolled, before printing, perform corona treatment on the outer surface of the plastic film to increase the roughness of the outer surface of the plastic film and improve the adhesion force of the ink on the outer surface, but due to the existence of the wrinkles, dead corners of wrinkles in a part of regions cannot be subjected to corona treatment during the corona treatment, namely, the existence of the corona dead corners causes the condition that the part of regions are not subjected to corona treatment, and the ink adhesion force of the ink in the subsequent printing is higher than that of the oil in other corona-treated regions Poor ink adhesion.

Disclosure of Invention

In view of the above situation, the invention provides a film blowing device, which integrates the functions of corona treatment and flattening treatment, ensures that the plastic film is in a flattened state during corona treatment and rolling, and eliminates the problems of corona dead corners, uneven rolling and the like caused by wrinkles of the plastic film.

To achieve the object, the present invention provides a film blowing apparatus comprising: the film blowing machine is used for blowing the plastic in the molten state into film bubbles and then cooling the film bubbles into a plastic film; and a winder for winding the plastic film; and an intermediate processing device, the intermediate processing device is set up in the inflation film manufacturing machine with between the rolling machine, the intermediate processing device includes: the corona treatment module and the flattening module are sequentially arranged along the winding direction of the plastic film; the corona treatment module includes: the corona machine frame, a corona head, a first corona guide roller, a second corona guide roller and a corona controller, wherein the corona head is installed on the corona machine frame along the width direction of the plastic film, the corona controller is electrically connected with the corona head, the first corona guide roller is positioned on the left side of the corona head, the second corona guide roller is positioned below the corona head, the plastic film penetrates through the first corona guide roller, and after the corona head performs corona treatment on the outer surface of one side of the plastic film, the plastic film penetrates out of the second corona guide roller to enter the flattening module; the flattening module includes: the both sides board of relative design, rotate respectively and install two between the curb plate and an initiative exhibition flat carry over pinch rolls and an supplementary exhibition flat carry over pinch rolls of flattening of mutual butt and install an exhibition flat driving motor on arbitrary curb plate, plastic film passes mutual butt initiatively exhibition flat carry over pinch rolls with assist between the exhibition flat carry over pinch rolls, exhibition flat driving motor passes through a drive mechanism drive initiative exhibition flat carry over pinch rolls rotates, realizes plastic film's exhibition is flat pulls.

Preferably, the transmission mechanism includes a chain transmission mechanism, a belt transmission mechanism or a gear transmission mechanism, and is not limited to the above list.

Preferably, the flattening module further comprises a pair of adjusting mechanisms, the pair of adjusting mechanisms are respectively arranged on the side plates and used for adjusting the extrusion force of the auxiliary flattening traction roller on the active flattening traction roller, the flattening effect of the plastic film is improved, and the plastic film is further prevented from being broken or deformed.

Preferably, adjustment mechanism includes slidable mounting and is in a slide, drive on the curb plate a sliding push rod of slide, install cooperate on the curb plate a fixing base of push rod, supplementary exhibition flat carry-over pinch rolls installation is rotated and is installed on the slide, be equipped with the screw thread on the push rod, be equipped with in the fixing base with a push rod complex internal thread hole utilizes the auto-lock performance of screw thread to reach propulsive purpose, improves the precision of adjusting.

Preferably, a spring is further arranged between the push rod and the sliding seat, so that the plastic film is prevented from being broken or deformed when the active flattening traction roller and the auxiliary flattening traction roller are pulled, and overload protection is further realized.

Preferably, a hand wheel is installed at one end, far away from the auxiliary flattening traction roller, of the push rod, so that the adjustment is more labor-saving.

The inflation film manufacturing machine includes: the device comprises a rack, an extrusion device arranged at the bottom of the rack, a die head connected with the extrusion device, a cooling device used for cooling the film bubble, a bubble stabilizing frame positioned above the die head and used for stabilizing the film bubble, a herringbone plate arranged above the bubble stabilizing frame, a pair of film bubble traction rollers arranged on the herringbone plate and used for drawing the film bubble, and a preset number of guide rollers arranged on the rack.

Preferably, the corona treatment module and the flattening module are respectively installed on the rack and are positioned on the same side of the rack

Preferably, the film blowing machine further comprises a feeding device, and the feeding device is connected with the extruding device to realize feeding operation.

