Film blowing machine

Abstract

The utility model provides a film blowing machine which comprises an extrusion assembly, the output end of the extrusion assembly is provided with a heating assembly, the heating assembly is connected to a film blowing die head, and the film blowing die head is provided with an adjustable air ring; a propeller strut is arranged at the upper end of the adjustable air ring. A traction assembly is arranged at the tail end of the propeller strut, and a winding assembly is arranged at the rear end of the traction assembly. The adjustable air ring comprises a plurality of air inlets and an air outlet; a first water cooling ring is arranged on the outer side of the blow-out opening; and the first water cooling ring is communicated with the water cooling port. By arranging the water cooling ring at the air ring, the temperature can be accurately controlled, the melt state can be stabilized, the appearance and performance of the film are improved, and the yield is increased.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of a film blowing device, in particular to a film blowing machine. BACKGROUND

[0002] The film blowing machine is widely applied in the plastic processing industry, and mainly comprises an extruder, a head, a die and an air ring. In the production process, dry polyethylene particles are added into a feeding hopper, and the particles are pushed forward and gradually melted through the rotation and thrust of a screw. The melted plastic is extruded from a die orifice after impurities are removed through the head, and is cooled, blown, pulled and wound through the air ring, so that a film product is finally prepared.

[0003] At present, the film blowing device has a device for providing high air pressure connected to the air ring position, and has a certain cooling effect during film blowing. Therefore, the air ring position does not have a temperature adjusting structure, so that the melt viscosity of the film blowing machine is easily reduced and the fluidity is enhanced during long-time work, resulting in defects such as corrugation, opacity and crystal points on the film surface. The appearance and performance of the film are affected, and the film does not meet the quality requirements, thereby affecting the yield. Therefore, the utility model provides a film blowing machine to at least partially solve the problems in the prior art. UTILITY MODEL CONTENT

[0004] In view of the problems, the application is proposed to provide a film blowing machine to overcome the problems or at least partially solve the problems.

[0005] A film blowing machine comprises:

[0006] An extrusion assembly is provided with a heating assembly at the output end, the heating assembly is connected to a film blowing die, and an adjustable air ring is arranged on the film blowing die.

[0007] A person frame is arranged at the upper end of the adjustable air ring. A traction assembly is arranged at the end of the person frame, and a winding assembly is arranged at the rear end of the traction assembly.

[0008] The adjustable air ring comprises a plurality of air inlets and a blow outlet. A first water cooling ring is arranged outside the blow outlet. The first water cooling ring is in communication with a water cooling port.

[0009] Optionally, a second water cooling ring is further arranged inside the air duct formed by the air inlets, and the second water cooling ring is in communication with the water cooling port.

[0010] Optionally, a tension wheel is further arranged between the traction assembly and the winding assembly.

[0011] Optionally, a feeding hopper is further arranged at the position where the extrusion assembly is connected to the heating assembly.

[0012] Optionally, further comprising a mobile workbench for carrying the film blowing machine;

[0013] The lower end of the mobile workbench is provided with casters, and the mobile workbench is internally provided with electrical elements for controlling the film blowing machine.

[0014] Optionally, the heating assembly is externally provided with an anti-scald cover.

[0015] Optionally, further comprising a mobile console; the mobile console is electrically connected to the electrical elements in the mobile workbench.

[0016] The mobile console is provided with a touch screen.

[0017] The present application has the following advantages:

[0018] In the embodiment of the present application, through the extrusion assembly, the output end thereof is provided with a heating assembly, the heating assembly is connected to a film blowing die head, the film blowing die head is provided with an adjustable air ring; the upper end of the adjustable air ring is provided with a herringbone frame; the end of the herringbone frame is provided with a traction assembly, and the rear end of the traction assembly is provided with a winding assembly; the adjustable air ring comprises a plurality of air inlets and a blowing outlet; the outer side of the blowing outlet is provided with a first water cooling ring; the first water cooling ring is in communication with a water cooling port. By arranging the water cooling ring at the air ring, the temperature can be accurately controlled, the melt state is stabilized, the appearance and performance of the film are improved, and the yield is improved. The above tension wheel can flexibly adjust the film tension, ensure stable transmission, and reduce quality defects. The mobile console and the touch screen enhance the operation convenience, realize centralized control and intelligent management; the mobile workbench and the angle wheel improve the mobility of the equipment. The anti-scald cover of the heating assembly improves the operation safety, protects the equipment components, reduces heat loss, and meets the safety specifications. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the description of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laboriousness.

[0020] Fig. 1 is a structure schematic diagram of a film blowing machine provided by an embodiment of the present application;

[0021] Fig. 2 is a structure schematic diagram of a film blowing machine provided by an embodiment of the present application;

[0022] Fig. 3 is a structure schematic diagram of a mobile console of a film blowing machine provided by an embodiment of the present application.

