CN223520198U - A blown film device with uniform thickness adjustment function - Google Patents

Abstract

The utility model discloses film blowing equipment with a uniform thickness adjusting function, which comprises a film blowing equipment main body, wherein an extruder and a film blowing machine die head which are connected with each other are arranged on the film blowing equipment main body, a screw is arranged in the extruder, the upper end of the extruder is provided with a feeding tank, a die head center rod is arranged in the film blowing machine die head, a modularized temperature control mechanism is further arranged outside the film blowing machine die head, a positioning frame is arranged on the film blowing equipment main body, a traction roller, a guide roller and a winding roller are also rotatably arranged on the positioning frame, and a protective cover plate is covered outside the positioning frame. The infrared thickness gauges are respectively arranged at different heights of the side surface of the film blowing area of the film blowing equipment with the uniform thickness adjusting function, so that the detection treatment of the film thickness can be carried out, the adjustment treatment of the film blowing thickness can be carried out by accurately controlling the temperature of the modularized temperature control mechanism, the adjustment of the position in direct contact with the film bubble is reduced, and the uniformity of the film blowing thickness is ensured.

Description

Film blowing equipment with uniform thickness adjusting function

Technical Field

The utility model relates to the technical field of film blowing equipment, in particular to film blowing equipment with a uniform thickness adjusting function.

Background

The film blowing equipment is a main mechanical equipment for producing various plastic films and is widely applied to the fields of food packaging, daily necessities packaging, industrial packaging and the like. The basic working principle of the film blowing equipment is that plastic raw materials are heated and melted, then are extruded through an annular die head to form a continuous tubular film bubble, then are cooled and shaped, and finally are drawn and rolled into a finished film.

The prior film blowing equipment can adjust the film blowing thickness through operations such as feeding adjustment, temperature control, die head clearance adjustment, traction speed control, cooling force adjustment and the like, but in the production process, different control modes are adopted, the size of a product can be possibly influenced, for example, the size of a film bubble can be increased or reduced by adopting the feeding adjustment mode, the production quality problem is caused, the thickness can be more accurately controlled through adjusting the die head clearance, but the die head clearance is usually adjusted in a shutdown state, the operation is complex and inconvenient, and meanwhile, the direct contact part with the film bubble is adjusted, so that part of waste can be generated, and waste is caused.

Disclosure of utility model

The utility model aims to provide a film blowing device with a uniform thickness adjusting function, which solves the problems that the size of a film bubble is increased or reduced by adopting a feeding adjusting mode in the film blowing device on the market, which is proposed by the background technology, so that the production quality is caused, the thickness can be controlled more accurately by adjusting a die gap, the die gap is usually controlled in a shutdown state, the operation is complex and inconvenient, and meanwhile, the direct contact part with the film bubble is adjusted, so that a part of waste is generated, and the waste is caused.

The film blowing equipment with the uniform thickness adjusting function comprises a film blowing equipment main body, wherein an extruder and a film blowing machine die head which are connected with each other are arranged on the film blowing equipment main body, a screw is installed in the extruder, a feeding tank is arranged at the upper end of the extruder, a die head center rod is installed in the film blowing machine die head, a modularized temperature control mechanism is further installed outside the film blowing machine die head, a positioning frame is arranged on the film blowing equipment main body, a traction roller, a guide roller and a winding roller are also rotatably installed on the positioning frame, a protective cover plate is covered outside the positioning frame, the film blowing machine die head is located on the inner side of the protective cover plate, film blowing limit rollers are evenly arranged above the film blowing machine die head at intervals, and infrared thickness gauges are respectively installed above the film blowing limit rollers with different heights.

Preferably, a cooling pipe column is inserted in the middle of the upper end of the die head of the film blowing machine, and the upper end of the cooling pipe column is close to the lower part of the traction roller.

Preferably, the infrared thickness gauge faces the cooling pipe column, and the highest end of the cooling pipe column is higher than the uppermost infrared thickness gauge.

Preferably, a polygonal locating frame is further arranged above the die head of the film blowing machine, the film blowing limiting roller is rotatably arranged on the polygonal locating frame through a rotating shaft, and the polygonal locating frame is welded on the locating frame.

Preferably, a cooling chamber is further arranged inside the protective cover plate, and the cooling chamber is positioned on the side face of the die head of the film blowing machine.

Preferably, the modularized temperature control mechanisms form a circular ring structure through assembly, and the inner sides of the modularized temperature control mechanisms are tightly attached to the outer part of the die head of the film blowing machine.