Preferably, the guide roll arranged in the film blowing equipment and close to the corona machine is a flattening roll, the middle part of the flattening roll bulges and gradually becomes smaller towards two ends, and the flattening of the plastic film is realized by utilizing the structural characteristics of the flattening roll.

The invention has the beneficial effects that:

the invention provides film blowing equipment, wherein an intermediate treatment device is arranged between a film blowing machine and a winding machine, the intermediate treatment device comprises a corona treatment module for performing corona treatment on the outer surface of one side of a plastic film and a flattening module for flattening the plastic film, the flattening module is arranged between an electric treatment module and the winding machine, the passing plastic film is flattened through extrusion force abutted between an active flattening traction roller and an auxiliary flattening traction roller, so that the plastic film is ensured to be in a flattened state when passing through the corona treatment module, the phenomenon of corona dead angle caused by the wrinkle problem is eliminated, meanwhile, the plastic film is always kept in a tensioned state, the corona treatment of the plastic film by the corona treatment module is more uniform, and meanwhile, a guide roller arranged in the film blowing equipment and close to the corona machine is a flattening roller, the flattening roller middle part is bloated and is diminishing gradually to both ends, utilizes the characteristic of its structure to realize that plastic film's exhibition is further improved plastic film gets into corona treatment module's exhibition flat effect.

Furthermore, the plastic film which penetrates through the flattening module and enters the winding machine is kept in a flattening state, so that the rolled coiled material is ensured to be even and flat, subsequent unnecessary processes are saved, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a film blowing apparatus provided in an embodiment of the present invention;

fig. 2 is a schematic three-dimensional structure diagram of a flattening module in the intermediate processing device provided in the present embodiment.

In the figure: 1-feeding device, 2-extruding device, 3-die head, 4-cooling air ring, 5-bubble, 5A-plastic film, 6-bubble stabilizing frame, 7-herringbone plate, 8-corona treatment module, 9-flattening module, 10-bubble traction roller, 11-air blower, 12 a-first guide roller, 12 b-second guide roller, 13-winding machine, 80-first corona guide roller, 81-corona head, 82-corona frame, 83-second corona guide roller, 100-frame, 900-side plate, 900A-transverse connecting rod, 901-active flattening traction roller, 902-chain transmission mechanism, 92 a-first chain wheel, 92 b-chain, 92 c-second chain wheel, 903-flattening driving motor, 904-auxiliary flattening traction roller, 905-hand wheel, 906-pushing rod, 907-spring, 908-limiting block, 909-sliding seat and 910-fixing seat.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the embodiments.

Referring to fig. 1, the present embodiment provides a film blowing apparatus including: a film blowing machine is used for blowing the plastic in the molten state into a film bubble 5 and then cooling the film bubble into a plastic film 5A; and a winder 13 for winding the plastic film 5A; and an intermediate processing device, intermediate processing device sets up the inflation film manufacturing machine with between the rolling machine 13, intermediate processing device includes the edge a corona treatment module 8 and a flat module 9 of exhibition that the direction of plastic film 5A rolling arranged gradually.

Referring to fig. 1, the film blowing machine includes a frame 100, an extrusion device 2 disposed at the bottom of the frame 100, a die 3 connected to the extrusion device 2, a cooling device for cooling the bubble 5, a bubble stabilizing frame 6 disposed above the die 3 for stabilizing the bubble 5, a chevron plate 7 disposed above the bubble stabilizing frame 6, a pair of bubble pulling rollers 10 disposed on the chevron plate 7 for pulling the bubble 5, and a predetermined number of guide rollers mounted on the frame 100, the cooling device including a cooling air ring 4 and a blower 11 for supplying cooling air, the predetermined number of guide rollers including a first guide roller 12a and a second guide roller 12b in this embodiment, the first guide roller 12a and the second guide roller 12b being mounted on the frame 100 in turn along the winding direction of the plastic film 5A, the second guide roll 12b is arranged close to the corona treatment module 8.

The film blowing machine further comprises a feeding device 1, wherein the feeding device 1 is connected with the extruding device 2, and the feeding device 1 facilitates feeding of an operator.

Further, in one embodiment, the second guide roll 12b is a flattening roll, and the middle of the flattening roll is bulged and gradually reduced towards the two ends, so that the plastic film 5A is flattened by using the structural characteristics of the flattening roll.