[0023] In the drawings, 101, mobile workbench; 102, extrusion assembly; 103, feeding hopper; 104, heating assembly; 105, film blowing die; 106, air ring; 107, herringbone frame; 108, traction assembly; 109, winding assembly; 110, tension wheel; 111, caster; 201, mobile console; 202, touch screen; 161, air inlet; 162, air outlet; 163, first water cooling ring; 164, second water cooling ring; 165, water cooling port. DETAILED DESCRIPTION

[0024] To make the objectives, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0025] Reference Figs. 1-2 , a film blowing machine provided by an embodiment of the present application is shown, which comprises: an extrusion assembly 102, an output end of which is provided with a heating assembly 104, the heating assembly being connected to a film blowing die 105, the extrusion assembly 102 being provided with the heating assembly at the output end, which can ensure that the initial state of the melt is suitable; the film blowing die 105 is provided with an adjustable air ring 106; the adjustable air ring 106 is provided with a herringbone frame 107 at the upper end; the herringbone frame 107 is provided with a traction assembly 108 at the end, the traction assembly 108 being provided with a winding assembly 109 at the rear end; the adjustable air ring 106 comprises a plurality of air inlets 161 and an air outlet 162; the air outlet 162 is provided with a first water cooling ring 163 outside; the first water cooling ring 163 is in communication with a water cooling port 165, a water cooling structure is arranged at the adjustable air ring 106 of the film blowing die 105, and the heating and cooling structures cooperate with each other to keep the temperature at a constant state. The herringbone frame 107, the traction assembly 108 and the winding assembly 109 ensure the normal conveying and collecting of the film in the production process, and the overall device design makes the film production process more stable and efficient, and the various components work cooperatively, further ensuring the stability of the film quality.

[0026] In this embodiment, water is supplied to the first water cooling ring 163 through the water cooling port 165, which can effectively reduce the temperature of the air blown by the air ring 106. During the film blowing process, when the film blowing machine works for a long time, the melt viscosity tends to decrease and the flowability tends to increase. In this case, the water cooling structure can be used to cool the air blown by the air ring 106. This helps to stabilize the state of the melt and avoid defects such as corrugation, opacity, and crystal points on the surface of the film caused by excessive temperature, thereby improving the appearance quality of the film. The performance of the film is closely related to the temperature control during the production process. By adjusting the temperature of the air ring 106 through the water cooling ring, the film forming process can be carried out in a more suitable temperature environment. This can effectively reduce the changes in the internal structure of the film caused by abnormal temperature, such as reducing the generation of crystal points, making the texture of the film more uniform and the transparency higher, and meeting the performance requirements of high-quality films. Since the surface defects of the film caused by temperature problems during long-term work are solved, the film produced has better appearance and performance and meets the quality requirements. In the film production process, yield is a key indicator. Reducing defects such as corrugation, opacity, and crystal points can effectively improve the yield of the product, reduce production costs, and improve production efficiency.

[0027] In the following, one of the film blowing machines in the various exemplary embodiments of the present application will be further described.

[0028] In the embodiments of the present application, a film blowing machine is provided, wherein the inside of the air duct formed by the air inlet 161 is further provided with a second water cooling ring 164, and the second water cooling ring 164 is in communication with the water cooling port 165. The second water cooling ring 164 is arranged inside the air duct formed by the air inlet 161 and is in communication with the water cooling port 165, which further enhances the temperature adjustment capability of the air ring. In addition to the first water cooling ring 163 outside the air outlet 162, the second water cooling ring 164 can cool the air flow during its entry into the air duct, so that the air can be cooled during its flow in the entire air ring, thereby making the temperature adjustment more uniform and accurate. The temperature gradient in the air ring can be better controlled to avoid local temperature being too high or too low. Cooling at the air inlet 161 can cool the air in advance, so that the air can reach a more ideal temperature before being blown out, providing more stable and suitable cooling conditions for the film blowing process. Compared with only arranging a water cooling ring outside the air outlet 162, the problem of melt viscosity decrease and flowability increase caused by high temperature can be more effectively inhibited.

[0029] In the embodiments of the present application, a tension wheel 110 is further arranged between the traction assembly 108 and the winding assembly 109. The tension wheel 110 arranged between the traction assembly 108 and the winding assembly 109 can effectively adjust the tension of the film. In the film production process, appropriate tension is crucial for the formation and performance of the film. The tension wheel can adjust the tension in real time according to the actual situation of the film, avoiding the film being too loose or too tight. When the film is loose, the tension wheel can tighten the film to prevent wrinkles; when the film is too tight, the tension wheel 110 can provide a certain buffer to avoid the film being broken or deformed due to excessive tension. The film produced by the traction assembly 108 is pulled by the traction wheel, and the tension is adjusted by the tension wheel 110, so that the film can maintain a uniform and stable state during the transmission from the traction assembly 108 to the winding assembly 109, reducing the film deviation caused by uneven tension, and ensuring that the film can accurately enter the winding assembly, improving the continuity and consistency of production. The automatic winding is performed by the winding roller on the winding assembly 109, and a cutter assembly can be arranged at the front end of the winding roller to cut and switch the roller when the winding is completed.