Compared with the prior art, the film blowing equipment with the uniform thickness adjusting function has the beneficial effects that the infrared thickness gauges are respectively arranged at different heights of the side surface of the film blowing area, so that the detection processing of the film thickness can be performed, the adjustment processing of the film blowing thickness can be performed by precisely controlling the temperature of the modularized temperature control mechanism, the adjustment of the direct contact part with the film bubble is reduced, and the uniformity of the film blowing thickness is ensured. This inflation film manufacturing equipment with even thickness regulatory function sets up modularization control by temperature change mechanism at inflation film manufacturing machine die head, and easy dismouting is maintained, and the outside sets up the dust cover simultaneously, can avoid impurity to get into the production region, improves control by temperature change and cooling dynamics, reaches energy-conserving purpose.

Drawings

FIG. 1 is a schematic diagram of a film blowing apparatus with a uniform thickness adjusting function according to the present utility model;

FIG. 2 is a top view of a die head of a film blowing machine of a film blowing device with uniform thickness adjustment according to the present utility model;

Fig. 3 is a schematic diagram of the installation position structure of an infrared thickness gauge of a film blowing device with a uniform thickness adjusting function.

In the figure, 1, a film blowing device main body; 2, a feeding tank, 3, an extruder, 4, a screw, 5, a die head of a film blowing machine, 501, a modularized temperature control mechanism, 502, a die head center rod, 6, a cooling chamber, 7, a winding roller, 8, a traction roller, 9, a positioning frame, 10, a guide roller, 11, a film blowing limit roller, 1101, a polygonal positioning frame, 12, a protective cover plate, 13, an infrared thickness meter, 14 and a cooling pipe column.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the film blowing equipment with the uniform thickness adjusting function comprises a film blowing equipment main body 1, wherein an extruder 3 and a film blowing machine die head 5 which are connected with each other are arranged on the film blowing equipment main body 1, a screw 4 is arranged in the extruder 3, a feeding tank 2 is arranged at the upper end of the extruder 3, the feeding tank 2 is used for feeding materials into the extruder 3, the materials are melted when the extruder 3 passes through a heating structure and then are extruded into the film blowing machine die head 5 by the screw 4, a die head center rod 502 is arranged in the film blowing machine die head 5, a modularized temperature control mechanism 501 is further arranged outside the film blowing machine die head 5, the cooling speed of a melt can be effectively controlled by precisely controlling the temperature condition of the film blowing machine die head 5, thereby avoiding affecting the uniformity of the thickness of the film, the shutdown problem that can effectively avoid inflation film manufacturing machine die head 5 adjustment to bring can prevent simultaneously that traction roller 8 from adjusting improperly and causing the waste material to produce, adjust the position that does not contact with the membrane bubble direct, effectively avoid the production of inferior quality, be equipped with locating rack 9 on the inflation film manufacturing equipment main part 1, inflation film manufacturing machine die head 5 top still is equipped with polygon locating rack 1101, and inflation film manufacturing limiting cylinder 11 rotates through the pivot and installs on polygon locating rack 1101, and polygon locating rack 1101 welds on locating rack 9, this structure carries out fixed processing through polygon locating rack 1101 to inflation film manufacturing limiting cylinder 11, can make inflation film manufacturing limiting cylinder 11 carry out outside limiting processing to the membrane bubble, and still rotate on the locating rack 9 and install traction roller 8 The guide roller 10 and the wind-up roller 7, the traction roller 8 clamps and pulls the film through the power structure, the guide roller 10 flattens and conveys the film bubble to guide, the wind-up roller 7 winds the cooled film, the protective cover plate 12 covers the outer part of the positioning frame 9, the protective cover plate 12 covers the blown film and the cooling area, the impurities can be prevented from entering the blown film area, the film blowing equipment main body 1 is ensured to be reliably positioned, the film blowing machine die head 5 is positioned at the inner side of the protective cover plate 12, the cooling chamber 6 is also arranged in the protective cover plate 12, the cooling chamber 6 is positioned at the side surface of the film blowing machine die head 5, the structure can further cool the film in the conveying through the cooling chamber 6 to perform molding treatment, meanwhile, the influence of the cooling chamber 6 on the heating of the film blowing machine die head 5 part can be reduced, the modularized temperature control mechanism 501 forms a circular ring structure through assembling, the inner side of the modularized temperature control mechanism 501 is tightly attached to the outside of the die head 5 of the film blowing machine, the temperature of each part can be respectively adjusted by the arrangement of the modularized temperature control mechanism 501, the temperature is ensured to be consistent, the thickness is uniformly adjusted, the film blowing limit rollers 11 are uniformly arranged above the die head 5 of the film blowing machine at intervals, the infrared thickness meters 13 are respectively arranged above the film blowing limit rollers 11 with different heights, the infrared thickness meters 13 face the cooling pipe column 14, the highest end of the cooling pipe column 14 is higher than the uppermost infrared thickness meter 13, when the infrared thickness meter 13 is installed and positioned through the cooling pipe column 14, the structure ensures that the thickness of the film at the same part is measured by the infrared thickness meters 13 at different heights, ensures the normal operation of the film blowing by monitoring the change of the film thickness, and simultaneously can detect whether the final film thickness meets the requirement, the cooling pipe column 14 can also block interference problems during measurement of the infrared thickness gauge 13.