Referring to fig. 1, the corona treatment module 8 includes: a corona frame 82, a corona head 81, a first corona guide roll 80, a second corona guide roll 83 and a corona controller, corona frame 82 is installed on the machine, corona head 81 is followed plastic film 5A width direction installs on corona frame 82, corona controller with corona head 81 electric connection, first corona guide roll 80 is located corona head 81's left side, second guide roll 12b is located corona head 81's below, plastic film 5A follows first corona guide roll 80 penetrates, corona head 81 is right after corona treatment is implemented to the surface of plastic film 5A one side, plastic film 5A follows again second corona guide roll 83 wears out to get into flattening module 9.

Referring to fig. 1 and 2, the flattening module 9 and the corona treatment module 8 are disposed on the same side of the rack 100, the flattening module 9 includes two side plates 900 that are designed oppositely, the two side plates 900 are mounted on the rack 100, at least two transverse connecting rods 900A, a driving flattening pull roller 901 and an auxiliary flattening pull roller 904 that are rotatably mounted between the two side plates 900 and abut against each other, and a flattening drive motor 903 mounted on any one of the side plates 900 are connected between the two side plates 900, the plastic film 5A passes through the space between the driving flattening pull roller 901 and the auxiliary flattening pull roller 904 that abut against each other, the flattening drive motor 903 drives the driving flattening pull roller 901 to rotate through a transmission mechanism, so as to achieve flattening traction of the plastic film 5A, the transmission mechanism includes, but is not limited to, a chain transmission mechanism 902, a, A belt transmission mechanism (not shown) or a gear transmission mechanism (not shown), in this embodiment, a chain transmission mechanism is selected as the transmission mechanism for transmitting power, and the chain transmission mechanism 902 includes a first sprocket 92a installed at the output end of the flattening motor, a second sprocket 92c disposed on the actively flattening traction roller 901 opposite to the first sprocket 92a, and a chain 92b sleeved on the first sprocket 92a and the second sprocket 92c for transmitting power.

The flattening module 9 further includes a pair of adjusting mechanisms, the pair of adjusting mechanisms are respectively disposed on the two side plates 900 and used for adjusting the pressing force of the auxiliary flattening pulling roll 904 on the active flattening pulling roll 901, so as to improve the flattening effect of the plastic film 5A and further avoid breaking or deforming the plastic film 5A, the adjusting mechanism includes a sliding seat 909 slidably mounted on the side plate 900, the sliding seat 909 and a dovetail groove (not shown) formed between the two limiting blocks 908 on the side plate 900 cooperate to achieve sliding, or may be a sliding groove (not shown), a push rod 906 driving the sliding seat 909 to slide, and a fixing seat 910 mounted on the side plate 900 and cooperating with the push rod 906, the auxiliary flattening pulling roll 904 is rotatably mounted on the sliding seat 909, and the push rod 906 is provided with threads, an internal threaded hole (not shown) matched with the pushing rod 906 is formed in the fixed seat 910, the pushing purpose is achieved by utilizing the self-locking performance of threads, and the adjusting precision is improved; a spring 907 is arranged between the push rod 906 and the sliding seat 909, so that the plastic film 5A is prevented from being broken or deformed when the active flattening traction roller 901 and the auxiliary flattening traction roller 904 are pulled, and overload protection is further realized; and a hand wheel 905 is arranged at one end of the push rod 906, which is far away from the auxiliary flattening traction roller 904, so that the adjustment is more labor-saving.

Combine a blown film equipment that this embodiment of figures 1 and 2 provided the inflation film manufacturing machine with be equipped with an intermediate processing device between the rolling machine 13, intermediate processing device has gathered corona treatment and flat processing function of exhibition, and plastic film 5A is the exhibition flat state when guaranteeing corona treatment and rolling, eliminates plastic film 5A because of the corona dead angle that the fold brought and rolling unevenness scheduling problem, wherein intermediate processing device includes the corona treatment module 8 of corona treatment is implemented to the surface of plastic film 5A one side, and right plastic film 5A exhibition flat processing the exhibition flat module 9, exhibition flat module 9 sets up between electrical treatment module with rolling machine 13, through actively flatten carry out the carry-over pinch rolls 901 with supplementary exhibition pinch rolls 904 between the extrusion force of butt will pass plastic film 5A implement the exhibition flat processing, consequently guarantee plastic film 5A and passing keep flattening state during corona treatment module 8, eliminate the fold problem and lead to having the phenomenon at corona dead angle, keep plastic film 5A all the time simultaneously and be in the tensioning state, make corona treatment module 8 right plastic film 5A corona treatment is more even, simultaneously be close to in the blown film equipment the guide roll sets up the flattening roller, the flattening roller middle part is bloated and is dwindled gradually to both ends, utilizes the characteristic of its structure to realize plastic film 5A's the flattening further improvement plastic film 5A and gets into corona treatment module 8's flattening effect.