[0030] In the embodiments of the present application, the position where the extrusion assembly 102 is connected with the heating assembly 104 is further provided with a feeding hopper 103; the feeding hopper 103 is used for feeding the extrusion assembly 102. The extrusion assembly is preferably a single-screw extruder, which extrudes the mixed material to the position of the film blowing die 105 through the rotation of the screw. The material is heated during the extrusion process to reach a molten state, and then blown out by the air ring 106 to form a ring-shaped film.

[0031] In the embodiments of the present application, a mobile console 201 and a mobile workbench 101 for carrying the film blowing machine are further included. The mobile workbench 101 is provided with casters 111 at the lower end, and the mobile workbench 101 is provided with electrical elements for controlling the film blowing machine. The mobile console 201 is electrically connected to the electrical elements in the mobile workbench 101, and the mobile console 201 is provided with a touch screen 202. The operability of the equipment is significantly enhanced by the mobile console 201 and the touch screen 202. Specifically, through the touch screen 202, the operator can more intuitively and conveniently operate and monitor the film blowing machine. Various parameters such as heating temperature, water flow of the water-cooled ring, traction speed, and tension of the tension wheel can be set and adjusted on the touch screen 202. Compared with the traditional operation mode, the operation is more simple and efficient, and the possibility of operation error is reduced.

[0032] The above-mentioned mobile workbench 101 and casters 111 are equipped, which makes the film blowing machine have good mobility. The film blowing machine can be conveniently moved between different work areas, improving the use flexibility of the equipment. For the scene that needs to produce film in different places or different production layouts, such mobility is very useful, which can flexibly adjust the equipment position according to the production plan and demand, and improve the production efficiency. By using the touch screen 202, more advanced control programs can also be developed to realize the automation and intelligent operation of the film blowing machine. For example, the parameters of the equipment can be automatically adjusted according to the preset production program, the production process can be monitored and data recorded in real time, and once an abnormal situation occurs, an alarm can be prompted in time to facilitate the operation personnel to troubleshoot and maintain, thereby improving the management level of the equipment and the intelligent degree of production.

[0033] In the embodiment of the present application, a scalding shield (not shown in the figure) is arranged outside the heating assembly 104. By arranging the scalding shield outside the heating assembly 104, the risk of scalding the operator due to the high temperature of the heating assembly 104 during work is avoided. The scalding shield can effectively isolate the heating assembly, avoid accidental contact of the operator with the high-temperature heating assembly, prevent scalding accidents, and significantly improve the safety during operation. The scalding shield not only protects the personnel, but also protects other components around the heating assembly. It prevents other components from being damaged due to long-term high-temperature radiation of the heating assembly, prolongs the service life of the equipment, and reduces the probability of occurrence of problems such as component aging and deformation caused by high temperature.

[0034] Although the preferred embodiments of the embodiments of the present application have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concept. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0035] Finally, it should also be noted that in this document, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or terminal device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or terminal device including the element.

[0036] The above has carried on the detailed introduction to the film blowing machine provided by the application, the principle and implementation mode of the application are described by applying specific examples in the paper, the above embodiment description is only used for helping understanding the method and core idea of the application; at the same time, for the general technical personnel in the art, according to the idea of the application, the specific implementation mode and application range will have changes, and the above is described, the content of the specification should not be understood as the limitation of the application.

Claims

1. A blown film machine, characterized in that, include: An extrusion assembly has a heating assembly at its output end, the heating assembly being connected to a blown film die head, and the blown film die head being equipped with an adjustable air ring; The adjustable air ring is provided with an A-frame at its upper end; the A-frame is provided with a traction component at its lower end, and a winding component is provided at the rear end of the traction component; The adjustable air ring includes multiple air inlets and an air outlet; a first water-cooling ring is provided on the outside of the air outlet; the first water-cooling ring is connected to the water-cooling inlet.

2. The blown film machine according to claim 1, characterized in that, A second water-cooling ring is also provided inside the air duct formed by the air inlet, and the second water-cooling ring is connected to the water-cooling inlet.

3. The blown film machine according to claim 1 or 2, characterized in that, A tension wheel is also provided between the traction assembly and the winding assembly.

4. The blown film machine according to claim 1, characterized in that, The extrusion assembly is further provided with a feeding hopper at the location where it is connected to the heating assembly.

5. The blown film machine according to claim 1, characterized in that, It also includes a movable worktable for supporting the blown film machine; The mobile workbench is equipped with casters at its lower end, and electrical components for controlling the blown film machine are installed inside the mobile workbench.

6. The blown film machine according to claim 1, characterized in that, The heating component is equipped with a heat-proof cover.

7. The blown film machine according to claim 5, characterized in that, Also includes: A mobile control console; the mobile control console is electrically connected to electrical components within the mobile workbench; The mobile control panel is equipped with a touch screen.

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