Working principle: when the film blowing equipment with the uniform thickness adjusting function is used, firstly, plastic raw materials enter an extruder 3 through a feeding tank 2, the extruder 3 melts the raw materials under the action of a heating structure, the melted materials are driven by a screw 4 to be extruded into a film blowing machine die head 5 under the driving action of a reducing motor, the film blowing machine die head 5 carries out film blowing treatment through high-pressure gas, so that film bubbles are blown out from an air ring formed by the outer ring of a die head center rod 502, a modularized temperature control mechanism 501 carries out temperature control treatment on different areas of the film blowing machine die head 5 respectively to ensure that the cooling effect of the film bubbles is consistent everywhere, then the film bubbles are pulled by a traction roller 8 after being flattened through a guide roller 10 under the guidance of a film blowing limit roller 11, and under the condition that the pulling speed of the traction roller 8 is fixed, the cooling speed of the film bubbles is controlled by adjusting the temperature of the modularized temperature control mechanism 501, the thickness of the blown film can be controlled, the infrared thickness gauge 13 measures the thickness of the same part of the film bubble at different heights so as to adjust the temperature condition in time, if the thickness measured by the infrared thickness gauge 13 below is overlarge, the temperature of the modularized temperature control mechanism 501 is reduced, if the thickness measured by the infrared thickness gauge 13 below is overlarge, the temperature of the modularized temperature control mechanism 501 is raised, the thickness measured by the infrared thickness gauge 13 above is kept consistent, the cooling pipe column 14 leads cooling gas to be directly led to the traction roller 8 area for further cooling the traction part, the polygonal positioning frame 1101 reliably positions the film blowing limiting roller 11 through the positioning frame 9, the protective cover plate 12 is used for dust prevention during film blowing and cooling, then the film is guided by the guide roller 10 to be wound on the winding roller 7 and cooled by the cooling chamber 6 during winding and conveying, the film blowing device main body 1 can uniformly control the film blowing thickness, thereby completing a series of works.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The film blowing equipment with the uniform thickness adjusting function comprises a film blowing equipment main body (1) and is characterized in that an extruder (3) and a film blowing machine die head (5) which are connected with each other are arranged on the film blowing equipment main body (1), a screw (4) is arranged in the extruder (3), a feeding tank (2) is arranged at the upper end of the extruder (3), a die head center rod (502) is arranged in the film blowing machine die head (5), a modularized temperature control mechanism (501) is further arranged outside the film blowing machine die head (5), a positioning frame (9) is arranged on the film blowing equipment main body (1), a traction roller (8), a guide roller (10) and a winding roller (7) are further rotatably arranged on the positioning frame (9), a protective cover plate (12) is arranged on the outer cover of the positioning frame (9), the film blowing machine die head (5) is positioned on the inner side of the protective cover plate (12), film blowing limit rollers (11) are uniformly arranged at intervals above the film blowing machine die heads (5), and infrared gauges (13) are respectively arranged above the film blowing limit rollers (11) with different heights.

2. The film blowing equipment with the uniform thickness adjusting function according to claim 1, wherein a cooling pipe column (14) is inserted in the middle of the upper end of the die head (5) of the film blowing machine, and the upper end of the cooling pipe column (14) is close to the lower part of the traction roller (8).

3. A film blowing apparatus having a uniform thickness adjusting function as set forth in claim 2, wherein said infrared thickness gauge (13) is directed toward the cooling column (14), and the uppermost end of the cooling column (14) is higher than the uppermost infrared thickness gauge (13).

4. The film blowing equipment with the uniform thickness adjusting function according to claim 1, wherein a polygonal positioning frame (1101) is further arranged above the film blowing machine die head (5), the film blowing limit roller (11) is rotatably arranged on the polygonal positioning frame (1101) through a rotating shaft, and the polygonal positioning frame (1101) is welded on the positioning frame (9).

5. A film blowing apparatus with a uniform thickness adjusting function as set forth in claim 1, wherein a cooling chamber (6) is further provided inside the protective cover plate (12), and the cooling chamber (6) is located at the side of the die head (5) of the film blowing machine.

6. The film blowing equipment with the uniform thickness adjusting function according to claim 1, wherein a circular ring structure is formed between the modularized temperature control mechanisms (501) through assembling, and the inner sides of the modularized temperature control mechanisms (501) are tightly attached to the outside of a die head (5) of a film blowing machine.