Further, the plastic film 5A which penetrates through the flattening module 9 and enters the winding machine 13 is also kept in a flattened state, so that the rolled coiled material is ensured to be even and flat, subsequent unnecessary processes are saved, and the production efficiency is improved.

The foregoing description is only of particular embodiments of the present invention, but it will be understood by those skilled in the art that the present invention is by way of illustration only, the scope of the present invention being defined by the appended claims. Accordingly, all equivalent changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A film blowing apparatus, comprising:

the film blowing machine is used for blowing the plastic in the molten state into film bubbles and then cooling the film bubbles into a plastic film; and

the winding machine is used for winding operation of the plastic film; it is characterized in that the film blowing equipment further comprises:

an intermediate processing apparatus provided between the film blowing machine and the winding machine, the intermediate processing apparatus comprising: the corona treatment module and the flattening module are sequentially arranged along the winding direction of the plastic film;

the corona treatment module includes: the corona machine frame, a corona head, a first corona guide roller, a second corona guide roller and a corona controller, wherein the corona head is installed on the corona machine frame along the width direction of the plastic film, the corona controller is electrically connected with the corona head, the first corona guide roller is positioned on the left side of the corona head, the second corona guide roller is positioned below the corona head, the plastic film penetrates through the first corona guide roller, and after the corona head performs corona treatment on the outer surface of one side of the plastic film, the plastic film penetrates out of the second corona guide roller to enter the flattening module;

The flattening module includes: the both sides board of relative design, rotate respectively and install two between the curb plate and an initiative exhibition flat carry over pinch rolls and an supplementary exhibition flat carry over pinch rolls of flattening of mutual butt and install an exhibition flat driving motor on arbitrary curb plate, plastic film passes mutual butt initiatively exhibition flat carry over pinch rolls with assist between the exhibition flat carry over pinch rolls, exhibition flat driving motor passes through a drive mechanism drive initiative exhibition flat carry over pinch rolls rotates, realizes plastic film's exhibition is flat pulls.

2. The film blowing apparatus according to claim 1, wherein the transmission mechanism includes a chain transmission mechanism, a belt transmission mechanism, or a gear transmission mechanism.

3. The film blowing apparatus according to claim 1, wherein the flattening module further comprises a pair of adjusting mechanisms respectively provided on the two side plates for adjusting the pressing force of the auxiliary flattening pulling roll against the active flattening pulling roll.

4. The film blowing equipment according to claim 3, wherein the adjusting mechanism comprises a sliding seat slidably mounted on the side plate, a pushing rod driving the sliding seat to slide, and a fixing seat mounted on the side plate and engaged with the pushing rod, the auxiliary flattening pulling roller is rotatably mounted on the sliding seat, the pushing rod is provided with threads, and the fixing seat is provided with an internal threaded hole engaged with the pushing rod.

5. The film blowing apparatus according to claim 4, wherein a spring is further provided between said push rod and said slide.

6. The film blowing equipment according to claim 5, wherein a hand wheel is installed at one end of the push rod away from the auxiliary flattening traction roller.

7. The film blowing apparatus of claim 1, wherein the film blowing machine comprises: the device comprises a rack, an extrusion device arranged at the bottom of the rack, a die head connected with the extrusion device, a cooling device used for cooling the film bubble, a bubble stabilizing frame positioned above the die head and used for stabilizing the film bubble, a herringbone plate arranged above the bubble stabilizing frame, a pair of film bubble traction rollers arranged on the herringbone plate and used for drawing the film bubble, and a preset number of guide rollers arranged on the rack.

8. The film blowing apparatus according to claim 7, wherein the corona treatment module and the flattening module are respectively mounted on the frame and located on the same side of the frame.

9. The film blowing apparatus of claim 7, further comprising a feeding device coupled to the extrusion device.

10. The film blowing apparatus according to any one of claims 7 to 9, wherein the guide roll provided near the corona in the film blowing machine is a flattening roll, and the middle part of the flattening roll is bulged and gradually becomes smaller towards both ends.